{"id":4376,"date":"2026-09-01T10:44:59","date_gmt":"2026-09-01T02:44:59","guid":{"rendered":"https:\/\/cnkuangya.com\/?p=4376"},"modified":"2026-09-01T10:45:03","modified_gmt":"2026-09-01T02:45:03","slug":"dc-spd-class-i-class-ii-and-class-iii-explained-a-practical-guide-to-pv-surge-protection","status":"publish","type":"post","link":"https:\/\/cnkuangya.com\/ar\/blog\/dc-spd-class-i-class-ii-and-class-iii-explained-a-practical-guide-to-pv-surge-protection\/","title":{"rendered":"\u0634\u0631\u062d \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 (DC SPD) \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u0623\u0648\u0644\u0649 \u0648\u0627\u0644\u062b\u0627\u0646\u064a\u0629 \u0648\u0627\u0644\u062b\u0627\u0644\u062b\u0629: \u062f\u0644\u064a\u0644 \u0639\u0645\u0644\u064a \u0644\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0641\u064a \u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 (PV)"},"content":{"rendered":"<h2>\u062f\u0644\u064a\u0644 \u0639\u0645\u0644\u064a \u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u0623\u0648\u0644\u0649 \u0648\u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629 \u0648\u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0644\u062b\u0629<\/h2>\n<p><a href=\"https:\/\/cnkuangya.com\/ar\/dc-spd\/\">\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 (SPDs)<\/a> \u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u0641\u064a \u062c\u0627\u0646\u0628 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 (DC) \u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 \u0644\u0644\u062d\u062f \u0645\u0646 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0632\u0627\u0626\u062f \u0627\u0644\u0639\u0627\u0628\u0631 \u0648\u062a\u0635\u0631\u064a\u0641 \u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 \u0642\u0628\u0644 \u0623\u0646 \u064a\u062a\u0633\u0628\u0628 \u0641\u064a \u062a\u0644\u0641 \u0627\u0644\u0639\u0648\u0627\u0643\u0633\u060c \u0648\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u0645\u0631\u0627\u0642\u0628\u0629\u060c \u0648\u0635\u0646\u0627\u062f\u064a\u0642 \u0627\u0644\u062a\u062c\u0645\u064a\u0639\u060c \u0648\u063a\u064a\u0631\u0647\u0627 \u0645\u0646 \u0627\u0644\u0645\u0643\u0648\u0646\u0627\u062a \u0627\u0644\u062d\u0633\u0627\u0633\u0629. \u0648\u0645\u0639 \u0630\u0644\u0643\u060c \u0641\u0625\u0646 \u0639\u0644\u0627\u0645\u0627\u062a \u0645\u062b\u0644 <strong>\u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u0623\u0648\u0644\u0649<\/strong>, <strong>\u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629<\/strong>, <strong>\u0641\u064a<\/strong>, <strong>\u0625\u064a\u0645\u0627\u0643\u0633<\/strong>, <strong>\u0644\u0623\u0639\u0644\u0649<\/strong> \u0648 <strong>\u062a\u064a\u0627\u0631 \u0627\u0644\u0642\u0635\u0631 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a (Iscpv)<\/strong> \u063a\u0627\u0644\u0628\u0627\u064b \u0645\u0627 \u064a\u0633\u0627\u0621 \u0641\u0647\u0645\u0647\u0627.<\/p>\n<p>\u064a\u0634\u0631\u062d \u0647\u0630\u0627 \u0627\u0644\u062f\u0644\u064a\u0644 \u0641\u0626\u0627\u062a \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPD) \u0644\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 - \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u0623\u0648\u0644\u0649 \u0648\u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629 \u0648\u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0644\u062b\u0629 - \u0648\u064a\u0648\u0636\u062d \u0643\u064a\u0641\u064a\u0629 \u062a\u0641\u0633\u064a\u0631 \u0644\u0648\u062d\u0629 \u0628\u064a\u0627\u0646\u0627\u062a \u0646\u0645\u0648\u0630\u062c\u064a\u0629 \u0644\u062c\u0647\u0627\u0632 \u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0644\u0646\u0638\u0627\u0645 \u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a \u0628\u062c\u0647\u062f 1000 \u0641\u0648\u0644\u062a \u062a\u064a\u0627\u0631 \u0645\u0633\u062a\u0645\u0631.<\/p>\n<hr \/>\n<h2>\u0627\u0644\u0648\u062c\u0628\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n<ul>\n<li>\u062a\u0635\u0641 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u0623\u0648\u0644\u0649 \u0648\u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629 \u0648\u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0644\u062b\u0629 \u0641\u0626\u0627\u062a \u0627\u062e\u062a\u0628\u0627\u0631 \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631\u060c \u0648\u0644\u064a\u0633 \u062f\u0631\u062c\u0627\u062a \u062c\u0648\u062f\u0629 \u0627\u0644\u0645\u0646\u062a\u062c.<\/li>\n<li>\u062a\u0631\u062a\u0628\u0637 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u0623\u0648\u0644\u0649 \u0639\u0645\u0648\u0645\u0627\u064b \u0628\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 1 \u0648\u0634\u0643\u0644 \u0645\u0648\u062c\u0629 \u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 10\/350 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629.<\/li>\n<li>\u062a\u0631\u062a\u0628\u0637 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629 \u0639\u0645\u0648\u0645\u0627\u064b \u0628\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2 \u0648\u0634\u0643\u0644 \u0645\u0648\u062c\u0629 \u062a\u064a\u0627\u0631 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062c\u0647\u062f 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629.<\/li>\n<li>\u062a\u0631\u062a\u0628\u0637 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0644\u062b\u0629 (Class III) \u0639\u0645\u0648\u0645\u0627\u064b \u0628\u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u062f\u0642\u064a\u0642\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 3 \u0648\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0645\u0648\u062c\u0629 \u0627\u0644\u0645\u0631\u0643\u0628\u0629.<\/li>\n<li>\u062a\u0635\u0641 \u0627\u0644\u0631\u0645\u0648\u0632 Ucpv \u0648 In \u0648 Imax \u0648 Up \u0648 Iscpv \u062e\u0635\u0627\u0626\u0635 \u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u0645\u062e\u062a\u0644\u0641\u0629 \u0648\u0644\u0627 \u064a\u0645\u0643\u0646 \u062a\u0628\u062f\u064a\u0644\u0647\u0627 \u0628\u0628\u0639\u0636\u0647\u0627 \u0627\u0644\u0628\u0639\u0636.<\/li>\n<li>\u0644\u0627 \u064a\u0646\u0628\u063a\u064a \u0627\u0644\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 \u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPD) \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629 \u062a\u0644\u0642\u0627\u0626\u064a\u0627\u064b \u0639\u0644\u0649 \u0623\u0646\u0647 \u062d\u0645\u0627\u064a\u0629 \u0636\u062f \u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 \u0627\u0644\u0645\u0628\u0627\u0634\u0631.<\/li>\n<\/ul>\n<figure><img decoding=\"async\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/08\/spd-class-comparison-line-drawing.png\" alt=\"Line drawing comparing Class I, Class II and Class III DC SPD test waveforms and protection stages\" \/><figcaption>\u064a\u062a\u0645 \u0627\u062e\u062a\u0628\u0627\u0631 \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPD) \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u0623\u0648\u0644\u0649 \u0648\u0627\u0644\u062b\u0627\u0646\u064a\u0629 \u0648\u0627\u0644\u062b\u0627\u0644\u062b\u0629 \u0644\u0628\u064a\u0626\u0627\u062a \u0632\u064a\u0627\u062f\u0629 \u062a\u064a\u0627\u0631 \u0645\u062e\u062a\u0644\u0641\u0629 \u0648\u0645\u0631\u0627\u062d\u0644 \u062a\u0631\u0643\u064a\u0628 \u0645\u062a\u0646\u0648\u0639\u0629.<\/figcaption><\/figure>\n<hr \/>\n<h2>\u0645\u0627\u0630\u0627 \u062a\u0639\u0646\u064a \u0641\u0626\u0627\u062a \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPD)\u061f<\/h2>\n<p>\u0643\u0644\u0645\u0629 <strong>\u0641\u0626\u0629 (Class)<\/strong> \u0639\u0644\u0649 \u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPD) \u062a\u0634\u064a\u0631 \u0639\u0627\u062f\u0629\u064b \u0625\u0644\u0649 \u062a\u0635\u0646\u064a\u0641 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631. \u0648\u0647\u0630\u0627 \u0644\u0627 \u064a\u0639\u0646\u064a \u0623\u0646 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u0623\u0648\u0644\u0649 \u0647\u064a \u0645\u0646\u062a\u062c \u0639\u0627\u0644\u064a \u0627\u0644\u062c\u0648\u062f\u0629 \u0648\u0623\u0646 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629 \u0647\u064a \u0645\u0646\u062a\u062c \u0623\u0642\u0644 \u062c\u0648\u062f\u0629. \u0643\u0645\u0627 \u0623\u0646\u0647\u0627 \u0644\u0627 \u062a\u0635\u0641 \u0641\u0626\u0629 \u0627\u0644\u0639\u0632\u0644 \u0623\u0648 \u062a\u0635\u0646\u064a\u0641 \u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u063a\u0644\u0627\u0641 (IP).<\/p>\n<table>\n<thead>\n<tr>\n<th>\u0641\u0626\u0629 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631<\/th>\n<th>\u0627\u0644\u062a\u0633\u0645\u064a\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629 \u0644\u0644\u0645\u0646\u062a\u062c<\/th>\n<th>\u0634\u0643\u0644 \u0645\u0648\u062c\u0629 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0631\u0626\u064a\u0633\u064a<\/th>\n<th>\u0627\u0644\u062f\u0648\u0631 \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u0623\u0648\u0644\u0649<\/td>\n<td>\u0627\u0644\u0646\u0648\u0639 1<\/td>\n<td>\u0646\u0628\u0636\u0629 \u062a\u064a\u0627\u0631 10\/350 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629<\/td>\n<td>\u062a\u0641\u0631\u064a\u063a \u062a\u064a\u0627\u0631 \u0627\u0644\u0628\u0631\u0642 \u0627\u0644\u062c\u0632\u0626\u064a<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629<\/td>\n<td>\u0627\u0644\u0646\u0648\u0639 2<\/td>\n<td>\u0646\u0628\u0636\u0629 \u062a\u064a\u0627\u0631 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629<\/td>\n<td>\u0627\u0644\u0628\u0631\u0642 \u0627\u0644\u0645\u0633\u062a\u062d\u062b \u0648\u0627\u0631\u062a\u0641\u0627\u0639\u0627\u062a \u062c\u0647\u062f \u0627\u0644\u062a\u0628\u062f\u064a\u0644<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0644\u062b\u0629<\/td>\n<td>\u0627\u0644\u0646\u0648\u0639 3<\/td>\n<td>\u0645\u0648\u062c\u0629 \u0645\u0631\u0643\u0628\u0629<\/td>\n<td>\u062d\u0645\u0627\u064a\u0629 \u062f\u0642\u064a\u0642\u0629 \u0628\u0627\u0644\u0642\u0631\u0628 \u0645\u0646 \u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u062d\u0633\u0627\u0633\u0629<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u0623\u0648\u0644\u0649 + \u0627\u0644\u062b\u0627\u0646\u064a\u0629 (Class I+II)<\/td>\n<td>\u0627\u0644\u0646\u0648\u0639 1+2<\/td>\n<td>10\/350 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629 \u0648 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629<\/td>\n<td>\u062d\u0645\u0627\u064a\u0629 \u0645\u062f\u0645\u062c\u0629 \u0645\u0646 \u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 \u0648\u0627\u0644\u0627\u0646\u062f\u0641\u0627\u0639\u0627\u062a \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u064a\u062c\u0628 \u0639\u062f\u0645 \u0627\u0644\u062e\u0644\u0637 \u0628\u064a\u0646 \u0641\u0626\u0627\u062a \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0627\u0646\u062f\u0641\u0627\u0639\u0627\u062a (SPD) \u0647\u0630\u0647 \u0648\u0641\u0626\u0627\u062a \u0646\u0638\u0627\u0645 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 (LPS) I \u0648 II \u0648 III \u0648 IV. \u064a\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u0646\u0638\u0627\u0645\u0627\u0646 \u0623\u0631\u0642\u0627\u0645\u0627\u064b \u0631\u0648\u0645\u0627\u0646\u064a\u0629 \u0645\u062a\u0634\u0627\u0628\u0647\u0629 \u0648\u0644\u0643\u0646\u0647\u0645\u0627 \u064a\u0635\u0641\u0627\u0646 \u0645\u0648\u0636\u0648\u0639\u0627\u062a \u0645\u062e\u062a\u0644\u0641\u0629.<\/p>\n<h2>\u062c\u0647\u0627\u0632 \u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0627\u0646\u062f\u0641\u0627\u0639\u0627\u062a (SPD) \u0644\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u0623\u0648\u0644\u0649 \/ \u0627\u0644\u0646\u0648\u0639 1<\/h2>\n<p>\u062a\u0645 \u062a\u0635\u0645\u064a\u0645 \u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0627\u0646\u062f\u0641\u0627\u0639\u0627\u062a (SPD) \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u0623\u0648\u0644\u0649 \u0623\u0648 \u0627\u0644\u0646\u0648\u0639 1 \u0644\u0644\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 \u0645\u0643\u0648\u0646\u0627\u062a \u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 \u0630\u0627\u062a \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629. \u0634\u0643\u0644 \u0645\u0648\u062c\u0629 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0631\u0626\u064a\u0633\u064a \u0644\u0647 \u0647\u0648 \u0639\u0627\u062f\u0629 10\/350 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629: \u062d\u064a\u062b \u064a\u0631\u062a\u0641\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0628\u0633\u0631\u0639\u0629 \u062b\u0645 \u064a\u062a\u0644\u0627\u0634\u0649 \u0639\u0644\u0649 \u0645\u062f\u0649 \u0641\u062a\u0631\u0629 \u0637\u0648\u064a\u0644\u0629 \u0646\u0633\u0628\u064a\u0627\u064b\u060c \u0645\u0645\u0627 \u064a\u0645\u0646\u062d \u0627\u0644\u0646\u0628\u0636\u0629 \u0637\u0627\u0642\u0629 \u0623\u0639\u0644\u0649 \u0628\u0643\u062b\u064a\u0631 \u0645\u0646 \u0627\u0646\u062f\u0641\u0627\u0639 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629 \u0627\u0644\u062a\u0642\u0644\u064a\u062f\u064a \u0627\u0644\u0630\u064a \u0644\u0647 \u0646\u0641\u0633 \u0630\u0631\u0648\u0629 \u0627\u0644\u062a\u064a\u0627\u0631.<\/p>\n<p>\u064a\u062c\u0628 \u062a\u0642\u064a\u064a\u0645 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 1 \u0623\u0648 \u0627\u0644\u0646\u0648\u0639 1+2 \u0639\u0646\u062f \u0648\u062c\u0648\u062f \u0646\u0638\u0627\u0645 \u062d\u0645\u0627\u064a\u0629 \u062e\u0627\u0631\u062c\u064a \u0645\u0646 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 \u0641\u064a \u0645\u0646\u0634\u0623\u0629 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629\u060c \u0623\u0648 \u0639\u0646\u062f\u0645\u0627 \u0644\u0627 \u064a\u0645\u0643\u0646 \u0627\u0644\u062d\u0641\u0627\u0638 \u0639\u0644\u0649 \u0645\u0633\u0627\u0641\u0629 \u0627\u0644\u0641\u0635\u0644 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629\u060c \u0623\u0648 \u0639\u0646\u062f\u0645\u0627 \u0642\u062f \u064a\u062f\u062e\u0644 \u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 \u0625\u0644\u0649 \u0627\u0644\u062a\u0631\u0643\u064a\u0628\u0627\u062a \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u0639\u0628\u0631 \u062d\u062f\u0648\u062f \u0645\u0646\u0637\u0642\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0635\u0648\u0627\u0639\u0642.<\/p>\n<p>\u0627\u0644\u0645\u0639\u0644\u0645\u0629 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0644\u0644\u0646\u0648\u0639 1 \u0647\u064a \u0639\u0627\u062f\u0629\u064b <strong>\u0625\u064a\u0645\u0628<\/strong>. \u0625\u0646 \u0642\u064a\u0645\u0629 Imax \u0627\u0644\u0643\u0628\u064a\u0631\u0629 \u0648\u062d\u062f\u0647\u0627 \u0644\u0627 \u062a\u062b\u0628\u062a \u0623\u0646 \u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 (SPD) \u0645\u0646\u0627\u0633\u0628 \u0644\u0644\u0639\u0645\u0644 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 1\u060c \u0644\u0623\u0646 Imax \u062a\u0631\u062a\u0628\u0637 \u0639\u0627\u062f\u0629\u064b \u0628\u0634\u0643\u0644 \u0645\u0648\u062c\u0629 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629.<\/p>\n<h2>\u062c\u0647\u0627\u0632 \u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 (SPD) \u0644\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629 \/ \u0627\u0644\u0646\u0648\u0639 2<\/h2>\n<p>\u062a\u062a\u0648\u0627\u0641\u0642 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629 \u0639\u0645\u0648\u0645\u064b\u0627 \u0645\u0639 \u062c\u0647\u0627\u0632 \u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2 \u0627\u0644\u0630\u064a \u062a\u0645 \u0627\u062e\u062a\u0628\u0627\u0631\u0647 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0634\u0643\u0644 \u0645\u0648\u062c\u0629 \u062a\u064a\u0627\u0631 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629. \u0648\u0647\u064a \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u0623\u0643\u062b\u0631 \u0634\u064a\u0648\u0639\u064b\u0627 \u0627\u0644\u0645\u0633\u062a\u062e\u062f\u0645\u0629 \u0644\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0635\u0648\u0627\u0639\u0642 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u062d\u062b\u0629 \u0648\u0639\u0627\u0628\u0631\u0627\u062a \u0627\u0644\u062a\u0628\u062f\u064a\u0644 \u0641\u064a <a href=\"https:\/\/cnkuangya.com\/ar\/product\/type-2-pv-surge-protective-device\/\">\u0635\u0646\u0627\u062f\u064a\u0642 \u0627\u0644\u062a\u062c\u0645\u064a\u0639 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629<\/a>, \u0645\u0639\u062f\u0627\u062a \u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0648\u0645\u062f\u0627\u062e\u0644 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0644\u0644\u0645\u062d\u0648\u0644\u0627\u062a.<\/p>\n<p>\u064a\u0645\u0643\u0646 \u0623\u064a\u0636\u064b\u0627 \u062a\u0631\u0643\u064a\u0628 \u062c\u0647\u0627\u0632 \u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2 \u0641\u064a \u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u062a\u064a\u0627\u0631 \u0628\u0639\u062f \u062c\u0647\u0627\u0632 \u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 1 \u0643\u062c\u0632\u0621 \u0645\u0646 \u0646\u0638\u0627\u0645 \u062d\u0645\u0627\u064a\u0629 \u0645\u0646\u0633\u0642. \u0644\u0627 \u064a\u0646\u0628\u063a\u064a \u062a\u0633\u0648\u064a\u0642\u0647 \u0643\u062c\u0647\u0627\u0632 \u0645\u0627\u0646\u0639 \u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 \u0627\u0644\u0645\u0628\u0627\u0634\u0631 \u0645\u0627 \u0644\u0645 \u064a\u062a\u0645 \u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0645\u0646\u062a\u062c \u0648\u0627\u0639\u062a\u0645\u0627\u062f\u0647 \u0623\u064a\u0636\u064b\u0627 \u0643\u0646\u0648\u0639 1 \u0623\u0648 \u0646\u0648\u0639 1+2.<\/p>\n<h2>\u062c\u0647\u0627\u0632 \u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 (SPD) \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0644\u062b\u0629 \/ \u0627\u0644\u0646\u0648\u0639 3<\/h2>\n<p>\u062a\u0648\u0641\u0631 \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPDs) \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0644\u062b\u0629 (Class III) \u0623\u0648 \u0627\u0644\u0646\u0648\u0639 3 \u062d\u0645\u0627\u064a\u0629 \u062f\u0642\u064a\u0642\u0629 \u0628\u0627\u0644\u0642\u0631\u0628 \u0645\u0646 \u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u062d\u0633\u0627\u0633\u0629. \u0648\u0639\u0627\u062f\u0629 \u0645\u0627 \u064a\u062a\u0645 \u062a\u0642\u064a\u064a\u0645\u0647\u0627 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u0648\u0644\u062f \u0645\u0648\u062c\u0629 \u0645\u0631\u0643\u0628\u0629 \u0630\u064a \u0634\u0643\u0644 \u0645\u0648\u062c\u0629 \u062c\u0647\u062f \u062f\u0627\u0626\u0631\u0629 \u0645\u0641\u062a\u0648\u062d\u0629 1.2\/50 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629 \u0648\u0634\u0643\u0644 \u0645\u0648\u062c\u0629 \u062a\u064a\u0627\u0631 \u062f\u0627\u0626\u0631\u0629 \u0642\u0635\u0631 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629.<\/p>\n<p>\u062a\u0639\u0645\u0644 \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u0646\u0648\u0639 3 \u0639\u0627\u062f\u0629\u064b \u0628\u0627\u0644\u062a\u0646\u0633\u064a\u0642 \u0645\u0639 \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 1 \u0623\u0648 \u0627\u0644\u0646\u0648\u0639 2 \u0627\u0644\u0645\u0648\u062c\u0648\u062f\u0629 \u0641\u064a \u0627\u0644\u0645\u0646\u0628\u0639. \u0648\u0647\u064a \u063a\u064a\u0631 \u0645\u0635\u0645\u0645\u0629 \u0644\u0627\u0645\u062a\u0635\u0627\u0635 \u0643\u0627\u0645\u0644 \u0637\u0627\u0642\u0629 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0648\u0627\u0631\u062f\u0629 \u0628\u0645\u0641\u0631\u062f\u0647\u0627.<\/p>\n<hr \/>\n<h2>\u0643\u064a\u0641\u064a\u0629 \u0642\u0631\u0627\u0621\u0629 \u0644\u0648\u062d\u0629 \u0628\u064a\u0627\u0646\u0627\u062a \u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPD) \u0628\u062c\u0647\u062f 1000 \u0641\u0648\u0644\u062a \u062a\u064a\u0627\u0631 \u0645\u0633\u062a\u0645\u0631<\/h2>\n<figure><img decoding=\"async\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/08\/dc-spd-nameplate-parameters-line-drawing.png\" alt=\"Line drawing explaining Ucpv, Class II, In, Imax, Up and Iscpv on a 1000 V DC SPD nameplate\" \/><figcaption>\u062a\u062c\u064a\u0628 \u0643\u0644 \u0642\u064a\u0645\u0629 \u0639\u0644\u0649 \u0644\u0648\u062d\u0629 \u0628\u064a\u0627\u0646\u0627\u062a \u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (DC SPD) \u0639\u0644\u0649 \u0633\u0624\u0627\u0644 \u0645\u062e\u062a\u0644\u0641 \u064a\u062a\u0639\u0644\u0642 \u0628\u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0623\u0648 \u0627\u0644\u0633\u0644\u0627\u0645\u0629.<\/figcaption><\/figure>\n<h3>Ucpv: 1000 \u0641\u0648\u0644\u062a \u062a\u064a\u0627\u0631 \u0645\u0633\u062a\u0645\u0631<\/h3>\n<p><strong>Ucpv<\/strong> \u0647\u0648 \u0623\u0642\u0635\u0649 \u062c\u0647\u062f \u062a\u0634\u063a\u064a\u0644 \u0645\u0633\u062a\u0645\u0631 \u0644\u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPD) \u0627\u0644\u062e\u0627\u0635 \u0628\u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629. \u0648\u0647\u0648 \u0623\u0639\u0644\u0649 \u062c\u0647\u062f \u062a\u064a\u0627\u0631 \u0645\u0633\u062a\u0645\u0631 \u064a\u0645\u0643\u0646 \u062a\u0637\u0628\u064a\u0642\u0647 \u0628\u0634\u0643\u0644 \u0645\u0633\u062a\u0645\u0631 \u0639\u0644\u0649 \u0627\u0644\u062c\u0647\u0627\u0632 \u0648\u0641\u0642\u0627\u064b \u0644\u0644\u0634\u0631\u0648\u0637 \u0627\u0644\u062a\u064a \u0623\u0639\u0644\u0646\u062a\u0647\u0627 \u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629.<\/p>\n<p>\u064a\u062c\u0628 \u0623\u0644\u0627 \u062a\u0643\u0648\u0646 \u0642\u064a\u0645\u0629 Ucpv \u0627\u0644\u0645\u062e\u062a\u0627\u0631\u0629 \u0623\u0642\u0644 \u0645\u0646 \u0623\u0642\u0635\u0649 \u062c\u0647\u062f \u0644\u0644\u062f\u0627\u0626\u0631\u0629 \u0627\u0644\u0645\u0641\u062a\u0648\u062d\u0629 \u0644\u0645\u0635\u0641\u0648\u0641\u0629 \u0627\u0644\u0623\u0644\u0648\u0627\u062d \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 \u0628\u0639\u062f \u0627\u0644\u062a\u0635\u062d\u064a\u062d \u0644\u0623\u062f\u0646\u0649 \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0645\u062a\u0648\u0642\u0639\u0629. \u064a\u0631\u062a\u0641\u0639 \u062c\u0647\u062f \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0627\u0644\u0645\u0641\u062a\u0648\u062d\u0629 (Voc) \u0644\u0644\u0648\u062d\u062f\u0629 \u0645\u0639 \u0627\u0646\u062e\u0641\u0627\u0636 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629\u060c \u0644\u0630\u0627 \u0641\u0625\u0646 \u0627\u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u0645\u0648\u0635\u0648\u0641 \u0628\u0640 \u201c1000 \u0641\u0648\u0644\u062a \u062a\u064a\u0627\u0631 \u0645\u0633\u062a\u0645\u0631\u201d \u0644\u0627 \u064a\u0645\u0643\u0646\u0647 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062c\u0647\u0627\u0632 \u062d\u0645\u0627\u064a\u0629 (SPD) \u0628\u0642\u064a\u0645\u0629 Ucpv \u062a\u0628\u0644\u063a 1000 \u0641\u0648\u0644\u062a \u062a\u0644\u0642\u0627\u0626\u064a\u0627\u064b \u062f\u0648\u0646 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0623\u0642\u0635\u0649 \u062c\u0647\u062f \u0641\u064a \u0627\u0644\u0637\u0642\u0633 \u0627\u0644\u0628\u0627\u0631\u062f.<\/p>\n<h3>\u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629<\/h3>\n<p>\u062a\u0634\u064a\u0631 \u0647\u0630\u0647 \u0627\u0644\u0639\u0644\u0627\u0645\u0629 \u0625\u0644\u0649 \u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629 (Class II) \u0648\u0639\u0627\u062f\u0629 \u0645\u0627 \u062a\u0639\u0646\u064a \u062a\u0637\u0628\u064a\u0642\u0627\u064b \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2. \u0648\u0647\u064a \u062a\u0639\u0627\u0644\u062c \u0628\u0634\u0643\u0644 \u0623\u0633\u0627\u0633\u064a \u0627\u0644\u0632\u064a\u0627\u062f\u0627\u062a \u0627\u0644\u0646\u0627\u062a\u062c\u0629 \u0639\u0646 \u0627\u0644\u062d\u062b \u0648\u0627\u0644\u062a\u0628\u062f\u064a\u0644 \u0648\u0627\u0644\u0645\u0645\u062b\u0644\u0629 \u0628\u0634\u0643\u0644 \u0645\u0648\u062c\u0629 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629. \u0648\u0647\u064a \u0644\u0627 \u062a\u0635\u0641 \u062c\u0648\u062f\u0629 \u0627\u0644\u0645\u0646\u062a\u062c \u0623\u0648 \u0642\u062f\u0631\u0629 \u062a\u062d\u0645\u0644 \u062f\u0627\u0626\u0631\u0629 \u0627\u0644\u0642\u0635\u0631.<\/p>\n<h3>In: 20 kA<\/h3>\n<p><strong>\u0641\u064a<\/strong> \u0647\u0648 \u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0641\u0631\u064a\u063a \u0627\u0644\u0627\u0633\u0645\u064a\u060c \u0648\u064a\u064f\u062d\u062f\u062f \u0639\u0627\u062f\u0629\u064b \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0634\u0643\u0644 \u0645\u0648\u062c\u0629 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629 \u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPD) \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2. \u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0647\u0630\u0627 \u0627\u0644\u062a\u064a\u0627\u0631 \u0641\u064a \u062a\u0633\u0644\u0633\u0644 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u060c \u0648\u064a\u064f\u0639\u062f \u0645\u0624\u0634\u0631\u0627\u064b \u0645\u0647\u0645\u0627\u064b \u0639\u0644\u0649 \u0627\u0644\u0642\u062f\u0631\u0629 \u0627\u0644\u0645\u062a\u0643\u0631\u0631\u0629 \u0644\u062a\u062d\u0645\u0644 \u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u062f\u0645\u0629 \u0641\u064a \u0638\u0644 \u0638\u0631\u0648\u0641 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0645\u0630\u0643\u0648\u0631\u0629.<\/p>\n<h3>Imax: 40 kA<\/h3>\n<p><strong>\u0625\u064a\u0645\u0627\u0643\u0633<\/strong> \u0647\u0648 \u0623\u0642\u0635\u0649 \u062a\u064a\u0627\u0631 \u062a\u0641\u0631\u064a\u063a\u060c \u0648\u064a\u0631\u062a\u0628\u0637 \u0639\u0627\u062f\u0629\u064b \u0628\u0634\u0643\u0644 \u0627\u0644\u0645\u0648\u062c\u0629 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629. \u0648\u0647\u0648 \u0642\u064a\u0645\u0629 \u062a\u0641\u0631\u064a\u063a \u0642\u0635\u0648\u0649 \u0623\u0639\u0644\u0649\u060c \u0648\u0644\u0627 \u064a\u062c\u0628 \u062a\u0641\u0633\u064a\u0631\u0647 \u0639\u0644\u0649 \u0623\u0646\u0647 \u062a\u064a\u0627\u0631 \u064a\u0645\u0643\u0646 \u0644\u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPD) \u062a\u062d\u0645\u0644\u0647 \u0628\u0634\u0643\u0644 \u0645\u062a\u0643\u0631\u0631.<\/p>\n<p>\u0644\u0627 \u064a\u062c\u0628 \u0645\u0642\u0627\u0631\u0646\u0629 In \u0648 Imax \u0645\u0628\u0627\u0634\u0631\u0629 \u0628\u0640 Iimp \u0645\u0627 \u0644\u0645 \u064a\u062a\u0645 \u0623\u062e\u0630 \u0623\u0634\u0643\u0627\u0644 \u0627\u0644\u0645\u0648\u062c\u0627\u062a \u0627\u0644\u0645\u0631\u062a\u0628\u0637\u0629 \u0628\u0647\u0627 \u0641\u064a \u0627\u0644\u0627\u0639\u062a\u0628\u0627\u0631. \u062a\u062d\u062a\u0648\u064a \u0646\u0628\u0636\u0629 \u062a\u064a\u0627\u0631 \u0627\u0644\u0628\u0631\u0642 10\/350 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629 \u0639\u0644\u0649 \u0637\u0627\u0642\u0629 \u0623\u0643\u0628\u0631 \u0628\u0643\u062b\u064a\u0631 \u0645\u0646 \u0646\u0628\u0636\u0629 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629 \u0628\u0646\u0641\u0633 \u0642\u064a\u0645\u0629 \u0627\u0644\u0630\u0631\u0648\u0629.<\/p>\n<h3>Up: 4.0 kV<\/h3>\n<p><strong>\u0644\u0623\u0639\u0644\u0649<\/strong> \u0647\u0648 \u0645\u0633\u062a\u0648\u0649 \u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u062c\u0647\u062f. \u0648\u0647\u0648 \u064a\u0634\u064a\u0631 \u0625\u0644\u0649 \u0627\u0644\u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0630\u064a \u064a\u062d\u062f \u0639\u0646\u062f\u0647 \u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPD) \u0627\u0644\u062c\u0647\u062f \u0641\u064a \u0638\u0644 \u0638\u0631\u0648\u0641 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0645\u062d\u062f\u062f\u0629. \u064a\u062c\u0628 \u062a\u0646\u0633\u064a\u0642 Up \u0645\u0639 \u062c\u0647\u062f \u062a\u062d\u0645\u0644 \u0627\u0644\u0646\u0628\u0636 \u0644\u0644\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u0645\u062d\u0645\u064a\u0629.<\/p>\n<p>\u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0624\u062f\u064a \u0627\u0646\u062e\u0641\u0627\u0636 Up \u0625\u0644\u0649 \u062a\u062d\u0633\u064a\u0646 \u0647\u0627\u0645\u0634 \u0627\u0644\u062d\u0645\u0627\u064a\u0629\u060c \u0648\u0644\u0643\u0646 \u0644\u0627 \u064a\u0645\u0643\u0646 \u062a\u0642\u064a\u064a\u0645 Up \u0628\u0645\u0641\u0631\u062f\u0647. \u064a\u062c\u0628 \u0623\u0646 \u064a\u0638\u0644 Ucpv \u0645\u0631\u062a\u0641\u0639\u0627\u064b \u0628\u0645\u0627 \u064a\u0643\u0641\u064a \u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 (PV)\u060c \u0648\u064a\u062c\u0628 \u062a\u0642\u0644\u064a\u0644 \u0637\u0648\u0644 \u0645\u0648\u0635\u0644 \u0627\u0644\u062a\u062b\u0628\u064a\u062a \u0644\u0623\u0646 \u062d\u062b \u0627\u0644\u0645\u0648\u0635\u0644 \u064a\u0636\u064a\u0641 \u062c\u0647\u062f\u0627\u064b \u0623\u062b\u0646\u0627\u0621 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631.<\/p>\n<h3>Iscpv: 10 kA<\/h3>\n<p><strong>\u062a\u064a\u0627\u0631 \u0627\u0644\u0642\u0635\u0631 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a (Iscpv)<\/strong> is the PV short-circuit current rating of the SPD. It is not a surge-discharge rating. It describes the prospective PV short-circuit current for which the SPD and its disconnection arrangement are suitable under the manufacturer&#8217;s declared conditions.<\/p>\n<p>\u0647\u0630\u0647 \u0627\u0644\u0642\u064a\u0645\u0629 \u0645\u0647\u0645\u0629 \u0628\u0634\u0643\u0644 \u062e\u0627\u0635 \u0641\u064a \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 \u0630\u0627\u062a \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 (DC)\u060c \u0644\u0623\u0646 \u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPD) \u0641\u064a \u062d\u0627\u0644\u0629 \u062a\u0639\u0637\u0644\u0629 \u064a\u062c\u0628 \u0623\u0646 \u064a\u0641\u0635\u0644 \u0628\u0623\u0645\u0627\u0646 \u062f\u0648\u0646 \u0627\u0644\u062a\u0633\u0628\u0628 \u0641\u064a \u0642\u0648\u0633 \u0643\u0647\u0631\u0628\u0627\u0626\u064a \u062e\u0637\u064a\u0631 \u0644\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631.<\/p>\n<h3>5% \u2013 95% \u0631\u0637\u0648\u0628\u0629 \u0646\u0633\u0628\u064a\u0629<\/h3>\n<p>\u064a\u0635\u0641 \u0647\u0630\u0627 \u0639\u0627\u062f\u0629\u064b \u0646\u0637\u0627\u0642 \u0627\u0644\u0631\u0637\u0648\u0628\u0629 \u0627\u0644\u0646\u0633\u0628\u064a\u0629 \u0627\u0644\u0645\u0633\u0645\u0648\u062d \u0628\u0647. \u064a\u062c\u0628 \u0645\u0631\u0627\u062c\u0639\u0629 \u0648\u0631\u0642\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0643\u0627\u0645\u0644\u0629 \u0644\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0638\u0631\u0648\u0641 \u0645\u062b\u0644 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0641\u064a \u0628\u064a\u0626\u0629 \u063a\u064a\u0631 \u0645\u062a\u0643\u062b\u0641\u0629\u060c \u0648\u0627\u0644\u062a\u0622\u0643\u0644\u060c \u0648\u062a\u0643\u0648\u0646 \u0627\u0644\u062c\u0644\u064a\u062f\u060c \u0648\u0627\u0644\u0627\u0631\u062a\u0641\u0627\u0639 \u0639\u0646 \u0633\u0637\u062d \u0627\u0644\u0628\u062d\u0631.<\/p>\n<h3>-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +85 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/h3>\n<p>\u0647\u0630\u0627 \u0647\u0648 \u0646\u0637\u0627\u0642 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0645\u0639\u0644\u0646. \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u0645\u062b\u0628\u062a\u0629 \u062f\u0627\u062e\u0644 \u0635\u0646\u0627\u062f\u064a\u0642 \u0627\u0644\u062a\u062c\u0645\u064a\u0639 \u0627\u0644\u062e\u0627\u0631\u062c\u064a\u0629 \u0623\u0648 \u0627\u0644\u062d\u0627\u0648\u064a\u0627\u062a\u060c \u0642\u062f \u062a\u0643\u0648\u0646 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062f\u0627\u062e\u0644\u064a\u0629 \u0644\u0644\u062e\u0632\u0627\u0646\u0629 \u0623\u0639\u0644\u0649 \u0628\u0643\u062b\u064a\u0631 \u0645\u0646 \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0637\u0642\u0633 \u0627\u0644\u0645\u062d\u064a\u0637\u0629.<\/p>\n<h3>\u0644\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u062f\u0627\u062e\u0644\u064a \u0648\u062f\u0631\u062c\u0629 \u062d\u0645\u0627\u064a\u0629 IP20<\/h3>\n<p>\u062a\u0648\u0641\u0631 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 IP20 \u062d\u0645\u0627\u064a\u0629 \u0623\u0633\u0627\u0633\u064a\u0629 \u0636\u062f \u0645\u0644\u0627\u0645\u0633\u0629 \u0627\u0644\u0623\u0635\u0627\u0628\u0639 \u0648\u0628\u0639\u0636 \u0627\u0644\u0623\u062c\u0633\u0627\u0645 \u0627\u0644\u0635\u0644\u0628\u0629\u060c \u0648\u0644\u0643\u0646 \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u062b\u0627\u0646\u064a \u201c0\u201d \u064a\u0639\u0646\u064a \u0639\u062f\u0645 \u0648\u062c\u0648\u062f \u062d\u0645\u0627\u064a\u0629 \u0645\u0639\u0644\u0646\u0629 \u0636\u062f \u062f\u062e\u0648\u0644 \u0627\u0644\u0645\u0627\u0621. \u064a\u062c\u0628 \u0639\u062f\u0645 \u062a\u0639\u0631\u064a\u0636 \u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPD) \u0630\u0648 \u062a\u0635\u0646\u064a\u0641 IP20 \u0644\u0644\u0645\u0637\u0631 \u0628\u0634\u0643\u0644 \u0645\u0628\u0627\u0634\u0631. \u062a\u062a\u0637\u0644\u0628 \u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 \u0627\u0644\u062e\u0627\u0631\u062c\u064a\u0629 \u062d\u0627\u0648\u064a\u0629 \u0645\u0646\u0627\u0633\u0628\u0629 \u064a\u062a\u0645 \u0627\u062e\u062a\u064a\u0627\u0631\u0647\u0627 \u0648\u0641\u0642\u0627\u064b \u0644\u0644\u0638\u0631\u0648\u0641 \u0627\u0644\u0628\u064a\u0626\u064a\u0629.<\/p>\n<hr \/>\n<h2>\u0623\u064a\u0646 \u064a\u062a\u0645 \u062a\u0631\u0643\u064a\u0628 \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (DC SPDs) \u0641\u064a \u0646\u0638\u0627\u0645 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629\u061f<\/h2>\n<figure><img decoding=\"async\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/08\/pv-dc-spd-installation-line-drawing.png\" alt=\"Line drawing showing DC SPD locations at a PV combiner box and inverter input\" \/><figcaption>\u0642\u062f \u062a\u062a\u0637\u0644\u0628 \u0645\u0633\u0627\u0631\u0627\u062a \u0643\u0627\u0628\u0644\u0627\u062a \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0627\u0644\u0637\u0648\u064a\u0644\u0629 \u0623\u062c\u0647\u0632\u0629 \u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0646\u062f\u0641\u0627\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 (SPDs) \u0645\u0646\u0633\u0642\u0629 \u0639\u0646\u062f \u0637\u0631\u0641\u064a \u0627\u0644\u0645\u0635\u0641\u0648\u0641\u0629 \u0648\u0627\u0644\u0639\u0627\u0643\u0633.<\/figcaption><\/figure>\n<p>\u064a\u062a\u0645 \u062a\u0631\u0643\u064a\u0628 \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0646\u062f\u0641\u0627\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 (DC SPDs) \u0639\u0627\u062f\u0629\u064b \u0641\u064a \u0635\u0646\u0627\u062f\u064a\u0642 \u062a\u062c\u0645\u064a\u0639 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629 \u0648\u0628\u0627\u0644\u0642\u0631\u0628 \u0645\u0646 \u0645\u062f\u0627\u062e\u0644 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0644\u0644\u0639\u0627\u0643\u0633. \u064a\u0639\u062a\u0645\u062f \u0627\u0644\u0639\u062f\u062f \u0648\u0627\u0644\u0645\u0648\u0642\u0639 \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u0627\u0646 \u0639\u0644\u0649 \u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0646\u0638\u0627\u0645\u060c \u0648\u0645\u0633\u0627\u0631\u0627\u062a \u0627\u0644\u0643\u0627\u0628\u0644\u0627\u062a\u060c \u0648\u0645\u0641\u0647\u0648\u0645 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0635\u0648\u0627\u0639\u0642\u060c \u0648\u062a\u0631\u062a\u064a\u0628 \u0627\u0644\u062a\u0623\u0631\u064a\u0636\u060c \u0648\u0645\u0633\u062a\u0648\u064a\u0627\u062a \u062a\u062d\u0645\u0644 \u0627\u0644\u0645\u0639\u062f\u0627\u062a.<\/p>\n<p>\u0641\u064a \u062d\u0627\u0644 \u0643\u0627\u0646\u062a \u0643\u0627\u0628\u0644\u0627\u062a \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0637\u0648\u064a\u0644\u0629\u060c \u0642\u062f \u064a\u0644\u0632\u0645 \u0648\u062c\u0648\u062f \u0623\u062c\u0647\u0632\u0629 \u062d\u0645\u0627\u064a\u0629 \u0645\u0646\u0633\u0642\u0629 \u0639\u0646\u062f \u0643\u0644\u0627 \u0627\u0644\u0637\u0631\u0641\u064a\u0646. \u064a\u062c\u0628 \u0623\u0646 \u064a\u062a\u0628\u0639 \u0627\u0644\u062a\u0646\u0633\u064a\u0642 \u0648\u0627\u0644\u0645\u0648\u0636\u0639 \u0627\u0644\u0646\u0647\u0627\u0626\u064a \u0645\u0639\u0627\u064a\u064a\u0631 \u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0627\u0644\u0645\u0639\u0645\u0648\u0644 \u0628\u0647\u0627 \u0648\u0645\u0639\u064a\u0627\u0631 IEC 61643-32 \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0627\u0644\u0627\u0639\u062a\u0645\u0627\u062f \u0639\u0644\u0649 \u0642\u0627\u0639\u062f\u0629 \u0639\u0627\u0645\u0629 \u0644\u062c\u0647\u0627\u0632 \u0648\u0627\u062d\u062f.<\/p>\n<hr \/>\n<h2>\u0645\u062a\u0649 \u064a\u062c\u0628 \u0639\u0644\u064a\u0643 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0646\u0648\u0639 1 \u0623\u0648 \u0627\u0644\u0646\u0648\u0639 2 \u0623\u0648 \u0627\u0644\u0646\u0648\u0639 1+2\u061f<\/h2>\n<h3>\u0636\u0639 \u0641\u064a \u0627\u0639\u062a\u0628\u0627\u0631\u0643 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0646\u0648\u0639 1 \u0623\u0648 \u0627\u0644\u0646\u0648\u0639 1+2 \u0641\u064a \u0627\u0644\u062d\u0627\u0644\u0627\u062a \u0627\u0644\u062a\u0627\u0644\u064a\u0629:<\/h3>\n<ul>\n<li>\u0648\u062c\u0648\u062f \u0646\u0638\u0627\u0645 \u062d\u0645\u0627\u064a\u0629 \u062e\u0627\u0631\u062c\u064a \u0645\u0646 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 \u0641\u064a \u0627\u0644\u0645\u0628\u0646\u0649.<\/li>\n<li>\u0639\u062f\u0645 \u0625\u0645\u0643\u0627\u0646\u064a\u0629 \u0627\u0644\u062d\u0641\u0627\u0638 \u0639\u0644\u0649 \u0645\u0633\u0627\u0641\u0629 \u0627\u0644\u0641\u0635\u0644 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629.<\/li>\n<li>\u0627\u062d\u062a\u0645\u0627\u0644\u064a\u0629 \u062f\u062e\u0648\u0644 \u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 \u0625\u0644\u0649 \u062a\u0645\u062f\u064a\u062f\u0627\u062a \u0627\u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a \u0623\u0648 \u0639\u0628\u0648\u0631\u0647 \u0644\u062d\u062f\u0648\u062f \u0645\u0646\u0637\u0642\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 (LPZ).<\/li>\n<li>\u064a\u062a\u0637\u0644\u0628 \u062a\u0642\u064a\u064a\u0645 \u0645\u062e\u0627\u0637\u0631 \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0642\u062f\u0631\u0629 \u0639\u0644\u0649 \u062a\u0641\u0631\u064a\u063a \u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0648\u0627\u0639\u0642.<\/li>\n<\/ul>\n<h3>\u064a\u062c\u0628 \u0645\u0631\u0627\u0639\u0627\u0629 \u0627\u0644\u0646\u0648\u0639 2 (Type 2) \u0641\u064a \u0627\u0644\u062d\u0627\u0644\u0627\u062a \u0627\u0644\u062a\u0627\u0644\u064a\u0629:<\/h3>\n<ul>\n<li>\u0639\u0646\u062f\u0645\u0627 \u064a\u0643\u0648\u0646 \u0627\u0644\u062e\u0637\u0631 \u0627\u0644\u0631\u0626\u064a\u0633\u064a \u0647\u0648 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 \u0627\u0644\u0645\u0633\u062a\u062d\u062b\u0629 \u0623\u0648 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0632\u0627\u0626\u062f \u0627\u0644\u0646\u0627\u062a\u062c \u0639\u0646 \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u062a\u0628\u062f\u064a\u0644.<\/li>\n<li>\u0639\u0646\u062f\u0645\u0627 \u064a\u062a\u0645 \u062a\u0631\u0643\u064a\u0628 \u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 (SPD) \u0641\u064a \u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u062a\u064a\u0627\u0631 \u0628\u0639\u062f \u062c\u0647\u0627\u0632 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 1 (Type 1).<\/li>\n<li>\u0639\u0646\u062f\u0645\u0627 \u064a\u062a\u0637\u0644\u0628 \u0635\u0646\u062f\u0648\u0642 \u062a\u062c\u0645\u064a\u0639 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 (PV combiner box) \u0623\u0648 \u0645\u062f\u062e\u0644 \u0627\u0644\u0639\u0627\u0643\u0633 \u062d\u0645\u0627\u064a\u0629 \u0645\u062d\u0644\u064a\u0629 \u0645\u0646 \u0627\u0644\u0627\u0646\u062f\u0641\u0627\u0639\u0627\u062a \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u062f\u0648\u0646 \u0627\u0644\u062d\u0627\u062c\u0629 \u0644\u062a\u062d\u0645\u0644 \u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 \u0627\u0644\u0645\u0628\u0627\u0634\u0631.<\/li>\n<\/ul>\n<p>\u064a\u062c\u0628 \u0623\u0646 \u064a\u0623\u062e\u0630 \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0646\u0647\u0627\u0626\u064a \u062f\u0627\u0626\u0645\u0627\u064b \u0641\u064a \u0627\u0644\u0627\u0639\u062a\u0628\u0627\u0631 Ucpv\u060c \u0648Iimp \u062d\u064a\u062b\u0645\u0627 \u064a\u0646\u0637\u0628\u0642 \u0630\u0644\u0643\u060c \u0648In\u060c \u0648Imax\u060c \u0648Up\u060c \u0648Iscpv\u060c \u0648\u0646\u0645\u0637 \u0627\u0644\u062d\u0645\u0627\u064a\u0629\u060c \u0648\u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0623\u0631\u064a\u0636\u060c \u0648\u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0627\u062d\u062a\u064a\u0627\u0637\u064a\u0629\u060c \u0648\u0627\u0644\u0634\u0647\u0627\u062f\u0627\u062a\u060c \u0648\u0644\u064a\u0633 \u0641\u0642\u0637 \u0623\u0643\u0628\u0631 \u0642\u064a\u0645\u0629 \u0628\u0627\u0644\u0643\u064a\u0644\u0648 \u0623\u0645\u0628\u064a\u0631 (kA) \u0645\u0643\u062a\u0648\u0628\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0644\u0635\u0642.<\/p>\n<hr \/>\n<h2>\u0623\u062e\u0637\u0627\u0621 \u0634\u0627\u0626\u0639\u0629 \u0641\u064a \u0627\u062e\u062a\u064a\u0627\u0631 \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0627\u0646\u062f\u0641\u0627\u0639\u0627\u062a \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u0644\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 (DC SPD).<\/h2>\n<ol>\n<li><strong>\u0627\u0644\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629 (Class II) \u0639\u0644\u0649 \u0623\u0646\u0647\u0627 \u062a\u0635\u0646\u064a\u0641 \u0644\u0644\u062c\u0648\u062f\u0629.<\/strong> \u0625\u0646\u0647\u0627 \u0641\u0626\u0629 \u0627\u062e\u062a\u0628\u0627\u0631\u060c \u0648\u0644\u064a\u0633\u062a \u062a\u0635\u0631\u064a\u062d\u0627\u064b \u0628\u0623\u0646 \u0627\u0644\u0645\u0646\u062a\u062c \u0645\u0646 \u0627\u0644\u062f\u0631\u062c\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629.<\/li>\n<li><strong>\u0645\u0642\u0627\u0631\u0646\u0629 \u0627\u0644\u062a\u0635\u0646\u064a\u0641\u0627\u062a \u0627\u0644\u062d\u0627\u0644\u064a\u0629 \u062f\u0648\u0646 \u0645\u0631\u0627\u0639\u0627\u0629 \u0634\u0643\u0644 \u0627\u0644\u0645\u0648\u062c\u0629.<\/strong> \u062a\u064a\u0627\u0631 40 \u0643\u064a\u0644\u0648 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629 \u0644\u0627 \u064a\u0639\u0627\u062f\u0644 40 \u0643\u064a\u0644\u0648 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 10\/350 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629.<\/li>\n<li><strong>\u0627\u0644\u062e\u0644\u0637 \u0628\u064a\u0646 \u062a\u064a\u0627\u0631 \u0627\u0644\u0642\u0635\u0631 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a (Iscpv) \u0648\u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 (surge current).<\/strong> \u064a\u0631\u062a\u0628\u0637 Iscpv \u0628\u0638\u0631\u0648\u0641 \u0627\u0644\u0642\u0635\u0631 \u0641\u064a \u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629\u061b \u0628\u064a\u0646\u0645\u0627 \u064a\u0631\u062a\u0628\u0637 In \u0648 Imax \u0628\u062a\u0641\u0631\u064a\u063a \u0627\u0644\u0635\u0648\u0627\u0639\u0642.<\/li>\n<li><strong>\u0627\u062e\u062a\u064a\u0627\u0631 \u062c\u0647\u062f \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 (Ucpv) \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0627\u0633\u0645\u064a \u0644\u0644\u0646\u0638\u0627\u0645 \u0641\u0642\u0637.<\/strong> \u064a\u062c\u0628 \u062d\u0633\u0627\u0628 \u062c\u0647\u062f \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0627\u0644\u0645\u0641\u062a\u0648\u062d\u0629 (Voc) \u0639\u0646\u062f \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0645\u0646\u062e\u0641\u0636\u0629.<\/li>\n<li><strong>\u062a\u062c\u0627\u0647\u0644 \u0637\u0648\u0644 \u0627\u0644\u0645\u0648\u0635\u0644.<\/strong> \u062a\u0624\u062f\u064a \u0627\u0644\u062a\u0648\u0635\u064a\u0644\u0627\u062a \u0627\u0644\u0637\u0648\u064a\u0644\u0629 \u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPD) \u0625\u0644\u0649 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0641\u0639\u0644\u064a \u0627\u0644\u0630\u064a \u062a\u062a\u0639\u0631\u0636 \u0644\u0647 \u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u0645\u062d\u0645\u064a\u0629.<\/li>\n<li><strong>\u062a\u0631\u0643\u064a\u0628 \u0645\u0639\u062f\u0627\u062a \u0628\u062a\u0635\u0646\u064a\u0641 IP20 \u0641\u064a \u0627\u0644\u0623\u0645\u0627\u0643\u0646 \u0627\u0644\u062e\u0627\u0631\u062c\u064a\u0629 \u062f\u0648\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0635\u0646\u062f\u0648\u0642 \u062d\u0645\u0627\u064a\u0629.<\/strong> \u0644\u0627 \u064a\u0648\u0641\u0631 \u062a\u0635\u0646\u064a\u0641 IP20 \u0623\u064a \u062d\u0645\u0627\u064a\u0629 \u0636\u062f \u0627\u0644\u0645\u0627\u0621.<\/li>\n<li><strong>\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0623\u062c\u0647\u0632\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2 \u0641\u064a \u0627\u0644\u0645\u0648\u0627\u0642\u0639 \u0627\u0644\u062a\u064a \u062a\u062a\u0637\u0644\u0628 \u0623\u062c\u0647\u0632\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 1.<\/strong> \u062a\u062a\u0637\u0644\u0628 \u0645\u062e\u0627\u0637\u0631 \u0627\u0644\u062a\u0639\u0631\u0636 \u0627\u0644\u0645\u0628\u0627\u0634\u0631 \u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 \u0627\u062e\u062a\u064a\u0627\u0631 \u0641\u0626\u0629 \u0627\u062e\u062a\u0628\u0627\u0631 \u0635\u062d\u064a\u062d\u0629 \u0648\u062a\u0635\u0645\u064a\u0645\u0627\u064b \u0647\u0646\u062f\u0633\u064a\u0627\u064b \u062f\u0642\u064a\u0642\u0627\u064b \u0644\u0644\u0646\u0638\u0627\u0645.<\/li>\n<\/ol>\n<hr \/>\n<h2>\u0627\u0644\u062e\u0627\u062a\u0645\u0629<\/h2>\n<p>\u064a\u0639\u062f \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u062d\u064a\u062d \u0644\u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPD) \u0644\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0642\u0631\u0627\u0631\u0627\u064b \u0647\u0646\u062f\u0633\u064a\u0627\u064b \u0645\u0646\u0633\u0642\u0627\u064b. \u064a\u062c\u0628 \u0623\u0646 \u064a\u062a\u0645\u062a\u0639 \u0627\u0644\u062c\u0647\u0627\u0632 \u0628\u062c\u0647\u062f \u062a\u0634\u063a\u064a\u0644 \u0645\u0633\u062a\u0645\u0631 \u0645\u0646\u0627\u0633\u0628\u060c \u0648\u0641\u0626\u0629 \u0627\u062e\u062a\u0628\u0627\u0631 \u0635\u062d\u064a\u062d\u0629\u060c \u0648\u0642\u062f\u0631\u0629 \u062a\u0641\u0631\u064a\u063a \u0643\u0627\u0641\u064a\u0629\u060c \u0648\u0645\u0633\u062a\u0648\u0649 \u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u062c\u0647\u062f \u0645\u0644\u0627\u0626\u0645\u060c \u0648\u0633\u0644\u0627\u0645\u0629 \u0643\u0627\u0641\u064a\u0629 \u0636\u062f \u062a\u064a\u0627\u0631 \u0627\u0644\u0642\u0635\u0631 \u0641\u064a \u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629.<\/p>\n<p>\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0648\u062d\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0645\u0630\u0643\u0648\u0631\u0629 \u0641\u064a \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u062a\u0634\u064a\u0631 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629 (Class II) \u0625\u0644\u0649 \u062a\u0637\u0628\u064a\u0642 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2\u061b \u0628\u064a\u0646\u0645\u0627 \u064a\u0635\u0641 \u0643\u0644 \u0645\u0646 In 20 kA \u0648 Imax 40 kA \u0623\u062f\u0627\u0621 \u062a\u064a\u0627\u0631 \u0627\u0644\u0627\u0646\u062f\u0641\u0627\u0639 \u0628\u0645\u0648\u062c\u0629 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629\u061b \u0648\u064a\u0645\u062b\u0644 Up 4.0 kV \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u062c\u0647\u062f\u061b \u0623\u0645\u0627 Iscpv 10 kA \u0641\u0647\u0648 \u062a\u0635\u0646\u064a\u0641 \u062a\u064a\u0627\u0631 \u0627\u0644\u0642\u0635\u0631 \u0644\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u0629. \u0644\u0627 \u064a\u0645\u0643\u0646 \u0644\u0623\u064a \u0645\u0646 \u0647\u0630\u0647 \u0627\u0644\u0642\u064a\u0645 \u0623\u0646 \u062a\u062d\u0644 \u0645\u062d\u0644 \u0627\u0644\u0623\u062e\u0631\u0649.<\/p>\n<p>\u0647\u0644 \u062a\u062d\u062a\u0627\u062c \u0625\u0644\u0649 \u0645\u0633\u0627\u0639\u062f\u0629 \u0641\u064a \u0627\u062e\u062a\u064a\u0627\u0631 \u062c\u0647\u0627\u0632 \u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 (SPD) \u0644\u0646\u0638\u0627\u0645\u0643 \u0627\u0644\u0643\u0647\u0631\u0648\u0636\u0648\u0626\u064a\u061f \u0623\u0631\u0633\u0644 \u0644\u0646\u0627. <a href=\"https:\/\/cnkuangya.com\/ar\/contact-us\/\">\u0643\u0648\u0627\u0646\u062c\u064a\u0627<\/a> \u0623\u0642\u0635\u0649 \u062c\u0647\u062f \u0644\u0644\u0646\u0638\u0627\u0645\u060c \u0648\u062a\u0643\u0648\u064a\u0646 \u0633\u0644\u0633\u0644\u0629 \u0627\u0644\u0648\u062d\u062f\u0627\u062a\u060c \u0648\u0627\u0644\u062d\u062f \u0627\u0644\u0623\u062f\u0646\u0649 \u0644\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0645\u0648\u0642\u0639\u060c \u0648\u0645\u0648\u0636\u0639 \u0627\u0644\u062a\u0631\u0643\u064a\u0628\u060c \u0648\u062a\u0631\u062a\u064a\u0628 \u0627\u0644\u062a\u0623\u0631\u064a\u0636\u060c \u0648\u0638\u0631\u0648\u0641 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0635\u0648\u0627\u0639\u0642. \u064a\u0645\u0643\u0646\u0646\u0627 \u0627\u0644\u062a\u0648\u0635\u064a\u0629 \u0628\u0637\u0631\u0627\u0632 \u0645\u0646\u0627\u0633\u0628 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 1 \u0623\u0648 \u0627\u0644\u0646\u0648\u0639 2 \u0623\u0648 \u0627\u0644\u0646\u0648\u0639 1+2 \u0644\u0647\u0630\u0627 \u0627\u0644\u062a\u0637\u0628\u064a\u0642.<\/p>\n<hr \/>\n<h2>\u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/h2>\n<h3>\u0645\u0627 \u0627\u0644\u0641\u0631\u0642 \u0628\u064a\u0646 \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 (DC SPD) \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u0623\u0648\u0644\u0649 \u0648\u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629\u061f<\/h3>\n<p>Class I (Type 1) DC SPDs are tested with a 10\/350 \u03bcs lightning-current impulse and are intended for installations where partial lightning current may enter the PV system. Class II (Type 2) DC SPDs are tested with an 8\/20 \u03bcs waveform and mainly protect against induced lightning and switching surges.<\/p>\n<h3>Can a Type 2 SPD protect a PV system from direct lightning?<\/h3>\n<p>A Type 2 SPD is not automatically suitable for direct-lightning-current duty. Where lightning current can enter the installation, use a properly tested Type 1 or Type 1+2 SPD as required by the lightning protection and risk assessment.<\/p>\n<h3>How do I choose Ucpv for a DC SPD?<\/h3>\n<p>Choose a Ucpv rating that is not lower than the PV array maximum open-circuit voltage after correcting module Voc for the lowest expected site temperature. Also verify the inverter voltage limit and the manufacturer\u2019s installation requirements.<\/p>\n<h3>Where should DC SPDs be installed?<\/h3>\n<p>Typical locations include PV combiner boxes and inverter DC inputs. Long cable routes or lightning protection zone boundaries may require coordinated SPDs at more than one location.<\/p>\n<h2>Standards Referenced<\/h2>\n<ul>\n<li>IEC 61643-31 \u2014 Requirements and test methods for SPDs for photovoltaic installations.<\/li>\n<li>IEC 61643-32 \u2014 Selection and application principles for SPDs connected to the DC side of photovoltaic installations.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>A Practical Guide to Class I, Class II and Class III Surge Protective Devices DC surge protective devices (SPDs) are used on the DC side of photovoltaic systems to limit transient overvoltages and divert surge current before it damages inverters, monitoring equipment, combiner boxes and other sensitive components. However, markings such as Class I, Class [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-4376","post","type-post","status-publish","format-standard","hentry","category-blog"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/posts\/4376","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/comments?post=4376"}],"version-history":[{"count":3,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/posts\/4376\/revisions"}],"predecessor-version":[{"id":4395,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/posts\/4376\/revisions\/4395"}],"wp:attachment":[{"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/media?parent=4376"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/categories?post=4376"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/tags?post=4376"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}