{"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\/ko\/blog\/what-is-a-type-2-surge-protection-device\/","title":{"rendered":"\uc720\ud615 2 \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58\ub780 \ubb34\uc5c7\uc785\ub2c8\uae4c?"},"content":{"rendered":"<h2 data-start=\"226\" data-end=\"241\">\uc18c\uac1c<\/h2>\r\n<p data-start=\"243\" data-end=\"597\">A <a href=\"https:\/\/www.britecelectric.com\/ko\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\"><strong data-start=\"245\" data-end=\"279\">\uc720\ud615 2 \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58<\/strong><\/a> (\uc720\ud615 2 SPD)\ub294 \ud604\ub300 \uc804\uae30 \uc2dc\uc2a4\ud15c \ub0b4\ubd80\uc758 \uc11c\uc9c0 \ubcf4\ud638\uc758 \uc911\ucd94\uc785\ub2c8\ub2e4. \uc8fc \ubc30\uc804\ubc18 \ub610\ub294 \uc81c\uc5b4 \uce90\ube44\ub2db\uc5d0 \uc124\uce58\ub418\uc5b4 \uacc4\uce35\ud615 \ubc29\uc5b4 \uc804\ub7b5\uc5d0\uc11c \ub450 \ubc88\uc9f8 \ucc28\ud3d0 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uc989, \uc5c5\uc2a4\ud2b8\ub9bc Type 1 SPD\uac00 \ub0a8\uae34 \uc794\ub958 \uc11c\uc9c0\ub97c \ud3ec\ucc29\ud558\uace0 \ub124\ud2b8\uc6cc\ud06c \ub0b4\ubd80\uc5d0\uc11c \uc0dd\uc131\ub41c \uacfc\ub3c4 \uc804\ub958\ub97c \uc5b5\uc81c\ud569\ub2c8\ub2e4.<\/p>\r\n<p data-start=\"599\" data-end=\"986\">\uc774 \uc7a5\uce58\ub294 \ubc88\uac1c\ub85c \uc778\ud55c \uc11c\uc9c0, \uc2a4\uc704\uce6d \uc774\ubca4\ud2b8 \ub610\ub294 \uc720\ud2f8\ub9ac\ud2f0 \ubc29\ud574\ub85c \uc778\ud574 \ubc1c\uc0dd\ud558\ub294 8\/20\u03bcs \uc784\ud384\uc2a4 \uc804\ub958\ub85c\ubd80\ud130 \ubcf4\ud638\ud569\ub2c8\ub2e4.<\/p>\r\n\uc548\uc815\uc801\uc774\uace0 \uc7a5\uae30\uc801\uc778 \ubcf4\ud638\ub97c \ubcf4\uc7a5\ud558\ub824\uba74 \uc5d4\uc9c0\ub2c8\uc5b4\uc640 \uae30\uc220 \uad6c\ub9e4\uc790\ub294 Type 2 SPD\uc758 \uba87 \uac00\uc9c0 \uc8fc\uc694 \uce21\uba74\uc744 \uc774\ud574\ud574\uc57c \ud569\ub2c8\ub2e4.\r\n<ul>\r\n \t<li><b>\uc815\uc758:<\/b> \uadf8\uac83\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/li>\r\n \t<li><b>\uc791\ub3d9 \ubc29\uc2dd:<\/b> \uc791\ub3d9 \uc6d0\ub9ac.<\/li>\r\n \t<li><b>\ud45c\uc900:<\/b> \uc5b4\ub5a4 \uaddc\uc815\uc744 \ucda9\uc871\ud558\ub098\uc694?<\/li>\r\n \t<li><b>\uc124\uce58 \ubc0f \uc120\ud0dd:<\/b> \uc62c\ubc14\ub974\uac8c \uc120\ud0dd\ud558\uace0 \uc124\uce58\ud558\ub294 \uaddc\uce59.<\/li>\r\n<\/ul>\r\n<h2 data-start=\"993\" data-end=\"1042\">\uc720\ud615 2 \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58\uc758 \uc815\uc758<\/h2>\r\n<p data-start=\"1044\" data-end=\"1268\">\uc5d0 \ub530\ub974\uba74 <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/65314\" target=\"_blank\" rel=\"noopener\"><em><strong>IEC\/EN 61643-11 \ud45c\uc900<\/strong><\/em><\/a>, **\uc720\ud615 2 SPD**\ub294 \ud074\ub798\uc2a4 II \uc7a5\uce58\uc785\ub2c8\ub2e4. \uc9c1\uc811\uc801\uc778 \ub099\ub8b0\uac00 \uc5c6\ub294 \uc7a5\uc18c\ub97c \uc704\ud574 \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc774\ub7ec\ud55c \uc704\uce58\ub294 \uc5ec\uc804\ud788 \uac15\ud55c \uacfc\ub3c4 \uacfc\uc804\uc555\uc758 \uc704\ud5d8\uc5d0 \uc9c1\uba74\ud574 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\r\n<p data-start=\"1270\" data-end=\"1290\">\uc8fc\uc694 \ud2b9\uc9d5:<\/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\">8\/20\u03bcs \uc804\ub958 \ud30c\ud615\uc73c\ub85c \ud14c\uc2a4\ud2b8\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1336\" data-end=\"1466\">\r\n<p data-start=\"1338\" data-end=\"1466\">\uc77c\ubc18\uc801\uc778 \uacf5\uce6d \ubc29\uc804 \uc804\ub958(In)\ub294 5~20kA \uc0ac\uc774\uc774\uace0 \ucd5c\ub300 \ubc29\uc804 \uc804\ub958(Imax)\ub294 \ucd5c\ub300 40~80kA\uc785\ub2c8\ub2e4.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1467\" data-end=\"1530\">\r\n<p data-start=\"1469\" data-end=\"1530\">\uc804\uae30 \uc11c\ube44\uc2a4 \ud328\ub110\uc758 \ubd80\ud558\uce21\uc5d0 \uc7a5\ucc29\ub429\ub2c8\ub2e4.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1531\" data-end=\"1618\">\r\n<p data-start=\"1533\" data-end=\"1618\">\uc678\ubd80 \uc794\ub958 \uc11c\uc9c0\uc640 \ub0b4\ubd80 \uc2a4\uc704\uce6d \uc11c\uc9c0\ub85c\ubd80\ud130 \ubcf4\ud638\ud569\ub2c8\ub2e4.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"1620\" data-end=\"1802\">\uc2e4\uc81c \uc751\uc6a9 \ubd84\uc57c\uc5d0\uc11c \uc720\ud615 2 SPD\ub294 \uc720\ud615 1 \uc7a5\uce58 \ub4a4\uc640 \ub2e4\uc6b4\uc2a4\ud2b8\ub9bc \uc720\ud615 3 \uc0ac\uc6a9 \uc9c0\uc810 \ubcf4\ud638 \uc55e\uc5d0 \uc704\uce58\ud558\uc5ec \ub2e4\ub2e8\uacc4 \uc11c\uc9c0 \ubcf4\ud638 \uc2dc\uc2a4\ud15c\uc758 \uc77c\ubd80\ub97c \uad6c\uc131\ud569\ub2c8\ub2e4.<\/p>\r\n<p data-start=\"1620\" data-end=\"1802\"><a href=\"https:\/\/www.britecelectric.com\/ko\/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\">\uc5b4\ub5bb\uac8c <a href=\"https:\/\/www.britecelectric.com\/ko\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\">\uc720\ud615 2 \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58<\/a> \uc77c\ud558\ub2e4?<\/h2>\r\n<p data-start=\"1861\" data-end=\"2143\">\uc720\ud615 2 SPD\ub294 \uc804\uc555 \ud074\ub7a8\ud551 \uc6d0\ub9ac\uc5d0 \ub530\ub77c \uc791\ub3d9\ud569\ub2c8\ub2e4. \uc815\uc0c1 \uc804\uc555\uc5d0\uc11c\ub294 \uc218\ub3d9 \uc0c1\ud0dc\ub85c \uc720\uc9c0\ub429\ub2c8\ub2e4. \uacfc\ub3c4 \uc11c\uc9c0\uac00 \ucd5c\ub300 \uc5f0\uc18d \uc791\ub3d9 \uc804\uc555(Uc)\uc744 \ucd08\uacfc\ud558\uba74 \ub0b4\ubd80 \uad6c\uc131 \uc694\uc18c\uac00 \uc804\ub3c4\uc131 \uc0c1\ud0dc\ub85c \ube60\ub974\uac8c \uc804\ud658\ub418\uc5b4 \uacfc\ub3c4\ud55c \uc5d0\ub108\uc9c0\ub97c \uc811\uc9c0\ub85c \uc804\ud658\ud569\ub2c8\ub2e4.<\/p>\r\n<p data-start=\"2145\" data-end=\"2176\"><strong data-start=\"2145\" data-end=\"2176\">\uc77c\ubc18\uc801\uc778 \uad6c\uc131 \uc694\uc18c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/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(\uae08\uc18d \uc0b0\ud654\ubb3c \ubc30\ub9ac\uc2a4\ud130):<\/strong> \uc11c\uc9c0 \uc5d0\ub108\uc9c0\ub97c \ud761\uc218\ud558\uace0 \uc804\uc555\uc744 \uac10\uc18c\uc2dc\ud0a4\ub294 \uae30\ubcf8 \ud074\ub7a8\ud551 \uc694\uc18c\uc785\ub2c8\ub2e4.<\/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\">\ud558\uc774\ube0c\ub9ac\ub4dc \ud68c\ub85c(MOV + GDT):<\/strong> \ub192\uc740 \uc11c\uc9c0 \uc6a9\ub7c9\uacfc \ud5a5\uc0c1\ub41c \uc7a5\uae30 \uc2e0\ub8b0\uc131\uc744 \uacb0\ud569\ud569\ub2c8\ub2e4.<\/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\">\uc5f4 \ubd84\ub9ac \uc2dc\uc2a4\ud15c:<\/strong> \uc218\uba85\uc774 \ub2e4\ud55c \uc2dc\uc810\uc5d0 SPD\ub97c \ubd84\ub9ac\ud558\uc5ec \uc548\uc804\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/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\">\uc0c1\ud0dc \ud45c\uc2dc\uae30:<\/strong> \uc791\ub3d9 \uc0c1\ud0dc\ub97c \ud45c\uc2dc\ud558\ub294 \uc2dc\uac01\uc801 \ucc3d \ub610\ub294 \uc811\uc810 \ucd9c\ub825.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"2559\" data-end=\"2582\"><strong data-start=\"2559\" data-end=\"2582\">\uc791\ub3d9 \uc21c\uc11c:<\/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\">\uc77c\ubc18 \ubaa8\ub4dc:<\/strong> \uc800\ud56d\uc774 \ub192\uc544 \ud68c\ub85c\uc5d0 \uc601\ud5a5\uc744 \uc8fc\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/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\">\uae09\uc99d \uc774\ubca4\ud2b8:<\/strong> \uc804\uc555\uc774 Uc \uc784\uacc4\uac12 \uc774\uc0c1\uc73c\ub85c \uc0c1\uc2b9\ud569\ub2c8\ub2e4.<\/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\">\ud074\ub7a8\ud551:<\/strong> SPD\ub294 \uc11c\uc9c0 \uc804\ub958\ub97c \uc811\uc9c0\ub85c \uc804\ud658\ud558\uc5ec \uc804\uc555\uc744 \uc548\uc804\ud55c Up(\uc804\uc555 \ubcf4\ud638 \uc218\uc900)\uc73c\ub85c \ub0ae\ucda5\ub2c8\ub2e4.<\/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\">\ud68c\ubcf5:<\/strong> SPD\ub294 \uace0\uc800\ud56d \ub300\uae30 \uc0c1\ud0dc\ub85c \ubcf5\uadc0\ud569\ub2c8\ub2e4.<\/p>\r\n<\/li>\r\n<\/ol>\r\n<h2 data-start=\"2889\" data-end=\"2940\">Type 2 \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58\uc758 \uae30\ub2a5<\/h2>\r\n<p data-start=\"2942\" data-end=\"3106\">\uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58 \uc720\ud615 2\uc758 \uc8fc\uc694 \uc5ed\ud560\uc740 \ub2e4\uc6b4\uc2a4\ud2b8\ub9bc \uc7a5\ube44\uac00 \uc190\uc0c1 \uc5c6\uc774 \uacac\ub51c \uc218 \uc788\ub294 \uc218\uc900\uc73c\ub85c \uc77c\uc2dc\uc801\uc778 \uacfc\uc804\uc555\uc744 \uc81c\ud55c\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\r\n<p data-start=\"3108\" data-end=\"3122\">\uc8fc\uc694 \uae30\ub2a5:<\/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\">\uc794\uc5ec \uc11c\uc9c0 \uc81c\ud55c<\/strong> \u2014 \uc720\ud615 1 SPD\uac00 \ub300\ubd80\ubd84\uc758 \uc5d0\ub108\uc9c0\ub97c \ud761\uc218\ud55c \ud6c4 \uc804\uc555\uc744 \uc904\uc785\ub2c8\ub2e4.<\/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\">\uc2a4\uc704\uce6d \uc11c\uc9c0 \uc5b5\uc81c<\/strong> \u2014 \ubaa8\ud130 \uc2dc\ub3d9, \ud38c\ud504 \uc804\ud658 \ub610\ub294 \uae30\ud0c0 \uc720\ub3c4 \ubd80\ud558 \uc791\ub3d9\uc73c\ub85c \uc778\ud55c \uacfc\ub3c4 \ud604\uc0c1\uc744 \uc644\ud654\ud569\ub2c8\ub2e4.<\/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\">\uc7a5\ube44 \ubcf4\ud638<\/strong> \u2014 \ubbfc\uac10\ud55c \uc804\uc790 \uc7a5\uce58, PLC, \uc790\ub3d9\ud654 \uc2dc\uc2a4\ud15c \ubc0f \uc81c\uc5b4 \uc7a5\uce58\uc758 \uc190\uc0c1\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4.<\/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\">\uc2dc\uc2a4\ud15c \uc2e0\ub8b0\uc131<\/strong> \u2014 \uc11c\uc9c0 \uad00\ub828 \uc624\ub958\ub85c \uc778\ud55c \uac00\ub3d9 \uc911\uc9c0 \uc2dc\uac04\uc744 \uc904\uc785\ub2c8\ub2e4.<\/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\">\uce90\uc2a4\ucf00\uc774\ub4dc\uc758 \uc77c\ubd80<\/strong> \u2014 \uc11c\ube44\uc2a4 \uc785\uad6c \ubcf4\ud638(\uc720\ud615 1)\uc640 \uc0ac\uc6a9 \uc9c0\uc810 \uc7a5\uce58(\uc720\ud615 3) \uc0ac\uc774\uc5d0 \uc704\uce58\ud569\ub2c8\ub2e4.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"3666\" data-end=\"3716\">\uc720\ud615 2 \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58\uc758 \uc751\uc6a9<\/h2>\r\n<a href=\"https:\/\/www.britecelectric.com\/ko\/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\">\uc720\ud615 2 SPD\ub294 \ub2e4\uc74c \uc704\uce58\uc5d0 \uc124\uce58\ub429\ub2c8\ub2e4.<\/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\">\ub099\ub8b0 \ubcf4\ud638 \uc2dc\uc2a4\ud15c\uc744 \uac16\ucd98 \uc0b0\uc5c5 \uc2dc\uc124.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3811\" data-end=\"3891\">\r\n<p data-start=\"3813\" data-end=\"3891\">HVAC, \uc5d8\ub9ac\ubca0\uc774\ud130, \uc870\uba85 \ubc0f IT \uc2dc\uc2a4\ud15c\uc744 \ubcf4\ud638\ud558\ub294 \uc0c1\uc5c5\uc6a9 \uac74\ubb3c.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3892\" data-end=\"3949\">\r\n<p data-start=\"3894\" data-end=\"3949\">\uc0b0\uc5c5 \uc790\ub3d9\ud654\uc6a9 \uae30\uacc4 \uc81c\uc5b4 \uce90\ube44\ub2db.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3950\" data-end=\"4034\">\r\n<p data-start=\"3952\" data-end=\"4034\">\ud0dc\uc591\uad11 PV \uc778\ubc84\ud130 \ubc0f \ud48d\ub825 \ud130\ube48 \uc81c\uc5b4\uc640 \uac19\uc740 \uc7ac\uc0dd \uc5d0\ub108\uc9c0 \uc2dc\uc2a4\ud15c\uc5d0\ub294 \uac15\ub825\ud55c \uc131\ub2a5\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. <a href=\"https:\/\/www.britecelectric.com\/ko\/product_category\/pv-surge-protection-type-2\/\" target=\"_blank\" rel=\"noopener\">\uc11c\uc9c0 \ubcf4\ud638<\/a> (\uc6b0\ub9ac\uc758 <strong><em><a class=\"\" href=\"https:\/\/www.britecelectric.com\/ko\/blog\/solar-surge-protection-devices-selection-guide\/\" target=\"_blank\" rel=\"noopener\" data-start=\"201\" data-end=\"334\">\ud0dc\uc591\uad11 \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58 \uc120\ud0dd \uac00\uc774\ub4dc<\/a><\/em><\/strong> \uadf8\ub9ac\uace0 <strong><em><a class=\"\" href=\"https:\/\/www.britecelectric.com\/ko\/blog\/surge-protection-for-solar-photovoltaic-systems\/\" target=\"_blank\" rel=\"noopener\" data-start=\"339\" data-end=\"474\">\ud0dc\uc591\uad11\ubc1c\uc804 \uc2dc\uc2a4\ud15c\uc6a9 \uc11c\uc9c0 \ubcf4\ud638<\/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\">\uac00\ub3d9 \uc2dc\uac04\uc774 \uc911\uc694\ud55c \ubcd1\uc6d0 \ubc0f \ub370\uc774\ud130 \uc13c\ud130.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4094\" data-end=\"4151\">\r\n<p data-start=\"4096\" data-end=\"4151\">\uc9d1 \uc804\uccb4\ub97c \ubcf4\ud638\ud558\uae30 \uc704\ud55c \uc8fc\uac70\uc6a9 \uba54\uc778 \ud328\ub110.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"262\" data-end=\"316\">\uc720\ud615 1, \uc720\ud615 2 \ubc0f \uc720\ud615 3 \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58<\/h2>\r\n<p data-start=\"318\" data-end=\"648\">\uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58\uc5d0\ub294 \uc138 \uac00\uc9c0 \uc8fc\uc694 \uc720\ud615\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uac01 \uc720\ud615\uc740 \uc804\uae30 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uc11c\ub85c \ub2e4\ub978 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uc5ec\uae30\uc5d0\uc11c \uc790\uc138\ud55c \uac00\uc774\ub4dc\ub97c \uc77d\uc5b4\ubcf4\uc2e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <em><strong><a class=\"\" href=\"https:\/\/www.britecelectric.com\/ko\/blog\/difference-between-type-1-type-2-and-type-3-surge-protective-devices\/\" target=\"_blank\" rel=\"noopener\" data-start=\"468\" data-end=\"647\">\uc720\ud615 1, \uc720\ud615 2, \uc720\ud615 3 \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58\uc758 \ucc28\uc774\uc810<\/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>\ud2b9\uc9d5<\/b><\/strong><\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\"><strong><b>\uc720\ud615 1 SPD<\/b><\/strong><\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\"><strong><b>\uc720\ud615 2 SPD<\/b><\/strong><\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\"><strong><b>\uc720\ud615 3 SPD<\/b><\/strong><\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\">\uc704\uce58<\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\">\uc11c\ube44\uc2a4 \uc785\uad6c\uc5d0 \uc124\uce58\ub429\ub2c8\ub2e4.<\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\">\uc8fc \ubc30\uc804\ubc18\uc5d0 \uc124\uce58\ub429\ub2c8\ub2e4.<\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\">\ubbfc\uac10\ud55c \ubd80\ud558 \uac00\uae4c\uc774\uc5d0 \uc124\uce58\ub429\ub2c8\ub2e4.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\">\ud14c\uc2a4\ud2b8 \ud30c\ud615<\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\">10\/350\u03bcs \ub099\ub8b0 \ucda9\uaca9\uc73c\ub85c \ud14c\uc2a4\ud2b8\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\">8\/20\u03bcs \uc11c\uc9c0 \uc804\ub958\ub85c \ud14c\uc2a4\ud2b8\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\">1.2\/50\u03bcs \uc804\uc555 + 8\/20\u03bcs \uc804\ub958\ub85c \ud14c\uc2a4\ud2b8\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\">\ubaa9\uc801<\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\">\uc9c1\uc811\uc801\uc778 \ub099\ub8b0 \uc804\ub958\ub97c \ubc29\uc804\ud569\ub2c8\ub2e4.<\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\">\uc794\ub958 \uc11c\uc9c0 \ubc0f \uc2a4\uc704\uce6d \uc11c\uc9c0\ub97c \uc81c\ud55c\ud569\ub2c8\ub2e4.<\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\">\uc804\uc790 \uc81c\ud488\uc5d0 \ub300\ud55c \ucd5c\uc885 \ubcf4\ud638 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\">\uc77c\ubc18\uc801\uc778 \uc0c1\uc2b9<\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\">4kV \uc774\ud558.<\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\">2.5kV \uc774\ud558.<\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\">1.5kV \uc774\ud558.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"width: 20.4466%;\" width=\"142\">\uc608<\/td>\r\n<td style=\"width: 25.0372%;\" width=\"142\">\ub099\ub8b0 \ubcf4\ud638 \uc2dc\uc2a4\ud15c(LPS)\uc744 \uac16\ucd98 \uac74\ubb3c.<\/td>\r\n<td style=\"width: 28.1389%;\" width=\"142\">\uc81c\uc5b4\ud310 \ubc0f \ud558\uc704 \ubc30\uc804\ubc18.<\/td>\r\n<td style=\"width: 58.2638%;\" width=\"142\">IT \uc7a5\ube44 \ubc0f \uac00\uc804 \uc81c\ud488.<\/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\">\uc694\uc57d:<\/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\">\uc720\ud615 1 SPD<\/strong> \ubc88\uac1c\ub85c \uc778\ud55c \uace0\uc5d0\ub108\uc9c0 \uc11c\uc9c0\uc758 \ub300\ubd80\ubd84\uc744 \ucc28\ub2e8\ud569\ub2c8\ub2e4.<\/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\">\uc720\ud615 2 SPD<\/strong> \uc218\ube44\uc758 \uc911\uac04\uc120\uc774\ub2e4. \uc794\ub958 \uc11c\uc9c0 \uc804\uc555\uc744 \uac10\uc18c\uc2dc\ud0a4\uace0 \uc2a4\uc704\uce6d \uc11c\uc9c0\ub97c \uc81c\uc5b4\ud569\ub2c8\ub2e4.<\/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\">\uc720\ud615 3 SPD<\/strong> \ub9c8\uc9c0\ub9c9 \ub2e8\uacc4\uc785\ub2c8\ub2e4. \uc791\uace0 \ube60\ub978 \uc11c\uc9c0\ub85c\ubd80\ud130 \ubbfc\uac10\ud55c \uc804\uc790 \uc7a5\uce58\ub97c \ubcf4\ud638\ud569\ub2c8\ub2e4.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"4715\" data-end=\"4766\">\uc62c\ubc14\ub978 \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58\ub97c \uc120\ud0dd\ud558\ub294 \ubc29\ubc95\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/h2>\r\n<p data-start=\"4768\" data-end=\"4922\">\ucd5c\uace0\uc758 Type 2 \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58\ub97c \uc120\ud0dd\ud560 \ub54c\ub294 \uc2dc\uc2a4\ud15c \ud638\ud658\uc131, \uc11c\uc9c0 \uc704\ud5d8 \uc218\uc900 \ubc0f \uc7a5\ube44 \ubbfc\uac10\ub3c4\ub97c \uae30\uc900\uc73c\ub85c \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\r\n<p data-start=\"4924\" data-end=\"5057\"><strong data-start=\"4924\" data-end=\"4976\">1. \uc2dc\uc2a4\ud15c \uc804\uc555\uacfc \uc811\uc9c0 \ubc30\uc5f4\uc744 \uc77c\uce58\uc2dc\ud0a4\uc2ed\uc2dc\uc624.<\/strong><br data-start=\"4976\" data-end=\"4979\" \/>TT, TN-S, TN-C, IT \ub4f1 \ub2e4\uc591\ud55c \uc2dc\uc2a4\ud15c\uc5d0\ub294 \ub2e4\uc591\ud55c SPD \uad6c\uc131\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/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> (\uc804\uadf9 \ubcf4\ud638) TN \uc2dc\uc2a4\ud15c\uc6a9.<\/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> N-PE \uacfc\uc804\uc555 \uc774\ubca4\ud2b8\ub97c \ucc98\ub9ac\ud558\uae30 \uc704\ud55c TT \uc2dc\uc2a4\ud15c\uc6a9 \uad6c\uc131(L-N \ubcf4\ud638 + N-PE \ubaa8\ub4c8).<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"5214\" data-end=\"5404\"><strong data-start=\"5214\" data-end=\"5272\">2. Uc(\ucd5c\ub300 \uc5f0\uc18d \uc791\ub3d9 \uc804\uc555) \uacb0\uc815<\/strong><br data-start=\"5272\" data-end=\"5275\" \/>Uc\ub294 \ubd88\ud544\uc694\ud55c \ud2b8\ub9ac\uac70\ub9c1\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uacf5\uce6d \uc2dc\uc2a4\ud15c \uc804\uc555\ubcf4\ub2e4 \uc57d\uac04 \ub192\uc544\uc57c \ud558\uc9c0\ub9cc \ud6a8\uacfc\uc801\uc778 \ubcf4\ud638\ub97c \uc704\ud574\uc11c\ub294 \ucda9\ubd84\ud788 \ub0ae\uc544\uc57c \ud569\ub2c8\ub2e4.<\/p>\r\n<p data-start=\"5406\" data-end=\"5449\"><strong data-start=\"5406\" data-end=\"5447\">3. \ubc29\uc804 \uc804\ub958 \uc6a9\ub7c9\uc744 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/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\">\uacf5\uce6d \ubc29\uc804 \uc804\ub958(In):<\/strong> 5~20kA.<\/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\">\ucd5c\ub300 \ubc29\uc804 \uc804\ub958(Imax):<\/strong> \uc704\ud5d8 \uc218\uc900\uc5d0 \ub530\ub77c 20~80kA.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"5572\" data-end=\"5721\"><strong data-start=\"5572\" data-end=\"5608\">4. \uc804\uc555 \ubcf4\ud638 \ub808\ubca8(Up)<\/strong><br data-start=\"5608\" data-end=\"5611\" \/>\ub0ae\uc744\uc218\ub85d \ub354 \ub098\uc740 \ubcf4\ud638\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc77c\ubc18 \uc7a5\ube44\uc758 \uacbd\uc6b0 2.5kV \uc774\ud558, \ubbfc\uac10\ud55c \uc804\uc790 \uc7a5\uce58\uc758 \uacbd\uc6b0 1.5kV \uc774\ud558\ub97c \ubaa9\ud45c\ub85c \ud569\ub2c8\ub2e4.<\/p>\r\n<p data-start=\"5723\" data-end=\"5862\"><strong data-start=\"5723\" data-end=\"5767\">5. \uc784\uc2dc \uacfc\uc804\uc555(TOV) \ub0b4\uc131<\/strong><br data-start=\"5767\" data-end=\"5770\" \/>SPD\uac00 \uc624\ub958 \ub610\ub294 \uc2a4\uc704\uce6d \uc774\ubca4\ud2b8\ub85c \uc778\ud55c \uc77c\uc2dc\uc801\uc778 \uacfc\uc804\uc555 \uc870\uac74\uc744 \uacac\ub51c \uc218 \uc788\ub294\uc9c0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/p>\r\n<p data-start=\"5864\" data-end=\"5892\"><strong data-start=\"5864\" data-end=\"5890\">6. \ucd94\uac00 \uae30\ub2a5<\/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\">\ube60\ub978 \uc720\uc9c0 \uad00\ub9ac\ub97c \uc704\ud55c \ud50c\ub7ec\uadf8\ud615 \ubaa8\ub4c8.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5936\" data-end=\"5975\">\r\n<p data-start=\"5938\" data-end=\"5975\">\ubaa8\ub2c8\ud130\ub9c1\uc744 \uc704\ud55c \uc6d0\uaca9 \uacbd\ubcf4 \uc811\uc810.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5976\" data-end=\"6019\">\r\n<p data-start=\"5978\" data-end=\"6019\">\uc5f4 \ucc28\ub2e8 \ubc0f \uc2dc\uac01\uc801 \ud45c\uc2dc\uae30.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"6026\" data-end=\"6076\">Type 2 \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58\ub97c \uc124\uce58\ud558\ub294 \ubc29\ubc95<\/h2>\r\n<a href=\"https:\/\/www.britecelectric.com\/ko\/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\">\ud604\uc7a5 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uacbd\ud5d8\uc744 \ud1b5\ud55c \uc124\uce58 \ubaa8\ubc94 \uc0ac\ub840:<\/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\">\uc704\uce58<\/strong> \u2014 \uc8fc \ubc30\uc804\ubc18 \ubc84\uc2a4\ubc14 \ub610\ub294 \ubcf4\ud638\ud558\ub824\ub294 \uc7a5\ube44\uc5d0 \ucd5c\ub300\ud55c \uac00\uae5d\uac8c \uc7a5\ucc29\ud558\uc2ed\uc2dc\uc624.<\/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\">\ubcd1\ub82c \uc5f0\uacb0<\/strong> \u2014 \uc720\ud615 2 SPD\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc804\uc6d0 \uacf5\uae09 \uc7a5\uce58\uc5d0 \ubcd1\ub82c\ub85c \uc5f0\uacb0\ub429\ub2c8\ub2e4.<\/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\">\ub9ac\ub4dc \uae38\uc774<\/strong> \u2014 \ubcf4\ud638 \uc804\uc555 \uc0c1\uc2b9\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uc0c1, \uc911\uc131\uc120 \ubc0f \uc811\uc9c0 \ub3c4\uccb4\uc758 \ucd1d \uae38\uc774\ub97c 0.5m \ubbf8\ub9cc\uc73c\ub85c \uc720\uc9c0\ud558\uc2ed\uc2dc\uc624.<\/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\">\ub3c4\uccb4 \ub2e8\uba74\uc801<\/strong> \u2014 \uc720\ud615 2\uc758 \uacbd\uc6b0 \ucd5c\uc18c 6 mm\u00b2 \uad6c\ub9ac; \uace0\uc6a9\ub7c9 \uc7a5\uce58\uc758 \uacbd\uc6b0 \ub354 \ud070 \ud06c\uae30.<\/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\">\uc811\uc9c0<\/strong> \u2014 \ucd5c\ub2e8 \uacbd\ub85c\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc8fc \ub4f1\uc804\uc704 \ubcf8\ub529 \ubc14\uc5d0 \uc9c1\uc811 \uc5f0\uacb0\ud569\ub2c8\ub2e4.<\/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\">\uacfc\uc804\ub958 \ubcf4\ud638<\/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\">\uacc4\ub2e8\uc2dd \uc2dc\uc2a4\ud15c\uc758 \uc870\uc815<\/strong> \u2014 \uc720\ud615 1 SPD\uc758 \ub2e4\uc6b4\uc2a4\ud2b8\ub9bc\uc5d0 \uc124\uce58\ub41c \uacbd\uc6b0 \ubd84\ub9ac \uac70\ub9ac(&gt;10m)\ub97c \uc720\uc9c0\ud558\uac70\ub098 \uc801\uc808\ud55c \uc5d0\ub108\uc9c0 \uacf5\uc720\ub97c \ubcf4\uc7a5\ud558\uae30 \uc704\ud574 \ub514\ucee4\ud50c\ub9c1 \uc778\ub355\ud130\ub97c \uc124\uce58\ud558\uc2ed\uc2dc\uc624.<\/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\">\uc2dc\uc2a4\ud15c\ubcc4 \ubc30\uc120<\/strong> \u2014 TT \uc2dc\uc2a4\ud15c\uc758 \uacbd\uc6b0 \uc911\uc131-\uc811\uc9c0 \uc11c\uc9c0\ub97c \ucc98\ub9ac\ud558\uae30 \uc704\ud55c N-PE \ubcf4\ud638 \ubaa8\ub4c8\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4.<\/p>\r\n<\/li>\r\n<\/ol>\r\n<p data-start=\"7147\" data-end=\"7255\">\uc774\ub7ec\ud55c \uc9c0\uce68\uc744 \ub530\ub974\uba74 SPD\uac00 \uc0ac\uc591\uc5d0 \ub9de\uac8c \uc131\ub2a5\uc744 \ubc1c\ud718\ud558\uace0 \uc804\uae30 \ud45c\uc900\uc744 \uc900\uc218\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\r\n\r\n<h2 data-start=\"7262\" data-end=\"7275\">\uacb0\ub860<\/h2>\r\n<p data-start=\"7277\" data-end=\"7508\">A <em><a href=\"https:\/\/www.britecelectric.com\/ko\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"7279\" data-end=\"7313\">\uc720\ud615 2 \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58<\/strong><\/a><\/em> \uacc4\uce35\ud654\ub41c \uc804\uae30 \ubcf4\ud638\uc758 \ud544\uc218 \uc694\uc18c\uc785\ub2c8\ub2e4. \ubc88\uac1c \ubc0f \ub0b4\ubd80 \uc2a4\uc704\uce6d \uc774\ubca4\ud2b8\ub85c \uc778\ud55c \uc794\ub958 \uc11c\uc9c0\ub85c\ubd80\ud130 \ubcf4\ud638\ud558\uc5ec \uc7a5\ube44 \uc218\uba85\uacfc \uc791\ub3d9 \uc548\uc815\uc131\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/p>\r\n<p data-start=\"7510\" data-end=\"7767\">\uc791\ub3d9 \uc6d0\ub9ac, \uc124\uce58 \uaddc\uce59 \ubc0f \uc120\ud0dd \ub9e4\uac1c\ubcc0\uc218\ub97c \uc774\ud574\ud568\uc73c\ub85c\uc368 \uc5d4\uc9c0\ub2c8\uc5b4\uc640 \uc870\ub2ec \uad00\ub9ac\uc790\ub294 \uc2dc\uc2a4\ud15c \uc694\uad6c \uc0ac\ud56d\uc744 \ucda9\uc871\ud558\uace0 IEC\/EN 61643-11\uc744 \uc900\uc218\ud558\uba70 \ud5a5\ud6c4 \uc218\ub144\uac04 \uc548\uc815\uc801\uc778 \ubcf4\ud638\ub97c \uc81c\uacf5\ud558\ub294 \uc7a5\uce58\ub97c \uc9c0\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\r\n<p data-start=\"7769\" data-end=\"7951\">\uc62c\ubc14\ub974\uac8c \uc124\uce58\ub41c Type 2 SPD\ub294 \ub2e8\uc21c\ud55c \uad6c\uc131 \uc694\uc18c\uac00 \uc544\ub2c8\ub77c \uc804\uae30 \uc2dc\uc2a4\ud15c\uc5d0 \ub300\ud55c \ubcf4\ud5d8 \uc815\ucc45\uc785\ub2c8\ub2e4. \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uae30 <strong><em><a class=\"\" href=\"https:\/\/www.britecelectric.com\/ko\/blog\/surge-protection-for-solar-photovoltaic-systems\/\" target=\"_blank\" rel=\"noopener\" data-start=\"1609\" data-end=\"1719\">\ud0dc\uc591\uad11 SPD \uc560\ud50c\ub9ac\ucf00\uc774\uc158<\/a><\/em><\/strong> \uc62c\ubc14\ub978 \uac83\uc744 \uc120\ud0dd\ud558\ub294 \ubc29\ubc95.<\/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\/ko\/wp-json\/wp\/v2\/blog\/2154","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/ko\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/ko\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/ko\/wp-json\/wp\/v2\/media\/2160"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/ko\/wp-json\/wp\/v2\/media?parent=2154"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/ko\/wp-json\/wp\/v2\/blog_category?post=2154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}