{"id":4376,"date":"2026-09-01T10:44:59","date_gmt":"2026-09-01T02:44:59","guid":{"rendered":"https:\/\/cnkuangya.com\/?p=4376"},"modified":"2026-09-01T10:45:03","modified_gmt":"2026-09-01T02:45:03","slug":"dc-spd-class-i-class-ii-and-class-iii-explained-a-practical-guide-to-pv-surge-protection","status":"publish","type":"post","link":"https:\/\/cnkuangya.com\/ko\/blog\/dc-spd-class-i-class-ii-and-class-iii-explained-a-practical-guide-to-pv-surge-protection\/","title":{"rendered":"DC SPD Class I, Class II \ubc0f Class III \uc124\uba85: \ud0dc\uc591\uad11(PV) \uc11c\uc9c0 \ubcf4\ud638\ub97c \uc704\ud55c \uc2e4\ubb34 \uac00\uc774\ub4dc"},"content":{"rendered":"<h2>Class I, Class II \ubc0f Class III \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58(SPD)\uc5d0 \ub300\ud55c \uc2e4\ubb34 \uac00\uc774\ub4dc<\/h2>\n<p><a href=\"https:\/\/cnkuangya.com\/ko\/dc-spd\/\">DC \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58(SPD)<\/a> \ud0dc\uc591\uad11 \ubc1c\uc804 \uc2dc\uc2a4\ud15c\uc758 DC \uce21\uc5d0 \uc0ac\uc6a9\ub418\uc5b4 \uc778\ubc84\ud130, \ubaa8\ub2c8\ud130\ub9c1 \uc7a5\ube44, \uc811\uc18d\ubc18 \ubc0f \uae30\ud0c0 \ubbfc\uac10\ud55c \ubd80\ud488\uc774 \uc190\uc0c1\ub418\uae30 \uc804\uc5d0 \uacfc\ub3c4 \uacfc\uc804\uc555\uc744 \uc81c\ud55c\ud558\uace0 \uc11c\uc9c0 \uc804\ub958\ub97c \uc6b0\ud68c\uc2dc\ud0b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub2e4\uc74c\uacfc \uac19\uc740 \ud45c\uc2dc\ub294 <strong>\ud074\ub798\uc2a4 I<\/strong>, <strong>\ud074\ub798\uc2a4 II<\/strong>, <strong>In<\/strong>, <strong>Imax<\/strong>, <strong>Up<\/strong> \ubc0f <strong>Iscpv<\/strong> \uc885\uc885 \uc624\ud574\ub97c \ubc1b\uae30\ub3c4 \ud569\ub2c8\ub2e4.<\/p>\n<p>\uc774 \uac00\uc774\ub4dc\ub294 DC SPD \ub4f1\uae09(Class I, Class II, Class III)\uc744 \uc124\uba85\ud558\uace0 \uc77c\ubc18\uc801\uc778 1000V DC \ud0dc\uc591\uad11 SPD \uba85\ud310\uc744 \ud574\uc11d\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/p>\n<hr \/>\n<h2>\uc8fc\uc694 \ub0b4\uc6a9<\/h2>\n<ul>\n<li>Class I, Class II \ubc0f Class III\ub294 \uc81c\ud488\uc758 \ud488\uc9c8 \ub4f1\uae09\uc774 \uc544\ub2cc SPD \uc2dc\ud5d8 \ub4f1\uae09\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/li>\n<li>Class I\uc740 \uc77c\ubc18\uc801\uc73c\ub85c Type 1 SPD \ubc0f 10\/350 \u03bcs \ub099\ub8b0 \uc804\ub958 \ud30c\ud615\uacfc \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li>Class II\ub294 \uc77c\ubc18\uc801\uc73c\ub85c Type 2 SPD \ubc0f 8\/20 \u03bcs \uc11c\uc9c0 \uc804\ub958 \ud30c\ud615\uacfc \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li>Class III\uc740 \uc77c\ubc18\uc801\uc73c\ub85c Type 3 \uc815\ubc00 \ubcf4\ud638 \ubc0f \uc870\ud569 \ud30c\ud615 \ud14c\uc2a4\ud2b8\uc640 \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li>Ucpv, In, Imax, Up \ubc0f Iscpv\ub294 \uc11c\ub85c \ub2e4\ub978 \uc804\uae30\uc801 \ud2b9\uc131\uc744 \uc124\uba85\ud558\uba70 \uc0c1\ud638 \uad50\ud658\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/li>\n<li>Class II SPD\ub97c \uc9c1\uaca9\ub8b0 \uc804\ub958\uc5d0 \ub300\ud55c \ubcf4\ud638 \uc7a5\uce58\ub85c \uc790\ub3d9 \uac04\uc8fc\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/li>\n<\/ul>\n<figure><img decoding=\"async\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/08\/spd-class-comparison-line-drawing.png\" alt=\"Line drawing comparing Class I, Class II and Class III DC SPD test waveforms and protection stages\" \/><figcaption>Class I, Class II \ubc0f Class III SPD\ub294 \uc11c\ub85c \ub2e4\ub978 \uc11c\uc9c0 \ud658\uacbd\uacfc \uc124\uce58 \ub2e8\uacc4\uc5d0 \ub300\ud574 \ud14c\uc2a4\ud2b8\ub429\ub2c8\ub2e4.<\/figcaption><\/figure>\n<hr \/>\n<h2>SPD \ub4f1\uae09(Class)\uc740 \ubb34\uc5c7\uc744 \uc758\ubbf8\ud569\ub2c8\uae4c?<\/h2>\n<p>\ub2e8\uc5b4 <strong>\ub4f1\uae09(Class)<\/strong> SPD\uc758 \ub4f1\uae09\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ud14c\uc2a4\ud2b8 \ubd84\ub958\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc774\ub294 Class I\uc774 \ud504\ub9ac\ubbf8\uc5c4 \ud488\uc9c8 \uc81c\ud488\uc774\uace0 Class II\uac00 \uc800\ud488\uc9c8 \uc81c\ud488\uc784\uc744 \uc758\ubbf8\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ub610\ud55c \uc808\uc5f0 \ub4f1\uae09\uc774\ub098 IP \uc678\ud568 \ub4f1\uae09\uc744 \uc124\uba85\ud558\ub294 \uac83\ub3c4 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>\uc2dc\ud5d8 \ub4f1\uae09<\/th>\n<th>\uc77c\ubc18 \uc81c\ud488 \uba85\uce6d<\/th>\n<th>\uc8fc \uc2dc\ud5d8 \ud30c\ud615<\/th>\n<th>\uc77c\ubc18\uc801\uc778 \uc5ed\ud560<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\ud074\ub798\uc2a4 I<\/td>\n<td>\uc720\ud615 1<\/td>\n<td>10\/350 \u03bcs \uc804\ub958 \uc784\ud384\uc2a4<\/td>\n<td>\ubd80\ubd84 \ub099\ub8b0 \uc804\ub958 \ubc29\uc804<\/td>\n<\/tr>\n<tr>\n<td>\ud074\ub798\uc2a4 II<\/td>\n<td>\uc720\ud615 2<\/td>\n<td>8\/20 \u03bcs \uc804\ub958 \uc784\ud384\uc2a4<\/td>\n<td>\uc720\ub3c4 \ub099\ub8b0 \ubc0f \uac1c\ud3d0 \uc11c\uc9c0<\/td>\n<\/tr>\n<tr>\n<td>\ud074\ub798\uc2a4 III<\/td>\n<td>\uc720\ud615 3<\/td>\n<td>\ubcf5\ud569 \ud30c\ud615<\/td>\n<td>\ubbfc\uac10\ud55c \uc7a5\ube44 \uadfc\ucc98\uc758 \uc815\ubc00 \ubcf4\ud638<\/td>\n<\/tr>\n<tr>\n<td>Class I+II<\/td>\n<td>\uc720\ud615 1+2<\/td>\n<td>10\/350 \u03bcs \ubc0f 8\/20 \u03bcs<\/td>\n<td>\ub099\ub8b0 \uc804\ub958 \ubc0f \uc11c\uc9c0 \ud1b5\ud569 \ubcf4\ud638<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uc774\ub7ec\ud55c SPD \ub4f1\uae09\uc744 \ud53c\ub8b0 \uc2dc\uc2a4\ud15c \ub4f1\uae09\uc778 LPS I, II, III \ubc0f IV\uc640 \ud63c\ub3d9\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. \ub450 \uc2dc\uc2a4\ud15c\uc740 \uc720\uc0ac\ud55c \ub85c\ub9c8 \uc22b\uc790\ub97c \uc0ac\uc6a9\ud558\uc9c0\ub9cc \uc11c\ub85c \ub2e4\ub978 \ub300\uc0c1\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n<h2>Class I \/ Type 1 DC SPD<\/h2>\n<p>Class I \ub610\ub294 Type 1 SPD\ub294 \uace0\uc5d0\ub108\uc9c0 \ub099\ub8b0 \uc804\ub958 \uc131\ubd84\uc744 \ucc98\ub9ac\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc8fc\uc694 \ud14c\uc2a4\ud2b8 \ud30c\ud615\uc740 \uc77c\ubc18\uc801\uc73c\ub85c 10\/350 \u03bcs\uc785\ub2c8\ub2e4. \uc804\ub958\uac00 \uae09\uaca9\ud788 \uc0c1\uc2b9\ud55c \ud6c4 \ube44\uad50\uc801 \uae34 \uc2dc\uac04\uc5d0 \uac78\uccd0 \uac10\uc1e0\ud558\ubbc0\ub85c, \ub3d9\uc77c\ud55c \ud53c\ud06c \uc804\ub958\ub97c \uac00\uc9c4 \uc77c\ubc18\uc801\uc778 8\/20 \u03bcs \uc11c\uc9c0\ubcf4\ub2e4 \ud6e8\uc52c \ub354 \ub192\uc740 \uc5d0\ub108\uc9c0\ub97c \uc784\ud384\uc2a4\uc5d0 \uc804\ub2ec\ud569\ub2c8\ub2e4.<\/p>\n<p>PV \uc124\ube44\uc5d0 \uc678\ubd80 \ud53c\ub8b0 \uc2dc\uc2a4\ud15c\uc774 \uc788\uac70\ub098, \ud544\uc694\ud55c \uc774\uaca9 \uac70\ub9ac\ub97c \uc720\uc9c0\ud560 \uc218 \uc5c6\uac70\ub098, \ub099\ub8b0 \uc804\ub958\uac00 \ud53c\ub8b0 \uad6c\uc5ed \uacbd\uacc4\ub97c \ub118\uc5b4 \uc804\uae30 \uc124\ube44\ub85c \uc720\uc785\ub420 \uc218 \uc788\ub294 \uacbd\uc6b0\uc5d0\ub294 Type 1 \ub610\ub294 Type 1+2 \ubcf4\ud638 \uc7a5\uce58\ub97c \ud3c9\uac00\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p>\uc8fc\uc694 Type 1 \ub9e4\uac1c\ubcc0\uc218\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. <strong>Iimp<\/strong>. \ub2e8\uc21c\ud788 \ud070 Imax \uac12\ub9cc\uc73c\ub85c\ub294 \ud574\ub2f9 SPD\uac00 Type 1 \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud558\ub2e4\uace0 \ub2e8\uc815\ud560 \uc218 \uc5c6\ub294\ub370, \uc774\ub294 Imax\uac00 \uc77c\ubc18\uc801\uc73c\ub85c 8\/20 \u03bcs \ud30c\ud615\uacfc \uad00\ub828\ub418\uc5b4 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n<h2>Class II \/ Type 2 DC SPD<\/h2>\n<p>Class II\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 8\/20 \u03bcs \uc804\ub958 \ud30c\ud615\uc73c\ub85c \ud14c\uc2a4\ud2b8\ub41c Type 2 SPD\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4. \uc774\ub294 \uc720\ub3c4 \ub099\ub8b0 \uc11c\uc9c0 \ubc0f \uc2a4\uc704\uce6d \uacfc\ub3c4 \uc804\uc555\uc73c\ub85c\ubd80\ud130 \ubcf4\ud638\ud558\uae30 \uc704\ud574 \uac00\uc7a5 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\ub294 \ub4f1\uae09\uc785\ub2c8\ub2e4. <a href=\"https:\/\/cnkuangya.com\/ko\/product\/type-2-pv-surge-protective-device\/\">PV \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4<\/a>, DC \ubc30\uc804 \uc7a5\ube44 \ubc0f \uc778\ubc84\ud130 DC \uc785\ub825\ubd80.<\/p>\n<p>Type 2 SPD\ub294 \uc870\uc815\ub41c \ubcf4\ud638 \uc2dc\uc2a4\ud15c\uc758 \uc77c\ubd80\ub85c\uc11c Type 1 SPD\uc758 \ud558\ub2e8\uc5d0 \uc124\uce58\ub420 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \uc81c\ud488\uc774 Type 1 \ub610\ub294 Type 1+2\ub85c \ud14c\uc2a4\ud2b8 \ubc0f \uc120\uc5b8\ub418\uc9c0 \uc54a\uc740 \uacbd\uc6b0, \uc9c1\uaca9\ub8b0 \uc804\ub958 \ud53c\ub8b0\uae30\ub85c \ub9c8\ucf00\ud305\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/p>\n<h2>Class III \/ Type 3 SPD<\/h2>\n<p>Class III \ub610\ub294 Type 3 SPD\ub294 \ubbfc\uac10\ud55c \uc7a5\ube44 \uadfc\ucc98\uc5d0\uc11c \uc815\ubc00\ud55c \ubcf4\ud638 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub4e4\uc740 \uc77c\ubc18\uc801\uc73c\ub85c 1.2\/50 \u03bcs \uac1c\ubc29 \ud68c\ub85c \uc804\uc555 \ud30c\ud615\uacfc 8\/20 \u03bcs \ub2e8\ub77d \uc804\ub958 \ud30c\ud615\uc744 \uc0ac\uc6a9\ud558\ub294 \ubcf5\ud569 \ud30c\ud615 \ubc1c\uc0dd\uae30\ub97c \uc0ac\uc6a9\ud558\uc5ec \ud3c9\uac00\ub429\ub2c8\ub2e4.<\/p>\n<p>Type 3 \uc7a5\uce58\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc0c1\ub2e8\uc5d0 \uc124\uce58\ub41c Type 1 \ub610\ub294 Type 2 \ubcf4\ud638 \uc7a5\uce58\uc640 \ud568\uaed8 \uc791\ub3d9\ud569\ub2c8\ub2e4. \uc774 \uc7a5\uce58\ub4e4\uc740 \uc720\uc785\ub418\ub294 \uc11c\uc9c0 \uc5d0\ub108\uc9c0\ub97c \ub2e8\ub3c5\uc73c\ub85c \uc644\uc804\ud788 \ud761\uc218\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc9c0 \uc54a\uc558\uc2b5\ub2c8\ub2e4.<\/p>\n<hr \/>\n<h2>1000 V DC SPD \uba85\ud310 \uc77d\ub294 \ubc95<\/h2>\n<figure><img decoding=\"async\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/08\/dc-spd-nameplate-parameters-line-drawing.png\" alt=\"Line drawing explaining Ucpv, Class II, In, Imax, Up and Iscpv on a 1000 V DC SPD nameplate\" \/><figcaption>\uac01 DC SPD \uba85\ud310\uc758 \uac12\uc740 \uc120\ud0dd \ub610\ub294 \uc548\uc804\uacfc \uad00\ub828\ub41c \uc11c\ub85c \ub2e4\ub978 \uc9c8\ubb38\uc5d0 \ub300\ud55c \ub2f5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/figcaption><\/figure>\n<h3>Ucpv: 1000 V DC<\/h3>\n<p><strong>Ucpv<\/strong> \ud0dc\uc591\uad11(PV) SPD\uc758 \ucd5c\ub300 \uc5f0\uc18d \ub3d9\uc791 \uc804\uc555\uc785\ub2c8\ub2e4. \uc774\ub294 \uc81c\uc870\uc0ac\uac00 \uba85\uc2dc\ud55c \uc870\uac74 \ud558\uc5d0\uc11c SPD\uc5d0 \uc9c0\uc18d\uc801\uc73c\ub85c \uc778\uac00\ub420 \uc218 \uc788\ub294 \uac00\uc7a5 \ub192\uc740 DC \uc804\uc555\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n<p>\uc120\ud0dd\ub41c Ucpv\ub294 \uc608\uc0c1\ub418\ub294 \ucd5c\uc800 \uc628\ub3c4\uc5d0 \ub300\ud574 \ubcf4\uc815\ud55c \ud6c4\uc758 \ucd5c\ub300 PV \uc5b4\ub808\uc774 \uac1c\ubc29 \ud68c\ub85c \uc804\uc555\ubcf4\ub2e4 \ub0ae\uc544\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. \ubaa8\ub4c8\uc758 Voc\ub294 \uc628\ub3c4\uac00 \ub0ae\uc544\uc9c8\uc218\ub85d \uc0c1\uc2b9\ud558\ubbc0\ub85c, \u201c1000 V DC\u201d \uc2dc\uc2a4\ud15c\uc774\ub77c\uace0 \ud574\uc11c \ud55c\ub7ad \uae30\ud6c4\uc5d0\uc11c\uc758 \ucd5c\ub300 \uc804\uc555\uc744 \ud655\uc778\ud558\uc9c0 \uc54a\uace0 1000 V Ucpv SPD\ub97c \ubc14\ub85c \uc0ac\uc6a9\ud560 \uc218\ub294 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>\ud074\ub798\uc2a4 II<\/h3>\n<p>\uc774 \ud45c\uc2dc\ub294 Class II \ud14c\uc2a4\ud2b8 \ubc0f \uc77c\ubc18\uc801\uc73c\ub85c Type 2 \uc801\uc6a9\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc774\ub294 \uc8fc\ub85c 8\/20 \u03bcs \ud30c\ud615\uc73c\ub85c \ud45c\ud604\ub418\ub294 \uc720\ub3c4 \uc11c\uc9c0 \ubc0f \uac1c\ud3d0 \uc11c\uc9c0\ub97c \ub2e4\ub8f9\ub2c8\ub2e4. \uc774\ub294 \uc81c\ud488\uc758 \ud488\uc9c8\uc774\ub098 \ub2e8\ub77d \uc6a9\ub7c9\uc744 \uc124\uba85\ud558\ub294 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n<h3>In: 20 kA<\/h3>\n<p><strong>In<\/strong> \ub294 \uacf5\uce6d \ubc29\uc804 \uc804\ub958\uc774\uba70, \uc77c\ubc18\uc801\uc73c\ub85c Type 2 SPD\uc758 \uacbd\uc6b0 8\/20 \u03bcs \ud30c\ud615\uc73c\ub85c \uaddc\uc815\ub429\ub2c8\ub2e4. \uc774\ub294 \ud45c\uc900 \uc2dc\ud5d8 \uc21c\uc11c\uc5d0 \uc0ac\uc6a9\ub418\uba70, \uba85\uc2dc\ub41c \uc2dc\ud5d8 \uc870\uac74 \ud558\uc5d0\uc11c \ubc18\ubcf5 \uac00\ub2a5\ud55c \uc11c\uc9c0 \uc804\ub958 \uc131\ub2a5\uc744 \ub098\ud0c0\ub0b4\ub294 \uc911\uc694\ud55c \uc9c0\ud45c\uc785\ub2c8\ub2e4.<\/p>\n<h3>Imax: 40 kA<\/h3>\n<p><strong>Imax<\/strong> \ucd5c\ub300 \ubc29\uc804 \uc804\ub958\uc774\uba70, \uc77c\ubc18\uc801\uc73c\ub85c 8\/20 \u03bcs \ud30c\ud615\uacfc \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \ub354 \ub192\uc740 \uc81c\ud55c \ubc29\uc804 \uac12\uc774\uba70, SPD\uac00 \ubc18\ubcf5\uc801\uc73c\ub85c \uacac\ub51c \uc218 \uc788\ub294 \uc804\ub958\ub85c \ud574\uc11d\ub418\uc5b4\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/p>\n<p>In\uacfc Imax\ub294 \uad00\ub828 \ud30c\ud615\uc744 \uace0\ub824\ud558\uc9c0 \uc54a\ub294 \ud55c Iimp\uc640 \uc9c1\uc811 \ube44\uad50\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. 10\/350 \u03bcs \ub099\ub8b0 \uc804\ub958 \uc784\ud384\uc2a4\ub294 \ub3d9\uc77c\ud55c \ud53c\ud06c \uac12\uc744 \uac00\uc9c4 8\/20 \u03bcs \uc784\ud384\uc2a4\ubcf4\ub2e4 \ud6e8\uc52c \ub354 \ub9ce\uc740 \uc5d0\ub108\uc9c0\ub97c \ud3ec\ud568\ud569\ub2c8\ub2e4.<\/p>\n<h3>Up: 4.0 kV<\/h3>\n<p><strong>Up<\/strong> \uc804\uc555 \ubcf4\ud638 \ub808\ubca8\uc785\ub2c8\ub2e4. \uc774\ub294 \uc9c0\uc815\ub41c \ud14c\uc2a4\ud2b8 \uc870\uac74 \ud558\uc5d0\uc11c SPD\uac00 \uc804\uc555\uc744 \uc81c\ud55c\ud558\ub294 \uc218\uc900\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. Up\uc740 \ubcf4\ud638 \ub300\uc0c1 \uc7a5\ube44\uc758 \uc784\ud384\uc2a4 \ub0b4\uc804\uc555\uacfc \uc870\uc815\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p>\ub354 \ub0ae\uc740 Up\uc740 \ubcf4\ud638 \ub9c8\uc9c4\uc744 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc9c0\ub9cc, Up\ub9cc\uc73c\ub85c \ud3c9\uac00\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. Ucpv\ub294 PV \uc2dc\uc2a4\ud15c\uc5d0 \ucda9\ubd84\ud788 \ub192\uac8c \uc720\uc9c0\ub418\uc5b4\uc57c \ud558\uba70, \uc11c\uc9c0 \ubc1c\uc0dd \uc2dc \ub3c4\uccb4 \uc778\ub355\ud134\uc2a4\uac00 \uc804\uc555\uc744 \ucd94\uac00\ud558\ubbc0\ub85c \uc124\uce58 \ub3c4\uccb4 \uae38\uc774\ub97c \ucd5c\uc18c\ud654\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h3>Iscpv: 10 kA<\/h3>\n<p><strong>Iscpv<\/strong> is the PV short-circuit current rating of the SPD. It is not a surge-discharge rating. It describes the prospective PV short-circuit current for which the SPD and its disconnection arrangement are suitable under the manufacturer&#8217;s declared conditions.<\/p>\n<p>\uc774 \uac12\uc740 DC \ud0dc\uc591\uad11 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ud2b9\ud788 \uc911\uc694\ud55c\ub370, \uc774\ub294 \uace0\uc7a5 \ub09c SPD\uac00 \uc704\ud5d8\ud55c DC \uc544\ud06c\ub97c \uc9c0\uc18d\ud558\uc9c0 \uc54a\uace0 \uc548\uc804\ud558\uac8c \ucc28\ub2e8\ub418\uc5b4\uc57c \ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n<h3>5%\u201395% \uc0c1\ub300 \uc2b5\ub3c4<\/h3>\n<p>\uc774\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud5c8\uc6a9\ub418\ub294 \uc0c1\ub300 \uc2b5\ub3c4 \ubc94\uc704\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \ube44\uc751\ucd95 \uc791\ub3d9, \ubd80\uc2dd, \uacb0\ube59 \ubc0f \uace0\ub3c4\uc640 \uac19\uc740 \uc870\uac74\uc5d0 \ub300\ud574\uc11c\ub294 \uc804\uccb4 \ub370\uc774\ud130 \uc2dc\ud2b8\ub97c \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h3>\u221240\u00b0C ~ +85\u00b0C<\/h3>\n<p>\uc774\ub294 \uba85\uc2dc\ub41c \uc628\ub3c4 \ubc94\uc704\uc785\ub2c8\ub2e4. \uc625\uc678 \uacb0\ud569\uae30 \ud568(combiner box)\uc774\ub098 \uc678\ud568 \ub0b4\ubd80\uc5d0 \uc124\uce58\ub41c \uc7a5\ube44\uc758 \uacbd\uc6b0, \ub0b4\ubd80 \uce90\ube44\ub2db \uc628\ub3c4\uac00 \uc8fc\ubcc0 \uae30\uc628\ubcf4\ub2e4 \uc0c1\ub2f9\ud788 \ub192\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>\uc2e4\ub0b4\uc6a9 \ubc0f IP20<\/h3>\n<p>IP20\uc740 \uc190\uac00\ub77d \uc811\uadfc \ubc0f \ud2b9\uc815 \uace0\uccb4 \ubb3c\uccb4\uc5d0 \ub300\ud55c \uae30\ubcf8\uc801\uc778 \ubcf4\ud638\ub97c \uc81c\uacf5\ud558\uc9c0\ub9cc, \ub450 \ubc88\uc9f8 \uc22b\uc790\uc778 \u201c0\u201d\uc740 \ubc29\uc218 \ubcf4\ud638 \uae30\ub2a5\uc774 \uba85\uc2dc\ub418\uc9c0 \uc54a\uc558\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. IP20 SPD\ub294 \ube44\uc5d0 \uc9c1\uc811 \ub178\ucd9c\ub418\uc5b4\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. \uc625\uc678 \ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\ub294 \ud658\uacbd \uc870\uac74\uc5d0 \uc801\ud569\ud55c \uc678\ud568\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n<hr \/>\n<h2>\ud0dc\uc591\uad11 \uc2dc\uc2a4\ud15c\uc5d0\uc11c DC SPD\ub294 \uc5b4\ub514\uc5d0 \uc124\uce58\ub429\ub2c8\uae4c?<\/h2>\n<figure><img decoding=\"async\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2026\/08\/pv-dc-spd-installation-line-drawing.png\" alt=\"Line drawing showing DC SPD locations at a PV combiner box and inverter input\" \/><figcaption>\uae34 DC \ucf00\uc774\ube14 \uacbd\ub85c\uc758 \uacbd\uc6b0 \uc5b4\ub808\uc774 \ubc0f \uc778\ubc84\ud130 \uc591\ub2e8\uc5d0 \uc870\uc815\ub41c SPD\uac00 \ud544\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/figcaption><\/figure>\n<p>DC SPD\ub294 \uc77c\ubc18\uc801\uc73c\ub85c PV \uacb0\ud569\ud568(combiner box) \ub0b4\ubd80\uc640 \uc778\ubc84\ud130 DC \uc785\ub825\ub2e8 \uadfc\ucc98\uc5d0 \uc124\uce58\ub429\ub2c8\ub2e4. \uc801\uc808\ud55c \uc218\ub7c9\uacfc \uc704\uce58\ub294 \uc2dc\uc2a4\ud15c \ub808\uc774\uc544\uc6c3, \ucf00\uc774\ube14 \ubc30\uc120, \ud53c\ub8b0 \uc124\uacc4 \uac1c\ub150, \uc811\uc9c0 \ubc29\uc2dd \ubc0f \uc7a5\ube44 \ub0b4\uc804\uc555 \uc218\uc900\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n<p>DC \ucf00\uc774\ube14\uc774 \uae34 \uacbd\uc6b0 \uc591\ub2e8\uc5d0 \uc870\uc815\ub41c SPD\uac00 \ud544\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucd5c\uc885 \ubc30\uce58 \ubc0f \uc870\uc815\uc740 \ub2e8\uc77c \uc7a5\uce58\uc5d0 \ub300\ud55c \ubcf4\ud3b8\uc801\uc778 \uaddc\uce59\uc774 \uc544\ub2cc, \uc801\uc6a9 \uac00\ub2a5\ud55c \uc124\uce58 \uc124\uacc4 \ubc0f IEC 61643-32 \ud45c\uc900\uc744 \ub530\ub77c\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<hr \/>\n<h2>Type 1, Type 2 \ub610\ub294 Type 1+2 \uc911 \ubb34\uc5c7\uc744 \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\uae4c?<\/h2>\n<h3>\ub2e4\uc74c\uc758 \uacbd\uc6b0 Type 1 \ub610\ub294 Type 1+2\ub97c \uace0\ub824\ud558\uc2ed\uc2dc\uc624:<\/h3>\n<ul>\n<li>\uac74\ubb3c\uc5d0 \uc678\ubd80 \ud53c\ub8b0 \uc2dc\uc2a4\ud15c\uc774 \uc124\uce58\ub41c \uacbd\uc6b0.<\/li>\n<li>\ud544\uc694\ud55c \uc774\uaca9 \uac70\ub9ac\ub97c \uc720\uc9c0\ud560 \uc218 \uc5c6\ub294 \uacbd\uc6b0.<\/li>\n<li>\ub099\ub8b0 \uc804\ub958\uac00 PV \ubc30\uc120\uc73c\ub85c \uc720\uc785\ub418\uac70\ub098 LPZ \uacbd\uacc4\ub97c \ub118\uc744 \uac00\ub2a5\uc131\uc774 \uc788\ub294 \uacbd\uc6b0.<\/li>\n<li>\ud504\ub85c\uc81d\ud2b8 \uc704\ud5d8 \ud3c9\uac00\uc5d0\ub294 \ub099\ub8b0 \uc804\ub958 \ubc29\uc804 \uc6a9\ub7c9\uc774 \uc694\uad6c\ub429\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h3>\ub2e4\uc74c\uc758 \uacbd\uc6b0 Type 2\ub97c \uace0\ub824\ud558\uc2ed\uc2dc\uc624:<\/h3>\n<ul>\n<li>\uc8fc\uc694 \uc704\ud5d8\uc774 \uc720\ub3c4\ub8b0 \ub610\ub294 \uac1c\ud3d0 \uc11c\uc9c0 \uc804\uc555\uc778 \uacbd\uc6b0.<\/li>\n<li>SPD\uac00 \uc0c1\uc704 Type 1 \uc7a5\uce58\uc758 \ud558\ub2e8\uc5d0 \uc124\uce58\ub418\ub294 \uacbd\uc6b0.<\/li>\n<li>PV \uc811\uc18d\ubc18 \ub610\ub294 \uc778\ubc84\ud130 \uc785\ub825\ub2e8\uc5d0 \uc9c1\uc811\uc801\uc778 \ub099\ub8b0 \uc804\ub958 \ubd80\ud558\uac00 \uc5c6\ub294 \uad6d\ubd80\uc801 \uc11c\uc9c0 \ubcf4\ud638\uac00 \ud544\uc694\ud55c \uacbd\uc6b0.<\/li>\n<\/ul>\n<p>\ucd5c\uc885 \uc120\uc815 \uc2dc\uc5d0\ub294 \ub77c\ubca8\uc5d0 \ud45c\uae30\ub41c \uac00\uc7a5 \ud070 kA \uc218\uce58\ubfd0\ub9cc \uc544\ub2c8\ub77c Ucpv, \ud574\ub2f9\ub418\ub294 \uacbd\uc6b0 Iimp, In, Imax, Up, Iscpv, \ubcf4\ud638 \ubaa8\ub4dc, \uc811\uc9c0 \uc2dc\uc2a4\ud15c, \ubc31\uc5c5 \ubcf4\ud638 \ubc0f \uc778\uc99d\uc744 \ud56d\uc0c1 \uace0\ub824\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<hr \/>\n<h2>DC SPD \uc120\uc815 \uc2dc \ud754\ud788 \ubc1c\uc0dd\ud558\ub294 \uc2e4\uc218<\/h2>\n<ol>\n<li><strong>Class II\ub97c \ud488\uc9c8 \ub4f1\uae09\uc73c\ub85c \uc624\uc778\ud558\ub294 \uacbd\uc6b0.<\/strong> \uc774\ub294 \ud14c\uc2a4\ud2b8 \ub4f1\uae09\uc77c \ubfd0\uc774\uba70, \uc81c\ud488\uc774 2\ub4f1\uae09(second grade)\uc774\ub77c\ub294 \uc758\ubbf8\uac00 \uc544\ub2d9\ub2c8\ub2e4.<\/li>\n<li><strong>\ud30c\ud615\uc744 \uace0\ub824\ud558\uc9c0 \uc54a\uace0 \uc815\uaca9 \uc804\ub958\ub97c \ube44\uad50\ud558\ub294 \uac83.<\/strong> 8\/20 \u03bcs\uc5d0\uc11c\uc758 40 kA\ub294 10\/350 \u03bcs\uc5d0\uc11c\uc758 40 kA\uc640 \ub3d9\uc77c\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>Iscpv\uc640 \uc11c\uc9c0 \uc804\ub958\ub97c \ud63c\ub3d9\ud558\ub294 \uac83.<\/strong> Iscpv\ub294 \ud0dc\uc591\uad11(PV) \ub2e8\ub77d \uc870\uac74\uacfc \uad00\ub828\uc774 \uc788\uc73c\uba70, In\uacfc Imax\ub294 \uc11c\uc9c0 \ubc29\uc804\uacfc \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>\uacf5\uce6d \uc2dc\uc2a4\ud15c \uc804\uc555\ub9cc\uc73c\ub85c Ucpv\ub97c \uc120\uc815\ud558\ub294 \uac83.<\/strong> \uc800\uc628\uc5d0\uc11c\uc758 Voc(\uac1c\ubc29 \uc804\uc555)\ub97c \ubc18\ub4dc\uc2dc \uacc4\uc0b0\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ub3c4\uccb4 \uae38\uc774\ub97c \ubb34\uc2dc\ud558\ub294 \uac83.<\/strong> SPD \uc5f0\uacb0 \uae38\uc774\uac00 \uae38\uc5b4\uc9c0\uba74 \ubcf4\ud638 \ub300\uc0c1 \uc7a5\ube44\uc5d0 \uac00\ud574\uc9c0\ub294 \uc720\ud6a8 \uc804\uc555\uc774 \uc99d\uac00\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>IP20 \ub4f1\uae09 \uc7a5\ube44\ub97c \uc678\ud568 \uc5c6\uc774 \uc625\uc678\uc5d0 \uc124\uce58\ud558\ub294 \ud589\uc704.<\/strong> IP20 \ub4f1\uae09\uc740 \ubc29\uc218 \uae30\ub2a5\uc744 \uc81c\uacf5\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>Type 1 \uc131\ub2a5\uc774 \uc694\uad6c\ub418\ub294 \uacf3\uc5d0 Type 2\ub97c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0.<\/strong> \uc9c1\uaca9\ub8b0 \uc704\ud5d8\uc774 \uc788\ub294 \uacbd\uc6b0 \uc62c\ubc14\ub978 \uc2dc\ud5d8 \ub4f1\uae09\uacfc \uc2dc\uc2a4\ud15c \uc124\uacc4\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n<hr \/>\n<h2>\uacb0\ub860<\/h2>\n<p>\uc62c\ubc14\ub978 DC SPD \uc120\uc815\uc740 \uc885\ud569\uc801\uc778 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uacb0\uc815\uc785\ub2c8\ub2e4. SPD\ub294 \uc801\uc808\ud55c \uc5f0\uc18d \ub3d9\uc791 \uc804\uc555, \uc62c\ubc14\ub978 \uc2dc\ud5d8 \ub4f1\uae09, \ucda9\ubd84\ud55c \ubc29\uc804 \uc6a9\ub7c9, \uc801\uc808\ud55c \uc804\uc555 \ubcf4\ud638 \uc218\uc900 \ubc0f \ucda9\ubd84\ud55c PV \ub2e8\ub77d \uc548\uc804\uc131\uc744 \uac16\ucd94\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p>\uc608\uc2dc \uba85\ud310\uc5d0\uc11c Class II\ub294 Type 2 \uc801\uc6a9\uc744 \uc758\ubbf8\ud558\uba70, In 20 kA\uc640 Imax 40 kA\ub294 8\/20 \u03bcs \uc11c\uc9c0 \uc804\ub958 \uc131\ub2a5\uc744 \ub098\ud0c0\ub0b4\uace0, Up 4.0 kV\ub294 \uc804\uc555 \ubcf4\ud638 \uc218\uc900\uc774\uba70, Iscpv 10 kA\ub294 PV \ub2e8\ub77d \uc804\ub958 \uc815\uaca9\uc785\ub2c8\ub2e4. \uc774 \uac12\ub4e4\uc740 \uc11c\ub85c \ub300\uccb4\ub420 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n<p>PV \uc2dc\uc2a4\ud15c\uc744 \uc704\ud55c DC SPD \uc120\uc815\uc5d0 \ub3c4\uc6c0\uc774 \ud544\uc694\ud558\uc2ed\ub2c8\uae4c? \ubb38\uc758\ud574 \uc8fc\uc2ed\uc2dc\uc624. <a href=\"https:\/\/cnkuangya.com\/ko\/contact-us\/\">\ucfe0\uc559\uc57c<\/a> \uadc0\ud558\uc758 \ucd5c\ub300 \uc2dc\uc2a4\ud15c \uc804\uc555, \ubaa8\ub4c8 \uc2a4\ud2b8\ub9c1 \uad6c\uc131, \ucd5c\uc18c \ud604\uc7a5 \uc628\ub3c4, \uc124\uce58 \uc704\uce58, \uc811\uc9c0 \ubc29\uc2dd \ubc0f \ud53c\ub8b0 \uc124\ube44 \uc870\uac74\uc744 \uc54c\ub824\uc8fc\uc2ed\uc2dc\uc624. \ud574\ub2f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \uc801\ud569\ud55c Type 1, Type 2 \ub610\ub294 Type 1+2 \ubaa8\ub378\uc744 \ucd94\ucc9c\ud574 \ub4dc\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<hr \/>\n<h2>\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n<h3>Class I\uacfc Class II DC SPD\uc758 \ucc28\uc774\uc810\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/h3>\n<p>Class I (Type 1) DC SPDs are tested with a 10\/350 \u03bcs lightning-current impulse and are intended for installations where partial lightning current may enter the PV system. Class II (Type 2) DC SPDs are tested with an 8\/20 \u03bcs waveform and mainly protect against induced lightning and switching surges.<\/p>\n<h3>Can a Type 2 SPD protect a PV system from direct lightning?<\/h3>\n<p>A Type 2 SPD is not automatically suitable for direct-lightning-current duty. Where lightning current can enter the installation, use a properly tested Type 1 or Type 1+2 SPD as required by the lightning protection and risk assessment.<\/p>\n<h3>How do I choose Ucpv for a DC SPD?<\/h3>\n<p>Choose a Ucpv rating that is not lower than the PV array maximum open-circuit voltage after correcting module Voc for the lowest expected site temperature. Also verify the inverter voltage limit and the manufacturer\u2019s installation requirements.<\/p>\n<h3>Where should DC SPDs be installed?<\/h3>\n<p>Typical locations include PV combiner boxes and inverter DC inputs. Long cable routes or lightning protection zone boundaries may require coordinated SPDs at more than one location.<\/p>\n<h2>Standards Referenced<\/h2>\n<ul>\n<li>IEC 61643-31 \u2014 Requirements and test methods for SPDs for photovoltaic installations.<\/li>\n<li>IEC 61643-32 \u2014 Selection and application principles for SPDs connected to the DC side of photovoltaic installations.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>A Practical Guide to Class I, Class II and Class III Surge Protective Devices DC surge protective devices (SPDs) are used on the DC side of photovoltaic systems to limit transient overvoltages and divert surge current before it damages inverters, monitoring equipment, combiner boxes and other sensitive components. However, markings such as Class I, Class [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-4376","post","type-post","status-publish","format-standard","hentry","category-blog"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/posts\/4376","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/comments?post=4376"}],"version-history":[{"count":3,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/posts\/4376\/revisions"}],"predecessor-version":[{"id":4395,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/posts\/4376\/revisions\/4395"}],"wp:attachment":[{"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/media?parent=4376"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/categories?post=4376"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnkuangya.com\/ko\/wp-json\/wp\/v2\/tags?post=4376"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}