{"id":2154,"date":"2025-08-13T17:13:07","date_gmt":"2025-08-13T09:13:07","guid":{"rendered":"https:\/\/www.britecelectric.com\/?post_type=blog&#038;p=2154"},"modified":"2025-08-13T17:13:07","modified_gmt":"2025-08-13T09:13:07","slug":"what-is-a-type-2-surge-protection-device","status":"publish","type":"blog","link":"https:\/\/www.britecelectric.com\/ar\/blog\/what-is-a-type-2-surge-protection-device\/","title":{"rendered":"\u0645\u0627 \u0647\u0648 \u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2\u061f"},"content":{"rendered":"<h2 data-start=\"226\" data-end=\"241\">\u0645\u0642\u062f\u0645\u0629<\/h2>\r\n<p data-start=\"243\" data-end=\"597\">A <a href=\"https:\/\/www.britecelectric.com\/ar\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\"><strong data-start=\"245\" data-end=\"279\">\u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0637\u0641\u0631\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2<\/strong><\/a> (\u0627\u0644\u0646\u0648\u0639 2 SPD) \u0647\u0648 \u0627\u0644\u0639\u0645\u0648\u062f \u0627\u0644\u0641\u0642\u0631\u064a \u0644\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u062f\u0627\u062e\u0644 \u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u0627\u0644\u062d\u062f\u064a\u062b\u0629. \u064a\u062a\u0645 \u062a\u062b\u0628\u064a\u062a\u0647 \u0639\u0644\u0649 \u0644\u0648\u062d\u0629 \u0627\u0644\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0623\u0648 \u062e\u0632\u0627\u0646\u0629 \u0627\u0644\u062a\u062d\u0643\u0645\u060c \u0648\u064a\u0639\u0645\u0644 \u0628\u0645\u062b\u0627\u0628\u0629 \u0627\u0644\u062f\u0631\u0639 \u0627\u0644\u062b\u0627\u0646\u064a \u0641\u064a \u0627\u0633\u062a\u0631\u0627\u062a\u064a\u062c\u064a\u0629 \u0627\u0644\u062f\u0641\u0627\u0639 \u0645\u062a\u0639\u062f\u062f\u0629 \u0627\u0644\u0637\u0628\u0642\u0627\u062a - \u062d\u064a\u062b \u064a\u0644\u062a\u0642\u0637 \u0627\u0644\u0627\u0646\u062f\u0641\u0627\u0639\u0627\u062a \u0627\u0644\u0645\u062a\u0628\u0642\u064a\u0629 \u0627\u0644\u062a\u064a \u062e\u0644\u0641\u062a\u0647\u0627 \u0648\u062d\u062f\u0627\u062a SPD \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 1 \u0641\u064a \u0627\u0644\u0645\u0646\u0628\u0639 \u0648\u064a\u0642\u0645\u0639 \u0627\u0644\u0639\u0627\u0628\u0631\u064a\u0646 \u0627\u0644\u0645\u062a\u0648\u0644\u062f\u064a\u0646 \u062f\u0627\u062e\u0644 \u0627\u0644\u0634\u0628\u0643\u0629.<\/p>\r\n<p data-start=\"599\" data-end=\"986\">\u062a\u062d\u0645\u064a \u0647\u0630\u0647 \u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0645\u0646 \u0627\u0644\u062a\u064a\u0627\u0631\u0627\u062a \u0627\u0644\u0646\u0628\u0636\u064a\u0629 \u0627\u0644\u0628\u0627\u0644\u063a\u0629 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629 \u0627\u0644\u062a\u064a \u062a\u062d\u062f\u062b \u0646\u062a\u064a\u062c\u0629 \u0644\u0644\u0632\u064a\u0627\u062f\u0627\u062a \u0627\u0644\u0646\u0627\u062c\u0645\u0629 \u0639\u0646 \u0627\u0644\u0628\u0631\u0642 \u0623\u0648 \u0623\u062d\u062f\u0627\u062b \u0627\u0644\u062a\u0628\u062f\u064a\u0644 \u0623\u0648 \u0627\u0636\u0637\u0631\u0627\u0628\u0627\u062a \u0627\u0644\u0645\u0631\u0627\u0641\u0642.<\/p>\r\n\u0644\u0636\u0645\u0627\u0646 \u062d\u0645\u0627\u064a\u0629 \u0645\u0648\u062b\u0648\u0642\u0629 \u0648\u0637\u0648\u064a\u0644\u0629 \u0627\u0644\u0623\u0645\u062f\u060c \u064a\u062d\u062a\u0627\u062c \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u0648\u0646 \u0648\u0627\u0644\u0645\u0634\u062a\u0631\u0648\u0646 \u0627\u0644\u0641\u0646\u064a\u0648\u0646 \u0625\u0644\u0649 \u0641\u0647\u0645 \u0627\u0644\u0639\u062f\u064a\u062f \u0645\u0646 \u0627\u0644\u062c\u0648\u0627\u0646\u0628 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0644\u0640 SPD \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2:\r\n<ul>\r\n \t<li><b>\u062a\u0639\u0631\u064a\u0641:<\/b> \u0645\u0627 \u0647\u0630\u0627\u061f<\/li>\r\n \t<li><b>\u0643\u064a\u0641 \u064a\u0639\u0645\u0644:<\/b> \u0645\u0628\u0627\u062f\u0626 \u0639\u0645\u0644\u0647\u0627.<\/li>\r\n \t<li><b>\u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631:<\/b> \u0645\u0627 \u0647\u064a \u0627\u0644\u0644\u0648\u0627\u0626\u062d \u0627\u0644\u062a\u064a \u062a\u0644\u0628\u064a\u0647\u0627\u061f<\/li>\r\n \t<li><b>\u0627\u0644\u062a\u062b\u0628\u064a\u062a \u0648\u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631:<\/b> \u0642\u0648\u0627\u0639\u062f \u0627\u062e\u062a\u064a\u0627\u0631\u0647 \u0648\u062a\u062b\u0628\u064a\u062a\u0647 \u0628\u0634\u0643\u0644 \u0635\u062d\u064a\u062d.<\/li>\r\n<\/ul>\r\n<h2 data-start=\"993\" data-end=\"1042\">\u062a\u0639\u0631\u064a\u0641 \u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u062b\u0627\u0646\u064a<\/h2>\r\n<p data-start=\"1044\" data-end=\"1268\">\u0648\u0641\u0642\u0627 \u0644 <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/65314\" target=\"_blank\" rel=\"noopener\"><em><strong>\u0645\u0639\u064a\u0627\u0631 IEC\/EN 61643-11<\/strong><\/em><\/a>, \u060c **\u0627\u0644\u0646\u0648\u0639 2 SPD** \u0647\u0648 \u062c\u0647\u0627\u0632 \u0645\u0646 \u0627\u0644\u062f\u0631\u062c\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629. \u0648\u0647\u064a \u0645\u0635\u0645\u0645\u0629 \u0644\u0644\u0645\u0648\u0627\u0642\u0639 \u0627\u0644\u062a\u064a \u0644\u0627 \u062a\u062a\u0639\u0631\u0636 \u0644\u0636\u0631\u0628\u0627\u062a \u0635\u0627\u0639\u0642\u0629 \u0645\u0628\u0627\u0634\u0631\u0629. \u0648\u0645\u0639 \u0630\u0644\u0643\u060c \u0644\u0627 \u062a\u0632\u0627\u0644 \u0647\u0630\u0647 \u0627\u0644\u0645\u0648\u0627\u0642\u0639 \u062a\u0648\u0627\u062c\u0647 \u062e\u0637\u0631 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0632\u0627\u0626\u062f \u0627\u0644\u0639\u0627\u0628\u0631.<\/p>\r\n<p data-start=\"1270\" data-end=\"1290\">\u0627\u0644\u062e\u0635\u0627\u0626\u0635 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629:<\/p>\r\n\r\n<ul data-start=\"1291\" data-end=\"1618\">\r\n \t<li data-start=\"1291\" data-end=\"1335\">\r\n<p data-start=\"1293\" data-end=\"1335\">\u062a\u0645 \u0627\u062e\u062a\u0628\u0627\u0631\u0647 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0623\u0634\u0643\u0627\u0644 \u0645\u0648\u062c\u064a\u0629 \u062d\u0627\u0644\u064a\u0629 \u062a\u0628\u0644\u063a 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1336\" data-end=\"1466\">\r\n<p data-start=\"1338\" data-end=\"1466\">\u064a\u062a\u0631\u0627\u0648\u062d \u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0641\u0631\u064a\u063a \u0627\u0644\u0627\u0633\u0645\u064a \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a (In) \u0628\u064a\u0646 5-20 \u0643\u064a\u0644\u0648 \u0623\u0645\u0628\u064a\u0631\u060c \u0645\u0639 \u0623\u0642\u0635\u0649 \u062a\u064a\u0627\u0631 \u062a\u0641\u0631\u064a\u063a (Imax) \u064a\u0635\u0644 \u0625\u0644\u0649 40-80 \u0643\u064a\u0644\u0648 \u0623\u0645\u0628\u064a\u0631.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1467\" data-end=\"1530\">\r\n<p data-start=\"1469\" data-end=\"1530\">\u0645\u062b\u0628\u062a\u0629 \u0639\u0644\u0649 \u062c\u0627\u0646\u0628 \u0627\u0644\u062a\u062d\u0645\u064a\u0644 \u0645\u0646 \u0644\u0648\u062d\u0629 \u0627\u0644\u062e\u062f\u0645\u0629 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1531\" data-end=\"1618\">\r\n<p data-start=\"1533\" data-end=\"1618\">\u064a\u062d\u0645\u064a \u0645\u0646 \u0643\u0644 \u0645\u0646 \u0627\u0644\u0632\u064a\u0627\u062f\u0627\u062a \u0627\u0644\u062e\u0627\u0631\u062c\u064a\u0629 \u0627\u0644\u0645\u062a\u0628\u0642\u064a\u0629 \u0648\u0627\u0644\u0637\u0641\u0631\u0627\u062a \u0627\u0644\u062a\u0628\u062f\u064a\u0644\u064a\u0629 \u0627\u0644\u062f\u0627\u062e\u0644\u064a\u0629.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"1620\" data-end=\"1802\">\u0641\u064a \u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0627\u0644\u0639\u0645\u0644\u064a\u060c \u064a\u0648\u062c\u062f \u062c\u0647\u0627\u0632 SPD \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2 \u0628\u0639\u062f \u062c\u0647\u0627\u0632 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 1 \u0648\u0642\u0628\u0644 \u0623\u064a \u062d\u0645\u0627\u064a\u0629 \u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 3\u060c \u0645\u0645\u0627 \u064a\u0634\u0643\u0644 \u062c\u0632\u0621\u064b\u0627 \u0645\u0646 \u0646\u0638\u0627\u0645 \u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0645\u062a\u0639\u062f\u062f \u0627\u0644\u0645\u0631\u0627\u062d\u0644.<\/p>\r\n<p data-start=\"1620\" data-end=\"1802\"><a href=\"https:\/\/www.britecelectric.com\/ar\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\"><img class=\"alignnone  wp-image-2160\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/BR-20-4P-1Type-2-Surge-Protection-Device.jpg-1024x1024.webp\" alt=\"\" width=\"900\" height=\"900\" \/><\/a><\/p>\r\n\r\n<h2 data-start=\"1809\" data-end=\"1859\">\u0643\u064a\u0641 \u0623 <a href=\"https:\/\/www.britecelectric.com\/ar\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\">\u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0637\u0641\u0631\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2<\/a> \u0639\u0645\u0644\u061f<\/h2>\r\n<p data-start=\"1861\" data-end=\"2143\">\u064a\u0639\u0645\u0644 \u0627\u0644\u0646\u0648\u0639 2 SPD \u0639\u0644\u0649 \u0645\u0628\u062f\u0623 \u062a\u062b\u0628\u064a\u062a \u0627\u0644\u062c\u0647\u062f. \u0641\u064a \u0638\u0644 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0639\u0627\u062f\u064a\u060c \u0641\u0625\u0646\u0647 \u064a\u0628\u0642\u0649 \u0633\u0644\u0628\u064a\u0627. \u0639\u0646\u062f\u0645\u0627 \u064a\u062a\u062c\u0627\u0648\u0632 \u0627\u0644\u062a\u062f\u0641\u0642 \u0627\u0644\u0639\u0627\u0628\u0631 \u0627\u0644\u062d\u062f \u0627\u0644\u0623\u0642\u0635\u0649 \u0644\u062c\u0647\u062f \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 (Uc)\u060c \u062a\u062a\u062d\u0648\u0644 \u0645\u0643\u0648\u0646\u0627\u062a\u0647 \u0627\u0644\u062f\u0627\u062e\u0644\u064a\u0629 \u0628\u0633\u0631\u0639\u0629 \u0625\u0644\u0649 \u062d\u0627\u0644\u0629 \u0645\u0648\u0635\u0644\u0629\u060c \u0645\u0645\u0627 \u064a\u0624\u062f\u064a \u0625\u0644\u0649 \u062a\u062d\u0648\u064a\u0644 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0632\u0627\u0626\u062f\u0629 \u0625\u0644\u0649 \u0627\u0644\u0623\u0631\u0636.<\/p>\r\n<p data-start=\"2145\" data-end=\"2176\"><strong data-start=\"2145\" data-end=\"2176\">\u062a\u0634\u0645\u0644 \u0627\u0644\u0645\u0643\u0648\u0646\u0627\u062a \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a\u0629 \u0645\u0627 \u064a\u0644\u064a:<\/strong><\/p>\r\n\r\n<ul data-start=\"2177\" data-end=\"2557\">\r\n \t<li data-start=\"2177\" data-end=\"2285\">\r\n<p data-start=\"2179\" data-end=\"2285\"><strong data-start=\"2179\" data-end=\"2210\">MOV (\u0645\u0643\u062b\u0641 \u0623\u0643\u0633\u064a\u062f \u0627\u0644\u0645\u0639\u062f\u0646):<\/strong> \u0639\u0646\u0635\u0631 \u0627\u0644\u062a\u062b\u0628\u064a\u062a \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u060c \u064a\u0645\u062a\u0635 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0632\u0627\u0626\u062f\u0629 \u0648\u064a\u0642\u0644\u0644 \u0627\u0644\u062c\u0647\u062f.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2286\" data-end=\"2385\">\r\n<p data-start=\"2288\" data-end=\"2385\"><strong data-start=\"2288\" data-end=\"2320\">\u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0647\u062c\u064a\u0646\u0629 (MOV + GDT):<\/strong> \u0627\u062c\u0645\u0639 \u0628\u064a\u0646 \u0642\u062f\u0631\u0629 \u0627\u0644\u062a\u062f\u0641\u0642 \u0627\u0644\u0639\u0627\u0644\u064a\u0629 \u0648\u0627\u0644\u0645\u0648\u062b\u0648\u0642\u064a\u0629 \u0627\u0644\u0645\u062d\u0633\u0646\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u062f\u0649 \u0627\u0644\u0637\u0648\u064a\u0644.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2386\" data-end=\"2470\">\r\n<p data-start=\"2388\" data-end=\"2470\"><strong data-start=\"2388\" data-end=\"2418\">\u0646\u0638\u0627\u0645 \u0627\u0644\u0641\u0635\u0644 \u0627\u0644\u062d\u0631\u0627\u0631\u064a:<\/strong> \u064a\u0639\u0632\u0644 SPD \u0641\u064a \u0646\u0647\u0627\u064a\u0629 \u0627\u0644\u0639\u0645\u0631 \u0644\u0644\u062d\u0641\u0627\u0638 \u0639\u0644\u0649 \u0627\u0644\u0633\u0644\u0627\u0645\u0629.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2471\" data-end=\"2557\">\r\n<p data-start=\"2473\" data-end=\"2557\"><strong data-start=\"2473\" data-end=\"2494\">\u0645\u0624\u0634\u0631 \u0627\u0644\u062d\u0627\u0644\u0629:<\/strong> \u0646\u0627\u0641\u0630\u0629 \u0645\u0631\u0626\u064a\u0629 \u0623\u0648 \u0645\u062e\u0631\u062c \u062c\u0647\u0629 \u0627\u062a\u0635\u0627\u0644 \u0644\u0625\u0638\u0647\u0627\u0631 \u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644\u064a\u0629.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"2559\" data-end=\"2582\"><strong data-start=\"2559\" data-end=\"2582\">\u062a\u0633\u0644\u0633\u0644 \u0627\u0644\u0639\u0645\u0644\u064a\u0629:<\/strong><\/p>\r\n\r\n<ol data-start=\"2583\" data-end=\"2882\">\r\n \t<li data-start=\"2583\" data-end=\"2645\">\r\n<p data-start=\"2586\" data-end=\"2645\"><strong data-start=\"2586\" data-end=\"2602\">\u0627\u0644\u0648\u0636\u0639 \u0627\u0644\u0639\u0627\u062f\u064a:<\/strong> \u0645\u0642\u0627\u0648\u0645\u0629 \u0639\u0627\u0644\u064a\u0629\u060c \u0644\u0627 \u064a\u0648\u062c\u062f \u062a\u0623\u062b\u064a\u0631 \u0639\u0644\u0649 \u0627\u0644\u062f\u0627\u0626\u0631\u0629.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2646\" data-end=\"2699\">\r\n<p data-start=\"2649\" data-end=\"2699\"><strong data-start=\"2649\" data-end=\"2665\">\u062d\u062f\u062b \u0627\u0644\u0637\u0641\u0631\u0629:<\/strong> \u064a\u0631\u062a\u0641\u0639 \u0627\u0644\u062c\u0647\u062f \u0641\u0648\u0642 \u0639\u062a\u0628\u0629 Uc.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2700\" data-end=\"2819\">\r\n<p data-start=\"2703\" data-end=\"2819\"><strong data-start=\"2703\" data-end=\"2716\">\u0644\u0642\u0637:<\/strong> \u064a\u0642\u0648\u0645 SPD \u0628\u062a\u062d\u0648\u064a\u0644 \u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u064a\u0627\u0631 \u0625\u0644\u0649 \u0627\u0644\u0623\u0631\u0636\u060c \u0645\u0645\u0627 \u064a\u062e\u0641\u0636 \u0627\u0644\u062c\u0647\u062f \u0625\u0644\u0649 \u0645\u0633\u062a\u0648\u0649 \u0622\u0645\u0646 (\u0645\u0633\u062a\u0648\u0649 \u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u062c\u0647\u062f).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2820\" data-end=\"2882\">\r\n<p data-start=\"2823\" data-end=\"2882\"><strong data-start=\"2823\" data-end=\"2836\">\u0627\u0633\u062a\u0639\u0627\u062f\u0629:<\/strong> \u064a\u0639\u0648\u062f SPD \u0625\u0644\u0649 \u062d\u0627\u0644\u0629 \u0627\u0644\u0627\u0633\u062a\u0639\u062f\u0627\u062f \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629.<\/p>\r\n<\/li>\r\n<\/ol>\r\n<h2 data-start=\"2889\" data-end=\"2940\">\u0648\u0638\u064a\u0641\u0629 \u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0637\u0641\u0631\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2<\/h2>\r\n<p data-start=\"2942\" data-end=\"3106\">\u064a\u062a\u0645\u062b\u0644 \u0627\u0644\u062f\u0648\u0631 \u0627\u0644\u0623\u0633\u0627\u0633\u064a \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 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2 \u0641\u064a \u0627\u0644\u062d\u062f \u0645\u0646 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0632\u0627\u0626\u062f \u0627\u0644\u0639\u0627\u0628\u0631 \u0625\u0644\u0649 \u0645\u0633\u062a\u0648\u0649 \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u062a\u062d\u0645\u0644\u0647 \u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u0646\u0647\u0627\u0626\u064a\u0629 \u062f\u0648\u0646 \u062d\u062f\u0648\u062b \u0636\u0631\u0631.<\/p>\r\n<p data-start=\"3108\" data-end=\"3122\">\u0627\u0644\u0648\u0638\u0627\u0626\u0641 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629:<\/p>\r\n\r\n<ul data-start=\"3123\" data-end=\"3659\">\r\n \t<li data-start=\"3123\" data-end=\"3228\">\r\n<p data-start=\"3125\" data-end=\"3228\"><strong data-start=\"3125\" data-end=\"3154\">\u0627\u0644\u062d\u062f \u0645\u0646 \u0627\u0644\u0637\u0641\u0631\u0629 \u0627\u0644\u0645\u062a\u0628\u0642\u064a\u0629<\/strong> - \u064a\u0642\u0644\u0644 \u0627\u0644\u062c\u0647\u062f \u0628\u0639\u062f \u0623\u0646 \u064a\u0645\u062a\u0635 \u0627\u0644\u0646\u0648\u0639 1 SPD \u0627\u0644\u062c\u0632\u0621 \u0627\u0644\u0623\u0643\u0628\u0631 \u0645\u0646 \u0627\u0644\u0637\u0627\u0642\u0629.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3229\" data-end=\"3356\">\r\n<p data-start=\"3231\" data-end=\"3356\"><strong data-start=\"3231\" data-end=\"3262\">\u062a\u0628\u062f\u064a\u0644 \u0642\u0645\u0639 \u0627\u0644\u0637\u0641\u0631\u0629<\/strong> - \u064a\u062e\u0641\u0641 \u0645\u0646 \u0627\u0644\u0639\u0627\u0628\u0631\u064a\u0646 \u0645\u0646 \u0628\u062f\u0621 \u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0645\u062d\u0631\u0643\u060c \u0623\u0648 \u062a\u0628\u062f\u064a\u0644 \u0627\u0644\u0645\u0636\u062e\u0629\u060c \u0623\u0648 \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u062a\u062d\u0645\u064a\u0644 \u0627\u0644\u0627\u0633\u062a\u0642\u0631\u0627\u0626\u064a \u0627\u0644\u0623\u062e\u0631\u0649.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3357\" data-end=\"3471\">\r\n<p data-start=\"3359\" data-end=\"3471\"><strong data-start=\"3359\" data-end=\"3383\">\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0645\u0639\u062f\u0627\u062a<\/strong> \u2014 \u064a\u0645\u0646\u0639 \u062a\u0644\u0641 \u0627\u0644\u0625\u0644\u0643\u062a\u0631\u0648\u0646\u064a\u0627\u062a \u0627\u0644\u062d\u0633\u0627\u0633\u0629\u060c \u0648\u0623\u062c\u0647\u0632\u0629 PLC\u060c \u0648\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0622\u0644\u064a\u060c \u0648\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u062a\u062d\u0643\u0645.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3472\" data-end=\"3544\">\r\n<p data-start=\"3474\" data-end=\"3544\"><strong data-start=\"3474\" data-end=\"3496\">\u0645\u0648\u062b\u0648\u0642\u064a\u0629 \u0627\u0644\u0646\u0638\u0627\u0645<\/strong> - \u064a\u0642\u0644\u0644 \u0645\u0646 \u0648\u0642\u062a \u0627\u0644\u062a\u0648\u0642\u0641 \u0639\u0646 \u0627\u0644\u0639\u0645\u0644 \u0628\u0633\u0628\u0628 \u0627\u0644\u0623\u0639\u0637\u0627\u0644 \u0627\u0644\u0645\u0631\u062a\u0628\u0637\u0629 \u0628\u0627\u0644\u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u0645\u0641\u0627\u062c\u0626\u0629.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3545\" data-end=\"3659\">\r\n<p data-start=\"3547\" data-end=\"3659\"><strong data-start=\"3547\" data-end=\"3568\">\u062c\u0632\u0621 \u0645\u0646 \u0633\u0644\u0633\u0644\u0629<\/strong> - \u064a\u0642\u0639 \u0628\u064a\u0646 \u062d\u0645\u0627\u064a\u0629 \u0645\u062f\u062e\u0644 \u0627\u0644\u062e\u062f\u0645\u0629 (\u0627\u0644\u0646\u0648\u0639 1) \u0648\u0623\u062c\u0647\u0632\u0629 \u0646\u0642\u0637\u0629 \u0627\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645 (\u0627\u0644\u0646\u0648\u0639 3).<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"3666\" data-end=\"3716\">\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0637\u0641\u0631\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u062b\u0627\u0646\u064a<\/h2>\r\n<a href=\"https:\/\/www.britecelectric.com\/ar\/attachment\/spd-install\/\" rel=\"attachment wp-att-2159\"><img class=\"alignnone size-full wp-image-2159\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/SPD-install.jpg\" alt=\"\" width=\"745\" height=\"609\" \/><\/a>\r\n<p data-start=\"3718\" data-end=\"3747\">\u064a\u062a\u0645 \u062a\u062b\u0628\u064a\u062a \u0623\u062c\u0647\u0632\u0629 SPD \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2 \u0641\u064a:<\/p>\r\n\r\n<ul data-start=\"3748\" data-end=\"4151\">\r\n \t<li data-start=\"3748\" data-end=\"3810\">\r\n<p data-start=\"3750\" data-end=\"3810\">\u0627\u0644\u0645\u0646\u0634\u0622\u062a \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629 \u0627\u0644\u0645\u0632\u0648\u062f\u0629 \u0628\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0635\u0648\u0627\u0639\u0642.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3811\" data-end=\"3891\">\r\n<p data-start=\"3813\" data-end=\"3891\">\u0627\u0644\u0645\u0628\u0627\u0646\u064a \u0627\u0644\u062a\u062c\u0627\u0631\u064a\u0629 \u0644\u062d\u0645\u0627\u064a\u0629 \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062a\u062f\u0641\u0626\u0629 \u0648\u0627\u0644\u062a\u0647\u0648\u064a\u0629 \u0648\u062a\u0643\u064a\u064a\u0641 \u0627\u0644\u0647\u0648\u0627\u0621 \u0648\u0627\u0644\u0645\u0635\u0627\u0639\u062f \u0648\u0627\u0644\u0625\u0636\u0627\u0621\u0629 \u0648\u0623\u0646\u0638\u0645\u0629 \u062a\u0643\u0646\u0648\u0644\u0648\u062c\u064a\u0627 \u0627\u0644\u0645\u0639\u0644\u0648\u0645\u0627\u062a.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3892\" data-end=\"3949\">\r\n<p data-start=\"3894\" data-end=\"3949\">\u062e\u0632\u0627\u0626\u0646 \u0627\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u0627\u0644\u0645\u0627\u0643\u064a\u0646\u0627\u062a \u0644\u0644\u0623\u062a\u0645\u062a\u0629 \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3950\" data-end=\"4034\">\r\n<p data-start=\"3952\" data-end=\"4034\">\u062a\u062a\u0637\u0644\u0628 \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0645\u062a\u062c\u062f\u062f\u0629 - \u0645\u062b\u0644 \u0645\u062d\u0648\u0644\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 \u0648\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u062a\u0648\u0631\u0628\u064a\u0646\u0627\u062a \u0627\u0644\u0631\u064a\u0627\u062d - \u0642\u0648\u0629 <a href=\"https:\/\/www.britecelectric.com\/ar\/product_category\/pv-surge-protection-type-2\/\" target=\"_blank\" rel=\"noopener\">\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0637\u0641\u0631\u0629<\/a> (\u0627\u0646\u0638\u0631 \u0644\u062f\u064a\u0646\u0627 <strong><em><a class=\"\" href=\"https:\/\/www.britecelectric.com\/ar\/blog\/solar-surge-protection-devices-selection-guide\/\" target=\"_blank\" rel=\"noopener\" data-start=\"201\" data-end=\"334\">\u062f\u0644\u064a\u0644 \u0627\u062e\u062a\u064a\u0627\u0631 \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0646\u062f\u0641\u0627\u0639 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629<\/a><\/em><\/strong> \u0648 <strong><em><a class=\"\" href=\"https:\/\/www.britecelectric.com\/ar\/blog\/surge-protection-for-solar-photovoltaic-systems\/\" target=\"_blank\" rel=\"noopener\" data-start=\"339\" data-end=\"474\">\u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0644\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<\/a><\/em><\/strong>).<\/p>\r\n<\/li>\r\n \t<li data-start=\"4035\" data-end=\"4093\">\r\n<p data-start=\"4037\" data-end=\"4093\">\u0627\u0644\u0645\u0633\u062a\u0634\u0641\u064a\u0627\u062a \u0648\u0645\u0631\u0627\u0643\u0632 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u062d\u064a\u062b \u064a\u0643\u0648\u0646 \u0648\u0642\u062a \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0623\u0645\u0631\u064b\u0627 \u0628\u0627\u0644\u063a \u0627\u0644\u0623\u0647\u0645\u064a\u0629.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4094\" data-end=\"4151\">\r\n<p data-start=\"4096\" data-end=\"4151\">\u0627\u0644\u0623\u0644\u0648\u0627\u062d \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0627\u0644\u0633\u0643\u0646\u064a\u0629 \u0644\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0645\u0646\u0632\u0644 \u0628\u0623\u0643\u0645\u0644\u0647.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"262\" data-end=\"316\">\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\u0646\u0648\u0639 1 \u0648\u0627\u0644\u0646\u0648\u0639 2 \u0648\u0627\u0644\u0646\u0648\u0639 3<\/h2>\r\n<p data-start=\"318\" data-end=\"648\">\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 \u0644\u062f\u064a\u0647\u0627 \u062b\u0644\u0627\u062b\u0629 \u0623\u0646\u0648\u0627\u0639 \u0631\u0626\u064a\u0633\u064a\u0629. \u0648\u0644\u0643\u0644 \u0646\u0648\u0639 \u0648\u0638\u064a\u0641\u0629 \u0645\u062e\u062a\u0644\u0641\u0629 \u0641\u064a \u0627\u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a. \u064a\u0645\u0643\u0646\u0643 \u0642\u0631\u0627\u0621\u0629 \u0627\u0644\u0645\u0632\u064a\u062f \u0641\u064a \u062f\u0644\u064a\u0644\u0646\u0627 \u0627\u0644\u062a\u0641\u0635\u064a\u0644\u064a \u0647\u0646\u0627: <em><strong><a class=\"\" href=\"https:\/\/www.britecelectric.com\/ar\/blog\/difference-between-type-1-type-2-and-type-3-surge-protective-devices\/\" target=\"_blank\" rel=\"noopener\" data-start=\"468\" data-end=\"647\">\u0627\u0644\u0641\u0631\u0642 \u0628\u064a\u0646 \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\u0646\u0648\u0639 1 \u0648\u0627\u0644\u0646\u0648\u0639 2 \u0648\u0627\u0644\u0646\u0648\u0639 3<\/a>.<\/strong><\/em><\/p>\r\n\r\n<table style=\"width: 60.5183%;\">\r\n<tbody>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\"><strong><b>\u0645\u064a\u0632\u0629<\/b><\/strong><\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\"><strong><b>\u0627\u0644\u0646\u0648\u0639 1 SPD<\/b><\/strong><\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\"><strong><b>\u0627\u0644\u0646\u0648\u0639 2 SPD<\/b><\/strong><\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\"><strong><b>\u0627\u0644\u0646\u0648\u0639 3 SPD<\/b><\/strong><\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\">\u0645\u0648\u0642\u0639<\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\">\u0645\u062b\u0628\u062a\u0629 \u0639\u0646\u062f \u0645\u062f\u062e\u0644 \u0627\u0644\u062e\u062f\u0645\u0629.<\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\">\u062a\u0645 \u062a\u0631\u0643\u064a\u0628\u0647 \u0639\u0644\u0649 \u0644\u0648\u062d\u0629 \u0627\u0644\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629.<\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\">\u062a\u0645 \u062a\u0631\u0643\u064a\u0628\u0647 \u0628\u0627\u0644\u0642\u0631\u0628 \u0645\u0646 \u0627\u0644\u0623\u062d\u0645\u0627\u0644 \u0627\u0644\u062d\u0633\u0627\u0633\u0629.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\">\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0645\u0648\u062c\u064a<\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\">\u062a\u0645 \u0627\u062e\u062a\u0628\u0627\u0631\u0647 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0646\u0628\u0636\u0629 \u0628\u0631\u0642 \u062a\u0628\u0644\u063a 10\/350 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629.<\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\">\u062a\u0645 \u0627\u062e\u062a\u0628\u0627\u0631\u0647 \u0645\u0639 \u062a\u064a\u0627\u0631 \u0632\u064a\u0627\u062f\u0629 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629.<\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\">\u062a\u0645 \u0627\u062e\u062a\u0628\u0627\u0631\u0647 \u0628\u062c\u0647\u062f 1.2\/50 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629 + \u062a\u064a\u0627\u0631 8\/20 \u0645\u064a\u0643\u0631\u0648\u062b\u0627\u0646\u064a\u0629.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\">\u063a\u0627\u064a\u0629<\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\">\u062a\u0641\u0631\u064a\u063a \u062a\u064a\u0627\u0631 \u0627\u0644\u0628\u0631\u0642 \u0627\u0644\u0645\u0628\u0627\u0634\u0631.<\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\">\u064a\u062d\u062f \u0645\u0646 \u0627\u0644\u0639\u0648\u0627\u0635\u0641 \u0627\u0644\u0645\u062a\u0628\u0642\u064a\u0629 \u0648\u062a\u0628\u062f\u064a\u0644 \u0627\u0644\u0639\u0648\u0627\u0635\u0641.<\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\">\u064a\u0639\u0637\u064a \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0646\u0647\u0627\u0626\u064a\u0629 \u0644\u0644\u0625\u0644\u0643\u062a\u0631\u0648\u0646\u064a\u0627\u062a.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\">\u0646\u0645\u0648\u0630\u062c\u064a \u0644\u0623\u0639\u0644\u0649<\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\">\u2265 4 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a.<\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\">\u2265 2.5 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a.<\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\">\u2265 1.5 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\">\u0623\u0645\u062b\u0644\u0629<\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\">\u0627\u0644\u0645\u0628\u0627\u0646\u064a \u0627\u0644\u0645\u0632\u0648\u062f\u0629 \u0628\u0646\u0638\u0627\u0645 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0635\u0648\u0627\u0639\u0642 (LPS).<\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\">\u0644\u0648\u062d\u0627\u062a \u0627\u0644\u062a\u062d\u0643\u0645 \u0648\u0644\u0648\u062d\u0627\u062a \u0627\u0644\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0641\u0631\u0639\u064a\u0629.<\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\">\u0645\u0639\u062f\u0627\u062a \u062a\u0643\u0646\u0648\u0644\u0648\u062c\u064a\u0627 \u0627\u0644\u0645\u0639\u0644\u0648\u0645\u0627\u062a \u0648\u0627\u0644\u0625\u0644\u0643\u062a\u0631\u0648\u0646\u064a\u0627\u062a \u0627\u0644\u0645\u0646\u0632\u0644\u064a\u0629.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<p data-start=\"1409\" data-end=\"1423\"><strong data-start=\"1409\" data-end=\"1421\">\u0645\u0644\u062e\u0635:<\/strong><\/p>\r\n\r\n<ul data-start=\"1424\" data-end=\"1706\">\r\n \t<li data-start=\"1424\" data-end=\"1494\">\r\n<p data-start=\"1426\" data-end=\"1494\"><strong data-start=\"1426\" data-end=\"1440\">\u0627\u0644\u0646\u0648\u0639 1 SPD<\/strong> \u064a\u0648\u0642\u0641 \u0645\u0639\u0638\u0645 \u062a\u062f\u0641\u0642\u0627\u062a \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0646\u0627\u062a\u062c\u0629 \u0639\u0646 \u0627\u0644\u0628\u0631\u0642.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1495\" data-end=\"1610\">\r\n<p data-start=\"1497\" data-end=\"1610\"><strong data-start=\"1497\" data-end=\"1511\">\u0627\u0644\u0646\u0648\u0639 2 SPD<\/strong> \u0647\u0648 \u062e\u0637 \u0627\u0644\u062f\u0641\u0627\u0639 \u0627\u0644\u0623\u0648\u0633\u0637. \u0625\u0646\u0647 \u064a\u0642\u0644\u0644 \u0645\u0646 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0632\u0627\u0626\u062f \u0627\u0644\u0645\u062a\u0628\u0642\u064a \u0648\u064a\u062a\u062d\u0643\u0645 \u0641\u064a \u062a\u062d\u0648\u064a\u0644 \u0627\u0644\u0639\u0648\u0627\u0635\u0641.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1611\" data-end=\"1706\">\r\n<p data-start=\"1613\" data-end=\"1706\"><strong data-start=\"1613\" data-end=\"1627\">\u0627\u0644\u0646\u0648\u0639 3 SPD<\/strong> \u0647\u064a \u0627\u0644\u062e\u0637\u0648\u0629 \u0627\u0644\u0623\u062e\u064a\u0631\u0629. \u0625\u0646\u0647 \u064a\u062d\u0645\u064a \u0627\u0644\u0625\u0644\u0643\u062a\u0631\u0648\u0646\u064a\u0627\u062a \u0627\u0644\u062d\u0633\u0627\u0633\u0629 \u0645\u0646 \u0627\u0644\u0632\u064a\u0627\u062f\u0627\u062a \u0627\u0644\u0635\u063a\u064a\u0631\u0629 \u0648\u0627\u0644\u0633\u0631\u064a\u0639\u0629.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"4715\" data-end=\"4766\">\u0643\u064a\u0641\u064a\u0629 \u0627\u062e\u062a\u064a\u0627\u0631 \u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u061f<\/h2>\r\n<p data-start=\"4768\" data-end=\"4922\">\u0639\u0646\u062f \u0627\u062e\u062a\u064a\u0627\u0631 \u0623\u0641\u0636\u0644 \u062c\u0647\u0627\u0632 \u0644\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2\u060c \u064a\u062c\u0628 \u0623\u0646 \u064a\u0639\u062a\u0645\u062f \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0639\u0644\u0649 \u062a\u0648\u0627\u0641\u0642 \u0627\u0644\u0646\u0638\u0627\u0645 \u0648\u0645\u0633\u062a\u0648\u0649 \u0645\u062e\u0627\u0637\u0631 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0648\u062d\u0633\u0627\u0633\u064a\u0629 \u0627\u0644\u0645\u0639\u062f\u0627\u062a.<\/p>\r\n<p data-start=\"4924\" data-end=\"5057\"><strong data-start=\"4924\" data-end=\"4976\">1. \u0645\u0637\u0627\u0628\u0642\u0629 \u062c\u0647\u062f \u0627\u0644\u0646\u0638\u0627\u0645 \u0648\u062a\u0631\u062a\u064a\u0628 \u0627\u0644\u062a\u0623\u0631\u064a\u0636<\/strong><br data-start=\"4976\" data-end=\"4979\" \/>\u062a\u062a\u0637\u0644\u0628 \u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629 - TT\u060c \u0648TN-S\u060c \u0648TN-C\u060c \u0648IT - \u062a\u0643\u0648\u064a\u0646\u0627\u062a \u0645\u062e\u062a\u0644\u0641\u0629 \u0644\u0640 SPD:<\/p>\r\n\r\n<ul data-start=\"5058\" data-end=\"5212\">\r\n \t<li data-start=\"5058\" data-end=\"5104\">\r\n<p data-start=\"5060\" data-end=\"5104\"><strong data-start=\"5060\" data-end=\"5066\">4P<\/strong> (\u062d\u0645\u0627\u064a\u0629 \u0634\u0627\u0645\u0644\u0629) \u0644\u0623\u0646\u0638\u0645\u0629 TN.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5105\" data-end=\"5212\">\r\n<p data-start=\"5107\" data-end=\"5212\"><strong data-start=\"5107\" data-end=\"5114\">3+1<\/strong> \u0627\u0644\u062a\u0643\u0648\u064a\u0646 (\u062d\u0645\u0627\u064a\u0629 L-N \u0628\u0627\u0644\u0625\u0636\u0627\u0641\u0629 \u0625\u0644\u0649 \u0648\u062d\u062f\u0629 N-PE) \u0644\u0623\u0646\u0638\u0645\u0629 TT \u0644\u0644\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 \u0623\u062d\u062f\u0627\u062b \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0632\u0627\u0626\u062f N-PE.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"5214\" data-end=\"5404\"><strong data-start=\"5214\" data-end=\"5272\">2. \u062a\u062d\u062f\u064a\u062f Uc (\u0627\u0644\u062d\u062f \u0627\u0644\u0623\u0642\u0635\u0649 \u0644\u062c\u0647\u062f \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0645\u0633\u062a\u0645\u0631)<\/strong><br data-start=\"5272\" data-end=\"5275\" \/>\u064a\u062c\u0628 \u0623\u0646 \u064a\u0643\u0648\u0646 Uc \u0623\u0639\u0644\u0649 \u0642\u0644\u064a\u0644\u0627\u064b \u0645\u0646 \u062c\u0647\u062f \u0627\u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u0627\u0633\u0645\u064a \u0644\u0645\u0646\u0639 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u063a\u064a\u0631 \u0627\u0644\u0636\u0631\u0648\u0631\u064a \u0648\u0644\u0643\u0646\u0647 \u0645\u0646\u062e\u0641\u0636 \u0628\u062f\u0631\u062c\u0629 \u0643\u0627\u0641\u064a\u0629 \u0644\u062a\u0648\u0641\u064a\u0631 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0641\u0639\u0627\u0644\u0629.<\/p>\r\n<p data-start=\"5406\" data-end=\"5449\"><strong data-start=\"5406\" data-end=\"5447\">3. \u062a\u062d\u0642\u0642 \u0645\u0646 \u0642\u062f\u0631\u0629 \u0627\u0644\u062a\u0641\u0631\u064a\u063a \u0627\u0644\u062d\u0627\u0644\u064a\u0629<\/strong><\/p>\r\n\r\n<ul data-start=\"5450\" data-end=\"5570\">\r\n \t<li data-start=\"5450\" data-end=\"5496\">\r\n<p data-start=\"5452\" data-end=\"5496\"><strong data-start=\"5452\" data-end=\"5487\">\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0641\u0631\u064a\u063a \u0627\u0644\u0627\u0633\u0645\u064a (\u0641\u064a):<\/strong> 5-20 \u0643\u064a\u0644\u0648 \u0623\u0645\u0628\u064a\u0631.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5497\" data-end=\"5570\">\r\n<p data-start=\"5499\" data-end=\"5570\"><strong data-start=\"5499\" data-end=\"5536\">\u0627\u0644\u062d\u062f \u0627\u0644\u0623\u0642\u0635\u0649 \u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0641\u0631\u064a\u063a (\u0625\u064a\u0645\u0627\u0643\u0633):<\/strong> 20-80 \u0643\u064a\u0644\u0648 \u0623\u0645\u0628\u064a\u0631 \u062d\u0633\u0628 \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u062e\u0637\u0631.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"5572\" data-end=\"5721\"><strong data-start=\"5572\" data-end=\"5608\">4. \u0645\u0633\u062a\u0648\u0649 \u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u062c\u0647\u062f (\u0623\u0639\u0644\u0649)<\/strong><br data-start=\"5608\" data-end=\"5611\" \/>\u064a\u0639\u0646\u064a \u0627\u0644\u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0633\u0641\u0644\u064a \u062d\u0645\u0627\u064a\u0629 \u0623\u0641\u0636\u0644 - \u0627\u0633\u062a\u0647\u062f\u0641 \u2265 2.5 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0644\u0644\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u0639\u0627\u0645\u0629\u060c \u0648 \u2265 1.5 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0644\u0644\u0625\u0644\u0643\u062a\u0631\u0648\u0646\u064a\u0627\u062a \u0627\u0644\u062d\u0633\u0627\u0633\u0629.<\/p>\r\n<p data-start=\"5723\" data-end=\"5862\"><strong data-start=\"5723\" data-end=\"5767\">5. \u062a\u062d\u0645\u0644 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0632\u0627\u0626\u062f \u0627\u0644\u0645\u0624\u0642\u062a (TOV).<\/strong><br data-start=\"5767\" data-end=\"5770\" \/>\u062a\u0623\u0643\u062f \u0645\u0646 \u0642\u062f\u0631\u0629 SPD \u0639\u0644\u0649 \u0627\u0644\u0646\u062c\u0627\u0629 \u0645\u0646 \u0638\u0631\u0648\u0641 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0632\u0627\u0626\u062f \u0627\u0644\u0645\u0624\u0642\u062a\u0629 \u0627\u0644\u0646\u0627\u062a\u062c\u0629 \u0639\u0646 \u0627\u0644\u0623\u0639\u0637\u0627\u0644 \u0623\u0648 \u0623\u062d\u062f\u0627\u062b \u0627\u0644\u062a\u0628\u062f\u064a\u0644.<\/p>\r\n<p data-start=\"5864\" data-end=\"5892\"><strong data-start=\"5864\" data-end=\"5890\">6. \u0645\u064a\u0632\u0627\u062a \u0625\u0636\u0627\u0641\u064a\u0629<\/strong><\/p>\r\n\r\n<ul data-start=\"5893\" data-end=\"6019\">\r\n \t<li data-start=\"5893\" data-end=\"5935\">\r\n<p data-start=\"5895\" data-end=\"5935\">\u0648\u062d\u062f\u0627\u062a \u0642\u0627\u0628\u0644\u0629 \u0644\u0644\u062a\u0648\u0635\u064a\u0644 \u0644\u0644\u0635\u064a\u0627\u0646\u0629 \u0627\u0644\u0633\u0631\u064a\u0639\u0629.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5936\" data-end=\"5975\">\r\n<p data-start=\"5938\" data-end=\"5975\">\u0627\u062a\u0635\u0627\u0644\u0627\u062a \u0627\u0644\u062a\u0646\u0628\u064a\u0647 \u0639\u0646 \u0628\u0639\u062f \u0644\u0644\u0631\u0635\u062f.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5976\" data-end=\"6019\">\r\n<p data-start=\"5978\" data-end=\"6019\">\u0627\u0644\u0641\u0635\u0644 \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u0648\u0627\u0644\u0645\u0624\u0634\u0631\u0627\u062a \u0627\u0644\u0628\u0635\u0631\u064a\u0629.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"6026\" data-end=\"6076\">\u0643\u064a\u0641\u064a\u0629 \u062a\u0631\u0643\u064a\u0628 \u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2<\/h2>\r\n<a href=\"https:\/\/www.britecelectric.com\/ar\/attachment\/type-2-spd-install\/\" rel=\"attachment wp-att-2158\"><img class=\"alignnone size-full wp-image-2158\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/Type-2-SPD-install.jpg\" alt=\"\" width=\"732\" height=\"615\" \/><\/a>\r\n<p data-start=\"6078\" data-end=\"6144\"><strong data-start=\"6078\" data-end=\"6144\">\u0623\u0641\u0636\u0644 \u0645\u0645\u0627\u0631\u0633\u0627\u062a \u0627\u0644\u062a\u062b\u0628\u064a\u062a \u0645\u0646 \u0627\u0644\u062e\u0628\u0631\u0629 \u0627\u0644\u0647\u0646\u062f\u0633\u064a\u0629 \u0627\u0644\u0645\u064a\u062f\u0627\u0646\u064a\u0629:<\/strong><\/p>\r\n\r\n<ol data-start=\"6145\" data-end=\"7145\">\r\n \t<li data-start=\"6145\" data-end=\"6266\">\r\n<p data-start=\"6148\" data-end=\"6266\"><strong data-start=\"6148\" data-end=\"6160\">\u0645\u0648\u0642\u0639<\/strong> - \u0642\u0645 \u0628\u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0641\u064a \u0623\u0642\u0631\u0628 \u0645\u0643\u0627\u0646 \u0645\u0645\u0643\u0646 \u0645\u0646 \u0642\u0636\u0628\u0627\u0646 \u0627\u0644\u062a\u0648\u0635\u064a\u0644 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0644\u0644\u0648\u062d\u0629 \u0627\u0644\u062a\u0648\u0632\u064a\u0639 \u0623\u0648 \u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u062a\u064a \u062a\u0631\u064a\u062f \u062d\u0645\u0627\u064a\u062a\u0647\u0627.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6267\" data-end=\"6362\">\r\n<p data-start=\"6270\" data-end=\"6362\"><strong data-start=\"6270\" data-end=\"6293\">\u0627\u062a\u0635\u0627\u0644 \u0645\u062a\u0648\u0627\u0632\u064a<\/strong> \u2014 \u0639\u0627\u062f\u0629\u064b \u0645\u0627 \u064a\u062a\u0645 \u062a\u0648\u0635\u064a\u0644 \u0623\u062c\u0647\u0632\u0629 SPD \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2 \u0628\u0627\u0644\u062a\u0648\u0627\u0632\u064a \u0645\u0639 \u0645\u0635\u062f\u0631 \u0627\u0644\u0637\u0627\u0642\u0629.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6363\" data-end=\"6506\">\r\n<p data-start=\"6366\" data-end=\"6506\"><strong data-start=\"6366\" data-end=\"6381\">\u0637\u0648\u0644 \u0627\u0644\u0631\u0635\u0627\u0635<\/strong> - \u062d\u0627\u0641\u0638 \u0639\u0644\u0649 \u0627\u0644\u0637\u0648\u0644 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0644\u0644\u0645\u0648\u0635\u0644\u0627\u062a \u0627\u0644\u0637\u0648\u0631\u064a\u0629 \u0648\u0627\u0644\u0645\u062d\u0627\u064a\u062f\u0629 \u0648\u0627\u0644\u0623\u0631\u0636\u064a\u0629 \u0623\u0642\u0644 \u0645\u0646 0.5 \u0645\u062a\u0631 \u0644\u062a\u062c\u0646\u0628 \u0631\u0641\u0639 \u062c\u0647\u062f \u0627\u0644\u062d\u0645\u0627\u064a\u0629.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6507\" data-end=\"6619\">\r\n<p data-start=\"6510\" data-end=\"6619\"><strong data-start=\"6510\" data-end=\"6537\">\u0627\u0644\u0645\u0642\u0637\u0639 \u0627\u0644\u0639\u0631\u0636\u064a \u0644\u0644\u0645\u0648\u0635\u0644<\/strong> \u2014 \u0645\u0627 \u0644\u0627 \u064a\u0642\u0644 \u0639\u0646 6 \u0645\u0645\u00b2 \u0645\u0646 \u0627\u0644\u0646\u062d\u0627\u0633 \u0644\u0644\u0646\u0648\u0639 2\u061b \u0623\u062d\u062c\u0627\u0645 \u0623\u0643\u0628\u0631 \u0644\u0644\u0623\u062c\u0647\u0632\u0629 \u0630\u0627\u062a \u0627\u0644\u0633\u0639\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6620\" data-end=\"6716\">\r\n<p data-start=\"6623\" data-end=\"6716\"><strong data-start=\"6623\" data-end=\"6635\">\u0627\u0644\u062a\u0623\u0631\u064a\u0636<\/strong> - \u0627\u0644\u0627\u062a\u0635\u0627\u0644 \u0645\u0628\u0627\u0634\u0631\u0629 \u0628\u0634\u0631\u064a\u0637 \u0627\u0644\u0631\u0628\u0637 \u0627\u0644\u0631\u0626\u064a\u0633\u064a \u0627\u0644\u0645\u062a\u0633\u0627\u0648\u064a \u0627\u0644\u062c\u0647\u062f \u0628\u0623\u0642\u0635\u0631 \u0645\u0633\u0627\u0631.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6717\" data-end=\"6840\">\r\n<p data-start=\"6720\" data-end=\"6840\"><strong data-start=\"6720\" data-end=\"6746\">\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0632\u0627\u0626\u062f<\/strong> \u2014 Use fuses or circuit breakers sized according to the SPD's maximum short-circuit withstand.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6841\" data-end=\"7028\">\r\n<p data-start=\"6844\" data-end=\"7028\"><strong data-start=\"6844\" data-end=\"6880\">\u0627\u0644\u062a\u0646\u0633\u064a\u0642 \u0641\u064a \u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0645\u062a\u062a\u0627\u0644\u064a\u0629<\/strong> \u2014 \u0625\u0630\u0627 \u062a\u0645 \u062a\u0631\u0643\u064a\u0628\u0647 \u0623\u0633\u0641\u0644 \u062c\u0647\u0627\u0632 SPD \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 1\u060c \u0641\u062d\u0627\u0641\u0638 \u0639\u0644\u0649 \u0645\u0633\u0627\u0641\u0629 \u0641\u0635\u0644 (&gt; 10 \u0623\u0645\u062a\u0627\u0631) \u0623\u0648 \u0642\u0645 \u0628\u062a\u0631\u0643\u064a\u0628 \u0645\u062d\u062b \u0641\u0635\u0644 \u0644\u0636\u0645\u0627\u0646 \u062a\u0642\u0627\u0633\u0645 \u0627\u0644\u0637\u0627\u0642\u0629 \u0628\u0634\u0643\u0644 \u0645\u0646\u0627\u0633\u0628.<\/p>\r\n<\/li>\r\n \t<li data-start=\"7029\" data-end=\"7145\">\r\n<p data-start=\"7032\" data-end=\"7145\"><strong data-start=\"7032\" data-end=\"7058\">\u0627\u0644\u0623\u0633\u0644\u0627\u0643 \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0627\u0644\u0646\u0638\u0627\u0645<\/strong> \u2014 \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0623\u0646\u0638\u0645\u0629 TT\u060c \u0642\u0645 \u0628\u062a\u0636\u0645\u064a\u0646 \u0648\u062d\u062f\u0629 \u062d\u0645\u0627\u064a\u0629 N-PE \u0644\u0644\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 \u0627\u0644\u0632\u064a\u0627\u062f\u0627\u062a \u0627\u0644\u0645\u062d\u0627\u064a\u062f\u0629 \u0644\u0644\u0623\u0631\u0636.<\/p>\r\n<\/li>\r\n<\/ol>\r\n<p data-start=\"7147\" data-end=\"7255\">\u064a\u0636\u0645\u0646 \u0627\u062a\u0628\u0627\u0639 \u0647\u0630\u0647 \u0627\u0644\u0625\u0631\u0634\u0627\u062f\u0627\u062a \u0623\u0646 \u064a\u0639\u0645\u0644 SPD \u0648\u0641\u0642\u064b\u0627 \u0644\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0648\u064a\u062a\u0648\u0627\u0641\u0642 \u0645\u0639 \u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629.<\/p>\r\n\r\n<h2 data-start=\"7262\" data-end=\"7275\">\u062e\u0627\u062a\u0645\u0629<\/h2>\r\n<p data-start=\"7277\" data-end=\"7508\">A <em><a href=\"https:\/\/www.britecelectric.com\/ar\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"7279\" data-end=\"7313\">\u062c\u0647\u0627\u0632 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u0637\u0641\u0631\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2<\/strong><\/a><\/em> \u0647\u0648 \u0639\u0646\u0635\u0631 \u062d\u064a\u0648\u064a \u0641\u064a \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u0630\u0627\u062a \u0627\u0644\u0637\u0628\u0642\u0627\u062a. \u0641\u0647\u0648 \u064a\u062d\u0645\u064a \u0645\u0646 \u0627\u0644\u0632\u064a\u0627\u062f\u0627\u062a \u0627\u0644\u0645\u062a\u0628\u0642\u064a\u0629 \u0627\u0644\u0646\u0627\u062a\u062c\u0629 \u0639\u0646 \u0627\u0644\u0628\u0631\u0642 \u0648\u0623\u062d\u062f\u0627\u062b \u0627\u0644\u062a\u0628\u062f\u064a\u0644 \u0627\u0644\u062f\u0627\u062e\u0644\u064a\u060c \u0645\u0645\u0627 \u064a\u0636\u0645\u0646 \u0637\u0648\u0644 \u0639\u0645\u0631 \u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0648\u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0627\u0644\u062a\u0634\u063a\u064a\u0644.<\/p>\r\n<p data-start=\"7510\" data-end=\"7767\">\u0645\u0646 \u062e\u0644\u0627\u0644 \u0641\u0647\u0645 \u0645\u0628\u062f\u0623 \u0627\u0644\u0639\u0645\u0644 \u0648\u0642\u0648\u0627\u0639\u062f \u0627\u0644\u062a\u062b\u0628\u064a\u062a \u0648\u0645\u0639\u0644\u0645\u0627\u062a \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631\u060c \u064a\u0645\u0643\u0646 \u0644\u0644\u0645\u0647\u0646\u062f\u0633\u064a\u0646 \u0648\u0645\u062f\u064a\u0631\u064a \u0627\u0644\u0645\u0634\u062a\u0631\u064a\u0627\u062a \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062a\u064a \u062a\u0644\u0628\u064a \u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u0646\u0638\u0627\u0645\u060c \u0648\u062a\u062a\u0648\u0627\u0641\u0642 \u0645\u0639 IEC\/EN 61643-11\u060c \u0648\u062a\u0648\u0641\u0631 \u062d\u0645\u0627\u064a\u0629 \u0645\u0648\u062b\u0648\u0642\u0629 \u0644\u0633\u0646\u0648\u0627\u062a \u0642\u0627\u062f\u0645\u0629.<\/p>\r\n<p data-start=\"7769\" data-end=\"7951\">\u062a\u0645 \u062a\u062b\u0628\u064a\u062a \u062c\u0647\u0627\u0632 SPD \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2 \u0628\u0634\u0643\u0644 \u0635\u062d\u064a\u062d\u060c \u0648\u0647\u0648 \u0644\u064a\u0633 \u0645\u062c\u0631\u062f \u0645\u0643\u0648\u0646 - \u0628\u0644 \u0647\u0648 \u0628\u0648\u0644\u064a\u0635\u0629 \u062a\u0623\u0645\u064a\u0646 \u0644\u0646\u0638\u0627\u0645\u0643 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a. \u062a\u0639\u0644\u0645 \u0627\u0644\u0645\u0632\u064a\u062f \u0639\u0646 <strong><em><a class=\"\" href=\"https:\/\/www.britecelectric.com\/ar\/blog\/surge-protection-for-solar-photovoltaic-systems\/\" target=\"_blank\" rel=\"noopener\" data-start=\"1609\" data-end=\"1719\">\u062a\u0637\u0628\u064a\u0642\u0627\u062a SPD \u0627\u0644\u0634\u0645\u0633\u064a\u0629<\/a><\/em><\/strong> \u0648\u0643\u064a\u0641\u064a\u0629 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0646\u0627\u0633\u0628.<\/p>","protected":false},"featured_media":2160,"parent":0,"menu_order":127,"template":"","meta":{"_acf_changed":false},"blog_category":[9],"class_list":["post-2154","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-industry-news"],"acf":{"des":"A Type 2 Surge Protection Device protects electrical systems from residual surges and switching surges. It is installed at the main distribution board. It works with Type 1 and Type 3 SPDs to form layered protection. This blog explains how it works, where to use it, how to choose it, and how to install it.","txt":"<h2 data-start=\"226\" data-end=\"241\">Introduction<\/h2>\r\n<p data-start=\"243\" data-end=\"597\">A <a href=\"https:\/\/www.britecelectric.com\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\"><strong data-start=\"245\" data-end=\"279\">Type 2 Surge Protection Device<\/strong><\/a> (Type 2 SPD) is the backbone of surge protection inside modern electrical systems. Installed at the main distribution board or control cabinet, it acts as the second shield in a layered defense strategy \u2014 catching residual surges left by upstream Type 1 SPDs and suppressing transients generated inside the network.<\/p>\r\n<p data-start=\"599\" data-end=\"986\">These devices protect against 8\/20 \u03bcs impulse currents that occur from lightning-induced surges, switching events, or utility disturbances.<\/p>\r\nTo ensure reliable, long-term protection, engineers and technical buyers need to understand several key aspects of a Type 2 SPD:\r\n<ul>\r\n \t<li><b>Definition:<\/b> What is it?<\/li>\r\n \t<li><b>How it works:<\/b> Its operating principles.<\/li>\r\n \t<li><b>Standards:<\/b> Which regulations does it meet?<\/li>\r\n \t<li><b>Installation and Selection:<\/b> The rules for choosing and installing it correctly.<\/li>\r\n<\/ul>\r\n<h2 data-start=\"993\" data-end=\"1042\">Definition of a Type 2 Surge Protection Device<\/h2>\r\n<p data-start=\"1044\" data-end=\"1268\">According to the <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/65314\" target=\"_blank\" rel=\"noopener\"><em><strong>IEC\/EN 61643-11 standard<\/strong><\/em><\/a>, a **Type 2 SPD** is a Class II device. It is designed for locations that do not have direct lightning strikes. However, these locations still face a risk of strong transient overvoltages..<\/p>\r\n<p data-start=\"1270\" data-end=\"1290\">Key characteristics:<\/p>\r\n\r\n<ul data-start=\"1291\" data-end=\"1618\">\r\n \t<li data-start=\"1291\" data-end=\"1335\">\r\n<p data-start=\"1293\" data-end=\"1335\">Tested with 8\/20 \u03bcs current waveforms.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1336\" data-end=\"1466\">\r\n<p data-start=\"1338\" data-end=\"1466\">Typical nominal discharge current (In) is between 5\u201320 kA, with maximum discharge current (Imax) up to 40\u201380 kA.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1467\" data-end=\"1530\">\r\n<p data-start=\"1469\" data-end=\"1530\">Mounted on the load side of the electrical service panel.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1531\" data-end=\"1618\">\r\n<p data-start=\"1533\" data-end=\"1618\">Protects against both external residual surges and internal switching surges.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"1620\" data-end=\"1802\">In practical application, a Type 2 SPD sits after a Type 1 device and before any downstream Type 3 point-of-use protection, forming part of a multi-stage surge protection system.<\/p>\r\n<p data-start=\"1620\" data-end=\"1802\"><a href=\"https:\/\/www.britecelectric.com\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\"><img class=\"alignnone  wp-image-2160\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/BR-20-4P-1Type-2-Surge-Protection-Device.jpg-1024x1024.webp\" alt=\"\" width=\"900\" height=\"900\" \/><\/a><\/p>\r\n\r\n<h2 data-start=\"1809\" data-end=\"1859\">How does a <a href=\"https:\/\/www.britecelectric.com\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\">Type 2 Surge Protection Device<\/a> work?<\/h2>\r\n<p data-start=\"1861\" data-end=\"2143\">A Type 2 SPD operates on the voltage clamping principle. Under normal voltage, it remains passive. When a transient surge exceeds its maximum continuous operating voltage (Uc), its internal components switch rapidly to a conductive state, shunting excess energy to ground.<\/p>\r\n<p data-start=\"2145\" data-end=\"2176\"><strong data-start=\"2145\" data-end=\"2176\">Typical components include:<\/strong><\/p>\r\n\r\n<ul data-start=\"2177\" data-end=\"2557\">\r\n \t<li data-start=\"2177\" data-end=\"2285\">\r\n<p data-start=\"2179\" data-end=\"2285\"><strong data-start=\"2179\" data-end=\"2210\">MOV (Metal Oxide Varistor):<\/strong> The primary clamping element, absorbing surge energy and reducing voltage.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2286\" data-end=\"2385\">\r\n<p data-start=\"2288\" data-end=\"2385\"><strong data-start=\"2288\" data-end=\"2320\">Hybrid circuits (MOV + GDT):<\/strong> Combine high surge capacity with improved long-term reliability.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2386\" data-end=\"2470\">\r\n<p data-start=\"2388\" data-end=\"2470\"><strong data-start=\"2388\" data-end=\"2418\">Thermal disconnect system:<\/strong> Isolates the SPD at end-of-life to maintain safety.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2471\" data-end=\"2557\">\r\n<p data-start=\"2473\" data-end=\"2557\"><strong data-start=\"2473\" data-end=\"2494\">Status indicator:<\/strong> Visual window or contact output to show operational condition.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"2559\" data-end=\"2582\"><strong data-start=\"2559\" data-end=\"2582\">Operation sequence:<\/strong><\/p>\r\n\r\n<ol data-start=\"2583\" data-end=\"2882\">\r\n \t<li data-start=\"2583\" data-end=\"2645\">\r\n<p data-start=\"2586\" data-end=\"2645\"><strong data-start=\"2586\" data-end=\"2602\">Normal mode:<\/strong> High resistance, no impact on the circuit.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2646\" data-end=\"2699\">\r\n<p data-start=\"2649\" data-end=\"2699\"><strong data-start=\"2649\" data-end=\"2665\">Surge event:<\/strong> Voltage rises above the Uc threshold.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2700\" data-end=\"2819\">\r\n<p data-start=\"2703\" data-end=\"2819\"><strong data-start=\"2703\" data-end=\"2716\">Clamping:<\/strong> SPD diverts surge current to ground, lowering the voltage to a safe Up (voltage protection level).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2820\" data-end=\"2882\">\r\n<p data-start=\"2823\" data-end=\"2882\"><strong data-start=\"2823\" data-end=\"2836\">Recovery:<\/strong> SPD returns to high-resistance standby state.<\/p>\r\n<\/li>\r\n<\/ol>\r\n<h2 data-start=\"2889\" data-end=\"2940\">The function of a Type 2 Surge Protection Device<\/h2>\r\n<p data-start=\"2942\" data-end=\"3106\">The primary role of a surge protection device Type 2 is to limit transient overvoltages to a level that downstream equipment can withstand without damage.<\/p>\r\n<p data-start=\"3108\" data-end=\"3122\">Key functions:<\/p>\r\n\r\n<ul data-start=\"3123\" data-end=\"3659\">\r\n \t<li data-start=\"3123\" data-end=\"3228\">\r\n<p data-start=\"3125\" data-end=\"3228\"><strong data-start=\"3125\" data-end=\"3154\">Residual surge limitation<\/strong> \u2014 reduces voltage after a Type 1 SPD has absorbed the bulk of the energy.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3229\" data-end=\"3356\">\r\n<p data-start=\"3231\" data-end=\"3356\"><strong data-start=\"3231\" data-end=\"3262\">Switching surge suppression<\/strong> \u2014 mitigates transients from motor starts, pump switching, or other inductive load operations.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3357\" data-end=\"3471\">\r\n<p data-start=\"3359\" data-end=\"3471\"><strong data-start=\"3359\" data-end=\"3383\">Equipment protection<\/strong> \u2014 prevents damage to sensitive electronics, PLCs, automation systems, and control gear.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3472\" data-end=\"3544\">\r\n<p data-start=\"3474\" data-end=\"3544\"><strong data-start=\"3474\" data-end=\"3496\">System reliability<\/strong> \u2014 reduces downtime from surge-related failures.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3545\" data-end=\"3659\">\r\n<p data-start=\"3547\" data-end=\"3659\"><strong data-start=\"3547\" data-end=\"3568\">Part of a cascade<\/strong> \u2014 sits between the service entrance protection (Type 1) and point-of-use devices (Type 3).<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"3666\" data-end=\"3716\">Applications of Type 2 Surge Protection Devices<\/h2>\r\n<a href=\"https:\/\/www.britecelectric.com\/attachment\/spd-install\/\" rel=\"attachment wp-att-2159\"><img class=\"alignnone size-full wp-image-2159\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/SPD-install.jpg\" alt=\"\" width=\"745\" height=\"609\" \/><\/a>\r\n<p data-start=\"3718\" data-end=\"3747\">Type 2 SPDs are installed in:<\/p>\r\n\r\n<ul data-start=\"3748\" data-end=\"4151\">\r\n \t<li data-start=\"3748\" data-end=\"3810\">\r\n<p data-start=\"3750\" data-end=\"3810\">Industrial facilities with lightning protection systems.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3811\" data-end=\"3891\">\r\n<p data-start=\"3813\" data-end=\"3891\">Commercial buildings to protect HVAC, elevators, lighting, and IT systems.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3892\" data-end=\"3949\">\r\n<p data-start=\"3894\" data-end=\"3949\">Machine control cabinets for industrial automation.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3950\" data-end=\"4034\">\r\n<p data-start=\"3952\" data-end=\"4034\">Renewable energy systems\u2014such as solar PV inverters and wind turbine controls\u2014require robust <a href=\"https:\/\/www.britecelectric.com\/product_category\/pv-surge-protection-type-2\/\" target=\"_blank\" rel=\"noopener\">surge protection<\/a> (see our <strong><em><a class=\"\" href=\"https:\/\/www.britecelectric.com\/blog\/solar-surge-protection-devices-selection-guide\/\" target=\"_blank\" rel=\"noopener\" data-start=\"201\" data-end=\"334\">Solar Surge Protection Devices Selection Guide<\/a><\/em><\/strong> and <strong><em><a class=\"\" href=\"https:\/\/www.britecelectric.com\/blog\/surge-protection-for-solar-photovoltaic-systems\/\" target=\"_blank\" rel=\"noopener\" data-start=\"339\" data-end=\"474\">Surge Protection for Solar Photovoltaic Systems<\/a><\/em><\/strong>).<\/p>\r\n<\/li>\r\n \t<li data-start=\"4035\" data-end=\"4093\">\r\n<p data-start=\"4037\" data-end=\"4093\">Hospitals and data centers where uptime is critical.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4094\" data-end=\"4151\">\r\n<p data-start=\"4096\" data-end=\"4151\">Residential main panels for whole-house protection.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"262\" data-end=\"316\">Type 1, Type 2, and Type 3 Surge Protection Devices<\/h2>\r\n<p data-start=\"318\" data-end=\"648\">Surge protection devices have three main types. Each type has a different job in the electrical system. You can read more in our detailed guide here: <em><strong><a class=\"\" href=\"https:\/\/www.britecelectric.com\/blog\/difference-between-type-1-type-2-and-type-3-surge-protective-devices\/\" target=\"_blank\" rel=\"noopener\" data-start=\"468\" data-end=\"647\">Difference Between Type 1, Type 2, and Type 3 Surge Protective Devices<\/a>.<\/strong><\/em><\/p>\r\n\r\n<table style=\"width: 60.5183%;\">\r\n<tbody>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\"><strong><b>Feature<\/b><\/strong><\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\"><strong><b>Type 1 SPD<\/b><\/strong><\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\"><strong><b>Type 2 SPD<\/b><\/strong><\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\"><strong><b>Type 3 SPD<\/b><\/strong><\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\">Location<\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\">Installed at the service entrance.<\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\">Installed at the main distribution board.<\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\">Installed close to sensitive loads.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\">Test waveform<\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\">Tested with 10\/350 \u03bcs lightning impulse.<\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\">Tested with 8\/20 \u03bcs surge current.<\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\">Tested with 1.2\/50 \u03bcs voltage + 8\/20 \u03bcs current.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\">Purpose<\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\">Discharges direct lightning current.<\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\">Limits residual surges and switching surges.<\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\">Gives final protection for electronics.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\">Typical Up<\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\">\u2264 4 kV.<\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\">\u2264 2.5 kV.<\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\">\u2264 1.5 kV.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\">Examples<\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\">Buildings with a lightning protection system (LPS).<\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\">Control panels and sub-distribution boards.<\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\">IT equipment and home electronics.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<p data-start=\"1409\" data-end=\"1423\"><strong data-start=\"1409\" data-end=\"1421\">Summary:<\/strong><\/p>\r\n\r\n<ul data-start=\"1424\" data-end=\"1706\">\r\n \t<li data-start=\"1424\" data-end=\"1494\">\r\n<p data-start=\"1426\" data-end=\"1494\"><strong data-start=\"1426\" data-end=\"1440\">Type 1 SPD<\/strong> stops most of the high-energy surge from lightning.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1495\" data-end=\"1610\">\r\n<p data-start=\"1497\" data-end=\"1610\"><strong data-start=\"1497\" data-end=\"1511\">Type 2 SPD<\/strong> is the middle line of defense. It reduces remaining surge voltage and controls switching surges.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1611\" data-end=\"1706\">\r\n<p data-start=\"1613\" data-end=\"1706\"><strong data-start=\"1613\" data-end=\"1627\">Type 3 SPD<\/strong> is the last step. It protects sensitive electronics from small, fast surges.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"4715\" data-end=\"4766\">How to select the right surge protection device?<\/h2>\r\n<p data-start=\"4768\" data-end=\"4922\">When choosing the best Type 2 surge protection device, selection should be based on system compatibility, surge risk level, and equipment sensitivity.<\/p>\r\n<p data-start=\"4924\" data-end=\"5057\"><strong data-start=\"4924\" data-end=\"4976\">1. Match system voltage and earthing arrangement<\/strong><br data-start=\"4976\" data-end=\"4979\" \/>Different systems \u2014 TT, TN-S, TN-C, IT \u2014 require different SPD configurations:<\/p>\r\n\r\n<ul data-start=\"5058\" data-end=\"5212\">\r\n \t<li data-start=\"5058\" data-end=\"5104\">\r\n<p data-start=\"5060\" data-end=\"5104\"><strong data-start=\"5060\" data-end=\"5066\">4P<\/strong> (all-pole protection) for TN systems.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5105\" data-end=\"5212\">\r\n<p data-start=\"5107\" data-end=\"5212\"><strong data-start=\"5107\" data-end=\"5114\">3+1<\/strong> configuration (L-N protection plus N-PE module) for TT systems to handle N-PE overvoltage events.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"5214\" data-end=\"5404\"><strong data-start=\"5214\" data-end=\"5272\">2. Determine Uc (Maximum Continuous Operating Voltage)<\/strong><br data-start=\"5272\" data-end=\"5275\" \/>Uc should be slightly above the nominal system voltage to prevent unnecessary triggering but low enough for effective protection.<\/p>\r\n<p data-start=\"5406\" data-end=\"5449\"><strong data-start=\"5406\" data-end=\"5447\">3. Check discharge current capability<\/strong><\/p>\r\n\r\n<ul data-start=\"5450\" data-end=\"5570\">\r\n \t<li data-start=\"5450\" data-end=\"5496\">\r\n<p data-start=\"5452\" data-end=\"5496\"><strong data-start=\"5452\" data-end=\"5487\">Nominal discharge current (In):<\/strong> 5\u201320 kA.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5497\" data-end=\"5570\">\r\n<p data-start=\"5499\" data-end=\"5570\"><strong data-start=\"5499\" data-end=\"5536\">Maximum discharge current (Imax):<\/strong> 20\u201380 kA depending on risk level.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"5572\" data-end=\"5721\"><strong data-start=\"5572\" data-end=\"5608\">4. Voltage protection level (Up)<\/strong><br data-start=\"5608\" data-end=\"5611\" \/>Lower Up means better protection \u2014 aim for \u2264 2.5 kV for general equipment, \u2264 1.5 kV for sensitive electronics.<\/p>\r\n<p data-start=\"5723\" data-end=\"5862\"><strong data-start=\"5723\" data-end=\"5767\">5. Temporary overvoltage (TOV) withstand<\/strong><br data-start=\"5767\" data-end=\"5770\" \/>Ensure the SPD can survive temporary overvoltage conditions from faults or switching events.<\/p>\r\n<p data-start=\"5864\" data-end=\"5892\"><strong data-start=\"5864\" data-end=\"5890\">6. Additional features<\/strong><\/p>\r\n\r\n<ul data-start=\"5893\" data-end=\"6019\">\r\n \t<li data-start=\"5893\" data-end=\"5935\">\r\n<p data-start=\"5895\" data-end=\"5935\">Pluggable modules for quick maintenance.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5936\" data-end=\"5975\">\r\n<p data-start=\"5938\" data-end=\"5975\">Remote alarm contacts for monitoring.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5976\" data-end=\"6019\">\r\n<p data-start=\"5978\" data-end=\"6019\">Thermal disconnect and visual indicators.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"6026\" data-end=\"6076\">How to install a Type 2 surge protection device<\/h2>\r\n<a href=\"https:\/\/www.britecelectric.com\/attachment\/type-2-spd-install\/\" rel=\"attachment wp-att-2158\"><img class=\"alignnone size-full wp-image-2158\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/Type-2-SPD-install.jpg\" alt=\"\" width=\"732\" height=\"615\" \/><\/a>\r\n<p data-start=\"6078\" data-end=\"6144\"><strong data-start=\"6078\" data-end=\"6144\">Installation best practices from field engineering experience:<\/strong><\/p>\r\n\r\n<ol data-start=\"6145\" data-end=\"7145\">\r\n \t<li data-start=\"6145\" data-end=\"6266\">\r\n<p data-start=\"6148\" data-end=\"6266\"><strong data-start=\"6148\" data-end=\"6160\">Location<\/strong> \u2014 Mount as close as possible to the main distribution board busbars or the equipment you want to protect.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6267\" data-end=\"6362\">\r\n<p data-start=\"6270\" data-end=\"6362\"><strong data-start=\"6270\" data-end=\"6293\">Parallel connection<\/strong> \u2014 Type 2 SPDs are usually connected in parallel to the power supply.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6363\" data-end=\"6506\">\r\n<p data-start=\"6366\" data-end=\"6506\"><strong data-start=\"6366\" data-end=\"6381\">Lead length<\/strong> \u2014 Keep the combined length of phase, neutral, and ground conductors under 0.5 m to avoid raising the protection voltage.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6507\" data-end=\"6619\">\r\n<p data-start=\"6510\" data-end=\"6619\"><strong data-start=\"6510\" data-end=\"6537\">Conductor cross-section<\/strong> \u2014 At least 6 mm\u00b2 copper for Type 2; larger sizes for higher-capacity devices.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6620\" data-end=\"6716\">\r\n<p data-start=\"6623\" data-end=\"6716\"><strong data-start=\"6623\" data-end=\"6635\">Earthing<\/strong> \u2014 Connect directly to the main equipotential bonding bar with the shortest path.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6717\" data-end=\"6840\">\r\n<p data-start=\"6720\" data-end=\"6840\"><strong data-start=\"6720\" data-end=\"6746\">Overcurrent protection<\/strong> \u2014 Use fuses or circuit breakers sized according to the SPD's maximum short-circuit withstand.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6841\" data-end=\"7028\">\r\n<p data-start=\"6844\" data-end=\"7028\"><strong data-start=\"6844\" data-end=\"6880\">Coordination in cascaded systems<\/strong> \u2014 If installed downstream of a Type 1 SPD, maintain a separation distance (&gt;10 m) or install a decoupling inductor to ensure proper energy sharing.<\/p>\r\n<\/li>\r\n \t<li data-start=\"7029\" data-end=\"7145\">\r\n<p data-start=\"7032\" data-end=\"7145\"><strong data-start=\"7032\" data-end=\"7058\">System-specific wiring<\/strong> \u2014 For TT systems, include an N-PE protection module to handle neutral-to-earth surges.<\/p>\r\n<\/li>\r\n<\/ol>\r\n<p data-start=\"7147\" data-end=\"7255\">Following these guidelines ensures the SPD performs to specification and complies with electrical standards.<\/p>\r\n\r\n<h2 data-start=\"7262\" data-end=\"7275\">Conclusion<\/h2>\r\n<p data-start=\"7277\" data-end=\"7508\">A <em><a href=\"https:\/\/www.britecelectric.com\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"7279\" data-end=\"7313\">Type 2 Surge Protection Device<\/strong><\/a><\/em> is a vital element in layered electrical protection. It safeguards against residual surges from lightning and internal switching events, ensuring equipment longevity and operational stability.<\/p>\r\n<p data-start=\"7510\" data-end=\"7767\">By understanding its working principle, installation rules, and selection parameters, engineers and procurement managers can specify devices that meet system requirements, comply with IEC\/EN 61643-11, and deliver reliable protection for years to come.<\/p>\r\n<p data-start=\"7769\" data-end=\"7951\">Correctly installed, a Type 2 SPD is not just a component \u2014 it\u2019s an insurance policy for your electrical system. Learn more about <strong><em><a class=\"\" href=\"https:\/\/www.britecelectric.com\/blog\/surge-protection-for-solar-photovoltaic-systems\/\" target=\"_blank\" rel=\"noopener\" data-start=\"1609\" data-end=\"1719\">solar SPD applications<\/a><\/em><\/strong> and how to choose the right one.<\/p>"},"_links":{"self":[{"href":"https:\/\/www.britecelectric.com\/ar\/wp-json\/wp\/v2\/blog\/2154","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/ar\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/ar\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/ar\/wp-json\/wp\/v2\/media\/2160"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/ar\/wp-json\/wp\/v2\/media?parent=2154"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/ar\/wp-json\/wp\/v2\/blog_category?post=2154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}