{"id":2528,"date":"2026-02-22T01:53:09","date_gmt":"2026-02-22T01:53:09","guid":{"rendered":"https:\/\/cnkuangya.com\/?p=2528"},"modified":"2026-04-24T13:39:26","modified_gmt":"2026-04-24T05:39:26","slug":"dc-surge-protection-device-technical-guide","status":"publish","type":"post","link":"https:\/\/cnkuangya.com\/ja\/blog\/dc-surge-protection-device-technical-guide\/","title":{"rendered":"\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e\u30c6\u30af\u30cb\u30ab\u30eb\u30ac\u30a4\u30c9"},"content":{"rendered":"<p>\u73fe\u4ee3\u306e\u96fb\u6c17\u30a4\u30f3\u30d5\u30e9\u3067\u306f\u3001\u592a\u967d\u5149\u767a\u96fb\u8a2d\u5099\u3084\u84c4\u96fb\u6c60\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u96fb\u6c17\u901a\u4fe1\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3084\u96fb\u6c17\u81ea\u52d5\u8eca\u5145\u96fb\u30b9\u30c6\u30fc\u30b7\u30e7\u30f3\u306b\u81f3\u308b\u307e\u3067\u3001\u76f4\u6d41\uff08DC\uff09\u30b7\u30b9\u30c6\u30e0\u304c\u307e\u3059\u307e\u3059\u666e\u53ca\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3053\u308c\u3089\u306e\u76f4\u6d41\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u843d\u96f7\u3001\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u64cd\u4f5c\u3001\u7cfb\u7d71\u969c\u5bb3\u306b\u3088\u3063\u3066\u5f15\u304d\u8d77\u3053\u3055\u308c\u308b\u904e\u6e21\u96fb\u5727\u30b5\u30fc\u30b8\u3068\u3044\u3046\u91cd\u5927\u306a\u8106\u5f31\u6027\u306b\u76f4\u9762\u3057\u3066\u3044\u307e\u3059\u3002\u4fdd\u8b77\u3055\u308c\u3066\u3044\u306a\u3044\u30b5\u30fc\u30b8\u304c\u4e00\u5ea6\u3067\u3082\u767a\u751f\u3059\u308b\u3068\u3001\u7e4a\u7d30\u306a\u96fb\u5b50\u6a5f\u5668\u304c\u7834\u58ca\u3055\u308c\u3001\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3\u304c\u505c\u6b62\u3057\u3001\u30b3\u30b9\u30c8\u306e\u304b\u304b\u308b\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3053\u3067DC\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e(<a href=\"https:\/\/cnkuangya.com\/ja\/%e7%9b%b4%e6%b5%81%e5%9b%9e%e8%bb%a2%e6%95%b0\/\">DC SPD<\/a>)\u306f\u3001\u96fb\u6c17\u30a4\u30f3\u30d5\u30e9\u306b\u3068\u3063\u3066\u4e0d\u53ef\u6b20\u306a\u5b89\u5168\u88c5\u7f6e\u3068\u306a\u308b\u3002.<\/p>\n\n\n\n<p>This comprehensive guide explores everything you need to know about DC surge protection devices\u2014from their fundamental working principles and various types to real-world applications and selection criteria. Whether you&#8217;re designing a solar installation, specifying equipment for a data center, or upgrading industrial control systems, understanding DC SPDs will help you make informed decisions that protect your investment and ensure system reliability.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3068\u306f\u4f55\u304b\uff1f <a href=\"https:\/\/cnkuangya.com\/ja\/%e7%9b%b4%e6%b5%81%e5%9b%9e%e8%bb%a2%e6%95%b0\/\">\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e<\/a>?<\/h2>\n\n\n\n<p>\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e\uff08DC SPD\uff09\u306f\u3001\u76f4\u6d41\u96fb\u6c17\u7cfb\u7d71\u306e\u904e\u6e21\u904e\u96fb\u5727\u3092\u5236\u9650\u3057\u3001\u30b5\u30fc\u30b8\u96fb\u6d41\u3092\u8ee2\u63db\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u305f\u4fdd\u8b77\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3059\u3002AC \u3068\u7570\u306a\u308a\u3001DC SPD \u306f\u3001\u81ea\u7136\u96fb\u6d41\u306e\u30bc\u30ed\u4ea4\u5dee\u304c\u306a\u3044\u3053\u3068\u3084\u3001\u6301\u7d9a\u7684\u306a\u6545\u969c\u96fb\u6d41\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u306a\u3069\u3001DC \u56de\u8def\u7279\u6709\u306e\u7279\u6027\u306b\u5bfe\u5fdc\u3059\u308b\u3088\u3046\u7279\u5225\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p>DC SPD \u306e\u4e3b\u306a\u6a5f\u80fd\u306f\u3001\u5b89\u5168\u306a\u52d5\u4f5c\u30ec\u30d9\u30eb\u3092\u8d85\u3048\u308b\u96fb\u5727\u30b5\u30fc\u30b8\u3092\u691c\u51fa\u3057\u3001\u63a5\u5730\u3078\u306e\u4f4e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u7d4c\u8def\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3067\u3001\u904e\u5270\u306a\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u654f\u611f\u306a\u6a5f\u5668\u304b\u3089\u52b9\u679c\u7684\u306b\u30b7\u30e3\u30f3\u30c8\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u30de\u30a4\u30af\u30ed\u79d2\u5358\u4f4d\u3067\u52d5\u4f5c\u3057\u3001\u5f93\u6765\u306e\u56de\u8def\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u3088\u308a\u3082\u9ad8\u901f\u306b\u5fdc\u7b54\u3059\u308b\u305f\u3081\u3001\u63a5\u7d9a\u3055\u308c\u305f\u8ca0\u8377\u3078\u306e\u640d\u50b7\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u5074\u9762\u306b\u304a\u3044\u3066\u4ea4\u6d41\u30b5\u30fc\u30b8\u30d7\u30ed\u30c6\u30af\u30bf\u3068\u306f\u6839\u672c\u7684\u306b\u7570\u306a\u308a\u307e\u3059\u3002\u76f4\u6d41\u30b7\u30b9\u30c6\u30e0\u306b\u306f\u3001\u4ea4\u6d41\u30b7\u30b9\u30c6\u30e0\u3067\u767a\u751f\u3059\u308b\u5468\u671f\u7684\u306a\u96fb\u5727\u30bc\u30ed\u30af\u30ed\u30b9\u304c\u306a\u3044\u305f\u3081\u3001\u4fdd\u8b77\u7d20\u5b50\u304c\u76f4\u6d41\u56de\u8def\u3067\u5c0e\u901a\u3059\u308b\u3068\u3001\u81ea\u7136\u306a\u96fb\u6d41\u30bc\u30ed\u3092\u5f85\u3064\u306e\u3067\u306f\u306a\u304f\u3001\u5f8c\u7d9a\u96fb\u6d41\u3092\u7a4d\u6975\u7684\u306b\u906e\u65ad\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u8981\u4ef6\u306f\u3001\u76f4\u6d41\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u7279\u6709\u306e\u7279\u6b8a\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u8a2d\u8a08\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u8981\u6c42\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"266\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/d99df32fb440fa476637e43c0bd1b7297a08317ffd7402d63b776f446614f1d9-1024x266.jpg\" alt=\"\" class=\"wp-image-2531\" srcset=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/d99df32fb440fa476637e43c0bd1b7297a08317ffd7402d63b776f446614f1d9-1024x266.jpg 1024w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/d99df32fb440fa476637e43c0bd1b7297a08317ffd7402d63b776f446614f1d9-300x78.jpg 300w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/d99df32fb440fa476637e43c0bd1b7297a08317ffd7402d63b776f446614f1d9-768x200.jpg 768w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/d99df32fb440fa476637e43c0bd1b7297a08317ffd7402d63b776f446614f1d9-1536x399.jpg 1536w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/d99df32fb440fa476637e43c0bd1b7297a08317ffd7402d63b776f446614f1d9-2048x532.jpg 2048w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/d99df32fb440fa476637e43c0bd1b7297a08317ffd7402d63b776f446614f1d9-18x5.jpg 18w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/d99df32fb440fa476637e43c0bd1b7297a08317ffd7402d63b776f446614f1d9-600x156.jpg 600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e3b\u8981\u6280\u8853\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30d1\u30e9\u30e1\u30fc\u30bf<\/th><th>\u5178\u578b\u7684\u306a\u7bc4\u56f2<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u6700\u5927\u9023\u7d9a\u52d5\u4f5c\u96fb\u5727\uff08MCOV\uff09<\/td><td>48V &#8211; 1500V DC<\/td><td>SPD\u304c\u9023\u7d9a\u7684\u306b\u8010\u3048\u3089\u308c\u308b\u6700\u9ad8\u96fb\u5727<\/td><\/tr><tr><td>\u96fb\u5727\u4fdd\u8b77\u30ec\u30d9\u30eb\uff08\u4e0a\uff09<\/td><td>1.2 &#8211; 4.0 kV<\/td><td>\u30b5\u30fc\u30b8\u767a\u751f\u6642\u306e\u6700\u5927\u8a31\u5bb9\u96fb\u5727<\/td><\/tr><tr><td>\u516c\u79f0\u653e\u96fb\u96fb\u6d41 (In)<\/td><td>5 &#8211; 40 kA (8\/20 \u00b5s)<\/td><td>\u30af\u30e9\u30b9\u5206\u3051\u306e\u305f\u3081\u306e\u6a19\u6e96\u8a66\u9a13\u96fb\u6d41<\/td><\/tr><tr><td>\u6700\u5927\u653e\u96fb\u96fb\u6d41 (Imax)<\/td><td>20 &#8211; 100 kA (8\/20 \u00b5s)<\/td><td>\u30c7\u30d0\u30a4\u30b9\u304c\u51e6\u7406\u3067\u304d\u308b\u30b5\u30fc\u30b8\u96fb\u6d41\u306e\u30d4\u30fc\u30af\u5024<\/td><\/tr><tr><td>\u5fdc\u7b54\u6642\u9593<\/td><td>&lt; 25 ns<\/td><td>\u30d7\u30ed\u30c6\u30af\u30b7\u30e7\u30f3\u306e\u4f5c\u52d5\u6642\u9593<\/td><\/tr><tr><td>\u52d5\u4f5c\u6e29\u5ea6<\/td><td>-40\u00b0C \uff5e +85\u00b0C<\/td><td>\u74b0\u5883\u52d5\u4f5c\u7bc4\u56f2<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e\u6a5f\u80fd<\/h2>\n\n\n\n<p>\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u306e\u57fa\u672c\u7684\u306a\u6a5f\u80fd\u306f\u3001\u904e\u6e21\u904e\u96fb\u5727\u306e\u691c\u51fa\u3001\u8ee2\u63db\u3001\u304a\u3088\u3073\u6d88\u6563\u306e3\u3064\u3067\u3059\u3002\u8fd1\u304f\u306e\u843d\u96f7\u3001\u8a98\u5c0e\u8ca0\u8377\u306e\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u3001\u307e\u305f\u306f\u9759\u96fb\u6c17\u653e\u96fb\u306a\u3069\u3001\u30b5\u30fc\u30b8\u4e8b\u8c61\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3001SPD \u306f\u5373\u5ea7\u306b\u8105\u5a01\u3092\u8a8d\u8b58\u3057\u3001\u63a5\u5730\u3078\u306e\u4f4e\u62b5\u6297\u7d4c\u8def\u3092\u4f5c\u308a\u3001\u63a5\u7d9a\u3055\u308c\u305f\u6a5f\u5668\u306b\u640d\u50b7\u3092\u4f1d\u64ad\u3055\u305b\u308b\u3053\u3068\u306a\u304f\u30b5\u30fc\u30b8\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u5b89\u5168\u306b\u6d88\u6563\u3055\u305b\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p>\u306a\u305c\u3053\u306e\u3088\u3046\u306a\u4fdd\u8b77\u304c\u5fc5\u8981\u306a\u306e\u3067\u3057\u3087\u3046\u304b\uff1fDC\u30b7\u30b9\u30c6\u30e0\u3001\u7279\u306b\u518d\u751f\u53ef\u80fd\u30a8\u30cd\u30eb\u30ae\u30fc\u6e90\u3001\u30d0\u30c3\u30c6\u30ea\u30fc\u30d0\u30f3\u30af\u3001\u96fb\u5b50\u5236\u5fa1\u30b7\u30b9\u30c6\u30e0\u3092\u542b\u3080\u30b7\u30b9\u30c6\u30e0\u306b\u306f\u3001\u72ed\u3044\u96fb\u5727\u8a31\u5bb9\u7bc4\u56f2\u5185\u3067\u52d5\u4f5c\u3059\u308b\u7e4a\u7d30\u306a\u534a\u5c0e\u4f53\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u5b9a\u683c\u30ec\u30d9\u30eb\u3092\u308f\u305a\u304b20\uff5e30%\u4e0a\u56de\u308b\u96fb\u5727\u30b9\u30d1\u30a4\u30af\u306f\u3001\u30d1\u30ef\u30fc\u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9\u3001\u30de\u30a4\u30af\u30ed\u30d7\u30ed\u30bb\u30c3\u30b5\u3001\u901a\u4fe1\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u5373\u6642\u6545\u969c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u592a\u967d\u5149\u767a\u96fb\u8a2d\u5099\u3067\u306f\u3001\u8907\u96d1\u306aIGBT\u30d9\u30fc\u30b9\u306e\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u56de\u8def\u3092\u542b\u3080\u30a4\u30f3\u30d0\u30fc\u30bf\u306f\u3001\u30b5\u30fc\u30b8\u306b\u3088\u308b\u6545\u969c\u306b\u7279\u306b\u8106\u5f31\u3067\u3001\u4fee\u7406\u306b\u6570\u5343\u30c9\u30eb\u306e\u8cbb\u7528\u304c\u304b\u304b\u308a\u3001\u30a8\u30cd\u30eb\u30ae\u30fc\u751f\u7523\u306b\u5927\u304d\u306a\u640d\u5931\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>DC SPD 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class=\"wp-block-heading\">\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e\u3068\u4ea4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e\u306e\u6bd4\u8f03<\/h2>\n\n\n\n<p>DC\u304a\u3088\u3073AC\u30b5\u30fc\u30b8\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u306f\u3044\u305a\u308c\u3082\u3001\u96fb\u6c17\u30b7\u30b9\u30c6\u30e0\u3092\u904e\u6e21\u904e\u96fb\u5727\u304b\u3089\u4fdd\u8b77\u3059\u308b\u3068\u3044\u3046\u57fa\u672c\u7684\u306a\u76ee\u7684\u3092\u679c\u305f\u3057\u307e\u3059\u304c\u3001\u4fdd\u8b77\u3059\u308b\u96fb\u529b\u30b7\u30b9\u30c6\u30e0\u306e\u56fa\u6709\u306e\u7279\u6027\u306b\u3088\u308a\u3001\u305d\u306e\u8a2d\u8a08\u3001\u52d5\u4f5c\u3001\u304a\u3088\u3073\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u5927\u304d\u304f\u7570\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u6700\u3082\u91cd\u8981\u306a\u9055\u3044\u306f\u3001\u96fb\u6d41\u906e\u65ad\u80fd\u529b\u306b\u3042\u308b\u3002AC\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u30bc\u30ed\u96fb\u5727\u3068\u30bc\u30ed\u96fb\u6d41\u30921\u30b5\u30a4\u30af\u30eb\u306b2\u56de\uff0850\/60 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\u52d5\u4f5c\u539f\u7406<\/h2>\n\n\n\n<p>\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u304c\u3069\u306e\u3088\u3046\u306b\u52d5\u4f5c\u3059\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u306b\u306f\u3001\u95a2\u4fc2\u3059\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u30b5\u30fc\u30b8\u72b6\u614b\u4e2d\u306e\u30a4\u30d9\u30f3\u30c8\u306e\u30b7\u30fc\u30b1\u30f3\u30b9\u306e\u4e21\u65b9\u3092\u8abf\u3079\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u52d5\u4f5c\u539f\u7406\u306f\u3001\u30de\u30a4\u30af\u30ed\u79d2\u4ee5\u5185\u306b\u767a\u751f\u3059\u308b\u660e\u78ba\u306a\u30d5\u30a7\u30fc\u30ba\u306b\u5206\u89e3\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u30b9\u30c6\u30c3\u30d71\uff1a\u901a\u5e38\u904b\u8ee2\u72b6\u614b<\/strong><\/p>\n\n\n\n<p>\u901a\u5e38\u306e\u52d5\u4f5c\u6761\u4ef6\u4e0b\u3067\u306f\u3001DC SPD\u306f\u4fdd\u8b77\u56de\u8def\u3068\u30b0\u30e9\u30f3\u30c9\u9593\u306b\u6975\u3081\u3066\u9ad8\u3044\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\uff08\u901a\u5e381 M\u03a9\u4ee5\u4e0a\uff09\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u306e\u9ad8\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u72b6\u614b\u306b\u3088\u308a\u3001SPD\u306f\u901a\u5e38\u306e\u30b7\u30b9\u30c6\u30e0\u52d5\u4f5c\u3092\u59a8\u3052\u305a\u3001\u30ea\u30fc\u30af\u96fb\u6d41\u306f\u3054\u304f\u308f\u305a\u304b\uff08\u901a\u5e381mA\u672a\u6e80\uff09\u3067\u3001\u30b7\u30b9\u30c6\u30e0\u52b9\u7387\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u305b\u3093\u3002SPD\u306f\u7aef\u5b50\u9593\u306e\u96fb\u5727\u3092\u7d99\u7d9a\u7684\u306b\u76e3\u8996\u3057\u3001\u904e\u96fb\u5727\u72b6\u614b\u306b\u5373\u5ea7\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u30b9\u30c6\u30c3\u30d72\uff1a\u30b5\u30fc\u30b8\u691c\u77e5\u3068\u8d77\u52d5<\/strong><\/p>\n\n\n\n<p>When a transient overvoltage occurs\u2014exceeding the SPD&#8217;s voltage protection level\u2014the protective elements within the device undergo a rapid transition from high-impedance to low-impedance state. This transition occurs in nanoseconds, typically within 25 ns for modern metal oxide varistor (MOV) based devices. The speed of this response is critical because surge events have extremely fast rise times, often reaching peak values in less than 1 microsecond.<\/p>\n\n\n\n<p><strong>\u30b9\u30c6\u30c3\u30d73\uff1a\u30b5\u30fc\u30b8\u96fb\u6d41\u306e\u5206\u6d41<\/strong><\/p>\n\n\n\n<p>SPD\u304c\u4f5c\u52d5\u3059\u308b\u3068\u3001\u63a5\u5730\u3078\u306e\u4f4e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u7d4c\u8def\uff08\u901a\u5e380.1\uff5e1\u03a9\uff09\u304c\u5f62\u6210\u3055\u308c\u3001\u30b5\u30fc\u30b8\u96fb\u6d41\u306e\u77ed\u7d61\u56de\u8def\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b5\u30fc\u30b8\u30a8\u30cd\u30eb\u30ae\u30fc\u306e\u5927\u90e8\u5206\u304c\u4fdd\u8b77\u5bfe\u8c61\u6a5f\u5668\u304b\u3089\u9060\u3056\u304b\u308a\u307e\u3059\u3002SPD \u306f\u3001\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u904e\u6e21\u73fe\u8c61\u306e\u6570 kA \u304b\u3089\u3001\u30bf\u30a4\u30d7 1 \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u76f4\u63a5\u843d\u96f7\u306e 100 kA \u3092\u8d85\u3048\u308b\u30b5\u30fc\u30b8\u96fb\u6d41\u307e\u3067\u3001\u30b5\u30fc\u30b8\u96fb\u6d41\u306e\u5927\u304d\u3055\u306b\u5bfe\u5fdc\u3067\u304d\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p><strong>\u30b9\u30c6\u30c3\u30d74\uff1a\u30a8\u30cd\u30eb\u30ae\u30fc\u6563\u9038<\/strong><\/p>\n\n\n\n<p>As surge current flows through the SPD, the energy is dissipated primarily as heat within the protective elements. High-quality DC SPDs incorporate thermal management features including heat sinks, thermal coupling to mounting rails, and temperature-monitoring circuits. The energy dissipation capability is characterized by the device&#8217;s energy rating, typically expressed in kilojoules (kJ), which must exceed the expected surge energy in the application.<\/p>\n\n\n\n<p><strong>\u30b9\u30c6\u30c3\u30d75\uff1a\u96fb\u5727\u30af\u30e9\u30f3\u30d4\u30f3\u30b0<\/strong><\/p>\n\n\n\n<p>\u30b5\u30fc\u30b8\u767a\u751f\u4e2d\u3001SPD \u306f\u7aef\u5b50\u9593\u306e\u30af\u30e9\u30f3\u30d7\u96fb\u5727\uff08\u96fb\u5727\u4fdd\u8b77\u30ec\u30d9\u30eb\uff08Up\uff09\uff09\u3092\u7dad\u6301\u3057\u307e\u3059\u3002\u3053\u306e\u30af\u30e9\u30f3\u30d7\u96fb\u5727\u306f\u3001\u4fdd\u8b77\u5bfe\u8c61\u6a5f\u5668\u304c\u7d4c\u9a13\u3059\u308b\u6700\u5927\u96fb\u5727\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u306e\u5024\u306f\u4f4e\u3051\u308c\u3070\u4f4e\u3044\u307b\u3069\u4fdd\u8b77\u52b9\u679c\u306f\u9ad8\u304f\u306a\u308a\u307e\u3059\u304c\u3001\u8ff7\u60d1\u306a\u8d77\u52d5\u3092\u9632\u3050\u305f\u3081\u306b\u306f\u901a\u5e38\u306e\u52d5\u4f5c\u96fb\u5727\u3088\u308a\u3082\u5341\u5206\u306b\u9ad8\u304f\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u30021000V\u306eDC\u30b7\u30b9\u30c6\u30e0\u306e\u5834\u5408\u3001\u5178\u578b\u7684\u306aUp\u306f1800\uff5e2200V\u3068\u306a\u308a\u3001\u9078\u629e\u6027\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u5341\u5206\u306a\u4fdd\u8b77\u30de\u30fc\u30b8\u30f3\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u30b9\u30c6\u30c3\u30d76\uff1a\u96fb\u6d41\u306e\u906e\u65ad\u3068\u30ea\u30bb\u30c3\u30c8<\/strong><\/p>\n\n\n\n<p>\u3053\u306e\u6bb5\u968e\u306f\u3001\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u306e\u6700\u3082\u96e3\u3057\u3044\u5074\u9762\u3067\u3059\u3002\u30b5\u30fc\u30b8\u96fb\u6d41\u304c\u53ce\u307e\u3063\u305f\u5f8c\u3001\u5f8c\u7d9a\u96fb\u6d41\u304c\u76f4\u6d41\u96fb\u6e90\u304b\u3089\u73fe\u5728\u5c0e\u901a\u3057\u3066\u3044\u308bSPD\u3092\u901a\u3057\u3066\u6d41\u308c\u7d9a\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u96fb\u6d41\u304c\u81ea\u7136\u306b\u30bc\u30ed\u3092\u8d85\u3048\u308b AC \u30b7\u30b9\u30c6\u30e0\u3068\u306f\u7570\u306a\u308a\u3001DC SPD \u306f\u3053\u306e\u5f8c\u7d9a\u96fb\u6d41\u3092\u7a4d\u6975\u7684\u306b\u906e\u65ad\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3055\u307e\u3056\u307e\u306a\u6280\u8853\u304c\u3001\u3055\u307e\u3056\u307e\u306a\u30e1\u30ab\u30cb\u30ba\u30e0\u3067\u3053\u308c\u3092\u5b9f\u73fe\u3057\u3066\u3044\u308b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30b5\u30fc\u30de\u30eb\u30fb\u30c7\u30a3\u30b9\u30b3\u30cd\u30af\u30bf\u30fc<\/strong>:\u611f\u6e29\u7d20\u5b50\uff1a\u904e\u5ea6\u306e\u71b1\u3092\u691c\u77e5\u3059\u308b\u3068\u56de\u8def\u3092\u7269\u7406\u7684\u306b\u5206\u96e2\u3059\u308b\u7d20\u5b50<\/li>\n\n\n\n<li><strong>\u76f4\u5217\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9<\/strong>:\u8ffd\u5f93\u96fb\u6d41\u3092\u5b89\u5168\u306a\u30ec\u30d9\u30eb\u306b\u5236\u9650\u3059\u308b\u62b5\u6297\u307e\u305f\u306f\u8a98\u5c0e\u7d20\u5b50<\/li>\n\n\n\n<li><strong>\u30a2\u30af\u30c6\u30a3\u30d6\u56de\u8def<\/strong>:\u30b5\u30fc\u30b8\u5b8c\u4e86\u3092\u691c\u77e5\u3057\u3001\u7a4d\u6975\u7684\u306b\u56de\u8def\u3092\u958b\u304f\u96fb\u5b50\u30b9\u30a4\u30c3\u30c1<\/li>\n\n\n\n<li><strong>\u30a2\u30fc\u30af\u6d88\u5f27\u30c1\u30e3\u30f3\u30d0\u30fc<\/strong>:\u96fb\u6d41\u3092\u5f37\u5236\u7684\u306b\u906e\u65ad\u3059\u308b\u305f\u3081\u306b\u30a2\u30fc\u30af\u3092\u4f38\u9577\u30fb\u51b7\u5374\u3059\u308b\u7279\u6b8a\u8a2d\u8a08<\/li>\n<\/ul>\n\n\n\n<p><strong>\u30b9\u30c6\u30c3\u30d77\uff1a\u901a\u5e38\u72b6\u614b\u306b\u623b\u308b<\/strong><\/p>\n\n\n\n<p>\u5f8c\u7d9a\u96fb\u6d41\u306e\u906e\u65ad\u306b\u6210\u529f\u3059\u308b\u3068\u3001SPD\u306f\u9ad8\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u76e3\u8996\u72b6\u614b\u306b\u623b\u308a\u3001\u5f8c\u7d9a\u306e\u30b5\u30fc\u30b8\u4e8b\u8c61\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u9ad8\u54c1\u8cea\u306eDC SPD\u306f\u3001\u305d\u306e\u5bff\u547d\u3092\u901a\u3058\u3066\u8907\u6570\u306e\u30b5\u30fc\u30b8\u4e8b\u8c61\u306b\u5bfe\u5fdc\u3067\u304d\u3001\u9069\u5207\u306a\u8a2d\u8a08\u3067\u3042\u308c\u3070\u3001\u4ea4\u63db\u304c\u5fc5\u8981\u306b\u306a\u308b\u307e\u3067\u306b\u6570\u5343\u56de\u306e\u52d5\u4f5c\u304c\u53ef\u80fd\u3067\u3059\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/030af33a71c602201204129adfc934f8c5c99b308d739d0610c92615dd220251-1024x572.jpg\" alt=\"\" class=\"wp-image-2530\" srcset=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/030af33a71c602201204129adfc934f8c5c99b308d739d0610c92615dd220251-1024x572.jpg 1024w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/030af33a71c602201204129adfc934f8c5c99b308d739d0610c92615dd220251-300x167.jpg 300w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/030af33a71c602201204129adfc934f8c5c99b308d739d0610c92615dd220251-768x429.jpg 768w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/030af33a71c602201204129adfc934f8c5c99b308d739d0610c92615dd220251-1536x857.jpg 1536w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/030af33a71c602201204129adfc934f8c5c99b308d739d0610c92615dd220251-2048x1143.jpg 2048w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/030af33a71c602201204129adfc934f8c5c99b308d739d0610c92615dd220251-18x10.jpg 18w, https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/02\/030af33a71c602201204129adfc934f8c5c99b308d739d0610c92615dd220251-600x335.jpg 600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e\u306e\u7a2e\u985e<\/h2>\n\n\n\n<p>\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u4fdd\u8b77\u6280\u8853\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5834\u6240\u3001\u304a\u3088\u3073\u6027\u80fd\u7279\u6027\u306b\u57fa\u3065\u3044\u3066\u3044\u304f\u3064\u304b\u306e\u30ab\u30c6\u30b4\u30ea\u306b\u5206\u985e\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30bf\u30a4\u30d7\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u7279\u5b9a\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9069\u5207\u306a\u4fdd\u8b77\u3092\u9078\u629e\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30bf\u30a4\u30d71\uff1a\u30b9\u30d1\u30fc\u30af\u30ae\u30e3\u30c3\u30d7\u30d9\u30fc\u30b9\u306eDC 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class=\"wp-block-heading\">\u901a\u4fe1\u30a4\u30f3\u30d5\u30e9<\/h3>\n\n\n\n<p>\u96fb\u6c17\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u306f\u76f4\u6d41\u914d\u96fb\u3092\u5e83\u7bc4\u56f2\u306b\u5229\u7528\u3057\u3001\u6a5f\u5668\u30e9\u30c3\u30af\u3067\u306f\u4e00\u822c\u7684\u306b\u76f4\u6d4148V\u3001\u4e2d\u592e\u30aa\u30d5\u30a3\u30b9\u3067\u306f\u76f4\u6d41-48V\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u304c\u30b5\u30fc\u30d3\u30b9\u306e\u53ef\u7528\u6027\u3068\u53ce\u76ca\u306b\u76f4\u63a5\u5f71\u97ff\u3059\u308b\u305f\u3081\u3001\u6975\u3081\u3066\u9ad8\u3044\u4fe1\u983c\u6027\u304c\u8981\u6c42\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<p>DC SPD\u306f\u3001\u7121\u7dda\u57fa\u5730\u5c40\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u4f1d\u9001\u88c5\u7f6e\u3001\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30d0\u30c3\u30c6\u30ea\u30fc\u30d7\u30e9\u30f3\u30c8\u3078\u306e\u914d\u96fb\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002\u4fdd\u8b77\u6226\u7565\u306f\u3001\u96fb\u529b\u7dda\u30b5\u30fc\u30b8\u3068\u3001\u30b1\u30fc\u30d6\u30eb\u30fb\u30b7\u30fc\u30eb\u30c9\u304a\u3088\u3073\u63a5\u5730\u30b7\u30b9\u30c6\u30e0\u3092\u4ecb\u3057\u3066\u7d50\u5408\u3055\u308c\u308b\u30b5\u30fc\u30b8\u306e\u4e21\u65b9\u306b\u5bfe\u51e6\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30bf\u30ef\u30fc\u30de\u30a6\u30f3\u30c8\u6a5f\u5668\u3067\u306f\u3001\u96f7\u4fdd\u8b77\u304c\u6700\u3082\u91cd\u8981\u3067\u3042\u308a\u3001\u914d\u96fb\u7d4c\u8def\u306b\u6cbf\u3063\u305f\u8907\u6570\u306e\u30dd\u30a4\u30f3\u30c8\u306bSPD\u3092\u5354\u8abf\u3057\u3066\u8a2d\u7f6e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u6280\u8853\u7684\u306a\u8981\u4ef6\u3068\u3057\u3066\u306f\u3001\u7e4a\u7d30\u306a\u96fb\u5b50\u6a5f\u5668\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306e\u4f4e\u96fb\u5727\u4fdd\u8b77\u30ec\u30d9\u30eb\uff08\u901a\u5e38\u300148V\u30b7\u30b9\u30c6\u30e0\u3067\u306f100V\u672a\u6e80\uff09\u3001\u9577\u3044\u30b1\u30fc\u30d6\u30eb\u914d\u7dda\u306b\u304a\u3051\u308b\u96fb\u5727\u964d\u4e0b\u306e\u554f\u984c\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306e\u6700\u5c0f\u9650\u306e\u633f\u5165\u640d\u5931\u3001\u30ea\u30e2\u30fc\u30c8\u30fb\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306e\u305f\u3081\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u3068\u306e\u4e92\u63db\u6027\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002\u96fb\u6c17\u901a\u4fe1SPD\u306f\u53b3\u3057\u3044\u4fe1\u983c\u6027\u57fa\u6e96\u3092\u6e80\u305f\u3059\u5fc5\u8981\u304c\u3042\u308a\u3001\u30ad\u30e3\u30ea\u30a2\u30b0\u30ec\u30fc\u30c9\u306e\u8a2d\u7f6e\u306b\u306fNEBS\uff08Network Equipment Building System\uff09\u8a8d\u8a3c\u304c\u5fc5\u8981\u306b\u306a\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7523\u696d\u30aa\u30fc\u30c8\u30e1\u30fc\u30b7\u30e7\u30f3\u3068\u5236\u5fa1\u30b7\u30b9\u30c6\u30e0<\/h3>\n\n\n\n<p>\u7523\u696d\u65bd\u8a2d\u3067\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30de\u30d6\u30eb\u30fb\u30ed\u30b8\u30c3\u30af\u30fb\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\uff08PLC\uff09\u3001\u5206\u6563\u578b\u5236\u5fa1\u30b7\u30b9\u30c6\u30e0\uff08DCS\uff09\u3001\u53ef\u5909\u5468\u6ce2\u6570\u30c9\u30e9\u30a4\u30d6\uff08VFD\uff09\u3001\u30bb\u30f3\u30b5\u30fc\u30fb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7528\u306b\u76f4\u6d41\u914d\u96fb\u3092\u63a1\u7528\u3059\u308b\u30b1\u30fc\u30b9\u304c\u5897\u3048\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u30e2\u30fc\u30bf\u306e\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u3001\u6eb6\u63a5\u6a5f\u5668\u3001\u8a2d\u5099\u30a4\u30f3\u30d5\u30e9\u3078\u306e\u843d\u96f7\u306b\u3088\u3063\u3066\u767a\u751f\u3059\u308b\u30b5\u30fc\u30b8\u306b\u5bfe\u3057\u3066\u8106\u5f31\u3067\u3059\u3002.<\/p>\n\n\n\n<p>DC SPD\u306f\u3001\u5236\u5fa1\u96fb\u6e90\uff08\u901a\u5e38\u306fDC24V\uff09\u3001I\/O\u30e2\u30b8\u30e5\u30fc\u30eb\u3001\u901a\u4fe1\u30d0\u30b9\uff08Profibus\u3001Modbus\u3001DeviceNet\uff09\u3001\u304a\u3088\u3073\u30e2\u30fc\u30bf\u30c9\u30e9\u30a4\u30d6DC\u30d0\u30b9\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002\u4fdd\u8b77\u306f\u3001\u9069\u5207\u306a\u9078\u629e\u6027\u3092\u78ba\u4fdd\u3057\u3001\u901a\u5e38\u306e\u7523\u696d\u904b\u8ee2\u4e2d\u306b\u8ff7\u60d1\u306a\u30c8\u30ea\u30c3\u30d7\u304c\u767a\u751f\u3057\u306a\u3044\u3088\u3046\u306b\u3001\u65e2\u5b58\u306e\u56de\u8def\u4fdd\u8b77\u3068\u8abf\u6574\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u4e3b\u306a\u4ed5\u69d8\u306b\u306f\u3001\u5de5\u696d\u898f\u683c\u306b\u9069\u5408\u3059\u308b\u5b9a\u683c\u96fb\u5727\uff0812V\u300124V\u300148V\u3001\u307e\u305f\u306f1000V\u307e\u3067\u306e\u9ad8\u96fb\u5727DC\u30c9\u30e9\u30a4\u30d6\uff09\u3001\u5de5\u696d\u74b0\u5883\u3067\u4e00\u822c\u7684\u306a\u96fb\u6c17\u30ce\u30a4\u30ba\u306b\u5bfe\u3059\u308b\u8010\u6027\u3001\u5236\u5fa1\u76e4\u306b\u7c21\u5358\u306b\u7d71\u5408\u3067\u304d\u308bDIN\u30ec\u30fc\u30eb\u3078\u306e\u53d6\u308a\u4ed8\u3051\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002\u7523\u696d\u7528SPD\u306fIEC 61643-31\u306b\u6e96\u62e0\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u5371\u967a\u5834\u6240\u8a8d\u8a3c\uff08ATEX\u3001IECEx\uff09\u3092\u53d6\u5f97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u914d\u96fb<\/h3>\n\n\n\n<p>\u6700\u8fd1\u306e\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u3067\u306f\u3001\u52b9\u7387\u3092\u9ad8\u3081\u3001\u5909\u63db\u30ed\u30b9\u3092\u6e1b\u3089\u3059\u305f\u3081\u306b\u3001\u76f4\u6d41\u914d\u96fb\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u63a1\u7528\u3059\u308b\u30b1\u30fc\u30b9\u304c\u5897\u3048\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u901a\u5e38\u3001DC380V\u307e\u305f\u306fDC400V\u3067\u52d5\u4f5c\u3057\u3001\u30b5\u30fc\u30d0\u30fc\u30e9\u30c3\u30af\u306b\u76f4\u63a5\u914d\u96fb\u3059\u308b\u305f\u3081\u3001\u500b\u5225\u306eAC-DC\u96fb\u6e90\u304c\u4e0d\u8981\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u306eDC SPD\u306f\u3001\u4e00\u6b21DC\u914d\u96fb\u30d0\u30b9\u3001\u30be\u30fc\u30f3\u914d\u96fb\u30d1\u30cd\u30eb\u3001\u304a\u3088\u3073\u30e9\u30c3\u30af\u30ec\u30d9\u30eb\u306e\u914d\u96fb\u30e6\u30cb\u30c3\u30c8\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002\u4fdd\u8b77\u6226\u7565\u306f\u3001\u30df\u30c3\u30b7\u30e7\u30f3\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306a\u65bd\u8a2d\u306e\u9ad8\u53ef\u7528\u6027\u8981\u4ef6\u3092\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u81ea\u52d5\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u6a5f\u80fd\u3092\u5099\u3048\u305f\u5197\u9577SPD\u3092\u5b9f\u88c5\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u91cd\u8981\u306a\u4ed5\u69d8\u306b\u306f\u3001\u9ad8\u3044\u9023\u7d9a\u5b9a\u683c\u96fb\u6d41\uff08\u4e3b\u914d\u96fb\u3067\u6700\u59271000A\uff09\u3001\u7e4a\u7d30\u306a\u30b5\u30fc\u30d0\u30fc\u96fb\u5b50\u6a5f\u5668\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306e\u4f4e\u96fb\u5727\u4fdd\u8b77\u30ec\u30d9\u30eb\u3001\u5730\u7d61\u691c\u51fa\u306e\u554f\u984c\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306e\u6700\u5c0f\u6f0f\u308c\u96fb\u6d41\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306e\u76e3\u8996\u3068\u4e88\u77e5\u4fdd\u5168\u306e\u305f\u3081\u306e\u30d3\u30eb\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u3068\u306e\u7d71\u5408\u306a\u3069\u304c\u3042\u308b\u3002\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u306eSPD\u306f\u3001MTBF\uff08\u5e73\u5747\u6545\u969c\u9593\u9694\uff09\u304c100\u4e07\u6642\u9593\u3092\u8d85\u3048\u308b\u9ad8\u3044\u4fe1\u983c\u6027\u3092\u5b9f\u8a3c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e\u306e\u4ed5\u69d8<\/h2>\n\n\n\n<p>\u9069\u5207\u306a DC \u30b5\u30fc\u30b8\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u3092\u9078\u629e\u3059\u308b\u306b\u306f\u3001\u4e3b\u8981\u306a\u6280\u8853\u4ed5\u69d8\u3092\u7406\u89e3\u3057\u3001\u305d\u308c\u3089\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u8981\u4ef6\u306b\u3069\u306e\u3088\u3046\u306b\u95a2\u9023\u3059\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u9069\u5207\u306a\u4ed5\u69d8\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u91cd\u8981\u3067\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5fc5\u9808\u6280\u8853\u4ed5\u69d8<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u4ed5\u69d8<\/th><th>\u30b7\u30f3\u30dc\u30eb<\/th><th>\u8aac\u660e<\/th><th>\u9078\u8003\u57fa\u6e96<\/th><\/tr><\/thead><tbody><tr><td>\u6700\u5927\u9023\u7d9a\u52d5\u4f5c\u96fb\u5727<\/td><td>MCOV (Uc)<\/td><td>SPD\u304c\u9023\u7d9a\u7684\u306b\u8010\u3048\u3089\u308c\u308b\u6700\u9ad8\u76f4\u6d41\u96fb\u5727<\/td><td>1.2\u00d7\u6700\u5927\u30b7\u30b9\u30c6\u30e0\u96fb\u5727\u4ee5\u4e0a\u3067\u3042\u308b\u3053\u3068<\/td><\/tr><tr><td>\u96fb\u5727\u4fdd\u8b77\u30ec\u30d9\u30eb<\/td><td>\u4e0a\u3078<\/td><td>\u30b5\u30fc\u30b8\u6642\u306e\u6700\u5927\u8a31\u5bb9\u96fb\u5727<\/td><td>\u6a5f\u5668\u306e\u8010\u96fb\u572780%\u672a\u6e80\u3067\u3042\u308b\u3053\u3068\u3002<\/td><\/tr><tr><td>\u516c\u79f0\u653e\u96fb\u96fb\u6d41<\/td><td>\u3067<\/td><td>\u6a19\u6e96\u8a66\u9a13\u96fb\u6d41\uff088\/20 \u00b5s\u6ce2\u5f62\uff09<\/td><td>\u30bf\u30a4\u30d73\u306f\u6700\u5c0f5kA\u3001\u30bf\u30a4\u30d72\u306f\u6700\u5c0f20kA\u3001\u30bf\u30a4\u30d71\u306f\u6700\u5c0f40kA<\/td><\/tr><tr><td>\u6700\u5927\u653e\u96fb\u96fb\u6d41<\/td><td>\u30a2\u30a4\u30de\u30c3\u30af\u30b9<\/td><td>\u30d4\u30fc\u30af\u30b5\u30fc\u30b8\u96fb\u6d41\u80fd\u529b<\/td><td>\u66b4\u9732\u30ec\u30d9\u30eb\u3068\u30ea\u30b9\u30af\u8a55\u4fa1\u306b\u57fa\u3065\u304f<\/td><\/tr><tr><td>\u77ed\u7d61\u96fb\u6d41\u5b9a\u683c<\/td><td>SCCR<\/td><td>SPD\u304c\u5b89\u5168\u306b\u906e\u65ad\u3067\u304d\u308b\u6700\u5927\u6545\u969c\u96fb\u6d41<\/td><td>\u8a2d\u7f6e\u5834\u6240\u3067\u5229\u7528\u53ef\u80fd\u306a\u6545\u969c\u96fb\u6d41\u3092\u8d85\u3048\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044<\/td><\/tr><tr><td>\u5fdc\u7b54\u6642\u9593<\/td><td>\u30bf<\/td><td>\u30b5\u30fc\u30b8\u767a\u751f\u304b\u3089\u5b8c\u5168\u5c0e\u901a\u307e\u3067\u306e\u6642\u9593<\/td><td>&lt; \u654f\u611f\u306a\u96fb\u5b50\u6a5f\u5668\u306b\u306f100 ns\u672a\u6e80\u300125 ns\u672a\u6e80\u304c\u671b\u307e\u3057\u3044<\/td><\/tr><tr><td>\u96fb\u6d41\u306e\u4e2d\u65ad\u3092\u30d5\u30a9\u30ed\u30fc\u3059\u308b<\/td><td>\u3082\u3057<\/td><td>SPD\u304c\u906e\u65ad\u3067\u304d\u308bDC\u30d5\u30a9\u30ed\u30fc\u30aa\u30f3\u96fb\u6d41<\/td><td>DC\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u91cd\u8981\u3002<\/td><\/tr><tr><td>\u52d5\u4f5c\u6e29\u5ea6\u7bc4\u56f2<\/td><td>&#8211;<\/td><td>\u74b0\u5883\u6e29\u5ea6\u9650\u754c<\/td><td>\u8a2d\u7f6e\u74b0\u5883\u306b\u9069\u5408\uff1b-40\u2103\uff5e+85\u2103\uff08\u4ee3\u8868\u5024<\/td><\/tr><tr><td>\u30a4\u30f3\u30b0\u30ec\u30b9\u4fdd\u8b77\u7b49\u7d1a<\/td><td>IP\u7b49\u7d1a<\/td><td>\u307b\u3053\u308a\u3084\u6e7f\u6c17\u304b\u3089\u306e\u4fdd\u8b77<\/td><td>IP20\uff08\u5c4b\u5185\u7528\uff09\u3001IP65+\uff08\u5c4b\u5916\u7528<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u696d\u7e3e\u8a55\u4fa1\u3068\u30af\u30e9\u30b9\u5206\u3051<\/h3>\n\n\n\n<p>\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5834\u6240\u3068\u6027\u80fd\u8981\u4ef6\u3092\u5b9a\u7fa9\u3059\u308b\u56fd\u969b\u898f\u683c\u306b\u5f93\u3063\u3066\u5206\u985e\u3055\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<p><strong>\u30bf\u30a4\u30d71\uff08\u30af\u30e9\u30b9I\uff09<\/strong>:\u30b5\u30fc\u30d3\u30b9\u30a8\u30f3\u30c8\u30e9\u30f3\u30b9\u307e\u305f\u306f\u8a2d\u7f6e\u306e\u8d77\u70b9\u306b\u8a2d\u7f6e\u3055\u308c\u308b\u300210\/350\u00b5s\u6ce2\u5f62\u306e\u76f4\u6483\u96f7\u96fb\u6d41\u306b\u8010\u3048\u308b\u3053\u3068\u3002\u5178\u578b\u7684\u306a\u5b9a\u683c\uff1aIimp = 25 kA\uff5e100 kA\/\u6975\u3002.<\/p>\n\n\n\n<p><strong>\u30bf\u30a4\u30d72\uff08\u30af\u30e9\u30b9II\uff09<\/strong>:\u5206\u96fb\u76e4\u3001\u526f\u5206\u96fb\u76e4\u306b\u8a2d\u7f6e\u30028\/20\u03bcs\u6ce2\u5f62\u3067\u30c6\u30b9\u30c8\u3002\u5178\u578b\u7684\u306a\u5b9a\u683c\uff1aIn = 20 kA\uff5e40 kA\u3001Imax = 40 kA\uff5e80 kA\u3002.<\/p>\n\n\n\n<p><strong>\u30bf\u30a4\u30d73\uff08\u30af\u30e9\u30b9III\uff09<\/strong>:\u6a5f\u5668\u7aef\u5b50\u306b\u8a2d\u7f6e\u3057\u3001\u5fae\u7d30\u306a\u4fdd\u8b77\u3092\u5b9f\u73fe\u3002\u5b9a\u683c\u30a8\u30cd\u30eb\u30ae\u30fc\u306f\u4f4e\u3044\u304c\u5fdc\u7b54\u304c\u901f\u3044\u3002\u5178\u578b\u7684\u306a\u5b9a\u683cIn = 5 kA \u304b\u3089 10 kA\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a8d\u8a3c\u57fa\u6e96\u3068\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9<\/h3>\n\n\n\n<p>\u9ad8\u54c1\u8cea\u306e\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e\u306b\u306f\u3001\u516c\u8a8d\u306e\u56fd\u969b\u898f\u683c\u306b\u6e96\u62e0\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3059\u8a3c\u660e\u66f8\u3092\u6dfb\u4ed8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>IEC 61643-31<\/strong>:\u8a66\u9a13\u624b\u9806\u304a\u3088\u3073\u6027\u80fd\u8981\u4ef6\u3092\u898f\u5b9a\u3059\u308b\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e\u306e\u56fd\u969b\u898f\u683c<\/li>\n\n\n\n<li><strong>UL 1449\u7b2c4\u7248<\/strong>:DC SPD\u8981\u4ef6\u3092\u542b\u3080\u5317\u7c73\u5b89\u5168\u898f\u683c<\/li>\n\n\n\n<li><strong>EN 50539-11<\/strong>:\u592a\u967d\u5149\u767a\u96fb\u8a2d\u5099\u306b\u304a\u3051\u308b\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u306b\u95a2\u3059\u308b\u6b27\u5dde\u898f\u683c<\/li>\n\n\n\n<li><strong>IEEE C62.41<\/strong>:\u4f4e\u96fb\u5727\u4ea4\u6d41\u96fb\u6e90\u56de\u8def\u306e\u30b5\u30fc\u30b8\u74b0\u5883\u306b\u95a2\u3059\u308b\u30ac\u30a4\u30c9\uff08\u30b5\u30fc\u30b8\u8a66\u9a13\u7528\u53c2\u8003\u8cc7\u6599\uff09<\/li>\n\n\n\n<li><strong>IEC 60364-5-53<\/strong>:\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e\u306e\u8a2d\u7f6e\u8981\u4ef6<\/li>\n<\/ul>\n\n\n\n<p>\u6b27\u5dde\u5e02\u5834\u5411\u3051\u306eCE\u30de\u30fc\u30ad\u30f3\u30b0\u3001\u30bd\u30fc\u30e9\u30fc\u30fb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5411\u3051\u306eT\u00dcV\u8a8d\u8a3c\u3001\u96fb\u6c17\u901a\u4fe1\u6a5f\u5668\u5411\u3051\u306eNEBS\u8a8d\u8a3c\u306a\u3069\u3001\u7279\u5b9a\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5411\u3051\u306b\u8ffd\u52a0\u306e\u8a8d\u8a3c\u304c\u5fc5\u8981\u3068\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u9078\u8003\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/h3>\n\n\n\n<p>DC SPD\u3092\u6307\u5b9a\u3059\u308b\u5834\u5408\u306f\u3001\u3053\u306e\u4f53\u7cfb\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b7\u30b9\u30c6\u30e0\u96fb\u5727\u306e\u6c7a\u5b9a<\/strong>:\u516c\u79f0\u76f4\u6d41\u96fb\u5727\u3068\u3001\u6607\u5727\u3084\u6e29\u5ea6\u306b\u3088\u308b\u5f71\u97ff\u3092\u542b\u3080\u6700\u5927\u30b7\u30b9\u30c6\u30e0\u96fb\u5727\u306e\u7279\u5b9a<\/li>\n\n\n\n<li><strong>\u66b4\u9732\u30ec\u30d9\u30eb\u306e\u8a55\u4fa1<\/strong>:\u5730\u7406\u7684\u4f4d\u7f6e\u3001\u8a2d\u7f6e\u30bf\u30a4\u30d7\u3001\u6545\u969c\u306e\u7d50\u679c\u306b\u57fa\u3065\u304f\u96f7\u30ea\u30b9\u30af\u306e\u8a55\u4fa1<\/li>\n\n\n\n<li><strong>\u5fc5\u8981\u306a\u4fdd\u8b77\u30ec\u30d9\u30eb\u3092\u8a08\u7b97\u3059\u308b<\/strong>:\u4fdd\u8b77\u3059\u308b\u6a5f\u5668\u306e\u30a4\u30f3\u30d1\u30eb\u30b9\u8010\u96fb\u5727\u3092\u6c7a\u5b9a\u3059\u308b\u3002<\/li>\n\n\n\n<li><strong>\u9069\u5207\u306a\u30bf\u30a4\u30d7\u3092\u9078\u629e<\/strong>:\u30bf\u30a4\u30d71\u30012\u3001\u307e\u305f\u306f3\u3092\u3001\u8a2d\u7f6e\u5834\u6240\u3068\u8abf\u6574\u8981\u4ef6\u306b\u57fa\u3065\u3044\u3066\u9078\u629e\u3059\u308b\u3002<\/li>\n\n\n\n<li><strong>\u5b9a\u683c\u96fb\u6d41\u306e\u78ba\u8a8d<\/strong>:In\u3068Imax\u306e\u5b9a\u683c\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u304b\u3001\u307e\u305f\u306f\u4e0a\u56de\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/li>\n\n\n\n<li><strong>\u30d5\u30a9\u30ed\u30fc\u96fb\u6d41\u906e\u65ad\u306e\u78ba\u8a8d<\/strong>:SPD\u304c\u4f7f\u7528\u53ef\u80fd\u306a\u77ed\u7d61\u96fb\u6d41\u306e\u5b9a\u683c\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/li>\n\n\n\n<li><strong>\u74b0\u5883\u683c\u4ed8\u3051\u306e\u30c1\u30a7\u30c3\u30af<\/strong>:IP\u7b49\u7d1a\u3068\u6e29\u5ea6\u7bc4\u56f2\u3092\u8a2d\u7f6e\u6761\u4ef6\u306b\u5408\u308f\u305b\u308b<\/li>\n\n\n\n<li><strong>\u898f\u683c\u9075\u5b88\u306e\u691c\u8a3c<\/strong>:\u5e02\u5834\u304a\u3088\u3073\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u5fc5\u8981\u306a\u8a8d\u8a3c\u306e\u78ba\u8a8d<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e\u4fa1\u683c<\/h2>\n\n\n\n<p>\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u306e\u30b3\u30b9\u30c8\u306f\u3001\u6280\u8853\u3001\u6027\u80fd\u4ed5\u69d8\u3001\u304a\u3088\u3073\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u8981\u4ef6\u306b\u3088\u3063\u3066\u5927\u304d\u304f\u7570\u306a\u308a\u307e\u3059\u3002\u4fa1\u683c\u5e2f\u3068\u30b3\u30b9\u30c8\u8981\u56e0\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u4fdd\u8b77\u30cb\u30fc\u30ba\u3068\u4e88\u7b97\u306e\u5236\u7d04\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u8003\u616e\u3057\u305f\u3001\u5341\u5206\u306a\u60c5\u5831\u306b\u57fa\u3065\u304f\u8cfc\u5165\u6c7a\u5b9a\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30bf\u30a4\u30d7\u30fb\u7528\u9014\u5225\u4fa1\u683c\u5e2f<\/h3>\n\n\n\n<p>\u57fa\u672c\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\uff08\u30bf\u30a4\u30d73\u3001\u4f4e\u96fb\u5727\u3001\u5c4b\u5185\u4f7f\u7528\uff09\u5411\u3051\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u30ec\u30d9\u30eb\u306eDC SPD\u306f\u3001\u901a\u5e38\u30011\u30c7\u30d0\u30a4\u30b9\u3042\u305f\u308a$30\uff5e$150\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30e6\u30cb\u30c3\u30c8\u306f\u3001\u516c\u79f0\u653e\u96fb\u96fb\u6d41\u304c5\uff5e10kA\u306e12\uff5e48V DC\u30b7\u30b9\u30c6\u30e0\u306b\u57fa\u672c\u7684\u306a\u4fdd\u8b77\u3092\u63d0\u4f9b\u3057\u3001\u5c0f\u898f\u6a21\u306a\u8a2d\u7f6e\u3084\u975e\u91cd\u8981\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u5546\u696d\u7528\u304a\u3088\u3073\u7523\u696d\u7528\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5411\u3051\u306e\u30df\u30c3\u30c9\u30ec\u30f3\u30b8DC SPD\uff08\u30bf\u30a4\u30d72\u3001600\uff5e1000V DC\u3001\u5b9a\u683c20\uff5e40kA\uff09\u306f\u3001\u4e00\u822c\u7684\u306b1\u30c7\u30d0\u30a4\u30b9\u3042\u305f\u308a$150\uff5e$600\u306e\u4fa1\u683c\u3067\u3059\u3002\u3053\u306e\u30ab\u30c6\u30b4\u30ea\u306b\u306f\u3001\u307b\u3068\u3093\u3069\u306e\u592a\u967d\u5149\u767a\u96fb\u4fdd\u8b77\u88c5\u7f6e\u3001\u30d0\u30c3\u30c6\u30ea\u30fc\u30b7\u30b9\u30c6\u30e0SPD\u3001\u304a\u3088\u3073\u7523\u696d\u7528\u5236\u5fa1\u30b7\u30b9\u30c6\u30e0\u30d7\u30ed\u30c6\u30af\u30bf\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30e6\u30cb\u30c3\u30c8\u306f\u3001\u6a19\u6e96\u7684\u306a\u8a2d\u7f6e\u306b\u304a\u3044\u3066\u512a\u308c\u305f\u6027\u80fd\u5bfe\u30b3\u30b9\u30c8\u6bd4\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u91cd\u8981\u30a4\u30f3\u30d5\u30e9\u5411\u3051\u9ad8\u6027\u80fdDC SPD\uff08\u30bf\u30a4\u30d71\u3001\u9ad8\u96fb\u5727\u3001\u5b9a\u683c40\uff5e100kA\u3001\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u6280\u8853\uff09\u306f\u30011\u53f0\u3042\u305f\u308a$600\uff5e$2,500\u4ee5\u4e0a\u306e\u88fd\u54c1\u30ec\u30f3\u30b8\u304c\u3042\u308a\u307e\u3059\u3002\u30d7\u30ec\u30df\u30a2\u30e0\u30e6\u30cb\u30c3\u30c8\u306b\u306f\u3001\u30ea\u30e2\u30fc\u30c8\u76e3\u8996\u3001\u4e88\u77e5\u4fdd\u5168\u6a5f\u80fd\u3001\u30df\u30c3\u30b7\u30e7\u30f3\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u4e0d\u53ef\u6b20\u306a\u512a\u308c\u305f\u30b5\u30fc\u30b8\u51e6\u7406\u7279\u6027\u306a\u3069\u306e\u9ad8\u5ea6\u306a\u6a5f\u80fd\u304c\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DC SPD\u306e\u4fa1\u683c\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u8981\u56e0<\/h3>\n\n\n\n<p><strong>\u6280\u8853\u3068\u90e8\u54c1<\/strong>:\u8907\u6570\u306e\u4fdd\u8b77\u6280\u8853\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u8a2d\u8a08\u306f\u3001\u512a\u308c\u305f\u6027\u80fd\u3068\u90e8\u54c1\u30b3\u30b9\u30c8\u306b\u3088\u308a\u3001\u5272\u9ad8\u306a\u4fa1\u683c\u3067\u8ca9\u58f2\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5358\u4e00\u6280\u8853\u306e\u30c7\u30d0\u30a4\u30b9\uff08MOV\u306e\u307f\u307e\u305f\u306f\u30b9\u30d1\u30fc\u30af\u30ae\u30e3\u30c3\u30d7\u306e\u307f\uff09\u306f\u3001\u8981\u6c42\u304c\u305d\u308c\u307b\u3069\u53b3\u3057\u304f\u306a\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5411\u3051\u306b\u3001\u3088\u308a\u7d4c\u6e08\u7684\u306a\u9078\u629e\u80a2\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u5b9a\u683c\u96fb\u5727\u304a\u3088\u3073\u5b9a\u683c\u96fb\u6d41<\/strong>:\u5b9a\u683c\u96fb\u5727\u304c\u9ad8\u304f\uff081000V\u30011500V DC\uff09\u3001\u30b5\u30fc\u30b8\u96fb\u6d41\u80fd\u529b\u304c\u9ad8\u3044\uff08Imax &gt; 80kA\uff09\u5834\u5408\u3001\u4fdd\u8b77\u7d20\u5b50\u304c\u5927\u304d\u304f\u306a\u308a\u3001\u69cb\u9020\u304c\u5805\u7262\u306b\u306a\u308b\u305f\u3081\u3001\u30b3\u30b9\u30c8\u304c\u5927\u5e45\u306b\u5897\u52a0\u3057\u307e\u3059\u3002\u30b5\u30fc\u30b8\u96fb\u6d41\u5b9a\u683c\u304c2\u500d\u306b\u306a\u308b\u3054\u3068\u306b\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u30b3\u30b9\u30c8\u306f\u901a\u5e3840\uff5e60%\u5897\u52a0\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u8a8d\u8a3c\u3068\u30c6\u30b9\u30c8<\/strong>:\u8907\u6570\u306e\u56fd\u969b\u898f\u683c\uff08IEC\u3001UL\u3001EN\uff09\u306e\u8a8d\u8a3c\u3092\u53d6\u5f97\u3057\u305f\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u30c6\u30b9\u30c8\u304a\u3088\u3073\u6e96\u62e0\u30b3\u30b9\u30c8\u3092\u53cd\u6620\u3057\u3066\u4fa1\u683c\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u56fa\u6709\u306e\u8a8d\u8a3c\uff08\u96fb\u6c17\u901a\u4fe1\u7528\u306eNEBS\u3001\u5371\u967a\u5834\u6240\u7528\u306eATEX\uff09\u306f\u3001\u57fa\u672c\u4fa1\u683c\u306b20-40%\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u6a5f\u80fd\u3068\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/strong>:\u9060\u9694\u76e3\u8996\u6a5f\u80fd\u3001\u7d71\u5408\u578b\u65ad\u8def\u5668\u3001\u76ee\u8996\u304a\u3088\u3073\u96fb\u6c17\u7684\u306a\u6545\u969c\u8868\u793a\u3001\u6e29\u5ea6\u76e3\u8996\u3092\u5099\u3048\u305fSPD\u306f\u3001\u57fa\u672c\u7684\u306a\u88c5\u7f6e\u3088\u308a\u3082\u30b3\u30b9\u30c8\u304c\u9ad8\u3044\u304c\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30b3\u30b9\u30c8\u306e\u524a\u6e1b\u3068\u30b7\u30b9\u30c6\u30e0\u306e\u4fe1\u983c\u6027\u306e\u5411\u4e0a\u306b\u3088\u308a\u3001\u5927\u304d\u306a\u4fa1\u5024\u3092\u63d0\u4f9b\u3059\u308b\u3002.<\/p>\n\n\n\n<p><strong>\u30d6\u30e9\u30f3\u30c9\u3068\u4fdd\u8a3c<\/strong>:\u5b9f\u7e3e\u306e\u3042\u308b\u8001\u8217\u30e1\u30fc\u30ab\u30fc\u306f\u3001\u4e00\u822c\u7684\u306b15-30%\u306e\u88fd\u54c1\u4fa1\u683c\u306f\u3001\u3042\u307e\u308a\u77e5\u3089\u308c\u3066\u3044\u306a\u3044\u30d6\u30e9\u30f3\u30c9\u3088\u308a\u3082\u9ad8\u304f\u306a\u308a\u307e\u3059\u304c\u3001\u512a\u308c\u305f\u6280\u8853\u30b5\u30dd\u30fc\u30c8\u3001\u3088\u308a\u9577\u3044\u4fdd\u8a3c\u671f\u9593\uff08\u591a\u304f\u306e\u5834\u5408\u30011\uff5e2\u5e74\u306b\u5bfe\u3057\u30665\uff5e10\u5e74\uff09\u3001\u4ea4\u63db\u90e8\u54c1\u306e\u5165\u624b\u3057\u3084\u3059\u3055\u306a\u3069\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8abf\u9054\u306b\u95a2\u3059\u308b\u63a8\u5968\u4e8b\u9805<\/h3>\n\n\n\n<p>\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u3092\u8cfc\u5165\u3059\u308b\u969b\u306f\u3001\u521d\u671f\u8cfc\u5165\u4fa1\u683c\u3060\u3051\u3067\u306a\u304f\u3001\u7dcf\u6240\u6709\u30b3\u30b9\u30c8\u3092\u8003\u616e\u3057\u3066\u304f\u3060\u3055\u3044\u3002$50,000\u306e\u6a5f\u5668\u306e\u6545\u969c\u3092\u9632\u3050$500\u306e\u9069\u5207\u306aSPD\u306f\u975e\u5e38\u306b\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u4fdd\u8b77\u306b\u5931\u6557\u3059\u308b$100\u306e\u4e0d\u5341\u5206\u306a\u30c7\u30d0\u30a4\u30b9\u306f\u8aa4\u3063\u305f\u7d4c\u6e08\u6027\u3092\u751f\u307f\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u5358\u4e00\u306e\u9ad8\u6027\u80fd\u30c7\u30d0\u30a4\u30b9\u306b\u4f9d\u5b58\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u8907\u6570\u306e\u30ec\u30d9\u30eb\u3067\u9069\u5207\u306a\u5b9a\u683c\u306eSPD\u3092\u4f7f\u7528\u3057\u3066\u5354\u8abf\u4fdd\u8b77\u6226\u7565\u3092\u5b9f\u65bd\u3059\u308b\u3002\u30ab\u30b9\u30b1\u30fc\u30c9\u8abf\u6574\u3068\u3057\u3066\u77e5\u3089\u308c\u308b\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3001\u5358\u4e00\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u5b8c\u5168\u306a\u4fdd\u8b77\u3092\u9054\u6210\u3057\u3088\u3046\u3068\u3059\u308b\u3088\u308a\u3082\u4f4e\u3044\u7dcf\u30b3\u30b9\u30c8\u3067\u512a\u308c\u305f\u5168\u4f53\u7684\u306a\u4fdd\u8b77\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>SPD\u3092\u8cfc\u5165\u3059\u308b\u969b\u306f\u3001\u8cab\u901a\u96fb\u5727\u66f2\u7dda\u3001\u30a8\u30cd\u30eb\u30ae\u30fc\u5b9a\u683c\u3001\u8abf\u6574\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306a\u3069\u3001\u5305\u62ec\u7684\u306a\u6280\u8853\u8cc7\u6599\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308b\u30e1\u30fc\u30ab\u30fc\u304b\u3089\u8cfc\u5165\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u306e\u60c5\u5831\u306f\u3001\u9069\u5207\u306a\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u306b\u4e0d\u53ef\u6b20\u3067\u3042\u308a\u3001\u65e2\u5b58\u306e\u4fdd\u8b77\u30b9\u30ad\u30fc\u30e0\u3068\u306e\u4e92\u63db\u6027\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u8a2d\u7f6e\u306e\u52b4\u529b\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u5fc5\u8981\u6027\u3001\u4ea4\u63db\u9593\u9694\u306a\u3069\u3001\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u30b3\u30b9\u30c8\u3092\u8003\u616e\u3059\u308b\u3002\u5de5\u5177\u4e0d\u8981\u306e\u53d6\u308a\u4ed8\u3051\u3001\u660e\u78ba\u306a\u30b9\u30c6\u30fc\u30bf\u30b9\u8868\u793a\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u5f0f\u4ea4\u63db\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u5099\u3048\u305f\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u521d\u671f\u4fa1\u683c\u304c\u9ad8\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u9577\u671f\u7684\u306a\u6240\u6709\u30b3\u30b9\u30c8\u3092\u524a\u6e1b\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u5927\u898f\u6a21\u306a\u8a2d\u7f6e\u306e\u5834\u5408\u306f\u3001\u30e1\u30fc\u30ab\u30fc\u306b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30fb\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30fb\u30b5\u30dd\u30fc\u30c8\u3092\u4f9d\u983c\u3057\u3001\u4fdd\u8b77\u8a2d\u8a08\u3092\u6700\u9069\u5316\u3057\u3001\u9069\u5207\u306a\u30c7\u30d0\u30a4\u30b9\u3092\u9078\u629e\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u8a55\u5224\u306e\u9ad8\u3044\u30b5\u30d7\u30e9\u30a4\u30e4\u306e\u591a\u304f\u306f\u3001\u5927\u898f\u6a21\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u5bfe\u3057\u3066\u3053\u306e\u30b5\u30fc\u30d3\u30b9\u3092\u7121\u511f\u3067\u63d0\u4f9b\u3057\u3066\u304a\u308a\u3001\u88fd\u54c1\u81ea\u4f53\u306e\u4fa1\u5024\u3092\u5927\u5e45\u306b\u9ad8\u3081\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u8cea\u554f1\uff1a\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e\uff08SPD\uff09\u306e\u30bf\u30a4\u30d71\u3068\u30bf\u30a4\u30d72\u306e\u9055\u3044\u3084\u3001PV\u30b7\u30b9\u30c6\u30e0\u306b\u9069\u3057\u305fSPD\u306e\u9078\u3073\u65b9\u306b\u3064\u3044\u3066\u6559\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/h3>\n\n\n\n<p>\u8aa4\u3063\u305f\u30bf\u30a4\u30d7\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u5b89\u5168\u4e0a\u306e\u5371\u967a\u3084\u4e0d\u5341\u5206\u306a\u4fdd\u8b77\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u3053\u306e\u533a\u5225\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3042\u308b\u3002.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30bf\u30a4\u30d71\uff08\u30af\u30e9\u30b9I\uff09\u306eSPD\uff1a<\/strong>\u00a0\u4e00\u822c\u7684\u306b\u76f4\u6483\u96f7\u306b\u3088\u308b\u9ad8\u30a8\u30cd\u30eb\u30ae\u30fc\u306e\u904e\u6e21\u96fb\u6d41\u3092\u653e\u96fb\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u300210\/350 \u00b5s \u306e\u6ce2\u5f62\u304c\u7279\u5fb4\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u3001\u5916\u90e8\u96f7\u4fdd\u8b77\uff08\u540c\u3058\u5efa\u7269\u4e0a\u306e\u907f\u96f7\u91dd\u306a\u3069\uff09\u3092\u5099\u3048\u305f\u30b7\u30b9\u30c6\u30e0\u3001\u307e\u305f\u306f\u5927\u898f\u6a21\u306a\u592a\u967d\u5149\u767a\u96fb\u6240\u3067\u306f\u5fc5\u9808\u3067\u3059\u3002\u4e3b\u914d\u96fb\u70b9\u306b\u8a2d\u7f6e\u3055\u308c\u307e\u3059\u3002.<\/li>\n\n\n\n<li><strong>\u30bf\u30a4\u30d72\uff08\u30af\u30e9\u30b9II\uff09\u306eSPD\uff1a<\/strong>\u00a0Designed to handle lower-energy induced surges (switching transients and indirect lightning strikes), characterized by the 8\/20 \u00b5s waveform. These are the most common SPDs used in commercial and residential PV combiner boxes and at the inverter&#8217;s DC input.<\/li>\n<\/ul>\n\n\n\n<p><strong>\u3069\u3046\u9078\u3076\u304b\uff1a<\/strong><br>PV\u30a2\u30ec\u30a4\u304c\u907f\u96f7\u91dd\u306e\u3042\u308b\u91ce\u539f\u306b\u8a2d\u7f6e\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u907f\u96f7\u91dd\u3092\u8a2d\u7f6e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002&nbsp;<strong>\u30bf\u30a4\u30d71 SPD<\/strong>&nbsp;\u30e1\u30a4\u30f3\u30a2\u30ec\u30a4\u30fb\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u306b\u3066\u3002.<br>\u5916\u90e8\u907f\u96f7\u91dd\u306e\u306a\u3044\u6a19\u6e96\u7684\u306a\u5c4b\u4e0a\u30b7\u30b9\u30c6\u30e0\u3092\u8a2d\u7f6e\u3059\u308b\u5834\u5408\u306f\u3001\u907f\u96f7\u91dd\u304c\u5fc5\u8981\u3067\u3059\u3002&nbsp;<strong>\u30bf\u30a4\u30d72 SPD<\/strong>&nbsp;\u3067\u5341\u5206\u3067\u3059\u3002\u5fc5\u9808\u8981\u4ef6\u306b\u3064\u3044\u3066\u306f\u3001\u5fc5\u305a\u5730\u57df\u306e\u96fb\u6c17\u5de5\u4e8b\u898f\u5b9a\uff08\u7c73\u56fd\u3067\u306fNEC690.41\uff09\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">FAQ 2: If my DC voltage is 1000V, but the SPD datasheet lists &#8220;Max. Continuous Operating Voltage (Ucpv) as 1100V,&#8221; is that SPD suitable for my system?<\/h3>\n\n\n\n<p>\u306f\u3044\u3001\u305d\u306eSPD\u306f\u9069\u5207\u3067\u3042\u308b\u3068\u601d\u308f\u308c\u307e\u3059\u3057\u3001\u5b9f\u969b\u3001\u96fb\u5727\u30de\u30fc\u30b8\u30f3\u306f\u30b0\u30c3\u30c9\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3067\u3059\u3002\u3053\u308c\u306f&nbsp;<strong>&#8220;temporary overvoltages&#8221; (TOV)<\/strong>&nbsp;.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u539f\u5247\uff1a<\/strong>\u00a0\u6700\u5927\u9023\u7d9a\u52d5\u4f5c\u96fb\u5727\uff08Ucpv\u307e\u305f\u306fUc\uff09\u306f\u3001SPD\u304c\u52a3\u5316\u3059\u308b\u3053\u3068\u306a\u304f\u9023\u7d9a\u7684\u306b\u8010\u3048\u3089\u308c\u308b\u96fb\u5727\u3067\u3059\u3002\u592a\u967d\u5149\u767a\u96fb\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u96fb\u5727\u306f\u5b8c\u5168\u306b\u5b89\u5b9a\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6e29\u5ea6\u3084\u653e\u5c04\u7167\u5ea6\u306b\u3088\u3063\u3066\u5909\u52d5\u3057\u307e\u3059\u3002.<\/li>\n\n\n\n<li><strong>\u5b89\u5168\u30de\u30fc\u30b8\u30f3\uff1a<\/strong>\u00a0Uc\u5024\u304c\u4ee5\u4e0b\u306eSPD\u3092\u9078\u3076\u3079\u304d\u3067\u3042\u308b\u3002\u00a0<strong>\u5c11\u306a\u304f\u3068\u30821.2\u500d<\/strong>\u00a0\u30b7\u30b9\u30c6\u30e0\u306e\u958b\u56de\u8def\u96fb\u5727\uff08Voc stc\uff09\u3002\u4f8b\u3048\u3070\u30011000V DC\u30b7\u30b9\u30c6\u30e0\u306e\u5834\u5408\u3001\u63a8\u5968Uc\u306f\u901a\u5e38\u7d041100V DC\u4ee5\u4e0a\u3067\u3059\u3002.<\/li>\n\n\n\n<li><strong>\u306a\u305c\u4f59\u5206\u306a\u30de\u30fc\u30b8\u30f3\u3092\u53d6\u308b\u306e\u304b\uff1a<\/strong>\u00a0If you choose an SPD with a Uc exactly matching your system&#8217;s 1000V, a cold-temperature voltage rise (which increases panel voltage) could push the system voltage over the Uc threshold, causing the SPD to operate (short circuit) unnecessarily or fail prematurely. A higher Uc ensures the SPD &#8220;rides through&#8221; these normal voltage fluctuations and only activates during a real surge event.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u7d50\u8ad6<\/h2>\n\n\n\n<p>\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u73fe\u4ee3\u306e\u96fb\u6c17\u30a4\u30f3\u30d5\u30e9\u306b\u4e0d\u53ef\u6b20\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3042\u308a\u3001\u592a\u967d\u30a8\u30cd\u30eb\u30ae\u30fc\u3001\u30d0\u30c3\u30c6\u30ea\u8caf\u8535\u3001\u96fb\u6c17\u81ea\u52d5\u8eca\u5145\u96fb\u3001\u96fb\u6c17\u901a\u4fe1\u3001\u304a\u3088\u3073\u7523\u696d\u30aa\u30fc\u30c8\u30e1\u30fc\u30b7\u30e7\u30f3\u30fb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306a\u3069\u3001\u307e\u3059\u307e\u3059\u666e\u53ca\u3057\u3066\u3044\u308b\u76f4\u6d41\u30b7\u30b9\u30c6\u30e0\u306b\u91cd\u8981\u306a\u4fdd\u8b77\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u9069\u5207\u306b\u6307\u5b9a\u304a\u3088\u3073\u8a2d\u7f6e\u3055\u308c\u305fDC SPD\u3078\u306e\u6295\u8cc7\u306f\u3001\u6a5f\u5668\u306e\u81f4\u547d\u7684\u306a\u6545\u969c\u3092\u9632\u6b62\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3057\u3001\u30b3\u30b9\u30c8\u306e\u304b\u304b\u308b\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3053\u3068\u3067\u3001\u975e\u5e38\u306b\u5927\u304d\u306a\u4fa1\u5024\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u9069\u5207\u306a\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u3092\u9078\u629e\u3059\u308b\u306b\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u96fb\u5727\u3001\u66dd\u9732\u30ec\u30d9\u30eb\u3001\u6a5f\u5668\u306e\u8106\u5f31\u6027\u3001\u304a\u3088\u3073\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u56fa\u6709\u306e\u8981\u4ef6\u3092\u614e\u91cd\u306b\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u672c\u30ac\u30a4\u30c9\u306b\u8a73\u8ff0\u3055\u308c\u3066\u3044\u308b\u52d5\u4f5c\u539f\u7406\u3001\u6280\u8853\u30aa\u30d7\u30b7\u30e7\u30f3\u3001\u304a\u3088\u3073\u6027\u80fd\u4ed5\u69d8\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u304a\u3088\u3073\u8abf\u9054\u62c5\u5f53\u8005\u306f\u3001\u30b3\u30b9\u30c8\u3092\u52b9\u679c\u7684\u306b\u7ba1\u7406\u3057\u306a\u304c\u3089\u4fdd\u8b77\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306e\u60c5\u5831\u306b\u57fa\u3065\u3044\u305f\u6c7a\u5b9a\u3092\u4e0b\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u306e\u8cfc\u5165\u306b\u95a2\u3057\u3066\u306f\u3001\u7af6\u4e89\u529b\u306e\u3042\u308b\u4fa1\u683c\u3067\u9ad8\u54c1\u8cea\u306e\u88fd\u54c1\u3092\u63d0\u4f9b\u3059\u308b\u8a55\u5224\u306e\u826f\u3044\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u304b\u3089\u8cfc\u5165\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002. <strong>\u30c1\u30f3\u30af\u30a2\u30f3\u30e4<\/strong> \u306f\u3001\u518d\u751f\u53ef\u80fd\u30a8\u30cd\u30eb\u30ae\u30fc\u3001\u7523\u696d\u3001\u304a\u3088\u3073\u96fb\u6c17\u901a\u4fe1\u306e\u5404\u5206\u91ce\u306e\u8981\u6c42\u306e\u53b3\u3057\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5411\u3051\u306b\u8a2d\u8a08\u3055\u308c\u305f\u30d7\u30ec\u30df\u30a2\u30e0DC\u30b5\u30fc\u30b8\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u306e\u88fd\u9020\u3092\u5c02\u9580\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u5f53\u793e\u306e\u88fd\u54c1\u306f\u3001\u9ad8\u5ea6\u306a\u4fdd\u8b77\u6280\u8853\u3068\u53b3\u683c\u306a\u54c1\u8cea\u7ba1\u7406\u304a\u3088\u3073\u5305\u62ec\u7684\u306a\u8a8d\u8a3c\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u6700\u3082\u53b3\u3057\u3044\u74b0\u5883\u3067\u3082\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u6027\u80fd\u3092\u767a\u63ee\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u5f53\u793e\u306e\u5168\u88fd\u54c1\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/cnkuangya.com\/ja\/dc-surge-protection-devices\/\">\u76f4\u6d41\u30b5\u30fc\u30b8\u4fdd\u8b77\u88c5\u7f6e<\/a> \u56fd\u969b\u898f\u683c\u306b\u9069\u5408\u3057\u3001\u91cd\u8981\u306a\u96fb\u6c17\u30a4\u30f3\u30d5\u30e9\u3092\u4fdd\u8b77\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u304a\u5ba2\u69d8\u306eDC\u30b7\u30b9\u30c6\u30e0\u306b\u6700\u9069\u306a\u4fdd\u8b77\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u7279\u5316\u3057\u305f\u63a8\u5968\u4e8b\u9805\u3084\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30b5\u30dd\u30fc\u30c8\u306b\u3064\u3044\u3066\u306f\u3001\u5f53\u793e\u306e\u6280\u8853\u30c1\u30fc\u30e0\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\u95a2\u9023\u8a18\u4e8b<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/cnkuangya.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/ac-vs-dc-surge-protection\/\">AC vs DC\u30b5\u30fc\u30b8\u4fdd\u8b77\uff1a\u5b8c\u5168\u6bd4\u8f03\u30ac\u30a4\u30c9<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/cnkuangya.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/solar-pv-protection-guide\/\">\u592a\u967d\u5149\u767a\u96fb\u30b7\u30b9\u30c6\u30e0\u306e\u4fdd\u8b77\uff1a\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3068\u6a19\u6e96<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/cnkuangya.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/lightning-protection-renewable-energy\/\">\u518d\u751f\u53ef\u80fd\u30a8\u30cd\u30eb\u30ae\u30fc\u30b7\u30b9\u30c6\u30e0\u306e\u96f7\u4fdd\u8b77<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/cnkuangya.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/iec-61643-31-standard\/\">DC SPD\u306eIEC 61643-31\u898f\u683c\u3092\u7406\u89e3\u3059\u308b<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/cnkuangya.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/bess-protection-strategies\/\">\u84c4\u96fb\u6c60\u30b7\u30b9\u30c6\u30e0\u4fdd\u8b77\u6226\u7565<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>In modern electrical infrastructure, direct current (DC) systems are becoming increasingly prevalent\u2014from solar photovoltaic installations and battery energy storage systems to telecommunications networks and electric vehicle charging stations. However, these DC systems face a critical vulnerability: transient voltage surges caused by lightning strikes, switching operations, and grid disturbances. A single unprotected surge event can destroy sensitive electronics, halt operations, and result in costly downtime. This is where DC surge protection devices (DC SPDs) become essential safeguards for your electrical infrastructure. This comprehensive guide explores everything you need to know about DC surge protection devices\u2014from their fundamental working principles and various types to real-world applications and selection criteria. Whether you&#8217;re designing [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":2529,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[],"class_list":["post-2528","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-surge-protection-lightning-safety"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/posts\/2528","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/comments?post=2528"}],"version-history":[{"count":1,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/posts\/2528\/revisions"}],"predecessor-version":[{"id":2532,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/posts\/2528\/revisions\/2532"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/media\/2529"}],"wp:attachment":[{"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/media?parent=2528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/categories?post=2528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/tags?post=2528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}