{"id":4474,"date":"2026-09-07T10:43:34","date_gmt":"2026-09-07T02:43:34","guid":{"rendered":"https:\/\/cnkuangya.com\/?p=4474"},"modified":"2026-09-07T16:20:23","modified_gmt":"2026-09-07T08:20:23","slug":"why-spd-connected-in-parallel","status":"publish","type":"post","link":"https:\/\/cnkuangya.com\/ru\/blog\/why-spd-connected-in-parallel\/","title":{"rendered":"\u041f\u043e\u0447\u0435\u043c\u0443 \u0423\u0417\u0418\u041f \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e, \u0430 \u043d\u0435 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">\u0415\u0441\u043b\u0438 \u0432\u044b \u043f\u043e\u0441\u043c\u043e\u0442\u0440\u0438\u0442\u0435 \u043d\u0430 \u0442\u0438\u043f\u0438\u0447\u043d\u0443\u044e \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0443 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\u0446\u0435\u043f\u0438, \u043a\u043e\u0442\u043e\u0440\u0443\u044e \u043e\u043d\u043e \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u0442, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u043c\u043d\u043e\u0433\u0438\u0435 \u043c\u043e\u043d\u0442\u0430\u0436\u043d\u0438\u043a\u0438 \u0437\u0430\u0434\u0430\u044e\u0442\u0441\u044f \u0432\u043e\u043f\u0440\u043e\u0441\u043e\u043c, \u043f\u043e\u0447\u0435\u043c\u0443 <strong>\u0423\u0417\u0418\u041f \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e, \u0430 \u043d\u0435 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u043e\u0447\u0435\u043c\u0443?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0440\u043e\u0441\u0442\u043e\u0439 \u043e\u0442\u0432\u0435\u0442 \u0437\u0430\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u0432 \u0442\u043e\u043c, \u0447\u0442\u043e \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u043d\u043e\u0435 \u0423\u0417\u0418\u041f \u043d\u0435 \u0434\u043e\u043b\u0436\u043d\u043e \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u0442\u044c \u0447\u0435\u0440\u0435\u0437 \u0441\u0435\u0431\u044f \u0440\u0430\u0431\u043e\u0447\u0438\u0439 \u0442\u043e\u043a \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438. \u0412 \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u044b\u0445 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u043e\u043d\u043e \u043d\u0430\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u0432 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0438 \u0432\u044b\u0441\u043e\u043a\u043e\u0433\u043e \u0438\u043c\u043f\u0435\u0434\u0430\u043d\u0441\u0430. \u041f\u0440\u0438 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\u043f\u043e\u043c\u043e\u0433\u0430\u044f \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0442\u044c \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435, \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u0435 \u043d\u0430 \u0447\u0443\u0432\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0423\u043f\u0440\u043e\u0449\u0435\u043d\u043d\u0430\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u0430\u044f \u0441\u0445\u0435\u043c\u0430 \u0432\u044b\u0433\u043b\u044f\u0434\u0438\u0442 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u0418\u0441\u0442\u043e\u0447\u043d\u0438\u043a \u043f\u0438\u0442\u0430\u043d\u0438\u044f \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u041d\u0430\u0433\u0440\u0443\u0437\u043a\u0430\n<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-parallel-connection-wiring-1024x683.jpg\" alt=\"SPD parallel connection wiring in an electrical distribution system\" class=\"wp-image-4476\" srcset=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-parallel-connection-wiring-1024x683.jpg 1024w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-parallel-connection-wiring-300x200.jpg 300w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-parallel-connection-wiring-768x512.jpg 768w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-parallel-connection-wiring-18x12.jpg 18w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-parallel-connection-wiring-600x400.jpg 600w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-parallel-connection-wiring.jpg 1536w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u0422\u0438\u043f\u043e\u0432\u043e\u0435 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u043d\u043e\u0435 \u0423\u0417\u0418\u041f \u0443\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0446\u0435\u043f\u0438, \u0430 \u043d\u0435 \u043d\u0435\u043f\u043e\u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0432 \u0446\u0435\u043f\u0438 \u043f\u0440\u043e\u0442\u0435\u043a\u0430\u043d\u0438\u044f \u0440\u0430\u0431\u043e\u0447\u0435\u0433\u043e \u0442\u043e\u043a\u0430 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0423\u0417\u0418\u041f \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e \u0446\u0435\u043f\u0438, \u0430 \u043d\u0435 \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043d\u0435\u043f\u043e\u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0432 \u043f\u0443\u0442\u044c \u043f\u0440\u043e\u0442\u0435\u043a\u0430\u043d\u0438\u044f \u0440\u0430\u0431\u043e\u0447\u0435\u0433\u043e \u0442\u043e\u043a\u0430 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438. <strong><a href=\"https:\/\/www.phoenixcontact.com\/assets\/c8428ddc-254d-40b8-a2f2-540ac13bd818\/index.html#0\" rel=\"noopener\">\u041e\u0441\u043d\u043e\u0432\u044b \u0437\u0430\u0449\u0438\u0442\u044b \u043e\u0442 \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0439 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Phoenix Contact<\/a><\/strong> \u0442\u0430\u043a\u0436\u0435 \u043f\u043e\u044f\u0441\u043d\u044f\u044e\u0442, \u0447\u0442\u043e \u0423\u0417\u0418\u041f \u043c\u043e\u0433\u0443\u0442 \u0431\u044b\u0442\u044c \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u044b \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u043c\u0443 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u044e \u0438\u043b\u0438 \u043c\u0435\u0436\u0434\u0443 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u043c\u0438 \u043f\u0440\u043e\u0432\u043e\u0434\u043d\u0438\u043a\u0430\u043c\u0438.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Eaton \u043e\u043f\u0438\u0441\u044b\u0432\u0430\u0435\u0442 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u044b\u0435 (\u0438\u043b\u0438 \u0448\u0443\u043d\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435) \u0423\u0417\u0418\u041f \u0430\u043d\u0430\u043b\u043e\u0433\u0438\u0447\u043d\u044b\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c: \u0438\u0445 \u0441\u043e\u0435\u0434\u0438\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u043f\u0440\u043e\u0432\u043e\u0434\u043d\u0438\u043a\u0438 \u043d\u0435 \u043f\u0440\u043e\u0432\u043e\u0434\u044f\u0442 \u0440\u0430\u0431\u043e\u0447\u0438\u0439 \u0442\u043e\u043a \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438, \u0430 \u043e\u0442\u0432\u043e\u0434\u044f\u0442 \u043a\u0440\u0430\u0442\u043a\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0439 \u0442\u043e\u043a, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0439 \u0441 \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u043d\u044b\u043c\u0438 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430\u043c\u0438.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u0444\u0443\u043d\u0434\u0430\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u043e\u0435 \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u0435 \u043e\u0431\u044a\u044f\u0441\u043d\u044f\u0435\u0442, \u043f\u043e\u0447\u0435\u043c\u0443 \u0431\u043e\u043b\u044c\u0448\u0438\u043d\u0441\u0442\u0432\u043e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u0437\u0430\u0449\u0438\u0442\u044b \u043e\u0442 \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043d\u044b\u0445 \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0439 (\u0423\u0417\u0418\u041f) \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u044e\u0442\u0441\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-9-16 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Why is an SPD connected in parallel instead of series?\" width=\"563\" height=\"1000\" src=\"https:\/\/www.youtube.com\/embed\/itkgmV2pQ98?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption class=\"wp-element-caption\">\u041f\u043e\u0441\u043c\u043e\u0442\u0440\u0438\u0442\u0435, \u043a\u0430\u043a \u0432\u0435\u0434\u0435\u0442 \u0441\u0435\u0431\u044f \u0442\u0438\u043f\u0438\u0447\u043d\u043e\u0435 \u0423\u0417\u0418\u041f \u0432\u043e \u0432\u0440\u0435\u043c\u044f \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u0438 \u043f\u0440\u0438 \u0432\u043e\u0437\u043d\u0438\u043a\u043d\u043e\u0432\u0435\u043d\u0438\u0438 \u0441\u043a\u0430\u0447\u043a\u0430 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f.<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u0427\u0442\u043e \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442 \u0441 \u0423\u0417\u0418\u041f \u0432\u043e \u0432\u0440\u0435\u043c\u044f \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0427\u0442\u043e\u0431\u044b \u043f\u043e\u043d\u044f\u0442\u044c \u043f\u0440\u0438\u043d\u0446\u0438\u043f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f, \u043f\u043e\u043b\u0435\u0437\u043d\u043e \u0441\u043d\u0430\u0447\u0430\u043b\u0430 \u0440\u0430\u0437\u043e\u0431\u0440\u0430\u0442\u044c\u0441\u044f, \u0447\u0442\u043e \u0434\u0435\u043b\u0430\u0435\u0442 \u0423\u0417\u0418\u041f \u043f\u0440\u0438 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0438 \u0441\u043a\u0430\u0447\u043a\u043e\u0432 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u041f\u0440\u0438 \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u043e\u043c \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0438 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0412\u043e \u0432\u0440\u0435\u043c\u044f \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u043e\u0441\u0442\u0430\u0435\u0442\u0441\u044f \u043d\u0438\u0436\u0435 \u0443\u0440\u043e\u0432\u043d\u044f, \u043f\u0440\u0438 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0423\u0417\u0418\u041f \u043d\u0430\u0447\u0438\u043d\u0430\u0435\u0442 \u043f\u0440\u043e\u0432\u043e\u0434\u0438\u0442\u044c \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0442\u043e\u043a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0412 \u0423\u0417\u0418\u041f \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u0432\u0430\u0440\u0438\u0441\u0442\u043e\u0440\u043e\u0432 (MOV) \u0437\u0430\u0449\u0438\u0442\u043d\u044b\u0439 \u044d\u043b\u0435\u043c\u0435\u043d\u0442 \u043e\u0431\u043b\u0430\u0434\u0430\u0435\u0442 \u043e\u0442\u043d\u043e\u0441\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0432\u044b\u0441\u043e\u043a\u0438\u043c \u0438\u043c\u043f\u0435\u0434\u0430\u043d\u0441\u043e\u043c \u043f\u0440\u0438 \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u044b\u0445 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442, \u0447\u0442\u043e \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0447\u0438\u0439 \u0442\u043e\u043a \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u043f\u0440\u043e\u0442\u0435\u043a\u0430\u0442\u044c \u043f\u043e \u0448\u0442\u0430\u0442\u043d\u043e\u0439 \u0441\u0438\u043b\u043e\u0432\u043e\u0439 \u0446\u0435\u043f\u0438 \u043a \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0435.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0423\u0417\u0418\u041f \u043f\u043e \u0441\u0443\u0442\u0438 \u043d\u0430\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 \u043e\u0436\u0438\u0434\u0430\u043d\u0438\u044f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0423\u043f\u0440\u043e\u0449\u0435\u043d\u043d\u0430\u044f \u0441\u0445\u0435\u043c\u0430 \u0432\u044b\u0433\u043b\u044f\u0434\u0438\u0442 \u0442\u0430\u043a:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u041f\u0438\u0442\u0430\u043d\u0438\u0435 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u041d\u0430\u0433\u0440\u0443\u0437\u043a\u0430\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u043d\u0435 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u043e \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442, \u0447\u0442\u043e \u0447\u0435\u0440\u0435\u0437 \u043a\u0430\u0436\u0434\u043e\u0435 \u0423\u0417\u0418\u041f \u0442\u043e\u043a \u043d\u0435 \u043f\u0440\u043e\u0442\u0435\u043a\u0430\u0435\u0442 \u0432\u043e\u0432\u0441\u0435. \u0412 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u043e\u0442 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 \u0438 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438 \u0423\u0417\u0418\u041f, \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0441\u0443\u0442\u0441\u0442\u0432\u043e\u0432\u0430\u0442\u044c \u043d\u0435\u0431\u043e\u043b\u044c\u0448\u043e\u0439 \u0442\u043e\u043a \u0443\u0442\u0435\u0447\u043a\u0438 \u0438\u043b\u0438 \u0440\u0430\u0431\u043e\u0447\u0438\u0439 \u0442\u043e\u043a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0412\u0430\u0436\u043d\u044b\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 \u0437\u0430\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u0432 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u043c:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u041e\u0431\u044b\u0447\u043d\u044b\u0439 \u0442\u043e\u043a \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u043d\u0435 \u0434\u043e\u043b\u0436\u0435\u043d \u043f\u0440\u043e\u0442\u0435\u043a\u0430\u0442\u044c \u0447\u0435\u0440\u0435\u0437 \u0442\u0438\u043f\u0438\u0447\u043d\u043e\u0435 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u043d\u043e\u0435 \u0423\u0417\u0418\u041f.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Think of the SPD as a protection path waiting beside the main circuit rather than a component that must continuously carry the equipment&#8217;s operating current.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u0427\u0442\u043e \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442 \u043f\u0440\u0438 \u0432\u043e\u0437\u043d\u0438\u043a\u043d\u043e\u0432\u0435\u043d\u0438\u0438 \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043d\u043e\u0433\u043e \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0418\u043c\u043f\u0443\u043b\u044c\u0441\u043d\u043e\u0435 \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 \u2014 \u044d\u0442\u043e \u043a\u0440\u0430\u0442\u043a\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0435 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0432\u044b\u0437\u0432\u0430\u043d\u043e \u0442\u0430\u043a\u0438\u043c\u0438 \u0441\u043e\u0431\u044b\u0442\u0438\u044f\u043c\u0438, \u043a\u0430\u043a \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u043d\u044b\u0435 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u044b, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 \u0443\u0434\u0430\u0440\u043e\u043c \u043c\u043e\u043b\u043d\u0438\u0438, \u0438\u043b\u0438 \u043a\u043e\u043c\u043c\u0443\u0442\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0435 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When the voltage across the SPD rises sufficiently, the SPD&#8217;s protection elements begin conducting.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0415\u0441\u043b\u0438 \u0432\u0430\u043c \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u043e\u0435 \u043e\u0431\u044a\u044f\u0441\u043d\u0435\u043d\u0438\u0435 \u0442\u043e\u0433\u043e, \u043a\u0430\u043a \u0437\u0430\u0449\u0438\u0442\u043d\u044b\u0435 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u044b \u0440\u0435\u0430\u0433\u0438\u0440\u0443\u044e\u0442 \u043d\u0430 \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u043d\u044b\u0435 \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f, \u043e\u0437\u043d\u0430\u043a\u043e\u043c\u044c\u0442\u0435\u0441\u044c \u0441 \u043d\u0430\u0448\u0438\u043c \u0440\u0443\u043a\u043e\u0432\u043e\u0434\u0441\u0442\u0432\u043e\u043c \u043f\u043e <strong><a href=\"https:\/\/cnkuangya.com\/ru\/%d0%b1%d0%bb%d0%be%d0%b3\/how-dc-spd-works-operating-principles-components-engineers-guide\/\">\u043f\u0440\u0438\u043d\u0446\u0438\u043f\u0443 \u0440\u0430\u0431\u043e\u0442\u044b \u0423\u0417\u0418\u041f \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430<\/a><\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0415\u0433\u043e \u043f\u043e\u043b\u043d\u043e\u0435 \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 \u0440\u0435\u0437\u043a\u043e \u0441\u043d\u0438\u0436\u0430\u0435\u0442\u0441\u044f \u043f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441 \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u044b\u043c \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435\u043c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0442\u043e\u043a\u0443 \u0440\u0430\u0437\u0440\u044f\u0434\u0430 \u043f\u0440\u043e\u0442\u0435\u043a\u0430\u0442\u044c \u0447\u0435\u0440\u0435\u0437 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b\u0439 \u043f\u0443\u0442\u044c \u0437\u0430\u0449\u0438\u0442\u044b \u0438 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u0435\u0442 \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u043d\u043e\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435, \u0432\u043e\u0437\u043d\u0438\u043a\u0430\u044e\u0449\u0435\u0435 \u043d\u0430 \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u043c \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0438.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0423\u043f\u0440\u043e\u0449\u0435\u043d\u043d\u043e\u0435 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0432\u044b\u0433\u043b\u044f\u0434\u0438\u0442 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>                 \u041e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u041e\u0434\u043d\u0430\u043a\u043e \u044d\u0442\u0430 \u0441\u0445\u0435\u043c\u0430 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043b\u0438\u0448\u044c \u0443\u043f\u0440\u043e\u0449\u0435\u043d\u043d\u044b\u043c \u043f\u0440\u0438\u043c\u0435\u0440\u043e\u043c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0423\u0417\u0418\u041f \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u0442 <strong>\u043d\u0435 \u0432\u0441\u0435\u0433\u0434\u0430 \u043e\u0442\u0432\u043e\u0434\u044f\u0442 \u043a\u0430\u0436\u0434\u044b\u0439 \u0441\u043a\u0430\u0447\u043e\u043a \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f \u043d\u0435\u043f\u043e\u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u043d\u0430 \u0437\u0435\u043c\u043b\u044e<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0412 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u043e\u0442 \u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0438 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438 \u0423\u0417\u0418\u041f, \u0440\u0435\u0436\u0438\u043c\u044b \u0437\u0430\u0449\u0438\u0442\u044b \u043c\u043e\u0433\u0443\u0442 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u0442\u044c \u043c\u0435\u0436\u0434\u0443:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0424\u0430\u0437\u0430 \u0438 \u043d\u0435\u0439\u0442\u0440\u0430\u043b\u044c<\/li>\n\n\n\n<li>\u0424\u0430\u0437\u0430 \u0438 \u0437\u0430\u0449\u0438\u0442\u043d\u043e\u0435 \u0437\u0430\u0437\u0435\u043c\u043b\u0435\u043d\u0438\u0435<\/li>\n\n\n\n<li>\u041d\u0435\u0439\u0442\u0440\u0430\u043b\u044c \u0438 \u0437\u0430\u0449\u0438\u0442\u043d\u043e\u0435 \u0437\u0430\u0437\u0435\u043c\u043b\u0435\u043d\u0438\u0435<\/li>\n\n\n\n<li>\u0424\u0430\u0437\u0430 \u0438 \u0444\u0430\u0437\u0430<\/li>\n\n\n\n<li>\u041f\u043e\u043b\u043e\u0436\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0438 \u043e\u0442\u0440\u0438\u0446\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u043f\u043e\u043b\u044e\u0441\u0430 \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430<\/li>\n\n\n\n<li>\u041f\u0440\u043e\u0432\u043e\u0434\u043d\u0438\u043a\u0438 \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430 \u0438 \u0437\u0430\u0449\u0438\u0442\u043d\u043e\u0435 \u0437\u0430\u0437\u0435\u043c\u043b\u0435\u043d\u0438\u0435 (PE)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u043e \u044d\u0442\u043e\u0439 \u043f\u0440\u0438\u0447\u0438\u043d\u0435 \u0431\u043e\u043b\u0435\u0435 \u0442\u043e\u0447\u043d\u043e \u0431\u0443\u0434\u0435\u0442 \u0441\u043a\u0430\u0437\u0430\u0442\u044c:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0423\u0417\u0418\u041f \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0435\u0442 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u0443\u0435\u043c\u044b\u0439 \u043f\u0443\u0442\u044c \u0434\u043b\u044f \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430 \u0438 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u0435\u0442 \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u043d\u043e\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 \u043d\u0430 \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u043c \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0438.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0422\u043e\u0447\u043d\u044b\u0439 \u043f\u0443\u0442\u044c \u043f\u0440\u043e\u0442\u0435\u043a\u0430\u043d\u0438\u044f \u0442\u043e\u043a\u0430 \u0437\u0430\u0432\u0438\u0441\u0438\u0442 \u043e\u0442 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438 \u0423\u0417\u0418\u041f \u0438 \u0442\u043e\u043f\u043e\u043b\u043e\u0433\u0438\u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u044b.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u041f\u043e\u0447\u0435\u043c\u0443 \u0423\u0417\u0418\u041f \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0427\u0442\u043e\u0431\u044b \u043f\u043e\u043d\u044f\u0442\u044c, \u043f\u043e\u0447\u0435\u043c\u0443 \u0423\u0417\u0418\u041f \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e, \u043f\u043e\u043b\u0435\u0437\u043d\u043e \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u0442\u044c, \u0447\u0442\u043e \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442 \u043a\u0430\u043a \u0432\u043e \u0432\u0440\u0435\u043c\u044f \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b, \u0442\u0430\u043a \u0438 \u0432\u043e \u0432\u0440\u0435\u043c\u044f \u0441\u043a\u0430\u0447\u043a\u0430 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0421\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0432\u0430\u0436\u043d\u044b\u0445 \u043f\u0440\u0438\u0447\u0438\u043d, \u043f\u043e \u043a\u043e\u0442\u043e\u0440\u044b\u043c <strong>\u0423\u0417\u0418\u041f, \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u043d\u043e\u0435 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e<\/strong> \u0448\u0438\u0440\u043e\u043a\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u044d\u043d\u0435\u0440\u0433\u0438\u0438.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u0423\u0417\u0418\u041f \u043d\u0435 \u0434\u043e\u043b\u0436\u0435\u043d \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u0442\u044c \u0447\u0435\u0440\u0435\u0437 \u0441\u0435\u0431\u044f \u0440\u0430\u0431\u043e\u0447\u0438\u0439 \u0442\u043e\u043a \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u043e\u0434\u043d\u043e \u0438\u0437 \u0441\u0430\u043c\u044b\u0445 \u0431\u043e\u043b\u044c\u0448\u0438\u0445 \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u0439 \u043c\u0435\u0436\u0434\u0443 \u0423\u0417\u0418\u041f \u0438 \u0442\u0430\u043a\u0438\u043c\u0438 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u043c\u0438, \u043a\u0430\u043a \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0432\u044b\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044c \u0438\u043b\u0438 \u043f\u043b\u0430\u0432\u043a\u0438\u0439 \u043f\u0440\u0435\u0434\u043e\u0445\u0440\u0430\u043d\u0438\u0442\u0435\u043b\u044c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u044c\u0442\u0435, \u0447\u0442\u043e \u0438\u043d\u0432\u0435\u0440\u0442\u043e\u0440 \u043e\u0431\u044b\u0447\u043d\u043e \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u043f\u0440\u0438 \u0442\u043e\u043a\u0430\u0445 \u0432 \u0434\u0435\u0441\u044f\u0442\u043a\u0438 \u0430\u043c\u043f\u0435\u0440.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u0442\u0438\u043f\u0438\u0447\u043d\u043e\u0433\u043e \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u0423\u0417\u0418\u041f \u0440\u0430\u0431\u043e\u0447\u0438\u0439 \u0442\u043e\u043a \u043d\u0435 \u0434\u043e\u043b\u0436\u0435\u043d \u043d\u0435\u043f\u0440\u0435\u0440\u044b\u0432\u043d\u043e \u043f\u0440\u043e\u0445\u043e\u0434\u0438\u0442\u044c \u0447\u0435\u0440\u0435\u0437 \u0441\u0430\u043c\u043e \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0412\u043c\u0435\u0441\u0442\u043e \u044d\u0442\u043e\u0433\u043e:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u0418\u0441\u0442\u043e\u0447\u043d\u0438\u043a \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u041d\u0430\u0433\u0440\u0443\u0437\u043a\u0430\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u0423\u0417\u0418\u041f \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0446\u0435\u043f\u0438.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442, \u0447\u0442\u043e \u0432\u044b\u0431\u043e\u0440 \u0423\u0417\u0418\u041f \u043c\u043e\u0436\u0435\u0442 \u043e\u0441\u043d\u043e\u0432\u044b\u0432\u0430\u0442\u044c\u0441\u044f \u043f\u0440\u0435\u0438\u043c\u0443\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u043d\u0430 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f\u0445 \u043a \u0437\u0430\u0449\u0438\u0442\u0435 \u043e\u0442 \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0439, \u0430 \u043d\u0435 \u043d\u0430 \u043f\u043e\u043b\u043d\u043e\u043c \u0440\u0430\u0431\u043e\u0447\u0435\u043c \u0442\u043e\u043a\u0435 \u043a\u0430\u0436\u0434\u043e\u0439 \u043d\u0438\u0436\u0435\u0441\u0442\u043e\u044f\u0449\u0435\u0439 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Phoenix Contact similarly notes that its parallel-installed power SPDs appear electrically as a branch connected across the power distribution system rather than carrying the circuit&#8217;s normal ampacity.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u0423\u0417\u0418\u041f \u0432 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u043c \u0440\u0435\u0430\u0433\u0438\u0440\u0443\u0435\u0442 \u043d\u0430 \u0441\u043e\u0431\u044b\u0442\u0438\u044f \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0422\u0438\u043f\u0438\u0447\u043d\u043e\u0435 \u0423\u0417\u0418\u041f \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0447\u0443\u0432\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u043a \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0440\u0438 \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u043e\u043c \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0438 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u043e\u043d\u043e \u043e\u0441\u0442\u0430\u0435\u0442\u0441\u044f \u043f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043d\u0435\u0430\u043a\u0442\u0438\u0432\u043d\u044b\u043c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041a\u043e\u0433\u0434\u0430 \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u043d\u043e\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 \u0432\u044b\u0445\u043e\u0434\u0438\u0442 \u0437\u0430 \u043f\u0440\u0435\u0434\u0435\u043b\u044b \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0440\u0430\u0431\u043e\u0447\u0435\u0433\u043e \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u0430, \u0437\u0430\u0449\u0438\u0442\u043d\u044b\u0435 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u044b \u043d\u0430\u0447\u0438\u043d\u0430\u044e\u0442 \u043f\u0440\u043e\u0432\u043e\u0434\u0438\u0442\u044c \u0442\u043e\u043a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u043f\u0440\u0438\u043d\u0446\u0438\u043f\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f \u043e\u0442 \u043f\u043b\u0430\u0432\u043a\u043e\u0433\u043e \u043f\u0440\u0435\u0434\u043e\u0445\u0440\u0430\u043d\u0438\u0442\u0435\u043b\u044f, \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0432\u044b\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044f \u0438\u043b\u0438 \u0440\u0430\u0437\u044a\u0435\u0434\u0438\u043d\u0438\u0442\u0435\u043b\u044f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u041f\u0440\u0435\u0434\u043e\u0445\u0440\u0430\u043d\u0438\u0442\u0435\u043b\u044c<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u0418\u0441\u0442\u043e\u0447\u043d\u0438\u043a \u2192 \u041f\u0440\u0435\u0434\u043e\u0445\u0440\u0430\u043d\u0438\u0442\u0435\u043b\u044c \u2192 \u041d\u0430\u0433\u0440\u0443\u0437\u043a\u0430\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0410\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0432\u044b\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044c<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u0418\u0441\u0442\u043e\u0447\u043d\u0438\u043a \u2192 \u0410\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0432\u044b\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044c \u2192 \u041d\u0430\u0433\u0440\u0443\u0437\u043a\u0430\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0422\u0438\u043f\u043e\u0432\u043e\u0435 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e\u0435 \u0423\u0417\u0418\u041f<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u0418\u0441\u0442\u043e\u0447\u043d\u0438\u043a \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u041d\u0430\u0433\u0440\u0443\u0437\u043a\u0430\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u043b\u0430\u0432\u043a\u0438\u0439 \u043f\u0440\u0435\u0434\u043e\u0445\u0440\u0430\u043d\u0438\u0442\u0435\u043b\u044c \u0438\u043b\u0438 \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0432\u044b\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044c \u0434\u043e\u043b\u0436\u0435\u043d \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u043e \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u0442\u044c \u0442\u043e\u043a \u0446\u0435\u043f\u0438, \u0442\u0430\u043a \u043a\u0430\u043a \u043e\u043d \u0444\u0438\u0437\u0438\u0447\u0435\u0441\u043a\u0438 \u043d\u0430\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u0432 \u0446\u0435\u043f\u0438 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e\u0435 \u0423\u0417\u0418\u041f \u044d\u0442\u043e\u0433\u043e \u043d\u0435 \u0434\u0435\u043b\u0430\u0435\u0442.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u041f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e\u0435 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0435\u0442 \u043f\u0443\u0442\u044c \u0434\u043b\u044f \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0426\u0435\u043b\u044c \u0423\u0417\u0418\u041f \u0437\u0430\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u043d\u0435 \u0432 \u0442\u043e\u043c, \u0447\u0442\u043e\u0431\u044b \u201c\u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u0430\u0442\u044c\u201d \u043a\u0430\u0436\u0434\u044b\u0439 \u0441\u043a\u0430\u0447\u043e\u043a \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f \u0434\u043e \u0442\u043e\u0433\u043e, \u043a\u0430\u043a \u043e\u043d \u0434\u043e\u0441\u0442\u0438\u0433\u043d\u0435\u0442 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0412\u043c\u0435\u0441\u0442\u043e \u044d\u0442\u043e\u0433\u043e \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u044e\u0449\u0435\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 \u0423\u0417\u0418\u041f \u0440\u0435\u0430\u0433\u0438\u0440\u0443\u0435\u0442 \u043d\u0430 \u0432\u043e\u0437\u0440\u0430\u0441\u0442\u0430\u044e\u0449\u0435\u0435 \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u043d\u043e\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 \u0438 \u043f\u0440\u043e\u0432\u043e\u0434\u0438\u0442 \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043d\u044b\u0439 \u0442\u043e\u043a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u0435\u0442 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 \u0432 \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0446\u0435\u043f\u0438.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0432 \u0443\u043f\u0440\u043e\u0449\u0435\u043d\u043d\u043e\u0439 \u0444\u043e\u0442\u043e\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u0435:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u0424\u043e\u0442\u043e\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u043c\u0430\u0441\u0441\u0438\u0432 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u0418\u043d\u0432\u0435\u0440\u0442\u043e\u0440\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u0412\u043e \u0432\u0440\u0435\u043c\u044f \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u0438\u0442\u0430\u043d\u0438\u0435 \u043e\u0442 \u0444\u043e\u0442\u043e\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u043f\u0430\u043d\u0435\u043b\u0435\u0439 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u043f\u043e\u0441\u0442\u0443\u043f\u0430\u0442\u044c \u043a \u0438\u043d\u0432\u0435\u0440\u0442\u043e\u0440\u0443.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0412\u043e \u0432\u0440\u0435\u043c\u044f \u0441\u043a\u0430\u0447\u043a\u0430 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f \u0423\u0417\u0418\u041f \u0441\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0435\u0442 \u0432 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0438 \u0441\u043e \u0441\u0432\u043e\u0438\u043c \u0440\u0435\u0436\u0438\u043c\u043e\u043c \u0437\u0430\u0449\u0438\u0442\u044b \u0438 \u043f\u043e\u043c\u043e\u0433\u0430\u0435\u0442 \u0443\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0442\u044c \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u043d\u043e\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 \u043d\u0430 \u0431\u043e\u043b\u0435\u0435 \u043d\u0438\u0437\u043a\u043e\u043c \u0443\u0440\u043e\u0432\u043d\u0435, \u0447\u0435\u043c \u043e\u043d\u043e \u043c\u043e\u0433\u043b\u043e \u0431\u044b \u0434\u043e\u0441\u0442\u0438\u0447\u044c \u0432 \u043f\u0440\u043e\u0442\u0438\u0432\u043d\u043e\u043c \u0441\u043b\u0443\u0447\u0430\u0435.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u043e\u0441\u043d\u043e\u0432\u043d\u0430\u044f \u043f\u0440\u0438\u0447\u0438\u043d\u0430, \u043f\u043e \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0423\u0417\u0418\u041f \u0443\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e \u0446\u0435\u043f\u0438.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u0423\u0417\u0418\u041f \u043e\u0431\u044b\u0447\u043d\u043e \u043d\u0435 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0447\u0430\u0441\u0442\u044c\u044e \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0433\u043e \u043f\u0443\u0442\u0438 \u043f\u0438\u0442\u0430\u043d\u0438\u044f.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u043e\u0441\u043a\u043e\u043b\u044c\u043a\u0443 \u0442\u0438\u043f\u0438\u0447\u043d\u043e\u0435 \u0423\u0417\u0418\u041f \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u043a\u0430\u043a \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u0430\u044f \u0432\u0435\u0442\u0432\u044c, \u043e\u043d\u043e \u043d\u0435 \u0441\u0442\u0430\u043d\u043e\u0432\u0438\u0442\u0441\u044f \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u044b\u043c \u043f\u0440\u043e\u0432\u043e\u0434\u044f\u0449\u0438\u043c \u043f\u0443\u0442\u0435\u043c \u043c\u0435\u0436\u0434\u0443 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u043e\u043c \u0438 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u043e\u0439.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u0434\u0430\u0435\u0442 \u0432\u0430\u0436\u043d\u043e\u0435 \u043f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0435 \u043f\u0440\u0435\u0438\u043c\u0443\u0449\u0435\u0441\u0442\u0432\u043e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The system&#8217;s normal operating current does not depend on continuously passing through the SPD protection elements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041a\u043e\u043d\u0435\u0447\u043d\u043e, \u044d\u0442\u043e \u043d\u0435 \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442, \u0447\u0442\u043e \u043f\u043e\u0441\u043b\u0435 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u043e\u0431 \u0423\u0417\u0418\u041f \u043c\u043e\u0436\u043d\u043e \u0437\u0430\u0431\u044b\u0442\u044c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0423\u0417\u0418\u041f \u043c\u043e\u0433\u0443\u0442 \u0434\u0435\u0433\u0440\u0430\u0434\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0438\u043b\u0438 \u043e\u0442\u043a\u043b\u044e\u0447\u0430\u0442\u044c\u0441\u044f \u043f\u043e\u0441\u043b\u0435 \u0430\u043d\u043e\u043c\u0430\u043b\u044c\u043d\u044b\u0445 \u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u043d\u0430\u0433\u0440\u0443\u0437\u043e\u043a, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u0438\u0445 \u0438\u043d\u0434\u0438\u043a\u0430\u0446\u0438\u044e \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u044f \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u043f\u0435\u0440\u0438\u043e\u0434\u0438\u0447\u0435\u0441\u043a\u0438 \u043f\u0440\u043e\u0432\u0435\u0440\u044f\u0442\u044c.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Why Isn&#8217;t a Typical SPD Connected in Series?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u043e\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u043f\u0440\u0438\u0447\u0438\u043d \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0423\u0417\u0418\u041f \u0442\u0430\u043a\u0436\u0435 \u043f\u043e\u043c\u043e\u0433\u0430\u0435\u0442 \u043e\u0431\u044a\u044f\u0441\u043d\u0438\u0442\u044c, \u043f\u043e\u0447\u0435\u043c\u0443 \u0442\u0438\u043f\u0438\u0447\u043d\u043e\u0435 \u0448\u0443\u043d\u0442\u0438\u0440\u0443\u044e\u0449\u0435\u0435 \u0423\u0417\u0418\u041f \u043d\u0435 \u0443\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e \u0432 \u0446\u0435\u043f\u0438 \u043f\u0438\u0442\u0430\u043d\u0438\u044f \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0410\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0432\u044b\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u0438 \u0438 \u043f\u0440\u0435\u0434\u043e\u0445\u0440\u0430\u043d\u0438\u0442\u0435\u043b\u0438 \u043e\u0431\u044b\u0447\u043d\u043e \u0443\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u044e\u0442\u0441\u044f \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e, \u0442\u0430\u043a \u043a\u0430\u043a \u043e\u043d\u0438 \u0434\u043e\u043b\u0436\u043d\u044b \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u0442\u044c \u0447\u0435\u0440\u0435\u0437 \u0441\u0435\u0431\u044f \u0442\u043e\u043a \u0446\u0435\u043f\u0438. \u0422\u0438\u043f\u0438\u0447\u043d\u043e\u0435 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e\u0435 \u0423\u0417\u0418\u041f \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043e \u0434\u043b\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0434\u0440\u0443\u0433\u043e\u0439 \u0444\u0443\u043d\u043a\u0446\u0438\u0438.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u041d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u0442\u043e\u043a \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u0434\u043e\u043b\u0436\u0435\u043d \u043f\u0440\u043e\u0445\u043e\u0434\u0438\u0442\u044c \u0447\u0435\u0440\u0435\u0437 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u043d\u043e\u0435 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0418\u0441\u0442\u0438\u043d\u043d\u043e\u0435 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u0432\u044b\u0433\u043b\u044f\u0434\u0438\u0442 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u0418\u0441\u0442\u043e\u0447\u043d\u0438\u043a \u2192 \u0423\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e \u2192 \u041d\u0430\u0433\u0440\u0443\u0437\u043a\u0430\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u0415\u0441\u043b\u0438 \u0431\u044b \u0432\u0435\u0441\u044c \u0431\u043b\u043e\u043a \u0423\u0417\u0418\u041f \u0431\u044b\u043b \u0432\u043a\u043b\u044e\u0447\u0435\u043d \u0432 \u0446\u0435\u043f\u044c \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438, \u043e\u043d \u0434\u043e\u043b\u0436\u0435\u043d \u0431\u044b\u043b \u0431\u044b \u0432\u044b\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0442\u044c \u043d\u0435\u043f\u0440\u0435\u0440\u044b\u0432\u043d\u044b\u0439 \u0442\u043e\u043a \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0415\u0433\u043e \u043f\u0440\u043e\u0432\u043e\u0434\u043d\u0438\u043a\u0438, \u043a\u043b\u0435\u043c\u043c\u044b, \u0442\u0435\u043f\u043b\u043e\u0432\u0430\u044f \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f, \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u043f\u0440\u0438 \u043a\u043e\u0440\u043e\u0442\u043a\u043e\u043c \u0437\u0430\u043c\u044b\u043a\u0430\u043d\u0438\u0438 \u0438 \u043f\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u0435 \u043f\u0440\u0438 \u043e\u0442\u043a\u0430\u0437\u0435 \u0434\u043e\u043b\u0436\u043d\u044b \u0431\u044b\u0442\u044c \u0440\u0430\u0441\u0441\u0447\u0438\u0442\u0430\u043d\u044b \u043d\u0430 \u0442\u0430\u043a\u043e\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u043d\u0435 \u0442\u043e, \u043a\u0430\u043a \u043e\u0431\u044b\u0447\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442\u0441\u044f \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0435 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u044b\u0435 \u0423\u0417\u0418\u041f \u0442\u0438\u043f\u0430 1 \u0438\u043b\u0438 \u0442\u0438\u043f\u0430 2 \u0434\u043b\u044f \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u043d\u0430 DIN-\u0440\u0435\u0439\u043a\u0443.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u041d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430 \u0423\u0417\u0418\u041f \u043d\u0435 \u044f\u0432\u043b\u044f\u044e\u0442\u0441\u044f \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u043c\u0438 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f\u043c\u0438 \u0442\u043e\u043a\u0430 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e \u0432\u0430\u0436\u043d\u044b\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 \u043f\u0440\u0438 \u0447\u0442\u0435\u043d\u0438\u0438 \u043f\u0430\u0441\u043f\u043e\u0440\u0442\u043d\u043e\u0439 \u0442\u0430\u0431\u043b\u0438\u0447\u043a\u0438 \u0423\u0417\u0418\u041f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0440\u0435\u0434\u043f\u043e\u043b\u043e\u0436\u0438\u043c, \u043d\u0430 \u0423\u0417\u0418\u041f \u0443\u043a\u0430\u0437\u0430\u043d\u043e:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>In = 20 \u043a\u0410<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0438<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Imax = 40 \u043a\u0410<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-in-imax-vs-load-current-1024x683.jpg\" alt=\"SPD In and Imax surge current ratings compared with normal load current\" class=\"wp-image-4478\" srcset=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-in-imax-vs-load-current-1024x683.jpg 1024w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-in-imax-vs-load-current-300x200.jpg 300w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-in-imax-vs-load-current-768x512.jpg 768w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-in-imax-vs-load-current-18x12.jpg 18w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-in-imax-vs-load-current-600x400.jpg 600w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-in-imax-vs-load-current.jpg 1536w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">In \u0438 Imax \u043e\u043f\u0438\u0441\u044b\u0432\u0430\u044e\u0442 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u0440\u0430\u0437\u0440\u044f\u0434\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430 \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043d\u044b\u0445 \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0439, \u0430 \u043d\u0435 \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u0440\u0430\u0431\u043e\u0447\u0438\u0439 \u0442\u043e\u043a \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0446\u0435\u043f\u0438.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0415\u0441\u043b\u0438 \u044d\u0442\u0438 \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u0423\u0417\u0418\u041f \u0432\u0441\u0435 \u0435\u0449\u0435 \u0432\u044b\u0437\u044b\u0432\u0430\u044e\u0442 \u0432\u043e\u043f\u0440\u043e\u0441\u044b, \u043d\u0430\u0448\u0435 <strong><a href=\"https:\/\/cnkuangya.com\/ru\/%d0%b1%d0%bb%d0%be%d0%b3\/dc-spd-specifications\/\">\u0440\u0443\u043a\u043e\u0432\u043e\u0434\u0441\u0442\u0432\u043e \u043f\u043e \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u043c \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0430\u043c \u0423\u0417\u0418\u041f \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430<\/a><\/strong> \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u043e \u043e\u0431\u044a\u044f\u0441\u043d\u044f\u0435\u0442 Ucpv, In, Imax, Up \u0438 Iscpv.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u0438 \u0446\u0438\u0444\u0440\u044b \u043d\u0435 <strong>\u043d\u0435<\/strong> \u043e\u0437\u043d\u0430\u0447\u0430\u044e\u0442, \u0447\u0442\u043e \u0423\u0417\u0418\u041f \u0440\u0430\u0441\u0441\u0447\u0438\u0442\u0430\u043d\u043e \u043d\u0430 \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u0443\u044e \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0443 \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438 20 \u043a\u0410 \u0438\u043b\u0438 40 \u043a\u0410.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0414\u043b\u044f \u0423\u0417\u0418\u041f \u0442\u0438\u043f\u0430 2, <strong>\u041d\u0430 \u0441\u0430\u0439\u0442\u0435<\/strong> \u043e\u0442\u043d\u043e\u0441\u0438\u0442\u0441\u044f \u043a \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u043e\u043c\u0443 \u0440\u0430\u0437\u0440\u044f\u0434\u043d\u043e\u043c\u0443 \u0442\u043e\u043a\u0443, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u043e\u043c\u0443 \u0441 \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043e\u043c \u0442\u043e\u043a\u0430 8\/20 \u043c\u043a\u0441, \u0432 \u0442\u043e \u0432\u0440\u0435\u043c\u044f \u043a\u0430\u043a <strong>Imax<\/strong> \u043e\u0442\u043d\u043e\u0441\u0438\u0442\u0441\u044f \u043a \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u043c\u0443 \u0440\u0430\u0437\u0440\u044f\u0434\u043d\u043e\u043c\u0443 \u0442\u043e\u043a\u0443, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u043e\u043c\u0443 \u0441 \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043e\u043c 8\/20 \u043c\u043a\u0441.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Phoenix Contact&#8217;s technical definitions likewise describe In and Imax as impulse-current values flowing through the SPD, not normal continuous load-current ratings.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0418\u0442\u0430\u043a:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>In \u0438 Imax \u2014 \u044d\u0442\u043e \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u0442\u043e\u043a\u0430 \u0440\u0430\u0437\u0440\u044f\u0434\u0430 \u043f\u0440\u0438 \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043d\u044b\u0445 \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f\u0445. \u041e\u043d\u0438 \u043d\u0435 \u044f\u0432\u043b\u044f\u044e\u0442\u0441\u044f \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u044b\u043c \u0440\u0430\u0431\u043e\u0447\u0438\u043c \u0442\u043e\u043a\u043e\u043c \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u0435 \u043e\u0447\u0435\u043d\u044c \u0432\u0430\u0436\u043d\u043e \u043f\u0440\u0438 \u0432\u044b\u0431\u043e\u0440\u0435 \u0438\u043b\u0438 \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0438 \u0423\u0417\u0418\u041f.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u041e\u0437\u043d\u0430\u0447\u0430\u0435\u0442 \u043b\u0438 \u044d\u0442\u043e, \u0447\u0442\u043e \u0423\u0417\u0418\u041f \u0441 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c \u043d\u0435 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0442?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u041d\u0435\u0442.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u0432\u0430\u0436\u043d\u043e\u0435 \u0438\u0441\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0425\u043e\u0442\u044f \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043d\u044b\u0435 \u0432 \u0434\u0430\u043d\u043d\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435 \u0441\u0438\u043b\u043e\u0432\u044b\u0435 \u0423\u0417\u0418\u041f \u0442\u0438\u043f\u043e\u0432 1 \u0438 2 \u043e\u0431\u044b\u0447\u043d\u043e \u0443\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u044e\u0442\u0441\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e, \u0442\u0430\u043a\u0436\u0435 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0442 \u0441\u0431\u043e\u0440\u043a\u0438 \u0423\u0417\u0418\u041f \u0441 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c \u0438 \u0441\u0435\u0442\u0435\u0432\u044b\u0435 \u0444\u0438\u043b\u044c\u0442\u0440\u044b \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043d\u044b\u0445 \u043f\u043e\u043c\u0435\u0445 \u0441 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Schneider Electric \u043e\u0442\u043c\u0435\u0447\u0430\u0435\u0442, \u0447\u0442\u043e \u0438\u0437\u0434\u0435\u043b\u0438\u044f \u0441 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c \u043e\u0431\u044b\u0447\u043d\u043e \u0443\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u044e\u0442\u0441\u044f \u0432 \u0440\u0430\u0437\u0440\u044b\u0432 \u0446\u0435\u043f\u0438 \u0440\u044f\u0434\u043e\u043c \u0441 \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u044b\u043c\u0438 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0430\u043c\u0438, \u0432 \u0442\u043e \u0432\u0440\u0435\u043c\u044f \u043a\u0430\u043a \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e\u0435 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u0423\u0417\u0418\u041f \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0431\u043e\u043b\u0435\u0435 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043d\u044b\u043c \u0440\u0435\u0448\u0435\u043d\u0438\u0435\u043c \u0434\u043b\u044f \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0449\u0438\u0442\u043e\u0432 \u0438 \u043f\u0430\u043d\u0435\u043b\u0435\u0439.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A series-connected product has to be designed specifically to carry the circuit&#8217;s load current.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u043e\u044d\u0442\u043e\u043c\u0443 \u0431\u044b\u043b\u043e \u0431\u044b \u043d\u0435\u0432\u0435\u0440\u043d\u043e \u0443\u0442\u0432\u0435\u0440\u0436\u0434\u0430\u0442\u044c \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0435:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u201c\u0423\u0417\u0418\u041f \u043d\u0438\u043a\u043e\u0433\u0434\u0430 \u043d\u0435 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e.\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0411\u043e\u043b\u0435\u0435 \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438 \u0442\u043e\u0447\u043d\u043e\u0435 \u0443\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0438\u0435:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u0411\u043e\u043b\u044c\u0448\u0438\u043d\u0441\u0442\u0432\u043e \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043d\u044b\u0445 \u0423\u0417\u0418\u041f 1-\u0433\u043e \u0438 2-\u0433\u043e \u0442\u0438\u043f\u043e\u0432 \u0434\u043b\u044f \u0441\u0438\u0441\u0442\u0435\u043c \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u044d\u043d\u0435\u0440\u0433\u0438\u0438 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u044e\u0442\u0441\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e, \u043e\u0434\u043d\u0430\u043a\u043e \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0442 \u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u044b\u0435 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u0441 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c \u0434\u043b\u044f \u043e\u0441\u043e\u0431\u044b\u0445 \u0441\u043b\u0443\u0447\u0430\u0435\u0432 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">For solar PV and general distribution-board applications, always follow the actual SPD manufacturer&#8217;s wiring diagram.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u041f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e\u0435 \u0438 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435: \u043a\u0440\u0430\u0442\u043a\u043e\u0435 \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u0435<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u0412 \u0442\u0430\u0431\u043b\u0438\u0446\u0435 \u043d\u0438\u0436\u0435 \u043f\u043e\u043a\u0430\u0437\u0430\u043d\u043e, \u0447\u0435\u043c \u0442\u0438\u043f\u0438\u0447\u043d\u043e\u0435 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e <strong>\u0423\u0417\u0418\u041f, \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u043d\u043e\u0435 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e<\/strong> \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f \u043e\u0442 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430, \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u043d\u0435\u043f\u043e\u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0432 \u0446\u0435\u043f\u0438 \u0440\u0430\u0431\u043e\u0447\u0435\u0433\u043e \u0442\u043e\u043a\u0430 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438.<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/parallel-spd-vs-series-device-1024x683.jpg\" alt=\"Parallel SPD connection compared with a series-connected electrical device\" class=\"wp-image-4479\" srcset=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/parallel-spd-vs-series-device-1024x683.jpg 1024w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/parallel-spd-vs-series-device-300x200.jpg 300w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/parallel-spd-vs-series-device-768x512.jpg 768w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/parallel-spd-vs-series-device-18x12.jpg 18w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/parallel-spd-vs-series-device-600x400.jpg 600w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/parallel-spd-vs-series-device.jpg 1536w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u0422\u0438\u043f\u0438\u0447\u043d\u043e\u0435 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e\u0435 \u0423\u0417\u0418\u041f \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0446\u0435\u043f\u0438, \u0432 \u0442\u043e \u0432\u0440\u0435\u043c\u044f \u043a\u0430\u043a \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e \u0441 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c \u0443\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043d\u0435\u043f\u043e\u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0432 \u0440\u0430\u0437\u0440\u044b\u0432 \u0446\u0435\u043f\u0438 \u0440\u0430\u0431\u043e\u0447\u0435\u0433\u043e \u0442\u043e\u043a\u0430.<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u0425\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0430<\/th><th>\u0422\u0438\u043f\u043e\u0432\u043e\u0435 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e\u0435 \u0423\u0417\u0418\u041f<\/th><th>\u0423\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u044f<\/th><\/tr><\/thead><tbody><tr><td>\u041f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u043d\u0435\u043f\u043e\u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0432 \u0446\u0435\u043f\u044c \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438<\/td><td>\u041d\u0435\u0442<\/td><td>\u0414\u0430<\/td><\/tr><tr><td>\u041f\u043e\u043b\u043d\u044b\u0439 \u0442\u043e\u043a \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u043f\u0440\u043e\u0445\u043e\u0434\u0438\u0442 \u0447\u0435\u0440\u0435\u0437 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e<\/td><td>\u041d\u0435\u0442<\/td><td>\u0414\u0430<\/td><\/tr><tr><td>\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u0430\u044f \u0441\u0445\u0435\u043c\u0430 \u0434\u043b\u044f \u0423\u0417\u0418\u041f \u0442\u0438\u043f\u0430 1 \/ \u0442\u0438\u043f\u0430 2<\/td><td>\u0414\u0430<\/td><td>\u0412\u0441\u0442\u0440\u0435\u0447\u0430\u0435\u0442\u0441\u044f \u0440\u0435\u0436\u0435<\/td><\/tr><tr><td>\u041e\u0441\u043d\u043e\u0432\u043d\u043e\u0435 \u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435<\/td><td>\u041e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0435 \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u043d\u044b\u0445 \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0439 \u043f\u0443\u0442\u0435\u043c \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u043f\u0443\u0442\u0438 \u0434\u043b\u044f \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430<\/td><td>\u0417\u0430\u0432\u0438\u0441\u0438\u0442 \u043e\u0442 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438 \u0438\u0437\u0434\u0435\u043b\u0438\u044f<\/td><\/tr><tr><td>\u041d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0439 \u0434\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0442\u043e\u043a, \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u0432\u0430\u0436\u043d\u044b\u0439 \u0434\u043b\u044f \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u0432 \u0441\u0431\u043e\u0440\u0435<\/td><td>\u041e\u0431\u044b\u0447\u043d\u043e \u043d\u0435 \u0442\u0430\u043a, \u043a\u0430\u043a \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u0441 \u043b\u0438\u043d\u0435\u0439\u043d\u044b\u043c \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e\u043c<\/td><td>\u0414\u0430<\/td><\/tr><tr><td>\u0414\u043b\u0438\u043d\u0430 \u043f\u043e\u0434\u0432\u043e\u0434\u044f\u0449\u0438\u0445 \u043f\u0440\u043e\u0432\u043e\u0434\u043e\u0432 \u0432\u043b\u0438\u044f\u0435\u0442 \u043d\u0430 \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0442\u044b<\/td><td>\u0414\u0430<\/td><td>\u0412\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u044f\u044f \u043a\u043e\u043c\u043f\u043e\u043d\u043e\u0432\u043a\u0430 \u043c\u043e\u0436\u0435\u0442 \u0441\u043d\u0438\u0437\u0438\u0442\u044c \u0432\u043b\u0438\u044f\u043d\u0438\u0435 \u0434\u043b\u0438\u043d\u044b \u0432\u043d\u0435\u0448\u043d\u0438\u0445 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u044b\u0445 \u043f\u0440\u043e\u0432\u043e\u0434\u043d\u0438\u043a\u043e\u0432<\/td><\/tr><tr><td>\u0422\u0438\u043f\u043e\u0432\u044b\u0435 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f<\/td><td>\u0420\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0449\u0438\u0442\u044b, \u0432\u0432\u043e\u0434\u044b \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u044f, \u0444\u043e\u0442\u043e\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b<\/td><td>\u041e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0435 \u0447\u0443\u0432\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u0438\u043b\u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0437\u0430\u0449\u0438\u0442\u044b\/\u0444\u0438\u043b\u044c\u0442\u0440\u0430\u0446\u0438\u0438<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0412\u0430\u0436\u043d\u043e \u043d\u0435 \u0442\u043e, \u0447\u0442\u043e \u043e\u0434\u0438\u043d \u043c\u0435\u0442\u043e\u0434 \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0430\u043b\u044c\u043d\u043e \u201c\u0445\u043e\u0440\u043e\u0448\u201d, \u0430 \u0434\u0440\u0443\u0433\u043e\u0439 \u201c\u043f\u043b\u043e\u0445\u201d.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u0440\u0430\u0437\u043d\u044b\u0435 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b \u0438\u0437\u0434\u0435\u043b\u0438\u0439.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041e\u0434\u043d\u0430\u043a\u043e \u0434\u043b\u044f \u043e\u0431\u044b\u0447\u043d\u043e\u0433\u043e \u0423\u0417\u0418\u041f \u043d\u0430 DIN-\u0440\u0435\u0439\u043a\u0443 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e\u0435 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435, \u043a\u0430\u043a \u043f\u0440\u0430\u0432\u0438\u043b\u043e, \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0436\u0438\u0434\u0430\u0435\u043c\u044b\u043c \u0441\u043f\u043e\u0441\u043e\u0431\u043e\u043c \u043c\u043e\u043d\u0442\u0430\u0436\u0430.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u041a\u0430\u043a \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u0423\u0417\u0418\u041f \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0441\u043e\u043b\u043d\u0435\u0447\u043d\u044b\u0445 \u0444\u043e\u0442\u043e\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u043f\u0430\u043d\u0435\u043b\u0435\u0439 \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The same principle applies in many photovoltaic systems, where the SPD is connected in parallel with the DC circuit according to the manufacturer&#8217;s wiring configuration.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/dc-spd-parallel-connection-solar-pv-system-1024x683.jpg\" alt=\"DC SPD connected in parallel in a solar PV system\" class=\"wp-image-4477\" srcset=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/dc-spd-parallel-connection-solar-pv-system-1024x683.jpg 1024w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/dc-spd-parallel-connection-solar-pv-system-300x200.jpg 300w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/dc-spd-parallel-connection-solar-pv-system-768x512.jpg 768w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/dc-spd-parallel-connection-solar-pv-system-18x12.jpg 18w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/dc-spd-parallel-connection-solar-pv-system-600x400.jpg 600w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/dc-spd-parallel-connection-solar-pv-system.jpg 1536w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u0423\u0417\u0418\u041f \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430 \u043e\u0431\u044b\u0447\u043d\u043e \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e \u0444\u043e\u0442\u043e\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0446\u0435\u043f\u0438 \u0432 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0438 \u0441 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0435\u0439 \u0423\u0417\u0418\u041f \u0438 \u0441\u0445\u0435\u043c\u043e\u0439 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u041e\u0434\u043d\u0430\u043a\u043e \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u0423\u0417\u0418\u041f \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430 \u0442\u0440\u0435\u0431\u0443\u0435\u0442 \u043e\u0441\u043e\u0431\u043e\u0433\u043e \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u044f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e \u043f\u043e\u043b\u0430\u0433\u0430\u0442\u044c, \u0447\u0442\u043e \u043b\u044e\u0431\u043e\u0439 \u0444\u043e\u0442\u043e\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0423\u0417\u0418\u041f \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u043f\u0440\u043e\u0441\u0442\u043e:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>DC+ \u2192 \u0423\u0417\u0418\u041f \u2192 PE\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u0424\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u044f\u044f \u0441\u0445\u0435\u043c\u0430 \u0437\u0430\u0449\u0438\u0442\u044b \u043c\u043e\u0436\u0435\u0442 \u043e\u0442\u043b\u0438\u0447\u0430\u0442\u044c\u0441\u044f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0412 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u043e\u0442 \u0438\u0437\u0434\u0435\u043b\u0438\u044f \u0438 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438 \u0444\u043e\u0442\u043e\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b, \u0423\u0417\u0418\u041f \u043c\u043e\u0436\u0435\u0442 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0442\u044c \u0440\u0435\u0436\u0438\u043c\u044b \u0437\u0430\u0449\u0438\u0442\u044b \u043c\u0435\u0436\u0434\u0443:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DC+ \u0438 PE<\/li>\n\n\n\n<li>DC- \u0438 PE<\/li>\n\n\n\n<li>DC+ \u0438 DC-<\/li>\n\n\n\n<li>\u041a\u043e\u043c\u0431\u0438\u043d\u0430\u0446\u0438\u044f \u044d\u0442\u0438\u0445 \u043f\u0443\u0442\u0435\u0439<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0414\u043b\u044f \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u0437\u0430\u0437\u0435\u043c\u043b\u0435\u043d\u0438\u044f \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440 \u0444\u043e\u0442\u043e\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442\u0441\u044f \u0440\u0430\u0437\u043d\u044b\u0435 \u0441\u0445\u0435\u043c\u044b \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0423\u0417\u0418\u041f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0414\u043b\u044f \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u0444\u043e\u0442\u043e\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0423\u0417\u0418\u041f \u0442\u043e\u0447\u043d\u043e\u0435 \u0440\u0430\u0441\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u0435 \u043a\u043b\u0435\u043c\u043c \u0437\u0430\u0432\u0438\u0441\u0438\u0442 \u043e\u0442 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430, \u0442\u043e\u043f\u043e\u043b\u043e\u0433\u0438\u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0438 \u0441\u0445\u0435\u043c\u044b \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is why the wiring diagram printed on the SPD or provided in the manufacturer&#8217;s installation instructions is so important.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0414\u043b\u044f \u0444\u043e\u0442\u043e\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043e\u043c \u043d\u0430 \u043f\u0440\u043e\u0434\u0443\u043a\u0446\u0438\u044e \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f IEC 61643-31. \u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f DEHN \u0442\u0430\u043a\u0436\u0435 \u043e\u0442\u043d\u043e\u0441\u0438\u0442 IEC 60364-7-712 \u0438 IEC 60364-5-53 \u043a \u0447\u0438\u0441\u043b\u0443 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0445 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043e\u0432 \u043f\u043e \u043c\u043e\u043d\u0442\u0430\u0436\u0443 \u0434\u043b\u044f \u0444\u043e\u0442\u043e\u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u0438 \u043d\u0438\u0437\u043a\u043e\u0432\u043e\u043b\u044c\u0442\u043d\u044b\u0445 \u0423\u0417\u0418\u041f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u041d\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 \u0441\u0445\u0435\u043c\u0443 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0423\u0417\u0418\u041f \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430 \u0434\u043b\u044f \u0423\u0417\u0418\u041f \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0425\u043e\u0442\u044f \u0423\u0417\u0418\u041f \u0434\u043b\u044f \u0441\u0435\u0442\u0435\u0439 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0433\u043e \u0438 \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430 \u043e\u0441\u043d\u043e\u0432\u0430\u043d\u044b \u043d\u0430 \u0441\u0445\u043e\u0436\u0438\u0445 \u043f\u0440\u0438\u043d\u0446\u0438\u043f\u0430\u0445 \u0437\u0430\u0449\u0438\u0442\u044b \u043e\u0442 \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0439, \u044d\u0442\u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043d\u0435 \u044f\u0432\u043b\u044f\u044e\u0442\u0441\u044f \u0432\u0437\u0430\u0438\u043c\u043e\u0437\u0430\u043c\u0435\u043d\u044f\u0435\u043c\u044b\u043c\u0438.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0421\u0438\u0441\u0442\u0435\u043c\u044b \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430 \u0441\u043e\u0437\u0434\u0430\u044e\u0442 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0441\u043b\u043e\u0436\u043d\u043e\u0441\u0442\u0438, \u043f\u043e\u0441\u043a\u043e\u043b\u044c\u043a\u0443 \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u044b\u0439 \u0442\u043e\u043a \u043d\u0435 \u0438\u043c\u0435\u0435\u0442 \u0435\u0441\u0442\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u0430 \u0447\u0435\u0440\u0435\u0437 \u043d\u043e\u043b\u044c, \u0447\u0442\u043e \u0437\u0430\u0442\u0440\u0443\u0434\u043d\u044f\u0435\u0442 \u0433\u0430\u0448\u0435\u043d\u0438\u0435 \u0434\u0443\u0433\u0438 \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u043e \u044d\u0442\u043e\u0439 \u043f\u0440\u0438\u0447\u0438\u043d\u0435 \u0423\u0417\u0418\u041f \u0434\u043e\u043b\u0436\u043d\u043e \u0431\u044b\u0442\u044c \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043e \u0434\u043b\u044f \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u0433\u043e \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430, \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0438 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0412\u0441\u0435\u0433\u0434\u0430 \u043f\u0440\u043e\u0432\u0435\u0440\u044f\u0439\u0442\u0435:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u041c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0435 \u0434\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u0440\u0430\u0431\u043e\u0447\u0435\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435<\/li>\n\n\n\n<li>\u041f\u043e\u043b\u044f\u0440\u043d\u043e\u0441\u0442\u044c \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430 \u0438 \u043c\u0430\u0440\u043a\u0438\u0440\u043e\u0432\u043a\u0443 \u043a\u043b\u0435\u043c\u043c<\/li>\n\n\n\n<li>\u0422\u0438\u043f \u0423\u0417\u0418\u041f<\/li>\n\n\n\n<li>\u0420\u0435\u0436\u0438\u043c\u044b \u0437\u0430\u0449\u0438\u0442\u044b<\/li>\n\n\n\n<li>\u0421\u0438\u0441\u0442\u0435\u043c\u0430 \u0437\u0430\u0437\u0435\u043c\u043b\u0435\u043d\u0438\u044f<\/li>\n\n\n\n<li>\u0422\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f \u043a \u0442\u043e\u043a\u0443 \u043a\u043e\u0440\u043e\u0442\u043a\u043e\u0433\u043e \u0437\u0430\u043c\u044b\u043a\u0430\u043d\u0438\u044f<\/li>\n\n\n\n<li>\u041c\u043e\u043d\u0442\u0430\u0436\u043d\u0430\u044f \u0441\u0445\u0435\u043c\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u043f\u0435\u0440\u0435\u0434 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u043e\u0439.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u041f\u0440\u0438\u043c\u0435\u0440: \u0427\u0442\u0435\u043d\u0438\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a \u0423\u0417\u0418\u041f \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430 \u0442\u0438\u043f\u0430 2 KUANGYA<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u041d\u0430 \u043f\u0440\u0438\u043c\u0435\u0440\u0435 \u0423\u0417\u0418\u041f \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430 \u0442\u0438\u043f\u0430 2 KUANGYA KYPV\/1000, \u0437\u0430\u0432\u043e\u0434\u0441\u043a\u0430\u044f \u0442\u0430\u0431\u043b\u0438\u0447\u043a\u0430 \u043c\u043e\u0436\u0435\u0442 \u0441\u043e\u0434\u0435\u0440\u0436\u0430\u0442\u044c \u0442\u0430\u043a\u0438\u0435 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u044b, \u043a\u0430\u043a:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Uc = 1000 \u0412 \u043f\u043e\u0441\u0442. \u0442\u043e\u043a\u0430<\/strong><\/li>\n\n\n\n<li><strong>In = 20 \u043a\u0410<\/strong><\/li>\n\n\n\n<li><strong>Imax = 40 \u043a\u0410<\/strong><\/li>\n\n\n\n<li><strong>Up = 3,5 \u043a\u0412<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">These values describe different parts of the SPD&#8217;s electrical performance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Uc<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Uc \u2014 \u044d\u0442\u043e \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0435 \u0434\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u0440\u0430\u0431\u043e\u0447\u0435\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435, \u0443\u043a\u0430\u0437\u0430\u043d\u043d\u043e\u0435 \u0434\u043b\u044f \u0434\u0430\u043d\u043d\u043e\u0433\u043e \u0423\u0417\u0418\u041f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0440\u0438 \u0432\u044b\u0431\u043e\u0440\u0435 \u043f\u043e\u0434\u0445\u043e\u0434\u044f\u0449\u0435\u0433\u043e \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u0443\u0447\u0438\u0442\u044b\u0432\u0430\u0442\u044c \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u043e\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 \u0438 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u0443\u0441\u043b\u043e\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u041d\u0430 \u0441\u0430\u0439\u0442\u0435<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In \u2014 \u044d\u0442\u043e \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0439 \u0440\u0430\u0437\u0440\u044f\u0434\u043d\u044b\u0439 \u0442\u043e\u043a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0414\u043b\u044f \u0423\u0417\u0418\u041f \u0442\u0438\u043f\u0430 2 \u043e\u043d \u0441\u0432\u044f\u0437\u0430\u043d \u0441 \u0444\u043e\u0440\u043c\u043e\u0439 \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u0430 \u0442\u043e\u043a\u0430 8\/20 \u043c\u043a\u0441.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Imax<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Imax \u2014 \u044d\u0442\u043e \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u0440\u0430\u0437\u0440\u044f\u0434\u043d\u044b\u0439 \u0442\u043e\u043a, \u0443\u043a\u0430\u0437\u0430\u043d\u043d\u044b\u0439 \u0434\u043b\u044f \u0423\u0417\u0418\u041f, \u0442\u0430\u043a\u0436\u0435 \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0439 \u0441 \u0444\u043e\u0440\u043c\u043e\u0439 \u0432\u043e\u043b\u043d\u044b 8\/20 \u043c\u043a\u0441 \u0434\u043b\u044f \u0434\u0430\u043d\u043d\u043e\u0433\u043e \u0442\u0438\u043f\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Imax \u0431\u043e\u043b\u044c\u0448\u0435 \u0438\u043b\u0438 \u0440\u0430\u0432\u0435\u043d In.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0412\u0432\u0435\u0440\u0445<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Up \u2014 \u044d\u0442\u043e \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f \u0437\u0430\u0449\u0438\u0442\u044b.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041e\u043d \u0443\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442 \u043d\u0430 \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u044c \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f \u0423\u0417\u0418\u041f \u043f\u0440\u0438 \u0437\u0430\u0434\u0430\u043d\u043d\u044b\u0445 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445 \u0438\u0441\u043f\u044b\u0442\u0430\u043d\u0438\u0439.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The key point for today&#8217;s topic is this:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>20 \u043a\u0410 In \u0438 40 \u043a\u0410 Imax \u043d\u0435 \u043e\u0437\u043d\u0430\u0447\u0430\u044e\u0442, \u0447\u0442\u043e 20 \u043a\u0410 \u0438\u043b\u0438 40 \u043a\u0410 \u043d\u0435\u043f\u0440\u0435\u0440\u044b\u0432\u043d\u043e \u043f\u0440\u043e\u0442\u0435\u043a\u0430\u044e\u0442 \u0447\u0435\u0440\u0435\u0437 \u0423\u0417\u0418\u041f \u0432\u043e \u0432\u0440\u0435\u043c\u044f \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u044b \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430 \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u043d\u044b\u0445 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0432.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That is another reason why comparing an SPD&#8217;s In or Imax directly with the load current of an inverter is incorrect.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Does Parallel Connection Mean Wire Length Does Not Matter?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u041d\u0435\u0442.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In fact, connection length is extremely important for a parallel-connected SPD.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A surge has a very fast current rise.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The connecting conductors therefore have inductance, and the rapidly changing surge current can create an additional voltage drop along those conductors.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That additional voltage is effectively added to the voltage experienced by the protected equipment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0421\u043e\u0433\u043b\u0430\u0441\u043d\u043e <strong><a href=\"https:\/\/www.nemasurge.org\/correct-installation-of-hard-wired-surge-protective-device\/\" rel=\"noopener\">NEMA\u2019s guidance on hard-wired SPD installation<\/a><\/strong>, the size and length of the connecting leads can affect the performance of a parallel-connected SPD, and short, direct connections are preferred.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Phoenix Contact makes the same point: long connecting conductors can increase the effective voltage protection level seen in the installation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So even if two installations use exactly the same SPD, their real-world protection performance may not be identical if one has much longer connection conductors.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-connection-lead-length-protection-1024x768.jpg\" alt=\"Short and long SPD connection leads compared for surge protection\" class=\"wp-image-4480\" srcset=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-connection-lead-length-protection-1024x768.jpg 1024w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-connection-lead-length-protection-300x225.jpg 300w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-connection-lead-length-protection-768x576.jpg 768w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-connection-lead-length-protection-16x12.jpg 16w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-connection-lead-length-protection-600x450.jpg 600w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-connection-lead-length-protection.jpg 1448w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Short and direct SPD connections generally reduce additional inductive voltage during fast surge-current events.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Good Practice<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The SPD connection should generally be:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>As short as practical<\/li>\n\n\n\n<li>As direct as practical<\/li>\n\n\n\n<li>Free from unnecessary loops<\/li>\n\n\n\n<li>Free from unnecessary sharp routing<\/li>\n\n\n\n<li>Installed according to the manufacturer&#8217;s instructions<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">This is also why SPD location matters.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you want to understand this issue in more detail, see our guide:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/cnkuangya.com\/ru\/%d0%b1%d0%bb%d0%be%d0%b3\/spd-distance-from-inverter\/\">\u0418\u043c\u0435\u0435\u0442 \u043b\u0438 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0440\u0430\u0441\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u043c\u0435\u0436\u0434\u0443 \u0423\u0417\u0418\u041f \u0438 \u0438\u043d\u0432\u0435\u0440\u0442\u043e\u0440\u043e\u043c?<\/a><\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Where Should an SPD Be Installed?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The exact position depends on the system being protected.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example, an SPD may be installed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>At a main distribution board<\/li>\n\n\n\n<li>At a sub-distribution board<\/li>\n\n\n\n<li>Near sensitive equipment<\/li>\n\n\n\n<li>At the DC input of a PV inverter<\/li>\n\n\n\n<li>Inside or near a PV combiner box<\/li>\n\n\n\n<li>On the AC side of an inverter<\/li>\n\n\n\n<li>At appropriate lightning protection zone boundaries<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">If your inverter already includes surge protection, do not assume that an additional external SPD is automatically unnecessary. See <strong><a href=\"https:\/\/cnkuangya.com\/ru\/%d0%b1%d0%bb%d0%be%d0%b3\/solar-inverter-built-in-spd\/\">\u0412 \u0441\u043e\u043b\u043d\u0435\u0447\u043d\u044b\u0439 \u0438\u043d\u0432\u0435\u0440\u0442\u043e\u0440 \u0432\u0441\u0442\u0440\u043e\u0435\u043d\u043e \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e \u0437\u0430\u0449\u0438\u0442\u044b \u043e\u0442 \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f (\u0423\u0417\u0418\u041f) \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0442\u043e\u043a\u0430: \u043d\u0443\u0436\u043d\u043e \u043b\u0438 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u0432\u043d\u0435\u0448\u043d\u0435\u0435 \u0423\u0417\u0418\u041f?<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The objective is not simply to put \u201cone SPD somewhere in the system.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The SPD should be positioned as part of a coordinated protection concept.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For PV systems in particular, cable length and the location of the inverter, modules and building entry points can affect whether additional SPDs are appropriate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0421\u043e\u0433\u043b\u0430\u0441\u043d\u043e <strong><a href=\"https:\/\/www.dehn-international.com\/en\/solutions\/photovoltaics\/buildings\" rel=\"noopener\">DEHN\u2019s photovoltaic surge protection guidance<\/a><\/strong>, SPDs should be installed as close as possible to the equipment being protected, such as the inverter, on both the AC and DC sides.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The specific requirements should always be determined from the applicable installation standard, risk assessment and manufacturer instructions.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Does a Parallel-Connected SPD Need a Fuse or Circuit Breaker?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sometimes yes, but not always in exactly the same way.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is another area where oversimplified advice can cause problems.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A parallel SPD may require an external:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u041f\u0440\u0435\u0434\u043e\u0445\u0440\u0430\u043d\u0438\u0442\u0435\u043b\u044c<\/li>\n\n\n\n<li>\u0410\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0432\u044b\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044c<\/li>\n\n\n\n<li>Backup overcurrent protective device<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">depending on the SPD design and installation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Other SPDs may include internal protective or disconnecting components.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The correct arrangement depends on factors such as:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Manufacturer requirements<\/li>\n\n\n\n<li>SPD design<\/li>\n\n\n\n<li>Maximum permitted backup fuse<\/li>\n\n\n\n<li>Available prospective short-circuit current<\/li>\n\n\n\n<li>\u041d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u044b<\/li>\n\n\n\n<li>\u041c\u0435\u0441\u0442\u043e \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438<\/li>\n\n\n\n<li>Applicable electrical standard<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-backup-fuse-circuit-breaker-1024x683.jpg\" alt=\"SPD backup fuse and circuit breaker selection factors\" class=\"wp-image-4481\" srcset=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-backup-fuse-circuit-breaker-1024x683.jpg 1024w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-backup-fuse-circuit-breaker-300x200.jpg 300w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-backup-fuse-circuit-breaker-768x512.jpg 768w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-backup-fuse-circuit-breaker-18x12.jpg 18w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-backup-fuse-circuit-breaker-600x400.jpg 600w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/spd-backup-fuse-circuit-breaker.jpg 1536w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Backup protection requirements depend on the SPD design, system fault current and manufacturer instructions.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">NEMA specifically advises installers to follow the manufacturer&#8217;s requirements regarding fuses, breakers and connection leads.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore, do not assume:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u201cEvery SPD needs exactly the same backup breaker.\u201d<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">And do not assume:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u201cBecause the SPD is connected in parallel, no overcurrent protection is ever required.\u201d<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Both statements can be wrong.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Always check the SPD datasheet and installation instructions.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Why Short SPD Connections Matter So Much<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Imagine two identical SPDs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Installation A<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The SPD is mounted very close to the protected equipment, with short and direct conductors.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Installation B<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The SPD is several meters away and connected through long conductors.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Although the SPD nameplate is identical, the effective protection at the equipment can be different.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This happens because the connecting conductors contribute additional inductive voltage during a fast surge.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">NEMA explains this relationship using:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V = L \u00d7 di\/dt<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">where:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>V<\/strong> = inductive voltage<\/li>\n\n\n\n<li><strong>L<\/strong> = \u0438\u043d\u0434\u0443\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u0432\u043e\u0434\u043d\u0438\u043a\u0430<\/li>\n\n\n\n<li><strong>\u0434\u0438\/\u0434\u0442<\/strong> = rate of change of current<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The faster the current changes and the more inductance there is in the connection, the greater the additional voltage can become.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You do not need to calculate this formula for every normal installation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0432\u044b\u0432\u043e\u0434 \u0433\u043e\u0440\u0430\u0437\u0434\u043e \u043f\u0440\u043e\u0449\u0435:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Keep SPD connections short and direct.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Common SPD Wiring Mistakes<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/common-spd-wiring-mistakes-1024x768.png\" alt=\"Common SPD wiring mistakes in surge protection installations\" class=\"wp-image-4482\" srcset=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/common-spd-wiring-mistakes-1024x768.png 1024w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/common-spd-wiring-mistakes-300x225.png 300w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/common-spd-wiring-mistakes-768x576.png 768w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/common-spd-wiring-mistakes-16x12.png 16w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/common-spd-wiring-mistakes-600x450.png 600w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/09\/common-spd-wiring-mistakes.png 1448w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Common SPD installation mistakes include long connection leads, incorrect voltage selection and ignoring manufacturer wiring requirements.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Understanding why the SPD is connected in parallel also makes several common installation mistakes easier to recognize.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Treating a Standard SPD Like a Series Device<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Do not simply place a normal parallel DIN-rail SPD in the main load path unless the manufacturer&#8217;s design specifically requires that configuration.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Follow the wiring diagram for the exact product.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. Using Excessively Long Connection Wires<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A good SPD with poor wiring may provide worse protection than expected.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Long leads increase inductive voltage during a surge.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Short and direct routing is generally preferred.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3. Ignoring the Protection and Earthing Arrangement<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Do not assume every surge simply flows from one line terminal to earth.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The protection modes depend on the electrical network and SPD design.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Correct PE, bonding and circuit connections are essential where required by the product and installation design.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">4. Choosing the Wrong DC Voltage Rating<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">An SPD must be suitable for the voltage that can continuously appear at its terminals.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is particularly important in PV systems, where string open-circuit voltage changes with temperature.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Choosing an SPD only because it says \u201cDC SPD\u201d is not enough.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The voltage rating must match the actual PV system design.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For a step-by-step method, see our <strong><a href=\"https:\/\/cnkuangya.com\/ru\/%d0%b1%d0%bb%d0%be%d0%b3\/dc-spd-selection-guide\/\">DC SPD voltage selection guide for solar PV systems<\/a><\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">5. Confusing In and Imax With Load Current<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is one of the most common misunderstandings.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An SPD marked:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>In = 20 \u043a\u0410<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">does not mean:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Normal load current = 20 kA<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In and Imax describe surge-current performance under specified impulse conditions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">They are not normal operating-current ratings.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">6. Ignoring the Manufacturer&#8217;s Backup Protection Requirements<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Do not guess the fuse or breaker size.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Different SPD designs can have different backup protection requirements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Some products also include integrated protective components.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Check the actual product documentation.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">7. Installing an SPD but Never Checking It Again<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Many modular SPDs include a visual status indicator.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If the indicator shows a fault or replacement condition, the protection module may need to be replaced.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Some SPDs also have remote signaling contacts for connection to alarms, PLCs or monitoring systems.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Installing the SPD is only the first step.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Its condition should also be checked during maintenance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For common warning signs and replacement indicators, see <strong><a href=\"https:\/\/cnkuangya.com\/ru\/%d0%b1%d0%bb%d0%be%d0%b3\/how-to-know-if-an-spd-is-bad\/\">How to Know If an SPD Is Bad?<\/a><\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Parallel SPD vs. Circuit Breaker: What Is the Difference?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A circuit breaker and an SPD protect against different electrical problems.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0410\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0432\u044b\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A circuit breaker is mainly intended to interrupt abnormal current conditions such as overloads or short circuits.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Because it must sense and interrupt circuit current, it is connected in series with the load.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0421\u041f\u0414<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">An SPD is intended to limit transient overvoltage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A typical power SPD is connected in parallel so that it can conduct surge current when the transient voltage rises.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That means:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Circuit breaker \u2192 current protection<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>SPD \u2192 transient overvoltage protection<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One cannot normally replace the other.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">They perform different jobs.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Parallel SPD vs. Fuse: What Is the Difference?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The same principle applies to a fuse.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A fuse is installed in series with the circuit it protects.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Normal load current passes through the fuse element.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If excessive current persists, the fuse element opens the circuit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A typical SPD behaves differently.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It remains connected across the protected circuit and responds mainly when the voltage reaches a level that causes its protective elements to conduct.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So although fuses, breakers and SPDs may all appear in the same electrical panel, their functions and connection methods are not the same.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u0427\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Is an SPD Connected in Series or Parallel?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Most common Type 1 and Type 2 power SPDs used in distribution boards and similar applications are connected in parallel with the circuit they protect.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, specially designed series-connected SPDs and surge filters also exist.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Always follow the wiring instructions for the exact product.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Why Are Type 1 and Type 2 SPDs Usually Connected in Parallel?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A typical SPD is connected in parallel because it does not need to carry the normal load current.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">During normal voltage conditions, it remains in a high-impedance state.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When a transient overvoltage occurs, it conducts surge current through its protection path and limits the voltage across the protected equipment.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Does Current Normally Flow Through an SPD?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The normal load current does not normally flow through a typical parallel-connected SPD.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, a small leakage or operating current may exist depending on the SPD technology and design.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore, saying \u201cabsolutely no current flows through an SPD\u201d would not be technically precise.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Does an SPD Send All Surge Current to Ground?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u041d\u0435 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u043e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An SPD may operate between line and neutral, line and earth, neutral and earth, line and line, or different DC conductors depending on its protection modes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The exact surge-current path depends on the SPD and electrical system configuration.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Can an SPD Be Connected Directly Across the Supply?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Many power SPDs are designed to be connected in parallel across the appropriate conductors of the supply.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, the exact wiring arrangement depends on the SPD type, system earthing arrangement, required overcurrent protection and manufacturer instructions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Never determine the connection from a generic diagram alone.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Why Isn&#8217;t a Typical SPD Installed in Series With the Load?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A normal parallel SPD is not designed to serve as the continuous main load-current path.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Installing an inline device requires a product specifically designed for that purpose, including suitable current, terminal, fault and thermal ratings.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Are In and Imax the Current of the Solar System?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u041d\u0435\u0442.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In and Imax are surge-discharge current parameters.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">They should not be confused with PV string operating current, short-circuit current or inverter input current.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Is a DC SPD Connected Differently From an AC SPD?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The general surge-protection principle is similar, but DC and AC systems have important differences.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The voltage rating, polarity, protection modes, earthing arrangement and internal SPD design may differ.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For PV systems, always use an SPD intended for the specific DC application and follow its wiring diagram.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Does an SPD Need a Ground Connection?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It depends on the protection mode and system design.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Many power SPDs include protection paths involving PE, but not every surge protection mode is simply conductor-to-earth.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Use the manufacturer&#8217;s circuit diagram and the applicable earthing and bonding requirements.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Does SPD Wire Length Affect Protection?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0414\u0430.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Long SPD connection conductors add inductance and can increase the voltage experienced by the protected equipment during a fast transient.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For this reason, connection conductors should generally be kept as short and direct as practical.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u0432\u044b\u0432\u043e\u0434\u044b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If you only remember a few things from this article, remember these:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Most common Type 1 and Type 2 power SPDs are connected in parallel.<\/strong><\/li>\n\n\n\n<li><strong>A parallel-connected SPD does not normally carry the equipment&#8217;s normal load current.<\/strong><\/li>\n\n\n\n<li><strong>During a surge, the SPD conducts surge current through its designed protection path and limits the transient voltage.<\/strong><\/li>\n\n\n\n<li><strong>In and Imax are surge-discharge current ratings, not normal load-current ratings.<\/strong><\/li>\n\n\n\n<li><strong>Not every surge current path is simply \u201cto ground.\u201d The actual path depends on the SPD protection modes and system configuration.<\/strong><\/li>\n\n\n\n<li><strong>Series-connected surge protection products do exist, so \u201cSPDs can never be connected in series\u201d is technically incorrect.<\/strong><\/li>\n\n\n\n<li><strong>Short and direct SPD connections are important because conductor inductance can increase the effective voltage seen by the protected equipment.<\/strong><\/li>\n\n\n\n<li><strong>For PV DC systems, always follow the SPD wiring diagram, voltage rating, system earthing arrangement and manufacturer requirements.<\/strong><\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">So, why is an SPD connected in parallel instead of series?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For a typical Type 1 or Type 2 <strong>\u0423\u0417\u0418\u041f, \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u043d\u043e\u0435 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e<\/strong>, the normal load current does not pass through the SPD as it would through a series-connected device.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Under normal operating conditions, the SPD remains largely in standby.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When a surge occurs, it conducts through its designed protection path and helps limit the voltage appearing across the protected equipment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That is fundamentally different from a fuse or circuit breaker, which normally carries the circuit current and is therefore installed in series.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, correct SPD installation involves more than simply choosing \u201cparallel.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The SPD voltage rating, protection modes, location, conductor length, earthing and bonding arrangement, backup protection and manufacturer wiring diagram all affect the final protection performance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For solar PV systems in particular, always use an SPD designed for the relevant DC application and verify the actual system voltage and wiring configuration before installation.<\/p>","protected":false},"excerpt":{"rendered":"<p>If you look at a typical surge protective device (SPD) installation, you may notice something different from a fuse or circuit breaker. A fuse or circuit breaker is normally installed in series with the circuit, so the load current passes through it. A typical power SPD is usually connected in parallel with the circuit it [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":4475,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-4474","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/cnkuangya.com\/ru\/wp-json\/wp\/v2\/posts\/4474","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnkuangya.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnkuangya.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ru\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ru\/wp-json\/wp\/v2\/comments?post=4474"}],"version-history":[{"count":2,"href":"https:\/\/cnkuangya.com\/ru\/wp-json\/wp\/v2\/posts\/4474\/revisions"}],"predecessor-version":[{"id":4486,"href":"https:\/\/cnkuangya.com\/ru\/wp-json\/wp\/v2\/posts\/4474\/revisions\/4486"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ru\/wp-json\/wp\/v2\/media\/4475"}],"wp:attachment":[{"href":"https:\/\/cnkuangya.com\/ru\/wp-json\/wp\/v2\/media?parent=4474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnkuangya.com\/ru\/wp-json\/wp\/v2\/categories?post=4474"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnkuangya.com\/ru\/wp-json\/wp\/v2\/tags?post=4474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}