{"id":2224,"date":"2025-10-24T19:40:09","date_gmt":"2025-10-24T19:40:09","guid":{"rendered":"https:\/\/sinobreaker.com\/dc-breaker-solar-string-combiner-protection\/"},"modified":"2025-10-25T08:01:13","modified_gmt":"2025-10-25T08:01:13","slug":"dc-breaker-solar-string-combiner-protection","status":"publish","type":"post","link":"https:\/\/sinobreaker.com\/ko\/dc-breaker-solar-string-combiner-protection\/","title":{"rendered":"DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uc5f4: \uc2a4\ud2b8\ub9c1 \ub300 \ucef4\ubc14\uc774\ub108 \ubcf4\ud638 \uac00\uc774\ub4dc 2025"},"content":{"rendered":"

\uc18c\uac1c<\/h2>\n\n\n\n

\uc548\uc804\ud558\uace0 \uaddc\uc815\uc744 \uc900\uc218\ud558\ub294 \ud0dc\uc591\uad11 \uc2dc\uc2a4\ud15c\uc744 \uc124\uacc4\ud558\ub824\uba74 DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uc774\ud574\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4. \ud0dc\uc591\uad11 \uc124\uce58\uc5d0\ub294 \uace0\uac00\uc758 \uc7a5\ube44\ub97c \ubcf4\ud638\ud558\uace0 \ud654\uc7ac \uc704\ud5d8\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uac1c\ubcc4 \uc2a4\ud2b8\ub9c1 \ud68c\ub85c\ubd80\ud130 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4 \ub4f1 \uc5ec\ub7ec \uc9c0\uc810\uc5d0\uc11c \ud2b9\uc218 \uacfc\uc804\ub958 \ubcf4\ud638 \uae30\ub2a5\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uae30\uc874\uc758 AC \uc804\uae30 \uc2dc\uc2a4\ud15c\uacfc \ub2ec\ub9ac \ud0dc\uc591\uad11 DC \ud68c\ub85c\ub294 \uace0\uc720\ud55c \uacfc\uc81c\ub97c \uc548\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ud0dc\uc591\uad11 \uc5b4\ub808\uc774\ub294 \uc5ec\ub7ec \uc18c\uc2a4\uc5d0\uc11c \ub3d9\uc2dc\uc5d0 \uace0\uc7a5 \uc804\ub958\ub97c \uc0dd\uc131\ud560 \uc218 \uc788\uc73c\uba70, DC \uc544\ud06c\ub294 AC \uc544\ud06c\ubcf4\ub2e4 \uc18c\uba78\ud558\uae30\uac00 \ub354 \uc5b4\ub835\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc2dc\uc2a4\ud15c \uc548\uc804\uacfc \uc131\ub2a5\uc744 \uc704\ud574\uc11c\ub294 \uc62c\ubc14\ub978 DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ubcf4\ud638 \uc804\ub7b5\uc744 \uc120\ud0dd\ud558\ub294 \uac83\uc774 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc774 \uac00\uc774\ub4dc\uc5d0\uc11c\ub294 \ub450 \uac00\uc9c0 \uc8fc\uc694 DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ubcf4\ud638 \uc544\ud0a4\ud14d\ucc98\uc778 \uc2a4\ud2b8\ub9c1 \ub808\ubca8 \ubcf4\ud638\uc640 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4 \ubcf4\ud638\uc5d0 \ub300\ud574 \uc124\uba85\ud569\ub2c8\ub2e4. \uac01 \uc811\uadfc \ubc29\uc2dd\uc774 \ud544\uc694\ud55c \uacbd\uc6b0, NEC 690.9\uc5d0\uc11c \uc124\uce58 \uc694\uad6c \uc0ac\ud56d\uc744 \uaddc\uc815\ud558\ub294 \ubc29\ubc95, \ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \uac00\uc7a5 \uc911\uc694\ud55c \ucc28\ub2e8\uae30 \uc0ac\uc591\uc5d0 \ub300\ud574 \uc54c\uc544\ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\n

\ud83d\udca1 \uae30\ucd08 \uac1c\ub150<\/strong>: \ud558\ub098 \uc774\uc0c1\uc758 \uc804\uc6d0\uc5d0\uc11c \uc804\ub825\uc744 \uacf5\uae09\ubc1b\uc744 \uc218 \uc788\ub294 \ubaa8\ub4e0 PV \ud68c\ub85c\uc5d0\ub294 \uacfc\uc804\ub958 \ubcf4\ud638\uac00 \ud544\uc694\ud558\uba70, \uc774 \uae30\ubcf8 NEC \uaddc\uce59\uc740 \ubaa8\ub4e0 DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uacb0\uc815\uc744 \uc8fc\ub3c4\ud569\ub2c8\ub2e4.<\/p>\n<\/blockquote>\n\n\n\n

DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ubcf4\ud638\ub780 \ubb34\uc5c7\uc778\uac00\uc694? (\uc77c\ubc18 \uc601\uc5b4)<\/h2>\n\n\n\n

DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ubcf4\ud638\ub294 \uacfc\uc804\ub958 \uc0c1\ud0dc\ub97c \ubc29\uc9c0\ud558\uace0 \uc7a5\ube44\ub97c \ubcf4\ud638\ud558\uba70 \uc548\uc804\ud55c \uc720\uc9c0\ubcf4\uc218 \ubd84\ub9ac\ub97c \uc704\ud574 \ud0dc\uc591\uad11 \uc2dc\uc2a4\ud15c \uc804\uccb4\uc5d0 DC \uc815\uaca9 \ud68c\ub85c \ucc28\ub2e8\uae30\ub97c \uc804\ub7b5\uc801\uc73c\ub85c \ubc30\uce58\ud558\ub294 \uac83\uc744 \ub9d0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc801\uc6a9 \ubd84\uc57c \uc138\ubd84\ud654<\/h3>\n\n\n\n

\ubb38\uc790\uc5f4 \uc218\uc900 \ubcf4\ud638<\/strong>: \uc9c1\ub82c\ub85c \uc5f0\uacb0\ub41c \uac01 \ud0dc\uc591\uad11 \ud328\ub110 \uadf8\ub8f9\uc774 \ub2e4\ub978 \uc2a4\ud2b8\ub9c1\uacfc \uacb0\ud569\ub418\uae30 \uc804\uc5d0 \ubcf4\ud638\ud558\ub294 \uac1c\ubcc4 \ud68c\ub85c \ucc28\ub2e8\uae30\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\ucef4\ubc14\uc774\ub108 \ub808\ubca8 \ubcf4\ud638<\/strong>: \uc778\ubc84\ud130 \ub610\ub294 \ucda9\uc804 \ucee8\ud2b8\ub864\ub7ec\uc5d0 \uacf5\uae09\ub418\ub294 \uc5ec\ub7ec \uc2a4\ud2b8\ub9c1\uc758 \uacb0\ud569 \ucd9c\ub825\uc744 \ubcf4\ud638\ud558\ub294 \ud68c\ub85c \ucc28\ub2e8\uae30\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc5b4\ub808\uc774 \uc218\uc900 \ubcf4\ud638<\/strong>: \ucef4\ubc14\uc774\ub108 \ud3ec\uc778\ud2b8\uc640 \uc778\ubc84\ud130 \uc785\ub825 \uc0ac\uc774\uc5d0\uc11c \uc804\uccb4 \uacb0\ud569 \uc5b4\ub808\uc774 \ucd9c\ub825\uc744 \ubcf4\ud638\ud558\ub294 \uba54\uc778 DC \ucc28\ub2e8\uae30\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc2e4\uc81c\ub85c \uc5b4\ub5a4 \uae30\ub2a5\uc744 \ud558\ub098\uc694?<\/h3>\n\n\n\n

\ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 DC \ucc28\ub2e8\uae30\ub294 \ub124 \uac00\uc9c0 \uc911\uc694\ud55c \uc548\uc804 \ubc0f \uc791\ub3d9 \uae30\ub2a5\uc744 \uc218\ud589\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n

1. \uc5ed\uc804\ub958 \ubcf4\ud638<\/strong>: \uc815\uc0c1 \uc2a4\ud2b8\ub9c1\uc758 \uc804\ub958\uac00 \uc804\uc555\uc744 \uc801\uac8c \uc0dd\uc131\ud558\ub294 \uacb0\ud568\uc774 \uc788\uac70\ub098 \uc74c\uc601 \ucc98\ub9ac\ub41c \uc2a4\ud2b8\ub9c1\uc73c\ub85c \uc5ed\uacf5\uae09\ub418\ub294 \uac83\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

2. \uc811\uc9c0 \uc624\ub958 \ubcf4\ud638<\/strong>: \uc808\uc5f0 \uc7a5\uc560\ub85c \uc778\ud574 \uc811\uc9c0\ub85c \uc804\ub958 \uacbd\ub85c\uac00 \uc0dd\uc131\ub418\uba74 \ud68c\ub85c\ub97c \uac1c\ubc29\ud558\uc5ec \uac10\uc804 \uc704\ud5d8\uacfc \ud654\uc7ac \uc704\ud5d8\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

3. \uc720\uc9c0 \uad00\ub9ac \uaca9\ub9ac<\/strong>: \uae30\uc220\uc790\uac00 \uc804\uccb4 \uc5b4\ub808\uc774\uc758 \uc804\uc6d0\uc744 \ucc28\ub2e8\ud558\uc9c0 \uc54a\uace0\ub3c4 \ud2b9\uc815 \uc2a4\ud2b8\ub9c1 \ub610\ub294 \ucef4\ubc14\uc774\ub108 \uc139\uc158\uc5d0\uc11c \uc548\uc804\ud558\uac8c \uc791\uc5c5\ud560 \uc218 \uc788\ub3c4\ub85d \uac00\uc2dc\uc801\uc778 \ubd84\ub9ac \uc9c0\uc810\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

4. \uc7a5\ube44 \ubcf4\ud638<\/strong>: \uace0\uc7a5 \uc804\ub958\uac00 \ud30c\uad34\uc801\uc778 \uc218\uc900\uc5d0 \ub3c4\ub2ec\ud558\uae30 \uc804\uc5d0 \ucc28\ub2e8\ud558\uc5ec \ubc30\uc120, \ucee4\ub125\ud130, \ubaa8\ub4c8 \ubc0f \uc778\ubc84\ud130\uc758 \uacfc\uc804\ub958 \uc190\uc0c1\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc2e4\uc81c \uc138\uacc4 \ube44\uc720<\/strong>: DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ubcf4\ud638\ub97c \uac74\ubb3c\uc758 \uc2a4\ud504\ub9c1\ud074\ub7ec \uc2dc\uc2a4\ud15c\ucc98\ub7fc \uc0dd\uac01\ud558\uba74 \ub429\ub2c8\ub2e4. \uac1c\ubcc4 \uc2a4\ud504\ub9c1\ud074\ub7ec(\uc2a4\ud2b8\ub9c1 \ucc28\ub2e8\uae30)\ub294 \ud2b9\uc815 \uad6c\uc5ed\uc744 \ubcf4\ud638\ud558\uace0 \uba54\uc778 \ubc38\ube0c(\ucef4\ubc14\uc774\ub108 \ucc28\ub2e8\uae30)\ub294 \uc804\uccb4 \uce35\uc744 \uc81c\uc5b4\ud569\ub2c8\ub2e4. \ub450 \ub2e8\uacc4\uac00 \ud568\uaed8 \uc791\ub3d9\ud558\uc5ec \ubb38\uc81c\uac00 \ud655\uc0b0\ub418\uae30 \uc804\uc5d0 \ucc28\ub2e8\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud0dc\uc591\uad11 \uc2dc\uc2a4\ud15c\uc5d0 DC \ucc28\ub2e8\uae30 \ubcf4\ud638\uac00 \ud544\uc694\ud55c \uc774\uc720<\/h2>\n\n\n\n

1. NEC 690.9 \uacfc\uc804\ub958 \ubcf4\ud638 \uc694\uad6c \uc0ac\ud56d<\/h3>\n\n\n\n

\ubbf8\uad6d \uc804\uae30 \uaddc\uc815\uc740 \uc5ec\ub7ec \uc18c\uc2a4\uc5d0\uc11c \uc804\uc6d0\uc744 \uacf5\uae09\ubc1b\uc744 \uc218 \uc788\ub294 \ubaa8\ub4e0 PV \ud68c\ub85c\uc5d0 \uacfc\uc804\ub958 \ubcf4\ud638\ub97c \uc758\ubb34\ud654\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc2a4\ud2b8\ub9c1\uc774 \ub2e4\ub978 \ubcd1\ub82c \uc2a4\ud2b8\ub9c1\uc73c\ub85c\ubd80\ud130 \uc5ed\uacf5\uae09 \uc804\ub958\ub97c \ubc1b\uc744 \uc218 \uc788\ub294 \uacbd\uc6b0, \uc0ac\uc6a9 \uac00\ub2a5\ud55c \ucd5c\ub300 \uace0\uc7a5 \uc804\ub958\uc5d0 \uc815\uaca9\ub41c DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ubcf4\ud638 \uc7a5\uce58\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc2e4\uc81c \uc0ac\ub840<\/strong>: \uac01 \uc2a4\ud2b8\ub9c1\uc758 \uc815\uaca9\uc774 10A\uc778 10\uac1c\uc758 \uc2a4\ud2b8\ub9c1 \uc5b4\ub808\uc774. \uc2a4\ud2b8\ub9c1 \ucc28\ub2e8\uae30\uac00 \uc5c6\uc73c\uba74 \uacb0\ud568\uc774 \uc788\ub294 \uc2a4\ud2b8\ub9c1\uc774 9\uac1c\uc758 \uc815\uc0c1 \uc2a4\ud2b8\ub9c1\uc73c\ub85c\ubd80\ud130 10A \uc804\uc120 \ubc0f \ucee4\ub125\ud130 \uc815\uaca9\uc744 \ud6e8\uc52c \ucd08\uacfc\ud558\ub294 90A\uc758 \uc5ed\uc804\ub958\ub97c \ubc1b\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

2. \uc625\uc0c1 \ud658\uacbd\uc5d0\uc11c\uc758 \ud654\uc7ac \uc608\ubc29<\/h3>\n\n\n\n

\ud0dc\uc591\uad11 \uc5b4\ub808\uc774\ub294 \uc628\ub3c4 \ubcc0\ud654, \uc790\uc678\uc120 \ub178\ucd9c, \uc2b5\uae30 \uce68\ud22c \ub4f1 \uc5f4\uc545\ud55c \uc870\uac74\uc5d0\uc11c \uc791\ub3d9\ud569\ub2c8\ub2e4. \uc2dc\uac04\uc774 \uc9c0\ub0a8\uc5d0 \ub530\ub77c \uc5f0\uacb0\uc774 \ub290\uc2a8\ud574\uc9c0\uac70\ub098 \uc808\uc5f0\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ubcf4\ud638 \uc2dc\uc2a4\ud15c\uc740 \uc544\ud06c\uac00 \uc9c0\ubd95 \uc7ac\ub8cc\ub098 \uc815\uc158 \ubc15\uc2a4\ub97c \uc810\ud654\ud558\uae30 \uc804\uc5d0 \uc544\ud06c\ub97c \ucc28\ub2e8\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

DC \uc544\ud06c\ub294 \uad6c\ub9ac\ub97c \ub179\uc774\uace0 \uac00\uc5f0\uc131 \ubb3c\uc9c8\uc744 \uba87 \ucd08 \uc548\uc5d0 \uc810\ud654\ud560 \uc218 \uc788\uc744 \uc815\ub3c4\ub85c \ub728\uac70\uc6b4 3,000\u00b0C \uc774\uc0c1\uc758 \uc628\ub3c4\ub97c \ubc1c\uc0dd\uc2dc\ud0b5\ub2c8\ub2e4. \uc544\ud06c \uc624\ub958 \uac10\uc9c0 \uae30\ub2a5\uc774 \uc788\ub294 \uc801\uc808\ud55c \uc815\uaca9 DC \ucc28\ub2e8\uae30\ub294 \uc774\ub7ec\ud55c \uc774\ubca4\ud2b8\ub97c 30~50\ubc00\ub9ac\ucd08 \ub0b4\uc5d0 \ucc28\ub2e8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

3. \uaddc\uc815 \uc900\uc218 \ubc0f \ubcf4\ud5d8 \uc694\uac74<\/h3>\n\n\n\n

\ub300\ubd80\ubd84\uc758 \uad00\ud560\uad8c\uc5d0\uc11c\ub294 \ud0dc\uc591\uad11 \uc124\uce58\uac00 NEC 690\uc870 \ud45c\uc900\uc744 \ucda9\uc871\ud558\ub3c4\ub85d \uc694\uad6c\ud569\ub2c8\ub2e4. \uac80\uc0ac\uad00\uc740 \ud2b9\ud788 DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ubcf4\ud638 \uc7a5\uce58\uac00 \uc788\ub294\uc9c0 \ud655\uc778\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n

- DC \uc804\uc555\uc6a9 \uc815\uaca9(AC \ucc28\ub2e8\uae30 \uc81c\uc678)
- \ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc6a9(UL 1077 \ub610\ub294 UL 489) \uc778\uc99d \ud68d\ub4dd
- \uc2a4\ud2b8\ub9c1 \ub610\ub294 \ucef4\ubc14\uc774\ub108 \ud68c\ub85c \uc804\ub958\uc5d0 \ub9de\ub294 \uc62c\ubc14\ub978 \ud06c\uae30
- \uc720\uc9c0\ubcf4\uc218 \ubc0f \ube44\uc0c1 \uc885\ub8cc \uc2dc \uc561\uc138\uc2a4 \uac00\ub2a5<\/p>\n\n\n\n

\ucf54\ub4dc\uc5d0 \ud544\uc694\ud55c \uc774\uc720<\/strong>: 2010\ub144\ubd80\ud130 2020\ub144\uae4c\uc9c0\uc758 \ud604\uc7a5 \ub370\uc774\ud130\uc5d0 \ub530\ub974\uba74 64%\uc758 \ud0dc\uc591\uacc4 \ud654\uc7ac\ub294 \uc801\uc808\ud55c \ud68c\ub85c \ubcf4\ud638\ub85c \uc608\ubc29\ud558\uac70\ub098 \uc5b5\uc81c\ud560 \uc218 \uc788\uc5c8\ub358 DC \uce21 \uc544\ud06c \uacb0\ud568\uc5d0\uc11c \ube44\ub86f\ub41c \uac83\uc73c\ub85c \ub098\ud0c0\ub0ac\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

4. \uc2dc\uc2a4\ud15c \ud655\uc7a5\uc131 \ubc0f \uc720\uc9c0 \uad00\ub9ac \uc561\uc138\uc2a4<\/h3>\n\n\n\n

DC \ucc28\ub2e8\uae30\ub294 \ubaa8\ub4c8\uc2dd \ud655\uc7a5\uacfc \ubb38\uc81c \ud574\uacb0\uc744 \uac00\ub2a5\ud558\uac8c \ud569\ub2c8\ub2e4. \uc2a4\ud2b8\ub9c1\uc758 \uc131\ub2a5\uc774 \uc800\ud558\ub418\uba74 \uae30\uc220\uc790\ub294 \uc804\uccb4 \uc5b4\ub808\uc774\ub97c \uc885\ub8cc\ud558\uc9c0 \uc54a\uace0 \ud574\ub2f9 \ud68c\ub85c\ub9cc \ubd84\ub9ac\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c \uc11c\ube44\uc2a4 \uc791\uc5c5 \uc911 \uc0dd\uc0b0 \uc190\uc2e4\uc744 \ucd5c\uc18c\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

5. \uc7a5\ube44 \ubcf4\uc99d \ubcf4\ud638<\/h3>\n\n\n\n

\uc8fc\uc694 \uc778\ubc84\ud130 \uc81c\uc870\uc5c5\uccb4\ub294 \ubaa8\ub4e0 DC \uc785\ub825\uc5d0 \ub300\ud574 NEC\ub97c \uc900\uc218\ud558\ub294 \uacfc\uc804\ub958 \ubcf4\ud638 \uae30\ub2a5\uc744 \uc694\uad6c\ud569\ub2c8\ub2e4. \uc801\uc808\ud55c DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ubcf4\ud638 \uae30\ub2a5\uc774 \uc5c6\ub294 \uc2dc\uc2a4\ud15c\uc744 \uc124\uce58\ud558\uba74 \uc778\ubc84\ud130 \uad50\uccb4 \uc2dc \uc218\ucc9c \ub2ec\ub7ec\uc5d0 \ub2ec\ud558\ub294 \ubcf4\uc99d\uc774 \ubb34\ud6a8\ud654\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uc5f4 \ubcf4\ud638 \uc791\ub3d9 \ubc29\uc2dd: \uac04\ub2e8\ud55c \ubc84\uc804<\/h2>\n\n\n\n

\ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc6a9\uc73c\ub85c \uc124\uacc4\ub41c DC \ucc28\ub2e8\uae30\ub294 \uace0\uc804\uc555, \uc9c0\uc18d\uc801\uc778 \uace0\uc7a5 \uc804\ub958, \uc18c\ud654\ud558\uae30 \uc5b4\ub824\uc6b4 DC \uc544\ud06c\uc640 \uac19\uc740 \ud0dc\uc591\uad11 \ud68c\ub85c\uc758 \uace0\uc720\ud55c \ubb38\uc81c\ub97c \ucc98\ub9ac\ud558\uae30 \uc704\ud574 \ud2b9\uc218 \uba54\ucee4\ub2c8\uc998\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud558\ub098\uc758 \uc7a5\uce58\uc5d0 \ub450 \uac00\uc9c0 \ubcf4\ud638 \uae30\ub2a5 \uc81c\uacf5<\/h3>\n\n\n\n

DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \uc7a5\uce58\ub294 \ub3c4\uc5b4 \uc7a0\uae08\uc7a5\uce58\uc640 \ub370\ub4dc\ubcfc\ud2b8\ucc98\ub7fc \ud68c\ub85c \ucc28\ub2e8\uae30\uc640 \ucc28\ub2e8 \uc2a4\uc704\uce58\uc758 \uae30\ub2a5\uc744 \uacb0\ud569\ud558\uc5ec \ubcf4\uc548\uacfc \uc811\uadfc \uc81c\uc5b4 \uae30\ub2a5\uc744 \ubaa8\ub450 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

#### \uc5f4-\uc790\uae30 \ud2b8\ub9bd: \uacfc\uc804\ub958 \uac00\ub514\uc5b8<\/p>\n\n\n\n

\uae30\ub2a5<\/strong>: \ud68c\ub85c \uc804\ub958\uac00 \uc548\uc804 \uc218\uc900\uc744 \ucd08\uacfc\ud558\uba74 \uc774\ub97c \uac10\uc9c0\ud558\uace0 \uc790\ub3d9\uc73c\ub85c \uc811\uc810\uc744 \uc5f4\uc5b4 \ud750\ub984\uc744 \ucc28\ub2e8\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc791\ub3d9 \ubc29\uc2dd<\/strong>: \ubc14\uc774\uba54\ud0c8 \uc2a4\ud2b8\ub9bd\uc740 \uacfc\ub3c4\ud55c \uc804\ub958\uac00 \ud750\ub974\uba74 \uac00\uc5f4\ub418\uc5b4 \uc2a4\ud504\ub9c1\uc774 \uc7a5\ucc29\ub41c \uba54\ucee4\ub2c8\uc998\uc774 \ud574\uc81c\ub420 \ub54c\uae4c\uc9c0 \uad6c\ubd80\ub7ec\uc9d1\ub2c8\ub2e4. \ub354 \ube60\ub978 \ub2e8\ub77d \ubc1c\uc0dd\uc744 \uc704\ud574 \uc790\uae30 \ucf54\uc77c\uc740 \ucc28\ub2e8\uae30\ub97c \uc989\uc2dc \ud2b8\ub9bd\ud560 \uc218 \uc788\ub294 \ucda9\ubd84\ud55c \ud798\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

100A \uc8fc \ucc28\ub2e8\uae30\uc5d0 8\uac1c\uc758 10A \uc2a4\ud2b8\ub9c1\uc774 \uacf5\uae09\ub418\ub294 \ud0dc\uc591\uad11 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4\uc5d0\uc11c \ud55c \uc2a4\ud2b8\ub9c1\uc5d0 15A\uac00 \ud750\ub974\ub294 \uc624\ub958\uac00 \ubc1c\uc0dd\ud558\uba74 60\ucd08 \uc774\ub0b4\uc5d0 (\uc5ed\uc2dc\uac04-\uc804\ub958 \uace1\uc120\uc744 \ub530\ub77c) \uac1c\ubcc4 15A \uc815\uaca9 \ucc28\ub2e8\uae30\uac00 \ud2b8\ub9bd\ub418\uc5b4 \ud574\ub2f9 \uc2a4\ud2b8\ub9c1\ub9cc \ubd84\ub9ac\ub418\uace0 \ub098\uba38\uc9c0 7\uac1c\ub294 \uacc4\uc18d \uc791\ub3d9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

##### \uc544\ud06c \uacb0\ud568 \uac10\uc9c0: \uc548\uc804 \ubaa8\ub2c8\ud130<\/p>\n\n\n\n

\uae30\ub2a5<\/strong>: \uc804\ub958\uac00 \uacfc\uc804\ub958 \ud2b8\ub9bd \uc218\uc900 \uc774\ud558\ub85c \uc720\uc9c0\ub418\ub294 \uacbd\uc6b0\uc5d0\ub3c4 \uc704\ud5d8\ud55c \uc544\ud06c \uc870\uac74\uc758 \uc804\uae30\uc801 \uc2e0\ud638\ub97c \uc778\uc2dd\ud558\uc5ec \ud654\uc7ac\uac00 \uc2dc\uc791\ub418\uae30 \uc804\uc5d0 \ud68c\ub85c\ub97c \ucc28\ub2e8\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc791\ub3d9 \ubc29\uc2dd<\/strong>: \ub9c8\uc774\ud06c\ub85c\ud504\ub85c\uc138\uc11c \ud68c\ub85c\uac00 \uc804\ub958 \ud30c\ud615\uc744 \ubd84\uc11d\ud558\uc5ec \uc544\ud06c\uc758 \ud2b9\uc9d5\uc778 \uace0\uc8fc\ud30c \ub178\uc774\uc988 \ud328\ud134\uc744 \uac10\uc9c0\ud569\ub2c8\ub2e4. 0.5\ucd08 \uc774\uc0c1 \uac10\uc9c0\ub418\uba74 \ucc28\ub2e8\uae30\uac00 \uc791\ub3d9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ucd5c\uc2e0 \uc544\ud06c \uace0\uc7a5 \ud68c\ub85c \ucc28\ub2e8\uae30(AFCI)\ub294 \uc778\ubc84\ud130 \uc2a4\uc704\uce6d\uacfc \uac19\uc740 \ubb34\ud574\ud55c \uc544\ud06c\uc640 \uc190\uc0c1\ub41c \ub3c4\uccb4 \ub610\ub294 \ub290\uc2a8\ud55c \uc5f0\uacb0\ub85c \uc778\ud55c \uc704\ud5d8\ud55c \uc9c1\ub82c \uc544\ud06c\ub97c \uad6c\ubd84\ud560 \uc218 \uc788\uc73c\uba70, \uc9c1\ub82c \uc544\ud06c\ub294 \ud68c\ub85c \uc804\ub958\ub97c \uc99d\uac00\uc2dc\ud0a4\uc9c0 \uc54a\uae30 \ub54c\ubb38\uc5d0 \ub9e4\uc6b0 \uc911\uc694\ud55c \uae30\ub2a5\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\"DC<\/figure>\n\n\n\n

\uc2a4\ud2b8\ub9c1 \ub808\ubca8 \ub300 \ucef4\ubc14\uc774\ub108 \ub808\ubca8 DC \ucc28\ub2e8\uae30 \ubcf4\ud638<\/h2>\n\n\n\n

\ubb38\uc790\uc5f4 \uc218\uc900 \ubcf4\ud638 \uc544\ud0a4\ud14d\ucc98<\/h3>\n\n\n\n

\ub0b4\uc6a9<\/strong>: \ub3c4\uccb4\uac00 \ub2e4\ub978 \uc2a4\ud2b8\ub9c1\uacfc \uacb0\ud569\ud558\uae30 \uc804\uc5d0 \uac01 PV \uc18c\uc2a4 \ud68c\ub85c\uc5d0 \uc124\uce58\ub41c \uac1c\ubcc4 \ud68c\ub85c \ucc28\ub2e8\uae30.<\/p>\n\n\n\n

\u2705 \uc7a5\uc810:<\/strong>
- \ucd5c\ub300\ud55c \uc138\ubd84\ud654\ub41c \uc81c\uc5b4 - \uc720\uc9c0\ubcf4\uc218\ub97c \uc704\ud574 \ub2e8\uc77c \ubb38\uc790\uc5f4\uc744 \ubd84\ub9ac\ud569\ub2c8\ub2e4.
- \uc815\uc0c1 \uc2a4\ud2b8\ub9c1\uc5d0\uc11c \uacb0\ud568\uc774 \uc788\ub294 \uc2a4\ud2b8\ub9c1\uc73c\ub85c\uc758 \uc5ed\uc804\ub958 \uc190\uc0c1 \ubc29\uc9c0
- \uac1c\ubcc4 \ubb38\uc790\uc5f4 \ud14c\uc2a4\ud2b8\ub97c \ud5c8\uc6a9\ud558\uc5ec \ubb38\uc81c \ud574\uacb0\uc744 \uac04\uc18c\ud654\ud569\ub2c8\ub2e4.
- \ucd5c\ub300 \uc2dc\uc2a4\ud15c \uc804\uc555\uc774 30V\ub97c \ucd08\uacfc\ud558\uace0 \uc2a4\ud2b8\ub9c1\uc774 \uc5ed\uacf5\uae09\ub420 \uc218 \uc788\ub294 \uacbd\uc6b0 NEC 690.9(A)\uc5d0 \ub530\ub77c \uc694\uad6c\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\u274c \ub2e8\uc810:<\/strong>
- \ub354 \ub192\uc740 \uad6c\uc131 \uc694\uc18c \ube44\uc6a9(\uc2a4\ud2b8\ub9c1\ub2f9 \ucc28\ub2e8\uae30 1\uac1c)
- \ub354 \ubcf5\uc7a1\ud55c \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4 \ubc30\uc120
- \ucd94\uac00 \uc5f0\uacb0 \uc9c0\uc810(\uc7a0\uc7ac\uc801 \uc7a5\uc560 \ubaa8\ub4dc)<\/p>\n\n\n\n

\ucd5c\uc0c1\uc758 \ub300\uc0c1:<\/strong> 4\uac1c \uc774\uc0c1\uc758 \ubcd1\ub82c \uc2a4\ud2b8\ub9c1\uc774 \uc788\ub294 \uc5b4\ub808\uc774, \uac1c\ubcc4 \uc2a4\ud2b8\ub9c1 \ubaa8\ub2c8\ud130\ub9c1\uc774 \ud544\uc694\ud55c \uc2dc\uc2a4\ud15c, \ucd5c\ub300\ud55c\uc758 \uc548\uc804 \uaddc\uc815 \uc900\uc218\uac00 \ud544\uc694\ud55c \uc124\uce58.<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc778 \uad6c\uc131:<\/strong>
- 8-\uc2a4\ud2b8\ub9c1 \uc8fc\uac70\uc6a9 \uc5b4\ub808\uc774: \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4 \ub0b4 8\uac1c\uc758 15A DC \ucc28\ub2e8\uae30
- \uac01 \ucc28\ub2e8\uae30\ub294 NEC 690.8\uc5d0 \ub530\ub77c 1.56\u00d7 \uc2a4\ud2b8\ub9c1 Isc \ub4f1\uae09\uc744 \ubc1b\uc558\uc2b5\ub2c8\ub2e4.
- \uc2a4\ud2b8\ub9c1\uc5d0\uc11c 9.6A Isc \uc0dd\uc131 \u2192 \ucd5c\uc18c 15A \ucc28\ub2e8\uae30 \ud544\uc694<\/p>\n\n\n\n

\ucef4\ubc14\uc774\ub108 \ub808\ubca8 \ubcf4\ud638 \uc804\uc6a9<\/h3>\n\n\n\n

\ub0b4\uc6a9<\/strong>: \ubaa8\ub4e0 \uc2a4\ud2b8\ub9c1\uc774 \ubcd1\ub82c\ub85c \uc5f0\uacb0\ub41c \ud6c4 \uacb0\ud569\ub41c \ucd9c\ub825\uc744 \ubcf4\ud638\ud558\ub294 \ub2e8\uc77c \ud68c\ub85c \ucc28\ub2e8\uae30.<\/p>\n\n\n\n

\u2705 \uc7a5\uc810:<\/strong>
- \ucd08\uae30 \ube44\uc6a9 \uc808\uac10(\uc2a4\ud2b8\ub9c1\ub2f9 \ucc28\ub2e8\uae30\uac00 \uc544\ub2cc \ud558\ub098\uc758 \ucc28\ub2e8\uae30)
- \ucef4\ubc14\uc774\ub108 \uc778\ud074\ub85c\uc800\uc758 \ubc30\uc120 \uac04\uc18c\ud654
- \uc720\uc9c0 \uad00\ub9ac\ud560 \uad6c\uc131 \uc694\uc18c \uc218 \uac10\uc18c
- \uc18c\uaddc\ubaa8 \ubc30\uc5f4(2~3\uac1c \ubb38\uc790\uc5f4)\uc5d0 \uc801\ud569<\/p>\n\n\n\n

\u274c \ub2e8\uc810:<\/strong>
- \uc720\uc9c0 \uad00\ub9ac\ub97c \uc704\ud574 \uac1c\ubcc4 \ubb38\uc790\uc5f4\uc744 \ubd84\ub9ac\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.
- \uc2a4\ud2b8\ub9c1 \uac04 \uc5ed\uc804\ub958\uc5d0 \ub300\ud55c \ubcf4\ud638 \uae30\ub2a5 \uc5c6\uc74c
- \ubaa8\ub4e0 \uc11c\ube44\uc2a4 \uc791\uc5c5\uc744 \uc704\ud574 \uc804\uccb4 \uc5b4\ub808\uc774\ub97c \uc885\ub8cc\ud574\uc57c \ud569\ub2c8\ub2e4.
- \ub300\uaddc\ubaa8 \uc5b4\ub808\uc774\uc758 \uacbd\uc6b0 NEC 690.9\ub97c \ucda9\uc871\ud558\uc9c0 \ubabb\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ucd5c\uc0c1\uc758 \ub300\uc0c1:<\/strong> \uc18c\uaddc\ubaa8 \uc8fc\uac70\uc6a9 \uc2dc\uc2a4\ud15c(\ucd5c\ub300 2~3\uac1c \uc2a4\ud2b8\ub9c1), \uc804\uccb4 \uc167\ub2e4\uc6b4 \uc561\uc138\uc2a4\uac00 \uc6a9\uc774\ud55c \uc9c0\uc0c1 \uc7a5\ucc29 \uc5b4\ub808\uc774, \ube44\uc6a9\uc774 \uc8fc\uc694 \uc81c\uc57d \uc870\uac74\uc778 \uc560\ud50c\ub9ac\ucf00\uc774\uc158.<\/p>\n\n\n\n

\ud558\uc774\ube0c\ub9ac\ub4dc \uc544\ud0a4\ud14d\ucc98(\ub300\ubd80\ubd84\uc758 \uc124\uce58\uc5d0 \uad8c\uc7a5)<\/h3>\n\n\n\n

\ub450 \uac00\uc9c0 \ubcf4\ud638 \uc218\uc900\uc744 \uacb0\ud569\ud558\uc5ec \uc548\uc804\uc131\uc744 \uadf9\ub300\ud654\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n

\ubb38\uc790\uc5f4 \ucc28\ub2e8\uae30<\/strong> (\ud68c\ub85c\ub2f9 15~20A) \u2192 \ucef4\ubc14\uc774\ub108 \ubc84\uc2a4 \ubc14<\/strong> \u2192 \uba54\uc778 \ucc28\ub2e8\uae30<\/strong> (100-150A) \u2192 \uc778\ubc84\ud130<\/strong><\/p>\n\n\n\n

\uc774 \uc811\uadfc \ubc29\uc2dd\uc740 \ub2e4\uc74c\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4:
- \uac1c\ubcc4 \ubb38\uc790\uc5f4 \uaca9\ub9ac \uae30\ub2a5
- \uc18c\uc2a4\uc5d0\uc11c \uc5ed\uc804\ub958 \ubcf4\ud638
- \uc804\uccb4 \uc5b4\ub808\uc774\uc5d0 \ub300\ud55c \uba54\uc778 \uc5f0\uacb0 \ud574\uc81c
- \ubaa8\ub4e0 \ubcd1\ub82c \uc5f0\uacb0 \uc9c0\uc810\uc5d0\uc11c NEC 690.9 \uc900\uc218<\/p>\n\n\n\n

\ubcf4\ud638 \uc218\uc900<\/th>\ucc28\ub2e8\uae30 \uac1c\uc218<\/th>NEC \uaddc\uc815 \uc900\uc218<\/th>\ube44\uc6a9 \uc694\uc18c<\/th>\ubca0\uc2a4\ud2b8 \uc560\ud50c\ub9ac\ucf00\uc774\uc158<\/th><\/tr><\/thead>
\ubb38\uc790\uc5f4 \uc804\uc6a9<\/td>N(\ubb38\uc790\uc5f4\ub2f9 \ud558\ub098)<\/td>\ubd80\ubd84 - \uba54\uc778 \ud544\uc694<\/td>\ub192\uc74c<\/td>\ud63c\uc790 \uc0ac\uc6a9\ud558\uc9c0 \ub9c8\uc138\uc694.<\/td><\/tr>
\uacb0\ud569\uae30 \uc804\uc6a9<\/td>1(\uba54\uc778 \uc804\uc6a9)<\/td>\uc81c\ud55c(\u22643\uac1c \ubb38\uc790\uc5f4)<\/td>\ub0ae\uc74c<\/td>\uc18c\ud615 \uc8fc\uac70\uc6a9(\u22643\uac1c \ubb38\uc790\uc5f4)<\/td><\/tr>
\ud558\uc774\ube0c\ub9ac\ub4dc(\ubb38\uc790\uc5f4 + \uba54\uc778)<\/td>N + 1<\/td>\uc804\uccb4 NEC 690.9<\/td>\uc911\uac04-\ub192\uc74c<\/td>4+ \ubb38\uc790\uc5f4, \uc0c1\uc5c5\uc6a9, \ubaa8\ubc94 \uc0ac\ub840<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\"\ubc84\uc2a4<\/figure>\n\n\n\n

\uc77c\ubc18\uc801\uc778 DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158<\/h2>\n\n\n\n

\uc8fc\uac70\uc6a9 \uc625\uc0c1 \uc2dc\uc2a4\ud15c(3~10kW)<\/h3>\n\n\n\n

\uc77c\ubc18\uc801\uc778 \uc8fc\uac70\uc6a9 \uc124\uce58\uc5d0\uc11c\ub294 \ub2e8\uc77c \uc778\ubc84\ud130\uc5d0 \uacf5\uae09\ud558\ub294 6~12\uac1c\uc758 \ubcd1\ub82c \uc2a4\ud2b8\ub9c1\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc625\uc0c1 \uc5b4\ub808\uc774\ub294 \ube44\uc0c1 \ucc28\ub2e8\uc744 \uc704\ud574 \uc811\uadfc\ud558\uae30 \uc5b4\ub835\uace0 \uc18c\ubc29\uc11c \uc548\uc804 \ud504\ub85c\ud1a0\ucf5c\uc5d0 \ub530\ub77c \uc2e0\uc18d\ud55c \uc804\uc6d0 \ucc28\ub2e8\uc774 \ud544\uc694\ud558\uae30 \ub54c\ubb38\uc5d0 \uc2a4\ud2b8\ub9c1 \ub808\ubca8 DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ubcf4\ud638\ub294 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc694\uad6c \uc0ac\ud56d:<\/strong>
- \uc2a4\ud2b8\ub9c1 \ucc28\ub2e8\uae30: 15-25A DC \uc815\uaca9, 300V \uc774\uc0c1 \uc2dc\uc2a4\ud15c\uc758 \uacbd\uc6b0 \ucd5c\uc18c 600V
- \uba54\uc778 \ucef4\ubc14\uc774\ub108 \ucc28\ub2e8\uae30: \ucd1d \uc5b4\ub808\uc774 \uc804\ub958\uc5d0 \ub530\ub77c 80-150A
- \uc544\ud06c \uc624\ub958 \ubcf4\ud638: \uc9c0\ubd95 \uc7a5\ucc29 \uc2dc\uc2a4\ud15c\uc758 \uacbd\uc6b0 NEC 690.11\uc5d0 \ub530\ub77c \uc694\uad6c\ub428
- \uc778\ud074\ub85c\uc800: \uc2e4\uc678 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4\uc6a9 \ucd5c\uc18c NEMA 3R<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc778 \uad6c\uc131:<\/strong>
350W \ud328\ub110 10\uac1c\ub85c \uad6c\uc131\ub41c 8\uac1c\uc758 \uc2a4\ud2b8\ub9c1(Voc = 46V, Isc = \uac01 9.8A):
- \uc2a4\ud2b8\ub9c1 \uc804\uc555: 460V(\ud328\ub110 10\uac1c \u00d7 46V)
- \uc2a4\ud2b8\ub9c1 \uc804\ub958: 9.8A \u00d7 1.25 = 12.25A \ucd5c\uc18c \ucc28\ub2e8\uae30
- \uc2e4\uc81c \ucc28\ub2e8\uae30 \uc120\ud0dd: 15A(\ub2e4\uc74c \ud45c\uc900 \ud06c\uae30)
- \uc8fc \ucc28\ub2e8\uae30: 8 \uc2a4\ud2b8\ub9c1 \u00d7 12.25A \u00d7 1.25 = \ucd5c\uc18c 122A \u2192 125A \ucc28\ub2e8\uae30<\/p>\n\n\n\n

\n

\ud83c\udfaf \uc804\ubb38\uac00 \ud301<\/strong>: \uc778\ubc84\ud130 MPPT \ucee8\ud2b8\ub864\ub7ec\uac00 \uc804\ub958 \ubcf4\ud638 \uc7a5\uce58\ub97c \uc815\uc0c1 \uc791\ub3d9 \uc870\uac74\uc774 \uc544\ub2cc \ucd5c\uc545\uc758 \uace0\uc7a5 \uc2dc\ub098\ub9ac\uc624\ub97c \ucc98\ub9ac\ud558\ub3c4\ub85d \uc81c\ud55c\ud558\ub294 \uacbd\uc6b0\uc5d0\ub3c4 \ud56d\uc0c1 NEC 690.8(B)(1)\uc5d0 \ub530\ub77c \ucd5c\ub300 \uc2dc\uc2a4\ud15c \uc804\ub958 125%\uc5d0 \ub9de\uac8c \uba54\uc778 \ucef4\ubc14\uc774\ub108 \ucc28\ub2e8\uae30\uc758 \ud06c\uae30\ub97c \uacb0\uc815\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<\/blockquote>\n\n\n\n

\uc0c1\uc5c5\uc6a9 \uc9c0\uc0c1 \uc7a5\ucc29 \uc5b4\ub808\uc774(50-500kW)<\/h3>\n\n\n\n

\ub300\uaddc\ubaa8 \uc0c1\uc5c5 \uc2dc\uc124\uc5d0\uc11c\ub294 \uc778\ubc84\ud130 \uc55e\uc5d0 \uc911\uc559 DC \ubc30\uc804\ubc18\uc744 \uacf5\uae09\ud558\ub294 \uc5ec\ub7ec \uac1c\uc758 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4\ub97c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \uac01 \ucef4\ubc14\uc774\ub108\ub294 8~12\uac1c\uc758 \uc2a4\ud2b8\ub9c1\uc744 \uc9c0\uc6d0\ud558\uba70 \uc8fc \ucc28\ub2e8\uae30\ub294 200~400A \ub4f1\uae09\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc694\uad6c \uc0ac\ud56d:<\/strong>
- \uc6d0\uaca9 \ubaa8\ub2c8\ud130\ub9c1 \uae30\ub2a5\uc774 \uc788\ub294 \uc2a4\ud2b8\ub9c1 \ucc28\ub2e8\uae30
- \ube44\uc0c1 \uc815\uc9c0\ub97c \uc704\ud55c \uc158\ud2b8 \ud2b8\ub9bd \uae30\ub2a5\uc774 \uc788\ub294 \uba54\uc778 \ucef4\ubc14\uc774\ub108 \ucc28\ub2e8\uae30
- \ubaa8\ub4e0 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4\ub97c \uc5f0\uacb0\ud558\ub294 \uc811\uc9c0 \uc804\uadf9 \uc2dc\uc2a4\ud15c
- NEC 690.13\uc5d0 \ub530\ub77c \uc778\ubc84\ud130 \uc2dc\uc57c \ub0b4\uc5d0\uc11c \uc811\uadfc \uac00\ub2a5\ud55c \ubd84\ub9ac \uac00\ub2a5<\/p>\n\n\n\n

\uc774 \uaddc\ubaa8\uc5d0\uc11c \uc804\ub958 \ubaa8\ub2c8\ud130\ub9c1 \uae30\ub2a5\uc774 \uc788\ub294 DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ubd80\ud488\uc744 \uc120\ud0dd\ud558\uba74 \uac01 \uc2a4\ud2b8\ub9c1\uc744 \uc218\ub3d9\uc73c\ub85c \uac80\uc0ac\ud558\uc9c0 \uc54a\uace0\ub3c4 \uc131\ub2a5 \ucd94\uc801\uacfc \uc2e0\uc18d\ud55c \uace0\uc7a5 \uc704\uce58 \ud30c\uc545\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub3c5\ub9bd\ud615 \ubc30\ud130\ub9ac \uc2dc\uc2a4\ud15c(1-20kW)<\/h3>\n\n\n\n

\ubc30\ud130\ub9ac \uae30\ubc18 \uc2dc\uc2a4\ud15c\uc740 PV \uc18c\uc2a4 \ud68c\ub85c\uc640 \ubc30\ud130\ub9ac \ubc45\ud06c \ucd9c\ub825 \ud68c\ub85c \ubaa8\ub450\uc5d0\uc11c DC \ucc28\ub2e8\uae30 \ubcf4\ud638\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uc774\ub807\uac8c \ud558\uba74 \uc5ec\ub7ec \ubcf4\ud638 \uad6c\uc5ed\uc774 \uc0dd\uc131\ub429\ub2c8\ub2e4:<\/p>\n\n\n\n

\uc601\uc5ed 1 - \ud0dc\uc591\uad11 \uc18c\uc2a4<\/strong>: \ubb38\uc790\uc5f4 \ubc0f \uacb0\ud569\uae30 \ucc28\ub2e8\uae30(\uc704\uc640 \uac19\uc74c)
\uc601\uc5ed 2 - \ucda9\uc804 \ucee8\ud2b8\ub864\ub7ec \ucd9c\ub825<\/strong>: \ucee8\ud2b8\ub864\ub7ec \ucd5c\ub300 \ucd9c\ub825 \uc804\ub958\uc5d0 \uc815\uaca9 \ucc28\ub2e8\uae30
\uc601\uc5ed 3 - \ubc30\ud130\ub9ac \uc740\ud589<\/strong>: \ubc30\ud130\ub9ac \uc804\uc555 \ubc0f \ub2e8\ub77d \uc804\ub958\uc5d0 \uc815\uaca9\ud654\ub41c \uace0\uc804\ub958 DC \ucc28\ub2e8\uae30(10,000A \ucd08\uacfc \uac00\ub2a5)<\/p>\n\n\n\n

\ubc30\ud130\ub9ac \uc2dc\uc2a4\ud15c\uc740 \ub0b4\ubd80 \uc800\ud56d\uc5d0 \uc758\ud574\uc11c\ub9cc \uc81c\ud55c\ub418\ub294 \ub9c9\ub300\ud55c \uc804\ub958\ub97c \ub2e8\ub77d\uc73c\ub85c \uc804\ub2ec\ud560 \uc218 \uc788\uae30 \ub54c\ubb38\uc5d0 DC \uace0\uc7a5 \uc804\ub958 \uc704\ud5d8\uc774 \uac00\uc7a5 \ub192\uc73c\uba70, \ub530\ub77c\uc11c \uc801\uc808\ud55c DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ubcf4\ud638\ub294 \uc548\uc804\uc744 \uc704\ud574 \uc808\ub300\uc801\uc73c\ub85c \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc720\ud2f8\ub9ac\ud2f0 \uaddc\ubaa8 \ud0dc\uc591\uad11 \ubc1c\uc804\uc18c(1~100MW \uc774\uc0c1)<\/h3>\n\n\n\n

\uc720\ud2f8\ub9ac\ud2f0 \uc124\ube44\uc5d0\uc11c\ub294 \uc804\ub3d9\uc2dd \ud68c\ub85c \ucc28\ub2e8\uae30, \uc6d0\uaca9 SCADA \uc81c\uc5b4 \ubc0f \ud1b5\ud569 \uc544\ud06c \ud50c\ub798\uc2dc \uac10\uc9c0 \uae30\ub2a5\uc774 \uc788\ub294 \ud2b9\uc218 DC \uc2a4\uc704\uce58\uae30\uc5b4\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc2a4\ud2b8\ub9c1 \ucef4\ubc14\uc774\ub108\ub294 \uc911\uc559 \uc778\ubc84\ud130 \uc2a4\ud14c\uc774\uc158\uc5d0 \uc804\ub825\uc744 \uacf5\uae09\ud558\ub294 \ub9ac\ucf64\ube44\ub108 \ubc15\uc2a4\uc5d0 \uc804\ub825\uc744 \uacf5\uae09\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uac01 \ubcf4\ud638 \uacc4\uce35\uc740 \uc810\uc9c4\uc801\uc73c\ub85c \ub354 \ub192\uc740 \ub4f1\uae09\uc758 \ucc28\ub2e8\uae30\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4:
- \ubb38\uc790\uc5f4 \uc218\uc900: 20-30A
- \ucef4\ubc14\uc774\ub108 \ub808\ubca8: 250-400A
- \uc7ac\uacb0\ud569\uae30 \ub808\ubca8: 800-1200A
- \uba54\uc778 DC \ubc30\uc804\ubc18: 2000-4000A<\/p>\n\n\n\n

\uc720\ud2f8\ub9ac\ud2f0 \uaddc\ubaa8\uc5d0\uc11c DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ubcf4\ud638 \uc2dc\uc2a4\ud15c\uc740 \uc720\uc9c0\ubcf4\uc218 \uc791\uc5c5\uc5d0 \ud544\uc694\ud55c \uc801\uc808\ud55c \ub4f1\uae09\uc758 \uac1c\uc778 \ubcf4\ud638 \uc7a5\ube44\uc640 \ud568\uaed8 NFPA 70E\uc5d0 \ub530\ub978 \uc544\ud06c \ud50c\ub798\uc2dc \uc704\ud5d8 \ubd84\uc11d\uc5d0 \ub9de\ucdb0 \uc870\uc815\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\"DC<\/figure>\n\n\n\n

\ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \uc801\ud569\ud55c DC \ucc28\ub2e8\uae30\ub97c \uc120\ud0dd\ud558\ub294 \ubc29\ubc95<\/h2>\n\n\n\n

1\ub2e8\uacc4: \ud544\uc694\ud55c \uc804\uc555 \ub4f1\uae09 \uacb0\uc815<\/h3>\n\n\n\n

\ud0dc\uc591\uad11 \uc2dc\uc2a4\ud15c \uc804\uc555\uc5d0 \ub530\ub77c \ucd5c\uc18c \ucc28\ub2e8\uae30 DC \uc804\uc555 \uc815\uaca9\uc774 \uacb0\uc815\ub429\ub2c8\ub2e4. \uc815\uaca9 \uc804\uc555\ubcf4\ub2e4 \ub0ae\uc740 \uc804\uc555\uc744 \uc0ac\uc6a9\ud558\uc9c0 \ub9c8\uc138\uc694. DC \ucc28\ub2e8\uae30\ub294 \uc815\uaca9\uc744 \ucd08\uacfc\ud558\ub294 \uc804\uc555\uc744 \ucc28\ub2e8\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uacf5\uc2dd<\/strong>: \ucc28\ub2e8\uae30 VDC \uc815\uaca9 \u2265 \ucd5c\ub300 \uc2dc\uc2a4\ud15c \uac1c\ubc29 \ud68c\ub85c \uc804\uc555<\/p>\n\n\n\n

\uc608\uc2dc:<\/strong>
- \uc2a4\ud2b8\ub9c1 \uad6c\uc131: \ud328\ub110 10\uac1c \u00d7 46V Voc = 460V
- \uc628\ub3c4 \ubcf4\uc815: 460V \u00d7 1.14(\uc800\uc628 \uacc4\uc218) = 524V
- \ucd5c\uc18c \ucc28\ub2e8\uae30 \uc815\uaca9: 600V DC(524V \uc774\uc0c1\uc758 \ub2e4\uc74c \ud45c\uc900 \ud06c\uae30)<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc778 DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \uc804\uc555 \uc815\uaca9:
- 250V DC: \uc18c\ud615 12V\/24V \ubc30\ud130\ub9ac \uc2dc\uc2a4\ud15c
- 500V DC: \uad6c\ud615 \uc8fc\uac70\uc6a9 \uc2dc\uc2a4\ud15c(\ud604\uc7ac\ub294 \ub4dc\ubb3c\ub2e4)
- 600V DC: \ud45c\uc900 \uc8fc\uac70\uc6a9\/\uc0c1\uc5c5\uc6a9(\uac00\uc7a5 \uc77c\ubc18\uc801)
- 1000V DC: \uc720\ud2f8\ub9ac\ud2f0 \uaddc\ubaa8\uc758 \ucd5c\uc2e0 \uace0\uc804\uc555 \uc2dc\uc2a4\ud15c
- 1500V DC: \ub300\ud615 \uc720\ud2f8\ub9ac\ud2f0 \uc124\uce58(\ud2b9\uc218 \ucc28\ub2e8\uae30 \ud544\uc694)<\/p>\n\n\n\n

\n

\u26a0\ufe0f \uacbd\uace0<\/strong>: AC \uc804\uc555 \uc815\uaca9\uc774 DC\uc5d0 \uc801\uc6a9\ub41c\ub2e4\uace0 \uac00\uc815\ud558\uc9c0 \ub9c8\uc138\uc694. 480V AC \/ 250V DC \uc815\uaca9 \ucc28\ub2e8\uae30\ub294 480\ubcfc\ud2b8\uc758 \uad50\ub958 \uc804\ub958\ub97c \ucc98\ub9ac\ud560 \uc218 \uc788\uc9c0\ub9cc 400V \ud0dc\uc591\uad11 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uc774 \ucc28\ub2e8\uae30\ub97c \uc0ac\uc6a9\ud558\uba74 \uc624\ub958\ub97c \ucc28\ub2e8\ud558\ub824\uace0 \ud560 \ub54c \uadf9\uc2ec\ud55c \ud654\uc7ac \ubc0f \ud3ed\ubc1c \uc704\ud5d8\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/blockquote>\n\n\n\n

2\ub2e8\uacc4: \ucd5c\uc18c \uc804\ub958 \uc815\uaca9 \uacc4\uc0b0<\/h3>\n\n\n\n

NEC 690.8\uc5d0\uc11c\ub294 \ud0dc\uc591\uad11 \ud68c\ub85c \ucc28\ub2e8\uae30\uc758 \uc815\uaca9 \ub2e8\ub77d \uc804\ub958\uac00 156% \uc774\uc0c1(\uc628\ub3c4 \ubc0f \uc870\ub3c4 \ubcc0\ud654\ub97c \uace0\ub824)\uc774\uc5b4\uc57c \ud55c\ub2e4\uace0 \uaddc\uc815\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uacf5\uc2dd<\/strong>: \ucc28\ub2e8\uae30 \uc815\uaca9 \uc804\ub958 \u2265 \ubaa8\ub4c8 Isc \u00d7 1.56<\/p>\n\n\n\n

\uc608\uc2dc:<\/strong>
- \ud328\ub110 \uc0ac\uc591: Isc = 9.8A
- \ucd5c\uc18c \uc815\uaca9: 9.8A \u00d7 1.56 = 15.3A
- \uc120\ud0dd\ud55c \ucc28\ub2e8\uae30\uc785\ub2c8\ub2e4: 15A(\uc7a0\uae50, \ub108\ubb34 \uc791\uc2b5\ub2c8\ub2e4!)
- \uc2e4\uc81c \uc120\ud0dd: 20A(\ub2e4\uc74c \ud45c\uc900 \ud06c\uae30 15.3A \uc774\uc0c1)<\/p>\n\n\n\n

\ud45c\uc900 DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \uc804\ub958 \uc815\uaca9:
- \uc2a4\ud2b8\ub9c1 \ub808\ubca8: 15A, 20A, 25A, 30A
- \ucef4\ubc14\uc774\ub108 \ub808\ubca8: 63A, 80A, 100A, 125A, 150A
- \uba54\uc778 \uc5b4\ub808\uc774: 200A, 250A, 315A, 400A<\/p>\n\n\n\n

\ud328\ub110 Isc<\/th>\ucd5c\uc18c \ub4f1\uae09(\u00d7 1.56)<\/th>\ud45c\uc900 \ucc28\ub2e8\uae30 \ud06c\uae30<\/th>\uc560\ud50c\ub9ac\ucf00\uc774\uc158<\/th><\/tr><\/thead>
8.5A<\/td>13.3A<\/td>15A<\/td>\ud45c\uc900 \uc8fc\uac70\uc6a9 \ud328\ub110(300-350W)<\/td><\/tr>
9.8A<\/td>15.3A<\/td>20A<\/td>\uace0\ud6a8\uc728 \uc8fc\uac70\uc6a9(350-400W)<\/td><\/tr>
11.5A<\/td>17.9A<\/td>20A<\/td>\ud504\ub9ac\ubbf8\uc5c4 \uc8fc\uac70\uc6a9(400-450W)<\/td><\/tr>
13.2A<\/td>20.6A<\/td>25A<\/td>\uc0c1\uc5c5\uc6a9 \uc591\uba74(450-500W)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

3\ub2e8\uacc4: DC \uc815\uaca9 \ubc0f \ubaa9\ub85d \ud655\uc778<\/h3>\n\n\n\n

\ubaa8\ub4e0 \ud68c\ub85c \ucc28\ub2e8\uae30\uac00 DC \uc804\ub958\ub97c \uc548\uc804\ud558\uac8c \ucc28\ub2e8\ud560 \uc218 \uc788\ub294 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc778\uc99d\uc744 \ud655\uc778\ud558\uc138\uc694:<\/p>\n\n\n\n

\ud544\uc218 \ubaa9\ub85d:<\/strong>
- UL 1077<\/strong>: \ubcf4\uc870 \ubcf4\ud638\uae30(\ucef4\ubc14\uc774\ub108 \ubc15\uc2a4 \ub0b4 \uc2a4\ud2b8\ub9c1 \ucc28\ub2e8\uae30\uc5d0 \uc0ac\uc6a9 \uac00\ub2a5)
- UL 489<\/strong>: \ubab0\ub4dc \ucf00\uc774\uc2a4 \ud68c\ub85c \ucc28\ub2e8\uae30(\uc8fc \ucc28\ub2e8\uae30 \ubc0f \ub3c5\ub9bd\ud615 \uc124\uce58\uc5d0 \ud544\uc694)
- UL 1741<\/strong>: PV \uc2dc\uc2a4\ud15c \uc7a5\ube44(\ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uacfc\uc758 \ud638\ud658\uc131 \uc778\uc99d)<\/p>\n\n\n\n

DC \ub4f1\uae09 \ucc28\ub2e8\uae30\ub294 \ud2b9\uc218 \uc544\ud06c \uc288\ud2b8\uc640 \uc811\ucd09 \uc7ac\ub8cc\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. AC \uc804\uc6a9 \ucc28\ub2e8\uae30\ub294 DC \uc804\ub958\ub97c \ucc28\ub2e8\ud560 \ub54c \uc6a9\uc811\ub418\uc5b4 \uc601\uad6c\uc801\uc778 \ub2e8\ub77d\uc744 \uc77c\uc73c\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

4\ub2e8\uacc4: \ud658\uacbd\uc801 \uc694\uc778 \uace0\ub824<\/h3>\n\n\n\n

\ud0dc\uc591\uad11 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4\ub294 \uc5f4\uc545\ud55c \ud658\uacbd\uc5d0 \ub178\ucd9c\ub429\ub2c8\ub2e4. \uc815\uaca9 DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ubd80\ud488\uc744 \uc120\ud0dd\ud558\uc138\uc694:<\/p>\n\n\n\n

\uc628\ub3c4 \ubc94\uc704<\/strong>40\u00b0C ~ +85\u00b0C(\ud587\ubcd5\uc774 \ub0b4\ub9ac\ucb10\ub294 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4 \ub0b4\ubd80 \uc628\ub3c4\ub294 70\u00b0C\ub97c \ucd08\uacfc\ud560 \uc218 \uc788\uc74c)<\/p>\n\n\n\n

\uace0\ub3c4 \uac10\uc18d<\/strong>: \ud574\ubc1c 2000m \uc774\uc0c1\uc5d0\uc11c\ub294 \ucc28\ub2e8\uae30 \ucc28\ub2e8 \uc6a9\ub7c9 \uac10\uc18c - \uc81c\uc870\uc0ac \uac10\uc18d \uace1\uc120 \ucc38\uc870<\/p>\n\n\n\n

\ub0b4\uc2dd\uc131<\/strong>: \ud574\uc548 \uc124\uce58\uc5d0\ub294 \ubc00\ud3d0\ub41c \uc778\ud074\ub85c\uc800\uc640 \uc8fc\uc11d \ub3c4\uae08 \uad6c\ub9ac \ubc84\uc2a4 \ubc14\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc790\uc678\uc120 \uc800\ud56d<\/strong>: \uc2e4\uc678 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4\uc5d0\ub294 \uc790\uc678\uc120 \uc548\uc815\ud654 \ud3f4\ub9ac\uce74\ubcf4\ub124\uc774\ud2b8 \ub610\ub294 \uc720\ub9ac\uc12c\uc720 \uc778\ud074\ub85c\uc800\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc778 \uc2e4\uc218 \ubc0f \uaddc\uc815 \uc704\ubc18<\/h2>\n\n\n\n

\u274c DC \ud0dc\uc591\uad11 \ud68c\ub85c\uc5d0\uc11c AC \ucc28\ub2e8\uae30 \uc0ac\uc6a9<\/h3>\n\n\n\n

\ubb38\uc81c\uc785\ub2c8\ub2e4:<\/strong> AC \ud68c\ub85c \ucc28\ub2e8\uae30\ub294 DC \uc804\ub958\ub97c \ucc28\ub2e8\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc9c0 \uc54a\uc558\uc2b5\ub2c8\ub2e4. DC\ub294 \uc81c\ub85c \ud06c\ub85c\uc2f1 \ud3ec\uc778\ud2b8\uac00 \uc5c6\ub294 \uc5f0\uc18d \uc544\ud06c\ub97c \uc0dd\uc131\ud558\uba70, AC \uc815\uaca9 \uc544\ud06c \uc288\ud2b8\ub294 DC \uc544\ud06c\ub97c \uc548\uc815\uc801\uc73c\ub85c \uc18c\ud654\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc778 \uc2dc\ub098\ub9ac\uc624:<\/strong>
- \u201c\ud328\ub110\uc5d0\uc11c \uc5ec\ubd84\uc758 20A \ucc28\ub2e8\uae30\ub97c \ubc1c\uacac\ud588\ub294\ub370 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4\uc5d0\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub098\uc694?\u201d
- \u201cAC \ucc28\ub2e8\uae30\uc758 \uc815\uaca9\uc740 480V\uc778\ub370 \ub0b4 \ud0dc\uc591\uad11 \uc2dc\uc2a4\ud15c\uc740 400V DC\uc5d0 \ubd88\uacfc\ud569\ub2c8\ub2e4.\u201d
- \uc2e4\uc678 \ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \uc8fc\uac70\uc6a9 AC \ud328\ub110 \ucc28\ub2e8\uae30 \uc124\uce58<\/p>\n\n\n\n

\uc218\uc815:<\/strong> DC \uc804\uc555 \ubc0f \uc804\ub958 \uc815\uaca9\uc774 \uba85\uc2dc\uc801\uc73c\ub85c \ud45c\uc2dc\ub41c \ud68c\ub85c \ucc28\ub2e8\uae30\ub9cc \uc0ac\uc6a9\ud558\uc138\uc694. \u201c600V DC\u201d\uc640 \uac19\uc740 \ud45c\uc2dc \ub610\ub294 \u201c240V AC \/ 125V DC\u201d\uc640 \uac19\uc740 \uc774\uc911 \uc815\uaca9\uc774 \uc788\ub294\uc9c0 \ud655\uc778\ud558\uc138\uc694.\u201d<\/p>\n\n\n\n

\n

\u26a0\ufe0f \uacbd\uace0<\/strong>: DC \ud68c\ub85c\uc5d0 AC \ucc28\ub2e8\uae30\ub97c \uc124\uce58\ud558\ub294 \uac83\uc740 NEC 110.3(B)\ub97c \uc704\ubc18\ud558\ub294 \uac83\uc774\uba70 \ubaa8\ub4e0 \uc804\uae30 \uc778\uc99d\uc774 \ubb34\ud6a8\ud654\ub429\ub2c8\ub2e4. \ubcf4\ud5d8 \ud68c\uc0ac\ub294 \ub4f1\uc7ac\ub418\uc9c0 \uc54a\uc740 \uc7a5\ube44 \uc0ac\uc6a9\uc73c\ub85c \uc778\ud55c \ud654\uc7ac \ud53c\ud574\uc5d0 \ub300\ud55c \ubcf4\ud5d8\uae08 \uccad\uad6c\ub97c \uac70\ubd80\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/blockquote>\n\n\n\n

\uba54\uc778 \ucef4\ubc14\uc774\ub108 \ucc28\ub2e8\uae30 \ud06c\uae30 \uc904\uc774\uae30<\/h3>\n\n\n\n

\ubb38\uc81c\uc785\ub2c8\ub2e4:<\/strong> \uc124\uacc4\uc790\ub294 125% \uc548\uc804 \uacc4\uc218\ub97c \uc801\uc6a9\ud558\uc9c0 \uc54a\uace0 \uc2a4\ud2b8\ub9c1 \uc804\ub958\ub97c \uae30\uc900\uc73c\ub85c \uc8fc \ucc28\ub2e8\uae30 \ud06c\uae30\ub97c \uacc4\uc0b0\ud558\uae30 \ub54c\ubb38\uc5d0 \ud328\ub110\uc774 \uc815\uaca9 Isc\ub97c \ucd08\uacfc\ud558\ub294 \ucda5\uace0 \ub9d1\uc740 \uc544\uce68\uc5d0\ub294 \ud2b8\ub9bd\uc774 \ubc1c\uc0dd\ud558\uc5ec \ubd88\ud3b8\uc744 \ucd08\ub798\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc778 \uc2dc\ub098\ub9ac\uc624:<\/strong>
- 8 \uc2a4\ud2b8\ub9c1 \u00d7 10A \uacf5\uce6d = 80A \u2192 \uc124\uce58\uc790\uac00 80A \ucc28\ub2e8\uae30\ub97c \uc120\ud0dd\ud568(\uc798\ubabb\ub428!)
- \uc628\ub3c4 \uacc4\uc218\ub97c \uc78a\uc5b4\ubc84\ub9ac\uba74 \uc800\uc628\uc5d0\uc11c Voc \ubc0f Isc\uac00 \uc99d\uac00\ud569\ub2c8\ub2e4.
- \uc0ac\uc774\uc9d5\uc744 \uc704\ud574 \uc2e4\uc81c \uc2a4\ud2b8\ub9c1 \uc804\ub958 \ub300\uc2e0 \uc778\ubc84\ud130 MPPT \ub4f1\uae09 \uc0ac\uc6a9<\/p>\n\n\n\n

\uc218\uc815:<\/strong> \uc8fc \ucc28\ub2e8\uae30\ub294 \uc2a4\ud2b8\ub9c1 \ucc28\ub2e8\uae30 \uc815\uaca9\uc758 \ud569\uc774 \ucd5c\uc18c 125% \uc774\uc0c1\uc774\uc5b4\uc57c \ud569\ub2c8\ub2e4:
- 8 \uc2a4\ud2b8\ub9c1 \u00d7 15A \uc2a4\ud2b8\ub9c1 \ucc28\ub2e8\uae30 \u00d7 1.25 = 150A \ucd5c\uc18c \uc8fc \ucc28\ub2e8\uae30<\/p>\n\n\n\n

\uc774\uac83\uc774 \uc911\uc694\ud55c \uc774\uc720:<\/strong> 1\uc6d4\uc758 \ucd94\uc6b4 \uc544\uce68, \uc870\ub3c4\uac00 1200W\/m\u00b2\uc77c \ub54c \ud328\ub110 \uc804\ub958\ub294 110%\uc758 \uc815\uaca9 Isc\uc5d0 \ub3c4\ub2ec\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. 80A \ucc28\ub2e8\uae30\ub294 100A(\uc815\uaca9 125%)\uc5d0\uc11c \ud2b8\ub9bd\ub418\uc5b4 \ud53c\ud06c \uc0dd\uc0b0 \uc911\uc5d0 \uc2dc\uc2a4\ud15c\uc744 \uc885\ub8cc\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ubcd1\ub82c \uc5f0\uacb0 \uc9c0\uc810 \ub4a4\uc5d0 \ubb38\uc790\uc5f4 \ucc28\ub2e8\uae30 \uc124\uce58\ud558\uae30<\/h3>\n\n\n\n

\ubb38\uc81c\uc785\ub2c8\ub2e4:<\/strong> \ubaa8\ub4e0 \uc2a4\ud2b8\ub9c1 \ub3c4\uccb4\ub97c \uacf5\ud1b5 \ubc84\uc2a4 \ubc14\uc5d0 \uc5f0\uacb0\ud55c \ub2e4\uc74c \uacb0\ud569\ub41c \ucd9c\ub825\uc5d0 \ucc28\ub2e8\uae30\ub97c \uc124\uce58\ud569\ub2c8\ub2e4. \uc774\ub807\uac8c \ud558\uba74 \uc2a4\ud2b8\ub9c1 \uac04 \uc5ed\uc804\ub958\uc5d0 \ub300\ud55c \ubcf4\ud638\uac00 \uc804\ud600 \uc774\ub8e8\uc5b4\uc9c0\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc778 \uc2dc\ub098\ub9ac\uc624:<\/strong>
- \uc0c1\ub2e8\uc5d0 \ubc84\uc2a4 \ubc14, \ucd9c\ub825 \uce21\uc5d0 \ucc28\ub2e8\uae30\uac00 \uc788\ub294 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4
- \ubcf4\ud638 \uc7a5\uce58 \uc804\uc5d0 \ub3d9\uc77c\ud55c \ud130\ubbf8\ub110 \ub7ec\uadf8\uc5d0 \uc5ec\ub7ec \uac1c\uc758 \uc2a4\ud2b8\ub9c1\uc774 \ucc29\ub959\ud558\ub294 \uacbd\uc6b0
- \uc911\uc559 \ubc84\uc2a4 \ubc0f \ucd9c\ub825 \ucc28\ub2e8\uae30\ub9cc \uc788\ub294 \u201c\ud5c8\ube0c\u201d \uc2a4\ud0c0\uc77c \ucef4\ubc14\uc774\ub108<\/p>\n\n\n\n

\uc218\uc815:<\/strong> \uac01 \uc2a4\ud2b8\ub9c1 \ub3c4\uccb4\ub294 \ub2e4\ub978 \uc2a4\ud2b8\ub9c1\uacfc \ubcd1\ub82c \uc5f0\uacb0\ud558\uae30 \uc804\uc5d0 \uc790\uccb4 \uc804\uc6a9 \ucc28\ub2e8\uae30\ub97c \ud1b5\uacfc\ud574\uc57c \ud569\ub2c8\ub2e4. \ucc28\ub2e8\uae30\ub294 \u201c\ubc84\uc2a4 \ubc14\uc640 \uc778\ubc84\ud130 \uc0ac\uc774\u201d\uac00 \uc544\ub2c8\ub77c \u201c\uc2a4\ud2b8\ub9c1\uacfc \ubc84\uc2a4 \ubc14 \uc0ac\uc774\u201d\uc5d0 \uc788\uc5b4\uc57c \ud569\ub2c8\ub2e4.\u201d<\/p>\n\n\n\n

\u274c \ucc28\ub2e8\uae30 \uadf9 \uc81c\ud55c \ucd08\uacfc<\/h3>\n\n\n\n

\ubb38\uc81c\uc785\ub2c8\ub2e4:<\/strong> \ub3d9\uc2dc \ucc28\ub2e8\uc744 \uc704\ud55c \uc801\uc808\ud55c \uad6c\uc131 \uc5c6\uc774 \uc811\uc9c0\ub41c \ud0dc\uc591\uad11 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ub2e8\uadf9 \ub610\ub294 2\uadf9 DC \ucc28\ub2e8\uae30\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc778 \uc2dc\ub098\ub9ac\uc624:<\/strong>
- \uc811\uc9c0\ub41c \uc591\uadf9 \ub3c4\uccb4 \uc804\uc6a9 \ub2e8\uadf9 \ucc28\ub2e8\uae30
- \uacf5\ud1b5 \ud2b8\ub9bd 2\uadf9 \uc7a5\uce58 \ub300\uc2e0 \ub450 \uac1c\uc758 \uac1c\ubcc4 \ub2e8\uadf9 \ucc28\ub2e8\uae30
- \uc77c\ubc18 \uc5ec\ud589 \ub4f1\uae09\uc774 \uc544\ub2cc \uc8fc\uac70\uc6a9 \ud0e0\ub364 \uc0ac\uc6a9<\/p>\n\n\n\n

\uc218\uc815:<\/strong> NEC 690.13(C)\uc5d0 \ub530\ub77c \uc811\uc9c0\ub41c DC \uc2dc\uc2a4\ud15c\uc5d0\uc11c\ub294 \ubaa8\ub4e0 \ube44\uc811\uc9c0 \ub3c4\uccb4\ub97c \ub3d9\uc2dc\uc5d0 \ubd84\ub9ac\ud574\uc57c \ud569\ub2c8\ub2e4. \uc0ac\uc6a9:
- \uc811\uc9c0\ub41c \uc911\uc559 \ud0ed\uc774 \uc788\ub294 \uc2dc\uc2a4\ud15c\uc6a9 2\uadf9 \uacf5\ud1b5 \ud2b8\ub9bd \ucc28\ub2e8\uae30
- \uc811\uc9c0 \uc911\uc131\uc120\uc774 \uc788\ub294 \uc591\uadf9 \uc2dc\uc2a4\ud15c\uc6a9 4\uadf9 \ucc28\ub2e8\uae30<\/p>\n\n\n\n

\ucf54\ub4dc \ucc38\uc870:<\/strong> \ucc28\ub2e8\uae30 \uc190\uc7a1\uc774\ub294 \ubaa8\ub4e0 \uadf9\uc744 \uae30\uacc4\uc801\uc73c\ub85c \uc5f0\uacb0\ud558\uc5ec \ud55c \uadf9\uc744 \uc5f4\uba74 \ubaa8\ub4e0 \uadf9\uc774 \ub3d9\uc2dc\uc5d0 \uc5f4\ub9ac\ub3c4\ub85d \ud574\uc57c \uc591\uadf9\uacfc \uc74c\uadf9 \ub3c4\uccb4\uac00 \ud568\uaed8 \ubd84\ub9ac\ub418\uc5b4 \uc720\uc9c0\ubcf4\uc218 \uc911 \ucda9\uaca9 \uc704\ud5d8\uc744 \ubc29\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc544\ud06c \uc624\ub958 \ubcf4\ud638 \uc694\uad6c \uc0ac\ud56d \ubb34\uc2dc<\/h3>\n\n\n\n

\ubb38\uc81c\uc785\ub2c8\ub2e4:<\/strong> 2011\ub144 \uc774\ud6c4\uc5d0 \uc124\uce58\ub41c \uc9c0\ubd95 \uc7a5\ucc29\ud615 \uc2dc\uc2a4\ud15c\uc5d0\ub294 \uc544\ud06c \uc624\ub958 \uac10\uc9c0 \uae30\ub2a5\uc774 \uc5c6\ub294 \uc5f4 \uc790\uae30 \ucc28\ub2e8\uae30\ub9cc \uc124\uce58\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc778 \uc2dc\ub098\ub9ac\uc624:<\/strong>
- \uad6c\ud615 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4\ub97c \uc0ac\uc6a9\ud55c \uac1c\uc870 \uc124\uce58
- \ube44\uc6a9 \uc808\uac10\uc744 \uc704\ud574 AFCI\ub97c \uc0dd\ub7b5\ud55c \uc608\uc0b0 \uc2dc\uc2a4\ud15c
- NEC 690.11 \uc694\uad6c \uc0ac\ud56d\uc744 \ubaa8\ub974\ub294 \uc124\uce58\uc790<\/p>\n\n\n\n

\uc218\uc815:<\/strong> NEC 690.11\uc5d0\uc11c\ub294 \uc8fc\ud0dd \uc9c0\ubd95\uc758 \ud0dc\uc591\uad11 \uc2dc\uc2a4\ud15c\uc5d0 DC \uc544\ud06c \uc624\ub958 \ubcf4\ud638 \uae30\ub2a5\uc774 \uc788\uc5b4\uc57c \ud55c\ub2e4\uace0 \uaddc\uc815\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud569\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:
- AFCI\uac00 \ub0b4\uc7a5\ub41c DC \ucc28\ub2e8\uae30(UL 1699B\uc5d0 \ub4f1\uc7ac)
- AFCI \ubaa8\ub2c8\ud130\ub9c1 \ubaa8\ub4c8\uc774 \uc788\ub294 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4
- DC AFCI \uae30\ub2a5\uc774 \ub0b4\uc7a5\ub41c \uc778\ubc84\ud130<\/p>\n\n\n\n

\ucf54\ub4dc\uc5d0 \uc774 \uae30\ub2a5\uc774 \ud544\uc694\ud55c \uc774\uc720<\/strong> \ud604\uc7a5 \ub370\uc774\ud130\uc5d0 \ub530\ub974\uba74 50%\uc758 \ud0dc\uc591\uad11 \uc2dc\uc2a4\ud15c \ud654\uc7ac\ub294 \uc190\uc0c1\ub41c \ub3c4\uccb4 \ub610\ub294 \ub290\uc2a8\ud55c \uc5f0\uacb0\ub85c \uc778\ud55c DC \uc544\ud06c\uc640 \uad00\ub828\uc774 \uc788\uc73c\uba70, NREL \ud604\uc7a5 \uc5f0\uad6c\uc5d0 \ub530\ub974\uba74 FCI \ubcf4\ud638\ub294 \ud654\uc7ac \uc704\ud5d8\uc744 87%\uae4c\uc9c0 \uc904\uc5ec\uc90d\ub2c8\ub2e4.<\/p>\n\n\n\n

\ucc28\ub2e8\uae30 \ub2e8\uc790 \uc5f0\uacb0\ubd80\uc758 \ubd80\uc801\uc808\ud55c \ud1a0\ud06c<\/h3>\n\n\n\n

\ubb38\uc81c\uc785\ub2c8\ub2e4:<\/strong> \uc801\uc808\ud55c \ud1a0\ud06c \uc0ac\uc591 \uc5c6\uc774 DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ub2e8\uc790\uc5d0 \uc5f0\uacb0\ub41c \uc2a4\ud2b8\ub9c1 \ubc0f \ucef4\ubc14\uc774\ub108 \ub3c4\uccb4\ub294 \uace0\uc800\ud56d \uc5f0\uacb0, \uacfc\uc5f4 \ubc0f \ucd5c\uc885 \uace0\uc7a5\uc73c\ub85c \uc774\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc778 \uc2dc\ub098\ub9ac\uc624:<\/strong>
- \ud130\ubbf8\ub110 \ub098\uc0ac\ub97c \u201c\uaf49 \uc870\uc77c \ub54c\uae4c\uc9c0\u201d \uc190\uc73c\ub85c \uc870\uc774\uae30\u201d
- \ubcf4\uc815\ub41c \ud1a0\ud06c \ub4dc\ub77c\uc774\ubc84 \ub300\uc2e0 \uc784\ud329\ud2b8 \ub4dc\ub77c\uc774\ubc84 \uc0ac\uc6a9
- \uc0b0\ud654 \ubc29\uc9c0\uc81c \uc5c6\uc774 \uc124\uce58\ub41c \uc54c\ub8e8\ubbf8\ub284 \ub3c4\uccb4<\/p>\n\n\n\n

\uc218\uc815:<\/strong> \uc81c\uc870\uc5c5\uccb4\uc758 \ud1a0\ud06c \uc0ac\uc591\uc744 \uc815\ud655\ud788 \ub530\ub974\uc138\uc694:
- \uc77c\ubc18\uc801\uc778 DC \ucc28\ub2e8\uae30 \ub2e8\uc790: #10-#12 AWG\uc758 \uacbd\uc6b0 35-50in-lbs
- \ucef4\ubc14\uc774\ub108 \ubc84\uc2a4 \ubc14: #6-#4 AWG\uc758 \uacbd\uc6b0 100-150 \uc778\uce58-\ud30c\uc6b4\ub4dc
- \ubcf4\uc815\ub41c \ud1a0\ud06c \ub4dc\ub77c\uc774\ubc84 \ub610\ub294 \ud1a0\ud06c \ub80c\uce58 \uc0ac\uc6a9
- \uc54c\ub8e8\ubbf8\ub284 \uc804\ub3c4\uccb4\uc5d0 \uc0b0\ud654 \ubc29\uc9c0\uc81c(NOALOX) \ub3c4\ud3ec<\/p>\n\n\n\n

\ud604\uc7a5 \uacb0\uacfc:<\/strong> \ub290\uc2a8\ud55c \uc5f0\uacb0\uc740 \uc800\ud56d \u2192 \uc5f4 \u2192 \uc0b0\ud654 \u2192 \ub354 \ub9ce\uc740 \uc800\ud56d \u2192 \ub354 \ub9ce\uc740 \uc5f4 \u2192 \uc5f4 \ud3ed\uc8fc\ub85c \uc774\uc5b4\uc838 \ub2e8\uc790 \uace0\uc7a5, \uc544\ud06c \ubc0f \uc7a0\uc7ac\uc801 \ud654\uc7ac\ub97c \uc720\ubc1c\ud569\ub2c8\ub2e4. NEC\ub294 \uc5f0\uac04 \uc720\uc9c0\ubcf4\uc218 \uc2dc \ub2e8\uc790\ub97c \ub2e4\uc2dc \uc870\uc77c \uc218 \uc788\ub3c4\ub85d \ub2e8\uc790\uc5d0 \uc815\ud655\ud558\uac8c \uc811\uadfc\ud560 \uac83\uc744 \uc694\uad6c\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\"\ud0dc\uc591\uad11<\/figure>\n\n\n\n
\"DC<\/figure>\n\n\n\n

\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n\n\n\n

\ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc6a9 DC \ucc28\ub2e8\uae30\uc640 AC \ucc28\ub2e8\uae30\uc758 \ucc28\uc774\uc810\uc740 \ubb34\uc5c7\uc778\uac00\uc694?<\/h3>\n\n\n\n

DC \ucc28\ub2e8\uae30\ub294 \uad50\ub958 \uc804\ub958\uac00 \uc0ac\uc774\ud074\ub2f9 \ub450 \ubc88 \uc788\ub294 \uc790\uc5f0\uc801\uc778 \uc81c\ub85c \ud06c\ub85c\uc2f1 \ud3ec\uc778\ud2b8\uac00 \uc5c6\ub294 \uc9c1\ub958\ub97c \ucc28\ub2e8\ud558\ub3c4\ub85d \uc124\uacc4\ub41c \ud2b9\uc218 \uc544\ud06c \uc18c\uba78 \ucc54\ubc84\uc640 \uc811\ucd09 \uc7ac\ub8cc\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. AC \ucc28\ub2e8\uae30\uac00 \ubd80\ud558 \uc0c1\ud0dc\uc5d0\uc11c \uc5f4\ub9ac\uba74 \uad50\ub958 \uc804\ub958\uac00 \ucd08\ub2f9 120\ud68c(60Hz \uae30\uc900) \uc790\uc5f0\uc801\uc73c\ub85c \ud750\ub984\uc744 \uba48\ucd94\uae30 \ub54c\ubb38\uc5d0 \uc544\ud06c\ub97c \uc27d\uac8c \uc18c\uba78\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc9c1\ub958 \uc804\ub958\ub294 \ud55c \ubc29\ud5a5\uc73c\ub85c \uc9c0\uc18d\uc801\uc73c\ub85c \ud750\ub974\uae30 \ub54c\ubb38\uc5d0 \uc811\uc810\uc744 \uc11c\ub85c \uc6a9\uc811\ud558\uac70\ub098 \uc774\uc628\ud654\ub41c \uacf5\uae30\ub97c \ud1b5\ud574 \uacc4\uc18d \uc804\ub3c4\ud560 \uc218 \uc788\ub294 \uc9c0\uc18d\uc801\uc778 \uc544\ud06c\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc6a9 DC \uc815\uaca9 \ucc28\ub2e8\uae30\ub294 \uc544\ud06c\ub97c \uae34 \uacbd\ub85c\ub85c \uac15\uc81c \uc774\ub3d9\uc2dc\ud0a4\ub294 \uc790\uae30 \uc544\ud06c \uc288\ud2b8, \uc2e0\uc18d\ud55c \uc811\ucd09 \ubd84\ub9ac \uba54\ucee4\ub2c8\uc998 \ubc0f \ud2b9\uc218 \uc544\ud06c \uc800\ud56d\uc131 \uc811\ucd09 \uc7ac\ub8cc\ub97c \ud1b5\ud569\ud569\ub2c8\ub2e4. \ub610\ud55c PV \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ud754\ud788 \ubc1c\uc0dd\ud558\ub294 \uace0\uc804\uc555(400~1000V)\uc744 \ucc98\ub9ac\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc5b4 \uc0c1\ub2f9\ud55c \uc5d0\uc5b4 \uac2d\uc744 \ub6f0\uc5b4\ub118\ub294 \uc544\ud06c\ub97c \uc0dd\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. 20A\/240V AC \uac00\uc815\uc6a9 \ucc28\ub2e8\uae30\ub294 \uc815\uaca9 DC\uac00 48V\uc5d0 \ubd88\uacfc\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c 400V \ud0dc\uc591\uad11 \uc2a4\ud2b8\ub9c1\uc5d0 \uc0ac\uc6a9\ud558\uba74 \ucc28\ub2e8\uae30\uac00 \uc624\ub958\ub97c \ucc28\ub2e8\ud558\uc9c0 \ubabb\ud574 \ud654\uc7ac\ub098 \uc7a5\ube44 \ud30c\uc190\uc744 \ucd08\ub798\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud0dc\uc591\uad11 \uc2a4\ud2b8\ub9c1\uc5d0 \ub9de\ub294 \uc62c\ubc14\ub978 \ud06c\uae30\uc758 DC \ucc28\ub2e8\uae30\ub97c \uacc4\uc0b0\ud558\ub824\uba74 \uc5b4\ub5bb\uac8c \ud574\uc57c \ud558\ub098\uc694?<\/h3>\n\n\n\n

\uc81c\uc870\uc5c5\uccb4\uc758 \ub370\uc774\ud130\uc2dc\ud2b8\uc5d0\uc11c \ud328\ub110\uc758 \ub2e8\ub77d \uc804\ub958(Isc)\ub85c \uc2dc\uc791\ud558\uc138\uc694. \uc774 \uac12\uc5d0 NEC 690.8(A)(1)\uc5d0 \ub530\ub77c 1.56\uc744 \uacf1\ud558\uc5ec \uc870\ub3c4 \uc99d\uac00 \ubc0f \uc800\uc628 \uc870\uac74\uc744 \uace0\ub824\ud569\ub2c8\ub2e4. \ub2e4\uc74c \ud45c\uc900 \ucc28\ub2e8\uae30 \ud06c\uae30\ub85c \ubc18\uc62c\ub9bc\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc608\ub97c \ub4e4\uc5b4, \ud328\ub110\uc758 \uc815\uaca9\uc774 9.8A Isc\uc778 \uacbd\uc6b0 9.8A \u00d7 1.56 = \ucd5c\uc18c 15.3A\uc785\ub2c8\ub2e4. 15.3A\ub97c \ucd08\uacfc\ud558\ub294 \ub2e4\uc74c \ud45c\uc900 \ud06c\uae30\ub294 20A\uc774\ubbc0\ub85c 20A DC \ucc28\ub2e8\uae30\ub97c \uc120\ud0dd\ud558\uba74 \ub429\ub2c8\ub2e4. 15A \ucc28\ub2e8\uae30\ub294 \ud06c\uae30\uac00 \uc791\uc544 \uc2e4\uc81c \uc804\ub958\uac00 \uc815\uaca9 Isc\ub97c \ucd08\uacfc\ud558\ub294 \ucd94\uc6b4 \uc544\uce68 \ud53c\ud06c \uc0dd\uc0b0 \uc911\uc5d0 \ud2b8\ub9bd\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c \uc808\ub300\ub85c \ubc18\uc62c\ub9bc\ud558\uc9c0 \ub9c8\uc138\uc694.<\/p>\n\n\n\n

\uc5ec\ub7ec \uac1c\uc758 \uc2a4\ud2b8\ub9c1\uc744 \ubcf4\ud638\ud558\ub294 \uba54\uc778 \ucef4\ubc14\uc774\ub108 \ucc28\ub2e8\uae30\uc758 \uacbd\uc6b0 \ubaa8\ub4e0 \uc2a4\ud2b8\ub9c1 \ucc28\ub2e8\uae30 \uc815\uaca9\uc744 \ud569\uc0b0\ud558\uace0 1.25\ub97c \uacf1\ud569\ub2c8\ub2e4. 20A \uc2a4\ud2b8\ub9c1 \ucc28\ub2e8\uae30\uac00 8\uac1c\uc778 \uacbd\uc6b0: 8 \u00d7 20A = 160A, 160A \u00d7 1.25 = 200A \ucd5c\uc18c \uc8fc \ucc28\ub2e8\uae30 \uc815\uaca9.<\/p>\n\n\n\n

Does NEC<\/a> \ubaa8\ub4e0 \ud0dc\uc591\uad11 \uc2a4\ud2b8\ub9c1\uc5d0 DC \ucc28\ub2e8\uae30\uac00 \ud544\uc694\ud569\ub2c8\uae4c, \uc544\ub2c8\uba74 \uacb0\ud569\ub41c \ucd9c\ub825\ub9cc \ud544\uc694\ud569\ub2c8\uae4c?<\/h3>\n\n\n\n

NEC 690.9(A)\ub294 \ub450 \uac1c \uc774\uc0c1\uc758 \uc18c\uc2a4\uc5d0\uc11c \uc624\ub958\uc5d0 \uc804\ub958\ub97c \uacf5\uae09\ud560 \uc218 \uc788\ub294 \ubaa8\ub4e0 PV \uc18c\uc2a4 \ud68c\ub85c\uc5d0 \uacfc\uc804\ub958 \ubcf4\ud638 \uae30\ub2a5\uc744 \uc694\uad6c\ud569\ub2c8\ub2e4. \uc2e4\uc9c8\uc801\uc73c\ub85c \uc774\ub294 \ub2e4\uc911 \uc2a4\ud2b8\ub9c1 \uc5b4\ub808\uc774\uc758 \ubaa8\ub4e0 \uc2a4\ud2b8\ub9c1\uc5d0 \uc790\uccb4 \ucc28\ub2e8\uae30\uac00 \ud544\uc694\ud558\ub2e4\ub294 \uac83\uc744 \uc758\ubbf8\ud558\ub294\ub370, \uc774\ub294 \uc815\uc0c1 \uc2a4\ud2b8\ub9c1\uc774 \uacb0\ud568\uc774 \uc788\ub294 \uc2a4\ud2b8\ub9c1\uc73c\ub85c \uc804\ub958\ub97c \uc5ed\uacf5\uae09\ud560 \uc218 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc2a4\ud2b8\ub9c1\uc774 2~3\uac1c\uc5d0 \ubd88\uacfc\ud558\uace0 \ucd1d \uc2dc\uc2a4\ud15c \uc804\uc555\uc774 48V \ubbf8\ub9cc\uc778 \uc5b4\ub808\uc774\uc758 \uacbd\uc6b0 \uba54\uc778 \ucef4\ubc14\uc774\ub108 \ucc28\ub2e8\uae30 \ud558\ub098\ub9cc\uc73c\ub85c \uaddc\uc815\uc744 \ucda9\uc871\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ubcd1\ub82c \uc2a4\ud2b8\ub9c1\uc774 4\uac1c \uc774\uc0c1\uc778 300V \uc774\uc0c1\uc758 \uc8fc\uac70\uc6a9 \uc2dc\uc2a4\ud15c\uc758 \uacbd\uc6b0, \ubaa8\ubc94 \uc0ac\ub840 \ubc0f \ub300\ubd80\ubd84\uc758 \uad00\ud560 \uad6c\uc5ed\uc5d0\uc11c\ub294 \uc2a4\ud2b8\ub9c1 \ub808\ubca8 \ucc28\ub2e8\uae30(\uc2a4\ud2b8\ub9c1\ub2f9 \ud558\ub098)\uc640 \uacb0\ud569 \ucd9c\ub825\uc744 \ubcf4\ud638\ud558\ub294 \uc8fc \ucef4\ubc14\uc774\ub108 \ucc28\ub2e8\uae30\ub97c \ubaa8\ub450 \uc0ac\uc6a9\ud558\ub3c4\ub85d \uaddc\uc815\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \uc548\uc804, \uc720\uc9c0\ubcf4\uc218 \uc561\uc138\uc2a4 \ubc0f \uaddc\uc815 \uc900\uc218\ub97c \ubcf4\uc7a5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc5ed\uc804\ub958\uac00 \ud750\ub97c \uc218 \uc788\ub294 \ubcd1\ub82c \uc5f0\uacb0 \uc9c0\uc810\uc774 \uc5c6\uae30 \ub54c\ubb38\uc5d0 \ub2e8\uc77c MPPT \uc785\ub825\uc5d0 \uacf5\uae09\ud558\ub294 \uc18c\uaddc\ubaa8 \uc2dc\uc2a4\ud15c(1-2\uac1c \uc2a4\ud2b8\ub9c1)\uc740 \uc8fc \ucc28\ub2e8\uae30\ub9cc \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc124\uacc4\ub97c \ub9c8\ubb34\ub9ac\ud558\uae30 \uc804\uc5d0 \ud56d\uc0c1 \ud604\uc9c0 \uaddc\uc815 \ud574\uc11d\uc744 \uad00\ud560 \ub2f9\uad6d(AHJ)\uc5d0 \ud655\uc778\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud0dc\uc591\uad11 \uacb0\ud569\uae30 \uc0c1\uc790\uc5d0 \ud45c\uc900 \uac00\uc815\uc6a9 \ud328\ub110 \ucc28\ub2e8\uae30\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub098\uc694?<\/h3>\n\n\n\n

\ube44\uc8fc\uac70\uc6a9 \ud328\ub110 \ucc28\ub2e8\uae30\ub294 120V\/240V \ubd84\ud560 \uc0c1 \uc2dc\uc2a4\ud15c\uc758 AC \ud68c\ub85c\uc6a9\uc73c\ub85c \uc124\uacc4\ub418\uc5c8\uc73c\uba70 DC \uc804\uc555 \ub610\ub294 PV \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\ub294 \uc815\uaca9\uc774 \uc9c0\uc815\ub418\uc9c0 \uc54a\uc558\uc2b5\ub2c8\ub2e4. \ucc28\ub2e8\uae30\uc758 AC \uc804\uc555 \uc815\uaca9(\uc608: 480V AC)\uc774 \uc801\uc808\ud574 \ubcf4\uc774\ub354\ub77c\ub3c4 DC \uc815\uaca9\uc740 125V DC\uc5d0 \ubd88\uacfc\ud558\uac70\ub098 \uc544\uc608 DC \uc815\uaca9\uc774 \uc5c6\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud0dc\uc591\uad11 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4\uc5d0\ub294 \uc2dc\uc2a4\ud15c\uc758 \ucd5c\ub300 \uac1c\ubc29 \ud68c\ub85c \uc804\uc555(\uc77c\ubc18\uc801\uc73c\ub85c \uc8fc\uac70\uc6a9 \uc2dc\uc2a4\ud15c\uc758 \uacbd\uc6b0 600V DC)\uc5d0\uc11c DC \uc804\uc555\uc6a9\uc73c\ub85c \ud2b9\ubcc4\ud788 \ub4f1\uc7ac\ub418\uace0 UL 1077 \ub610\ub294 UL 489\uc5d0 \ub530\ub77c PV \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc6a9\uc73c\ub85c \uc778\uc99d\ub41c \ud68c\ub85c \ucc28\ub2e8\uae30\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ucc28\ub2e8\uae30\ub294 DC \uc804\ub958\ub97c \uc548\uc804\ud558\uac8c \ucc28\ub2e8\ud558\ub3c4\ub85d \uc124\uacc4\ub41c \ub2e4\uc591\ud55c \ub0b4\ubd80 \uc544\ud06c \uc288\ud2b8, \uc811\ucd09 \uc7ac\ub8cc \ubc0f \ucc28\ub2e8 \uba54\ucee4\ub2c8\uc998\uc744 \uac16\ucd94\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub610\ud55c \uac00\uc815\uc6a9 \ucc28\ub2e8\uae30\ub294 \uae30\ud6c4\uac00 \uc81c\uc5b4\ub418\ub294 \uc2e4\ub0b4 \uc124\uce58\uc6a9\uc73c\ub85c \uc124\uacc4\ub41c \ubc18\uba74, \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4\ub294 \uadf9\ud55c\uc758 \uc2e4\uc678\uc5d0 \uc124\uce58\ub418\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4\uc758 \ud658\uacbd \uc870\uac74(\uc628\ub3c4 \ubc94\uc704, \uc790\uc678\uc120 \ub178\ucd9c, \ub0b4\uc2dd\uc131)\uc5d0 \ub9de\ub294 \ub4f1\uae09\uc758 \ucc28\ub2e8\uae30\ub9cc \uc0ac\uc6a9\ud558\uc138\uc694. \ub4f1\uc7ac\ub418\uc9c0 \uc54a\uc740 \uc7a5\ube44\ub97c \uc124\uce58\ud558\ub294 \uac83\uc740 NEC 110.3(B)\ub97c \uc704\ubc18\ud558\ub294 \uac83\uc774\uba70 \uc911\ub300\ud55c \ucc45\uc784 \ubc0f \uc548\uc804 \ubb38\uc81c\ub97c \uc57c\uae30\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud654\ucc3d\ud55c \uc544\uce68\uc5d0 \ud0dc\uc591\uacc4 \ucc28\ub2e8\uae30\uac00 \uc791\ub3d9\ud55c \uc774\uc720\ub294 \ubb34\uc5c7\uc778\uac00\uc694?<\/h3>\n\n\n\n

DC \ucc28\ub2e8\uae30\ub294 \ub0ae\uc740 \ubaa8\ub4c8 \uc628\ub3c4\uc640 \ub192\uc740 \uc870\ub3c4 \uc870\uac74\uc73c\ub85c \uc778\ud574 \uc2e4\uc81c \ud328\ub110 \uc804\ub958\uac00 \uc608\uc0c1 \uac12\uc744 \ucd08\uacfc\ud558\ub294 \ud53c\ud06c \uc0dd\uc0b0 \uae30\uac04\uc5d0 \uac00\uc7a5 \uc77c\ubc18\uc801\uc73c\ub85c \ud2b8\ub9bd\ub429\ub2c8\ub2e4. \ud328\ub110 \uc804\ub958\ub294 \uc628\ub3c4\uac00 \ub0ae\uc544\uc9c8\uc218\ub85d \uc57d 0.05%\/\u00b0C \uc99d\uac00\ud558\ub294\ub370, 25\u00b0C\uc5d0\uc11c \uc815\uaca9 9.8A Isc\uc778 350W \ud328\ub110\uc740 \ub9d1\uc740 \uaca8\uc6b8 \uc544\uce68 -10\u00b0C\uc5d0\uc11c 10.8A\ub97c \uc0dd\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc2a4\ud2b8\ub9c1 \ucc28\ub2e8\uae30\uc758 \ud06c\uae30\uac00 \uc791\uc740 \uacbd\uc6b0(\ub9c8\uc9c4 \uc5c6\uc774 \ucd5c\uc18c NEC 1.56 \uacc4\uc218 \uc0ac\uc6a9), \uc774\ub7ec\ud55c \uc870\uac74\uc740 \uc131\uac00\uc2e0 \ud2b8\ub9bd\uc744 \uc720\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, 9.8A Isc \ud328\ub110(9.8 \u00d7 1.56 = \ucd5c\uc18c 15.3A)\uc744 \ubcf4\ud638\ud558\ub294 15A \ucc28\ub2e8\uae30\ub294 \ud2b8\ub9bd \uc9c0\uc810\uc5d0 \ub9e4\uc6b0 \uac00\uae5d\uac8c \ubc30\uce58\ub429\ub2c8\ub2e4. \ub192\uc740 \uc870\ub3c4(\uc9c0\uc0c1 \ub208 \ubc18\uc0ac\ub85c 1200W\/m\u00b2 \uac00\ub2a5)\uc640 \ub0ae\uc740 \uc628\ub3c4\uc5d0\uc11c\ub294 \uc2e4\uc81c \uc2a4\ud2b8\ub9c1 \uc804\ub958\uac00 11.5A\uc5d0 \ub3c4\ub2ec\ud558\uc5ec \uba87 \ubd84 \ub3d9\uc548 \uc9c0\uc18d\ub420 \uacbd\uc6b0 15A \ucc28\ub2e8\uae30\uac00 125% \uc784\uacc4\uac12(18.75A)\uc5d0\uc11c \ud2b8\ub9bd\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc194\ub8e8\uc158: \ucc28\ub2e8\uae30 \uc0ac\uc774\uc9d5\uc5d0 NEC \ucd5c\uc18c\uac12 \uc774\uc0c1\uc758 \ucda9\ubd84\ud55c \uc5ec\uc720\uac00 \ud3ec\ud568\ub418\uc5b4 \uc788\ub294\uc9c0 \ud655\uc778\ud558\uc138\uc694. \uc784\uacc4\uac12 \uadfc\ucc98\uc5d0\uc11c \uacc4\uc0b0\ub41c \uc2a4\ud2b8\ub9c1\uc758 \uacbd\uc6b0 15A \ub300\uc2e0 20A \ucc28\ub2e8\uae30\ub97c \uace0\ub824\ud558\uc138\uc694. \ub610\ud55c \uc5f4 \ud2b8\ub9bd \uba54\ucee4\ub2c8\uc998\uc5d0 \uae30\uc5ec\ud558\ub294 \ub204\uc124 \uc804\ub958\ub97c \ucd94\uac00\ud560 \uc218 \uc788\ub294 \uc811\uc9c0 \uacb0\ud568\uc774 \uc788\ub294\uc9c0 \ud655\uc778\ud558\uc138\uc694. \uc801\uc808\ud55c \ud06c\uae30\uc758 \ucc28\ub2e8\uae30\ub97c \uc0ac\uc6a9\ud574\ub3c4 \ud2b8\ub9bd\uc774 \uc9c0\uc18d\ub418\uba74 \ubc30\uc120 \uc808\uc5f0\uc774 \uc190\uc0c1\ub418\uc5c8\uac70\ub098 \ubc30\uc120\ud568\uc5d0 \uc2b5\uae30\uac00 \uce68\ud22c\ud588\ub294\uc9c0 \uc870\uc0ac\ud558\uc138\uc694.<\/p>\n\n\n\n

\ud0dc\uc591\uad11 \uc2dc\uc2a4\ud15c\uc758 DC \ucc28\ub2e8\uae30\ub294 \uc5bc\ub9c8\ub098 \uc790\uc8fc \uad50\uccb4\ud558\uac70\ub098 \ud14c\uc2a4\ud2b8\ud574\uc57c \ud558\ub098\uc694?<\/h3>\n\n\n\n

\ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 DC \ucc28\ub2e8\uae30\ub294 \uc811\ucd09 \uc6a9\uc811\uc744 \ubc29\uc9c0\ud558\uace0 \uae30\uacc4\uc801 \uc791\ub3d9\uc744 \ubcf4\uc7a5\ud558\uae30 \uc704\ud574 \ub9e4\ub144 \uc218\ub3d9\uc73c\ub85c \uc791\ub3d9(\ubb34\ubd80\ud558 \uc870\uac74\uc5d0\uc11c \uc804\uc6d0\uc744 \uaed0\ub2e4\uac00 \ub2e4\uc2dc \ucf1c\uae30)\ud574\uc57c \ud569\ub2c8\ub2e4. \ud68c\ub85c\uac00 \uc804\ud658\ub420 \ub54c \uc815\uae30\uc801\uc73c\ub85c \uc791\ub3d9\ud558\ub294 \uac74\ubb3c \ud328\ub110\uc758 AC \ucc28\ub2e8\uae30\uc640 \ub2ec\ub9ac \ud0dc\uc591\uad11 DC \ucc28\ub2e8\uae30\ub294 \uc218\ub144 \ub3d9\uc548 \uc791\ub3d9\ud558\uc9c0 \uc54a\uace0 \ub2eb\ud600 \uc788\ub294 \uacbd\uc6b0\uac00 \ub9ce\uae30 \ub54c\ubb38\uc5d0 \uc811\ucd09 \ud45c\uba74\uc774 \uc0b0\ud654\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc721\uc548 \uac80\uc0ac\ub294 \ub2e4\uc74c\uc744 \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4:
- \ub2e8\uc790 \uc8fc\ubcc0\uc758 \ubcc0\uc0c9 \ub610\ub294 \ub179\uc544\ub0b4\ub9bc(\ub290\uc2a8\ud55c \uc5f0\uacb0\ub85c \uc778\ud55c \uacfc\uc5f4\uc758 \uc9d5\ud6c4)
- \ucc28\ub2e8\uae30 \ud558\uc6b0\uc9d5 \ub610\ub294 \ub2e8\uc790\uc758 \ubd80\uc2dd
- \uc544\ud06c\uc758 \uc99d\uac70(\ud0c4\uc18c \uce68\uc804\ubb3c, \ubc84\uc2a4 \ubc14\uc758 \ud53c\ud305)<\/p>\n\n\n\n

\uc5f4 \uc21c\ud658\uc73c\ub85c \uc778\ud574 \uc2dc\uac04\uc774 \uc9c0\ub0a8\uc5d0 \ub530\ub77c \uc5f0\uacb0\uc774 \ub290\uc2a8\ud574\uc9c8 \uc218 \uc788\ub294 \ud33d\ucc3d\/\uc218\ucd95\uc774 \ubc1c\uc0dd\ud558\ubbc0\ub85c \ub9e4\ub144 \uc81c\uc870\uc5c5\uccb4 \uc0ac\uc591\uc5d0 \ub530\ub77c \ubaa8\ub4e0 \ub2e8\uc790 \uc5f0\uacb0\ubd80\uc758 \ud1a0\ud06c\ub97c \ub2e4\uc2dc \uc870\uc5ec \uc8fc\uc138\uc694. \uc77c\ubc18\uc801\uc778 DC \ucc28\ub2e8\uae30 \ub2e8\uc790\ub294 #10-12 AWG \ub3c4\uccb4\uc758 \uacbd\uc6b0 35-50in-lbs\uc758 \ud1a0\ud06c\ub97c \ud544\uc694\ub85c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ucc28\ub2e8\uae30\uac00 \uace0\uc7a5 \uc870\uac74 \uc5c6\uc774 \ubc18\ubcf5\uc801\uc73c\ub85c \ud2b8\ub9bd\ub418\uac70\ub098, \ud2b8\ub9bd \ud6c4 \uc7ac\uc124\uc815\ub418\uc9c0 \uc54a\uac70\ub098, \ubb3c\ub9ac\uc801 \uc190\uc0c1\uc744 \ubcf4\uc774\uac70\ub098, \ubd80\ud558 \ud14c\uc2a4\ud2b8 \uc911\uc5d0 \ud2b8\ub9bd\ub418\uc9c0 \uc54a\ub294 \uacbd\uc6b0 \uad50\uccb4\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc6a9\uc73c\ub85c \uc124\uacc4\ub41c \ub300\ubd80\ubd84\uc758 \uace0\ud488\uc9c8 DC \ucc28\ub2e8\uae30\ub294 20\ub144 \uc774\uc0c1\uc758 \uc791\ub3d9 \uc218\uba85\uc744 \uac16\uc9c0\ub9cc \uc5f4\uc545\ud55c \ud658\uacbd(\uadf9\ud55c \uc628\ub3c4, \ubd80\uc2dd, UV)\uc5d0 \ub178\ucd9c\ub418\uba74 \uc774 \uc218\uba85\uc774 \ub2e8\ucd95\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uae4c\ub2e4\ub85c\uc6b4 \uae30\ud6c4\uc5d0\uc11c \uc2e4\uc678 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4 \ucc28\ub2e8\uae30\uc758 \uad50\uccb4 \uc8fc\uae30\ub294 10~15\ub144\uc73c\ub85c \ucc45\uc815\ud558\uc138\uc694.<\/p>\n\n\n\n

\uc815\uaca9 \uc804\uc555\uc774 \ubd80\uc871\ud55c DC \ucc28\ub2e8\uae30\ub97c \uc124\uce58\ud558\uba74 \uc5b4\ub5bb\uac8c \ub418\ub098\uc694?<\/h3>\n\n\n\n

\uc2dc\uc2a4\ud15c\uc758 \ucd5c\ub300 \uac1c\ubc29 \ud68c\ub85c \uc804\uc555\ubcf4\ub2e4 \ub0ae\uc740 \uc815\uaca9 \uc804\uc555\uc758 DC \ucc28\ub2e8\uae30\ub97c \uc124\uce58\ud558\uba74 \ucc28\ub2e8\uae30\uac00 \ud574\ub2f9 \uc804\uc555\uc5d0\uc11c \uace0\uc7a5 \uc804\ub958\ub97c \uc548\uc815\uc801\uc73c\ub85c \ucc28\ub2e8\ud560 \uc218 \uc5c6\uae30 \ub54c\ubb38\uc5d0 \uadf9\ub3c4\uc758 \uc548\uc804 \uc704\ud5d8\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubd80\ud558\uac00 \uac78\ub9b0 \uc0c1\ud0dc\uc5d0\uc11c \ucc28\ub2e8\uae30\uac00 \uc5f4\ub9ac\uba74 \ubd84\ub9ac \uc811\uc810 \uc0ac\uc774\uc5d0 \uc804\uae30 \uc544\ud06c\uac00 \ud615\uc131\ub429\ub2c8\ub2e4. \ucc28\ub2e8\uae30\uac00 \uc774 \uc544\ud06c\ub97c \uc18c\uba78\uc2dc\ucf1c\uc57c \ud68c\ub85c\ub97c \uc644\uc804\ud788 \ucc28\ub2e8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc544\ud06c \uc804\uc555\uc740 \ud68c\ub85c \uc804\uc555\uc5d0 \ub530\ub77c \uc99d\uac00\ud558\ub294\ub370, 600V DC\uc5d0\uc11c\ub294 \uc544\ud06c\uac00 250V DC\ubcf4\ub2e4 \ud6e8\uc52c \ub354 \ud070 \uc5d0\uc5b4 \uac2d\uc744 \uac00\ub85c\uc9c8\ub7ec \uc9c0\uc18d\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. 400V \ud0dc\uc591\uad11 \uc2a4\ud2b8\ub9c1\uc5d0 \uc124\uce58\ub41c 250V DC \uc815\uaca9 \ucc28\ub2e8\uae30\ub294 \uc624\ub958\ub97c \ucc28\ub2e8\ud558\ub824\uace0 \uc2dc\ub3c4\ud558\uc9c0\ub9cc \uc544\ud06c \uc804\uc555\uc774 \ucc28\ub2e8\uae30\uc758 \uc544\ud06c \ucc28\ub2e8 \uae30\ub2a5\uc744 \ucd08\uacfc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8 \uacb0\uacfc \uc544\ud06c\uac00 \uc18c\uba78\ub418\uc9c0 \uc54a\uace0 \uc5f4\ub9b0 \uc811\uc810 \uc0ac\uc774\uc758 \uc774\uc628\ud654\ub41c \uacf5\uae30\ub97c \ud1b5\ud574 \uc804\ub958\uac00 \uacc4\uc18d \ud750\ub974\uac8c \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc774\ub7ec\ud55c \uc9c0\uc18d\uc801\uc778 \uc544\ud06c\ub294 3,000\u00b0C\ub97c \ucd08\uacfc\ud558\ub294 \uc628\ub3c4\ub97c \ubc1c\uc0dd\uc2dc\ucf1c \ucc28\ub2e8\uae30 \ubd80\ud488\uc744 \ub179\uc774\uace0 \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4 \uc778\ud074\ub85c\uc800\ub97c \uc810\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucc28\ub2e8\uae30\ub294 \uc0ac\uc2e4\uc0c1 \ubcf4\ud638 \uc7a5\uce58\uac00 \uc544\ub2cc \uc601\uad6c\uc801\uc778 \uc544\ud06c \uace0\uc7a5 \uc704\ud5d8 \uc694\uc18c\uac00 \ub429\ub2c8\ub2e4. \ub610\ud55c \uac15\ub82c\ud55c \uc5f4\uacfc \ud50c\ub77c\uc988\ub9c8\ub85c \uc778\ud574 \ucc28\ub2e8\uae30\uac00 \ud3ed\ubc1c\ud558\uc5ec \uc6a9\uc735 \uae08\uc18d\uc774 \ubd84\uc0ac\ub418\uace0 \uac10\uc804 \uc704\ud5d8\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud56d\uc0c1 \uc800\uc628 \ubcf4\uc815 \uacc4\uc218\ub97c \ud3ec\ud568\ud55c \ucd5c\ub300 \uc2dc\uc2a4\ud15c \uc804\uc555\uc744 \uacc4\uc0b0\ud558\uace0(\ucd94\uc6b4 \uae30\ud6c4\uc5d0 \uc124\uce58\ud558\ub294 \uacbd\uc6b0 Voc\uc5d0 1.12-1.14\ub97c \uacf1\ud558\uc138\uc694) \uc77c\ubc18\uc801\uc778 \uc8fc\uac70\uc6a9 \uc2dc\uc2a4\ud15c\uc758 \uacbd\uc6b0 \ucd5c\uc18c 600V DC \uc815\uaca9\uc758 \ucc28\ub2e8\uae30\ub97c \uc120\ud0dd\ud558\uc138\uc694. 1000V \ub610\ub294 1500V\uc5d0\uc11c \uc791\ub3d9\ud558\ub294 \uc720\ud2f8\ub9ac\ud2f0 \uaddc\ubaa8\uc758 \uc2dc\uc2a4\ud15c\uc5d0\ub294 \ud574\ub2f9 \uc804\uc555 \ub4f1\uae09\uc5d0 \ub9de\uac8c \uc124\uacc4\ub41c \ud2b9\uc218 \uc815\uaca9 \ucc28\ub2e8\uae30\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uacb0\ub860<\/h2>\n\n\n\n

DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \uc560\ud50c\ub9ac\ucf00\uc774\uc158, \ud2b9\ud788 \uc2a4\ud2b8\ub9c1 \ub808\ubca8\uacfc \ucef4\ubc14\uc774\ub108 \ub808\ubca8 \ubcf4\ud638 \uac04\uc758 \uc911\uc694\ud55c \ucc28\uc774\uc810\uc744 \uc774\ud574\ud558\ub294 \uac83\uc740 \uc548\uc804\ud558\uace0 \uaddc\uc815\uc744 \uc900\uc218\ud558\uba70 \uc720\uc9c0 \uad00\ub9ac\uac00 \uac00\ub2a5\ud55c \ud0dc\uc591\uad11 \uc2dc\uc2a4\ud15c\uc744 \uc124\uacc4\ud558\ub294 \ub370 \ud544\uc218\uc801\uc785\ub2c8\ub2e4. \uc2a4\ud2b8\ub9c1 \ucc28\ub2e8\uae30\ub294 \uc138\ubd84\ud654\ub41c \uc81c\uc5b4 \ubc0f \uc5ed\uc804\ub958 \ubcf4\ud638\ub97c \uc81c\uacf5\ud558\ub294 \ubc18\uba74, \uba54\uc778 \ucef4\ubc14\uc774\ub108 \ucc28\ub2e8\uae30\ub294 \uc7a5\ube44\ub97c \ubcf4\ud638\ud558\uace0 \uc804\uccb4 \uc5b4\ub808\uc774 \uc5f0\uacb0\uc744 \ucc28\ub2e8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc8fc\uc694 \uc694\uc810:<\/strong><\/p>\n\n\n\n

1. NEC 690.9 \ub4dc\ub77c\uc774\ube0c \ubcf4\ud638 \uc544\ud0a4\ud14d\ucc98<\/strong>: \uc5ec\ub7ec \uc18c\uc2a4\uc5d0\uc11c \uc804\ub958\ub97c \uc218\uc2e0\ud560 \uc218 \uc788\ub294 \ubaa8\ub4e0 PV \ud68c\ub85c\uc5d0\ub294 \uacfc\uc804\ub958 \ubcf4\ud638 \uae30\ub2a5\uc774 \ud544\uc694\ud558\ubbc0\ub85c 30V \uc774\uc0c1\uc758 \ubcd1\ub82c \uc2a4\ud2b8\ub9c1\uc774 4\uac1c \uc774\uc0c1\uc778 \uc5b4\ub808\uc774\uc5d0\ub294 \uc2a4\ud2b8\ub9c1 \ucc28\ub2e8\uae30\uac00 \ud544\uc218\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

2. DC \ub4f1\uae09\uc740 \ud611\uc0c1 \ubd88\uac00<\/strong>: \uc2dc\uc2a4\ud15c\uc758 \ucd5c\ub300 Voc-AC \ucc28\ub2e8\uae30\ub294 \uc804\uc555 \uc815\uaca9\uc5d0 \uad00\uacc4\uc5c6\uc774 DC \uace0\uc7a5 \uc804\ub958\ub97c \uc548\uc804\ud558\uac8c \ucc28\ub2e8\ud560 \uc218 \uc5c6\uc73c\ubbc0\ub85c DC \uc804\uc555\uc5d0 \ub300\ud574 \uba85\uc2dc\uc801\uc73c\ub85c \uc815\uaca9\uc774 \uc9c0\uc815\ub41c \ud68c\ub85c \ucc28\ub2e8\uae30\ub9cc \uc0ac\uc6a9\ud558\uc138\uc694.<\/p>\n\n\n\n

3. \uc801\uc808\ud55c \uc0ac\uc774\uc9d5\uc73c\ub85c \uc131\uac00\uc2e0 \uc5ec\ud589 \ubc29\uc9c0<\/strong>: \ud328\ub110 Isc\uc758 156%\uc5d0\uc11c \uc2a4\ud2b8\ub9c1 \ucc28\ub2e8\uae30\ub97c \uacc4\uc0b0\ud558\uace0 \ub2e4\uc74c \ud45c\uc900 \ud06c\uae30\ub85c \ubc18\uc62c\ub9bc\ud55c \ub2e4\uc74c \ubaa8\ub4e0 \uc2a4\ud2b8\ub9c1 \ucc28\ub2e8\uae30 \uc815\uaca9\uc758 \ud569\uc778 125%\uc5d0\uc11c \uc8fc \ucc28\ub2e8\uae30 \ud06c\uae30\ub97c \uc815\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

4. \ud658\uacbd\uc801 \uc694\uc778 \uc911\uc694\uc131<\/strong>: \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4\uac00 20\ub144 \uc774\uc0c1 \uc0ac\uc6a9\ud558\uba74\uc11c \uacaa\uac8c \ub420 \uadf9\ud55c\uc758 \uc628\ub3c4, \uc790\uc678\uc120 \ub178\ucd9c, \ubd80\uc2dd \uc870\uac74\uc5d0 \uc801\ud569\ud55c \ucc28\ub2e8\uae30\ub97c \uc120\ud0dd\ud558\uc138\uc694.<\/p>\n\n\n\n

5. \uc625\uc0c1 \uc2dc\uc2a4\ud15c\uc5d0\ub294 \uc544\ud06c \uc624\ub958 \ubcf4\ud638\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/strong>: \ud2b9\uc218 \ucc28\ub2e8\uae30, \ucef4\ubc14\uc774\ub108 \ubaa8\ub4c8 \ub610\ub294 \uc778\ubc84\ud130 \uae30\ub2a5\uc744 \ud1b5\ud574 AFCI \ubcf4\ud638 \uae30\ub2a5\uc744 \ud1b5\ud569\ud558\uc5ec NEC 690.11 \uc694\uad6c \uc0ac\ud56d\uc744 \ucda9\uc871\ud558\uace0 \ud654\uc7ac \uc704\ud5d8\uc744 \uc904\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc801\uc808\ud558\uac8c \uc124\uacc4\ub41c DC \ucc28\ub2e8\uae30 \ud0dc\uc591\uad11 \ubcf4\ud638 \uc2dc\uc2a4\ud15c\uc744 \uad6c\ud604\ud558\uba74 \uc548\uc804\uc744 \uc81c\uacf5\ud558\uace0 \ud6a8\uc728\uc801\uc778 \uc720\uc9c0\ubcf4\uc218\uac00 \uac00\ub2a5\ud558\uba70 \uace0\uac00\uc758 \uc7a5\ube44\ub97c \ubcf4\ud638\ud558\uace0 \uc7a5\uae30\uc801\uc778 \uc2dc\uc2a4\ud15c \uc2e0\ub8b0\uc131\uc744 \ubcf4\uc7a5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc801\uc808\ud55c \uc0ac\uc591\uc744 \uac16\ucd98 \uace0\ud488\uc9c8 DC \uc815\uaca9 \ucc28\ub2e8\uae30\uc758 \uc810\uc9c4\uc801\uc778 \ube44\uc6a9 \uc99d\uac00\ub294 \uc804\uccb4 \uc124\ube44\ub97c \ud30c\uad34\ud560 \uc218 \uc788\ub294 \uce58\uba85\uc801\uc778 \uace0\uc7a5\uc5d0 \ub300\ud55c \ubcf4\ud5d8\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uad00\ub828 \ub9ac\uc18c\uc2a4:<\/strong>
- DC \ud68c\ub85c \ucc28\ub2e8\uae30 \uae30\uc220: \ud0dc\uc591\uad11 \ubcf4\ud638\uc5d0 \ub300\ud55c \uc644\ubcbd\ud55c \uac00\uc774\ub4dc<\/a>
- PV \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4 \uc124\uacc4: \uc2a4\ud2b8\ub9c1 \uad00\ub9ac \ubc0f \ubcf4\ud638 \uc544\ud0a4\ud14d\ucc98<\/a>
- DC \uc11c\uc9c0 \ubcf4\ud638 \uc7a5\uce58: \ud0dc\uc591\uad11 \uc2dc\uc2a4\ud15c\uc744 \uc704\ud55c \ub099\ub8b0 \ubc0f \uacfc\ub3c4 \ubcf4\ud638<\/a><\/p>\n\n\n\n

\ud0dc\uc591\uad11 \ud504\ub85c\uc81d\ud2b8\uc5d0 DC \ubcf4\ud638\ub97c \uc9c0\uc815\ud560 \uc900\ube44\uac00 \ub418\uc168\ub098\uc694?<\/strong> \uc560\ud50c\ub9ac\ucf00\uc774\uc158\ubcc4 \ucc28\ub2e8\uae30 \uc120\ud0dd, \ucef4\ubc14\uc774\ub108 \ubc15\uc2a4 \uc124\uacc4 \uc9c0\uc6d0 \ubc0f NEC \uaddc\uc815 \uc900\uc218 \ud655\uc778\uc740 \uae30\uc220\ud300\uc5d0 \ubb38\uc758\ud558\uc138\uc694. \ub2f9\uc0ac\ub294 \uc0c1\uc138\ud55c \ubd80\ud558 \uacc4\uc0b0, \uc544\ud06c \ud50c\ub798\uc2dc \ubd84\uc11d \ubc0f \uc644\ubcbd\ud55c \uc2dc\uc2a4\ud15c \ubcf4\ud638 \uc870\uc815\uc744 \uc81c\uacf5\ud558\uc5ec PV \uc124\uce58\uac00 \ubaa8\ub4e0 \uc548\uc804 \ubc0f \uc131\ub2a5 \uc694\uad6c \uc0ac\ud56d\uc744 \ucda9\uc871\ud558\ub3c4\ub85d \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub9c8\uc9c0\ub9c9 \uc5c5\ub370\uc774\ud2b8:<\/strong> 2025\ub144 10\uc6d4
\uc791\uc131\uc790:<\/strong> SYNODE \uae30\uc220\ud300
\uac80\ud1a0\uc790\uac00 \uac80\ud1a0\ud588\uc2b5\ub2c8\ub2e4:<\/strong> \uc804\uae30 \uacf5\ud559\ubd80<\/p>","protected":false},"excerpt":{"rendered":"

Introduction Understanding dc breaker solar applications is critical for designing safe, code-compliant photovoltaic systems. Solar installations require specialized overcurrent protection at multiple points\u2014from individual string circuits to combiner boxes and beyond\u2014to protect expensive equipment and prevent fire hazards. Unlike traditional AC electrical systems, solar DC circuits present unique challenges. PV arrays can generate fault currents […]<\/p>\n","protected":false},"author":1,"featured_media":2218,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36],"tags":[],"class_list":["post-2224","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dc-circuit-breaker-blog"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/posts\/2224","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/comments?post=2224"}],"version-history":[{"count":1,"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/posts\/2224\/revisions"}],"predecessor-version":[{"id":2237,"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/posts\/2224\/revisions\/2237"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/media\/2218"}],"wp:attachment":[{"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/media?parent=2224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/categories?post=2224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinobreaker.com\/ko\/wp-json\/wp\/v2\/tags?post=2224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}