{"id":18519,"date":"2025-07-17T09:32:15","date_gmt":"2025-07-17T01:32:15","guid":{"rendered":"https:\/\/viox.com\/?p=18519"},"modified":"2025-07-17T09:33:47","modified_gmt":"2025-07-17T01:33:47","slug":"difference-between-a-combiner-box-and-a-junction-box","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/difference-between-a-combiner-box-and-a-junction-box\/","title":{"rendered":"S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa h\u1ed9p k\u1ebft h\u1ee3p v\u00e0 h\u1ed9p n\u1ed1i"},"content":{"rendered":"<div class=\"product-intro\">\n<p><strong>S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa h\u1ed9p k\u1ebft h\u1ee3p (combiner box) v\u00e0 h\u1ed9p \u0111\u1ea5u d\u00e2y (junction box) l\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a ch\u00fang: h\u1ed9p k\u1ebft h\u1ee3p k\u1ebft h\u1ee3p nhi\u1ec1u \u0111\u1ea7u v\u00e0o \u0111i\u1ec7n t\u1eeb c\u00e1c ngu\u1ed3n nh\u01b0 t\u1ea5m pin m\u1eb7t tr\u1eddi th\u00e0nh m\u1ed9t \u0111\u1ea7u ra duy nh\u1ea5t v\u1edbi b\u1ea3o v\u1ec7 an to\u00e0n t\u00edch h\u1ee3p, trong khi h\u1ed9p \u0111\u1ea5u d\u00e2y ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 b\u1ea3o v\u1ec7 c\u00e1c k\u1ebft n\u1ed1i d\u00e2y v\u00e0 m\u1ed1i n\u1ed1i m\u00e0 kh\u00f4ng k\u1ebft h\u1ee3p c\u00e1c ngu\u1ed3n \u0111i\u1ec7n.<\/strong><\/p>\n<p>Hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi an to\u00e0n \u0111i\u1ec7n, tu\u00e2n th\u1ee7 quy chu\u1ea9n v\u00e0 hi\u1ec7u qu\u1ea3 h\u1ec7 th\u1ed1ng. Ch\u1ecdn sai lo\u1ea1i c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u1ea3 an to\u00e0n v\u00e0 hi\u1ec7u su\u1ea5t, \u0111\u1ed3ng th\u1eddi vi ph\u1ea1m c\u00e1c quy t\u1eafc \u0111i\u1ec7n.<\/p>\n<h2>Tham kh\u1ea3o nhanh: C\u00e1c \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh<\/h2>\n<table>\n<tbody>\n<tr>\n<th>N\u0103ng<\/th>\n<th>H\u1ed9p k\u1ebft h\u1ee3p<\/th>\n<th>H\u1ed9p<\/th>\n<\/tr>\n<tr>\n<td><strong>Ch\u1ee9c n\u0103ng ch\u00ednh<\/strong><\/td>\n<td>K\u1ebft h\u1ee3p nhi\u1ec1u s\u1ee9c m\u1ea1nh \u0111\u1ea7u v\u00e0o m\u1ed9t \u0111\u1ea7u ra<\/td>\n<td>B\u1ea3o v\u1ec7 v\u00e0 ch\u1ee9a c\u00e1c k\u1ebft n\u1ed1i d\u00e2y<\/td>\n<\/tr>\n<tr>\n<td><strong>K\u1ebft h\u1ee3p ngu\u1ed3n<\/strong><\/td>\n<td>C\u00f3 - h\u1ee3p nh\u1ea5t c\u00e1c ngu\u1ed3n \u0111i\u1ec7n<\/td>\n<td>Kh\u00f4ng - kh\u00f4ng k\u1ebft h\u1ee3p ngu\u1ed3n<\/td>\n<\/tr>\n<tr>\n<td><strong>B\u1ea3o v\u1ec7 t\u00edch h\u1ee3p<\/strong><\/td>\n<td>C\u1ea7u ch\u00ec, b\u1ed9 ng\u1eaft m\u1ea1ch, b\u1ea3o v\u1ec7 ch\u1ed1ng s\u00e9t lan truy\u1ec1n<\/td>\n<td>Kh\u00f4ng c\u00f3 - ch\u1ec9 b\u1ea3o v\u1ec7<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1ee8ng d\u1ee5ng<\/strong><\/td>\n<td>H\u1ec7 th\u1ed1ng PV m\u1eb7t tr\u1eddi, n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o<\/td>\n<td>H\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n th\u00f4ng th\u01b0\u1eddng<\/td>\n<\/tr>\n<tr>\n<td><strong>Ph\u1ea1m Vi \u0110i\u1ec7n \u00c1p<\/strong><\/td>\n<td>\u0110i\u1ec7n \u00e1p cao (l\u00ean \u0111\u1ebfn 600V DC)<\/td>\n<td>\u0110i\u1ec7n \u00e1p th\u1ea5p \u0111\u1ebfn trung b\u00ecnh<\/td>\n<\/tr>\n<tr>\n<td><strong>Chi ph\u00ed<\/strong><\/td>\n<td>\u0110\u1ea7u t\u01b0 cao h\u01a1n<\/td>\n<td>Gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng<\/td>\n<\/tr>\n<tr>\n<td><strong>M\u00f4i tr\u01b0\u1eddng<\/strong><\/td>\n<td>Ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft, \u0111\u01b0\u1ee3c x\u1ebfp h\u1ea1ng ngo\u00e0i tr\u1eddi<\/td>\n<td>T\u00f9y ch\u1ecdn trong nh\u00e0\/ngo\u00e0i tr\u1eddi<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>H\u1ed9p k\u1ebft h\u1ee3p: \u0110\u1ecbnh ngh\u0129a v\u00e0 m\u1ee5c \u0111\u00edch<\/h2>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-17745\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/dc-combiner-box-fuse-and-mcb.webp\" alt=\"dc combiner box fuse and mcb\" width=\"600\" height=\"367\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/dc-combiner-box-fuse-and-mcb.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/dc-combiner-box-fuse-and-mcb-300x184.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/dc-combiner-box-fuse-and-mcb-18x12.webp 18w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong>M\u1ed9t <a href=\"https:\/\/test.viox.com\/vi\/the-ultimate-guide-to-solar-combiner-boxes-from-basics-to-advanced-technologies\/\">h\u1ed9p k\u1ebft h\u1ee3p<\/a> l\u00e0 m\u1ed9t v\u1ecf \u0111i\u1ec7n chuy\u00ean d\u1ee5ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o, k\u1ebft h\u1ee3p nhi\u1ec1u \u0111\u1ea7u v\u00e0o ngu\u1ed3n th\u00e0nh m\u1ed9t \u0111\u1ea7u ra duy nh\u1ea5t \u0111\u1ed3ng th\u1eddi cung c\u1ea5p b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng v\u00e0 ch\u1ed1ng s\u00e9t lan truy\u1ec1n.<\/strong><\/p>\n<h3>C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a h\u1ed9p k\u1ebft h\u1ee3p<\/h3>\n<p><strong>H\u1ed9p k\u1ebft h\u1ee3p kh\u00f4ng ch\u1ec9 l\u00e0 h\u1ed9p \u0111\u1ea5u d\u00e2y \u0111\u01a1n gi\u1ea3n\u2014ch\u00fang \u0111\u01b0\u1ee3c trang b\u1ecb c\u00e1c th\u00e0nh ph\u1ea7n an to\u00e0n quan tr\u1ecdng bao g\u1ed3m:<\/strong><\/p>\n<ul>\n<li><strong><a href=\"https:\/\/test.viox.com\/vi\/mcb\/\">M\u00e1y c\u1eaft m\u1ea1ch<\/a> v\u00e0 <a href=\"https:\/\/test.viox.com\/vi\/ac-fuse-vs-dc-fuse\/\">C\u1ea7u ch\u00ec<\/a><\/strong>: Cung c\u1ea5p tuy\u1ebfn ph\u00f2ng th\u1ee7 \u0111\u1ea7u ti\u00ean ch\u1ed1ng l\u1ea1i c\u00e1c t\u00ecnh hu\u1ed1ng qu\u00e1 d\u00f2ng, v\u1edbi c\u1ea7u ch\u00ec n\u1ed5 \u0111\u1ec3 c\u1eaft \u0111i\u1ec7n v\u00e0 b\u1ed9 ng\u1eaft m\u1ea1ch c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u1ea1i thay v\u00ec thay th\u1ebf<\/li>\n<li><a href=\"https:\/\/test.viox.com\/vi\/spd\/\"><strong>Thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 ch\u1ed1ng s\u00e9t lan truy\u1ec1n DC (SPD)<\/strong><\/a>: B\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng kh\u1ecfi s\u00e9t \u0111\u00e1nh v\u00e0 \u0111i\u1ec7n \u00e1p t\u0103ng \u0111\u1ed9t bi\u1ebfn<\/li>\n<li><a href=\"https:\/\/test.viox.com\/vi\/dc-isolator-switch\/\"><strong>C\u00f4ng t\u1eafc ng\u1eaft DC<\/strong><\/a>: Cho ph\u00e9p t\u1eaft h\u1ec7 th\u1ed1ng nhanh ch\u00f3ng trong qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec ho\u1eb7c tr\u01b0\u1eddng h\u1ee3p kh\u1ea9n c\u1ea5p<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng gi\u00e1m s\u00e1t<\/strong>: Theo d\u00f5i hi\u1ec7u su\u1ea5t c\u1ee7a t\u1eebng chu\u1ed7i trong c\u00e1c m\u00f4 h\u00ecnh n\u00e2ng cao<\/li>\n<li><a href=\"https:\/\/test.viox.com\/vi\/danh-muc-san-pham\/electric-box\/waterproof-enclosure-box\/waterproof-distribution-box-ht-series\/\"><strong>V\u1ecf ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft<\/strong><\/a>: X\u1ebfp h\u1ea1ng t\u1ed1i thi\u1ec3u NEMA 3R, v\u1edbi v\u1ecf NEMA 4 v\u00e0 4X ph\u1ed5 bi\u1ebfn h\u01a1n cho c\u00e1c c\u00e0i \u0111\u1eb7t ngo\u00e0i tr\u1eddi<\/li>\n<\/ul>\n<h3>C\u00e1c \u1ee9ng d\u1ee5ng ch\u00ednh cho h\u1ed9p k\u1ebft h\u1ee3p<\/h3>\n<p><strong>H\u1ed9p k\u1ebft h\u1ee3p l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft cho c\u00e1c d\u1ef1 \u00e1n n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o v\u1edbi nhi\u1ec1u ngu\u1ed3n \u0111i\u1ec7n:<\/strong><\/p>\n<ol>\n<li><strong>H\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi PV<\/strong>: K\u1ebft h\u1ee3p nhi\u1ec1u chu\u1ed7i t\u1ea5m pin m\u1eb7t tr\u1eddi th\u00e0nh c\u1ea5u h\u00ecnh song song tr\u01b0\u1edbc khi c\u1ea5p v\u00e0o bi\u1ebfn t\u1ea7n<\/li>\n<li><strong>L\u1eafp \u0111\u1eb7t n\u0103ng l\u01b0\u1ee3ng gi\u00f3<\/strong>: H\u1ee3p nh\u1ea5t \u0111\u1ea7u ra t\u1eeb nhi\u1ec1u tuabin<\/li>\n<li><strong>M\u1ea3ng th\u01b0\u01a1ng m\u1ea1i l\u1edbn<\/strong>: C\u00e1c d\u1ef1 \u00e1n c\u00f3 t\u1eeb b\u1ed1n \u0111\u1ebfn 4.000 chu\u1ed7i y\u00eau c\u1ea7u h\u1ed9p k\u1ebft h\u1ee3p \u0111\u1ec3 qu\u1ea3n l\u00fd \u0111i\u1ec7n hi\u1ec7u qu\u1ea3<\/li>\n<li><strong>N\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi d\u00e2n d\u1ee5ng<\/strong>: M\u1eb7c d\u00f9 kh\u00f4ng b\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng 2-3 chu\u1ed7i, nh\u01b0ng h\u1ed9p k\u1ebft h\u1ee3p cung c\u1ea5p kh\u1ea3 n\u0103ng ng\u1eaft k\u1ebft n\u1ed1i t\u1eadp trung v\u00e0 c\u00e1c \u01b0u \u0111i\u1ec3m b\u1ea3o tr\u00ec<\/li>\n<\/ol>\n<hr \/>\n<h2>H\u1ed9p \u0111\u1ea5u d\u00e2y: \u0110\u1ecbnh ngh\u0129a v\u00e0 ch\u1ee9c n\u0103ng<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-12565\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/12\/electrical-junction-box-with-terminals_.webp\" alt=\"\" width=\"800\" height=\"600\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/12\/electrical-junction-box-with-terminals_.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/12\/electrical-junction-box-with-terminals_-300x225.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/12\/electrical-junction-box-with-terminals_-768x576.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/12\/electrical-junction-box-with-terminals_-16x12.webp 16w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/12\/electrical-junction-box-with-terminals_-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><strong>M\u1ed9t <a href=\"https:\/\/test.viox.com\/vi\/junction-box-manufacturer\/\">h\u1ed9p n\u1ed1i<\/a> l\u00e0 m\u1ed9t v\u1ecf \u0111i\u1ec7n \u0111a n\u0103ng ch\u1ee9a v\u00e0 b\u1ea3o v\u1ec7 c\u00e1c k\u1ebft n\u1ed1i d\u00e2y, m\u1ed1i n\u1ed1i v\u00e0 c\u00e1c m\u1ed1i n\u1ed1i \u0111i\u1ec7n trong h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n d\u00e2n d\u1ee5ng, th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00f4ng nghi\u1ec7p.<\/strong><\/p>\n<h3>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m thi\u1ebft y\u1ebfu c\u1ee7a h\u1ed9p \u0111\u1ea5u d\u00e2y<\/h3>\n<ul>\n<li><strong>B\u1ea3o v\u1ec7 d\u00e2y<\/strong>: B\u1ea3o v\u1ec7 c\u00e1c k\u1ebft n\u1ed1i kh\u1ecfi b\u1ecb h\u01b0 h\u1ea1i do tai n\u1ea1n v\u00e0 gi\u00fap ng\u0103n ch\u1eb7n tia l\u1eeda v\u00e0 nhi\u1ec7t t\u1eeb c\u00e1c k\u1ebft n\u1ed1i l\u1ecfng l\u1ebbo ho\u1eb7c \u0111o\u1ea3n m\u1ea1ch<\/li>\n<li><strong>M\u00e3 Ph\u00f9 H\u1ee3p<\/strong>: Ph\u1ea3i \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng v\u1eadt li\u1ec7u kh\u00f4ng ch\u00e1y nh\u01b0 kim lo\u1ea1i ho\u1eb7c nh\u1ef1a, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng c\u1ee5 th\u1ec3<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn<\/strong>: T\u1ea5t c\u1ea3 c\u00e1c h\u1ed9p \u0111\u1ea5u d\u00e2y ph\u1ea3i c\u00f3 th\u1ec3 ti\u1ebfp c\u1eadn \u0111\u01b0\u1ee3c theo NEC 314.29<\/li>\n<li><strong>Y\u00eau c\u1ea7u v\u1ec1 k\u00edch th\u01b0\u1edbc<\/strong>: Th\u1ec3 t\u00edch ph\u1ea3i \u0111\u1ee7 cho d\u00e2y d\u1eabn, thi\u1ebft b\u1ecb v\u00e0 k\u1eb9p c\u00e1p theo NEC 314.16<\/li>\n<\/ul>\n<h3>C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn c\u1ee7a h\u1ed9p \u0111\u1ea5u d\u00e2y<\/h3>\n<p><strong>H\u1ed9p \u0111\u1ea5u d\u00e2y ph\u1ee5c v\u1ee5 c\u00e1c nhu c\u1ea7u k\u1ebft n\u1ed1i \u0111i\u1ec7n \u0111a d\u1ea1ng:<\/strong><\/p>\n<ul>\n<li><strong>H\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n d\u00e2n d\u1ee5ng<\/strong>: \u0110\u00e8n chi\u1ebfu s\u00e1ng, c\u00f4ng t\u1eafc v\u00e0 \u1ed5 c\u1eafm \u0111i\u1ec7n<\/li>\n<li><strong>T\u00f2a nh\u00e0 th\u01b0\u01a1ng m\u1ea1i<\/strong>: H\u1ec7 th\u1ed1ng \u0111i\u1ec7n trong v\u0103n ph\u00f2ng, c\u1eeda h\u00e0ng b\u00e1n l\u1ebb v\u00e0 nh\u00e0 kho<\/li>\n<li><strong>C\u00e0i \u0111\u1eb7t c\u00f4ng nghi\u1ec7p<\/strong>: B\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i h\u01b0 h\u1ecfng m\u00e1y m\u00f3c v\u00e0 thi\u1ebft b\u1ecb<\/li>\n<li><strong>L\u1eafp \u0111\u1eb7t ngo\u00e0i tr\u1eddi<\/strong>: C\u00e1c m\u1eabu ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft cho \u0111\u00e8n s\u00e2n v\u01b0\u1eddn v\u00e0 c\u00e1c k\u1ebft n\u1ed1i b\u00ean ngo\u00e0i<\/li>\n<\/ul>\n<hr \/>\n<h2>So s\u00e1nh th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/h2>\n<h3>X\u1eed l\u00fd \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n<\/h3>\n<table>\n<tbody>\n<tr>\n<th>\u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt<\/th>\n<th>H\u1ed9p k\u1ebft h\u1ee3p<\/th>\n<th>H\u1ed9p<\/th>\n<\/tr>\n<tr>\n<td><strong>Ph\u1ea1m Vi \u0110i\u1ec7n \u00c1p<\/strong><\/td>\n<td>L\u00ean \u0111\u1ebfn 600V DC (\u1ee9ng d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi)<\/td>\n<td>120V-240V AC (\u0111i\u1ec3n h\u00ecnh d\u00e2n d\u1ee5ng)<\/td>\n<\/tr>\n<tr>\n<td><strong>C\u00f4ng su\u1ea5t hi\u1ec7n t\u1ea1i<\/strong><\/td>\n<td>63A \u0111\u1ebfn 630A v\u1edbi MCCB DC cho c\u00e1c h\u1ec7 th\u1ed1ng c\u00f4ng su\u1ea5t cao<\/td>\n<td>Thay \u0111\u1ed5i theo k\u00edch th\u01b0\u1edbc d\u00e2y v\u00e0 \u1ee9ng d\u1ee5ng<\/td>\n<\/tr>\n<tr>\n<td><strong>K\u1ebft h\u1ee3p ngu\u1ed3n<\/strong><\/td>\n<td>Nhi\u1ec1u \u0111\u1ea7u v\u00e0o \u0111\u1ebfn m\u1ed9t \u0111\u1ea7u ra duy nh\u1ea5t<\/td>\n<td>Kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng k\u1ebft h\u1ee3p ngu\u1ed3n<\/td>\n<\/tr>\n<tr>\n<td><strong>Thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7<\/strong><\/td>\n<td>C\u1ea7u ch\u00ec, b\u1ed9 ng\u1eaft m\u1ea1ch, SPD t\u00edch h\u1ee3p<\/td>\n<td>Y\u00eau c\u1ea7u b\u1ea3o v\u1ec7 b\u00ean ngo\u00e0i<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>X\u1ebfp h\u1ea1ng m\u00f4i tr\u01b0\u1eddng<\/h3>\n<p><strong>Ti\u00eau chu\u1ea9n m\u00f4i tr\u01b0\u1eddng c\u1ee7a h\u1ed9p k\u1ebft h\u1ee3p:<\/strong><\/p>\n<ul>\n<li>T\u1ed1i thi\u1ec3u NEMA 3R \u0111\u1ec3 s\u1eed d\u1ee5ng ngo\u00e0i tr\u1eddi, v\u1edbi NEMA 4X phi kim lo\u1ea1i \u0111\u01b0\u1ee3c \u01b0u ti\u00ean cho c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t<\/li>\n<li>V\u1eadt li\u1ec7u ch\u1ed1ng tia c\u1ef1c t\u00edm \u0111\u1ec3 ti\u1ebfp x\u00fac v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi k\u00e9o d\u00e0i<\/li>\n<li>C\u00e2n nh\u1eafc v\u1ec1 nhi\u1ec7t \u0111\u1ed9 \u0111\u1ec3 l\u00e0m m\u00e1t thi\u1ebft b\u1ecb<\/li>\n<\/ul>\n<p><strong>Ti\u00eau chu\u1ea9n m\u00f4i tr\u01b0\u1eddng cho h\u1ed9p \u0111\u1ea5u d\u00e2y:<\/strong><\/p>\n<ul>\n<li>Ti\u00eau chu\u1ea9n IP65 tr\u1edf l\u00ean cho c\u00e1c l\u1eafp \u0111\u1eb7t ngo\u00e0i tr\u1eddi\/\u1ea9m \u01b0\u1edbt<\/li>\n<li>H\u1ed9p ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft ho\u1eb7c ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc c\u1ea7n thi\u1ebft cho c\u00e1c v\u1ecb tr\u00ed \u1ea9m \u01b0\u1edbt \u0111\u1ec3 ng\u0103n ng\u1eeba \u0103n m\u00f2n v\u00e0 \u0111i\u1ec7n gi\u1eadt<\/li>\n<li>L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u d\u1ef1a tr\u00ean \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng<\/li>\n<\/ul>\n<hr \/>\n<h2>Y\u00eau C\u1ea7u an to\u00e0n v\u00e0 Tu\u00e2n th\u1ee7 M\u00e3<\/h2>\n<h3>\u0110i\u1ec7n qu\u1ed1c gia M\u00e3 (\u0110\u01af\u1ee2C...) y\u00eau C\u1ea7u<\/h3>\n<p><strong>\u0110\u1ed1i v\u1edbi h\u1ed9p n\u1ed1i:<\/strong><\/p>\n<ul>\n<li><strong>Nguy\u00ean v\u1eadt li\u1ec7u<\/strong>: C\u1ea5u tr\u00fac kh\u00f4ng ch\u00e1y (kim lo\u1ea1i ho\u1eb7c nh\u1ef1a \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t)<\/li>\n<li><strong>\u0110\u1ecbnh c\u1ee1<\/strong>: T\u00ednh to\u00e1n th\u1ec3 t\u00edch t\u1ed1i thi\u1ec3u d\u1ef1a tr\u00ean s\u1ed1 l\u01b0\u1ee3ng v\u00e0 k\u00edch th\u01b0\u1edbc d\u00e2y d\u1eabn theo M\u1ee5c 314.16<\/li>\n<li><strong>N\u1ec1n t\u1ea3ng<\/strong>: Y\u00eau c\u1ea7u theo M\u1ee5c 250.110 \u0111\u1ec3 cung c\u1ea5p \u0111\u01b0\u1eddng d\u1eabn tr\u1edf l\u1ea1i d\u00f2ng s\u1ef1 c\u1ed1<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn<\/strong>: Ph\u1ea3i duy tr\u00ec \u0111\u1ed9 s\u00e2u 36 inch v\u00e0 chi\u1ec1u r\u1ed9ng 30 inch theo M\u1ee5c 110.26<\/li>\n<li><strong>H\u1ed7 tr\u1ee3<\/strong>: L\u1eafp \u0111\u1eb7t \u0111\u00fang c\u00e1ch \u0111\u1ec3 tr\u00e1nh x\u00ea d\u1ecbch ho\u1eb7c l\u1ecfng l\u1ebbo<\/li>\n<\/ul>\n<p><strong>\u0110\u1ed1i v\u1edbi h\u1ed9p k\u1ebft h\u1ee3p:<\/strong><\/p>\n<ul>\n<li><strong>B\u1ea3o V\u1ec7 Qu\u00e1 D\u00f2ng<\/strong>: C\u1ea7u ch\u00ec \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c theo d\u00f2ng \u0111i\u1ec7n chu\u1ed7i, b\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u1ec3 b\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng<\/li>\n<li><strong>Ch\u1ed1ng s\u00e9t lan truy\u1ec1n<\/strong>: SPDs (Thi\u1ebft b\u1ecb ch\u1ed1ng s\u00e9t lan truy\u1ec1n) c\u1ea7n thi\u1ebft \u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ed1ng s\u00e9t v\u00e0 qu\u00e1 \u00e1p<\/li>\n<li><strong>N\u1ec1n t\u1ea3ng<\/strong>: H\u1ec7 th\u1ed1ng ti\u1ebfp \u0111\u1ea5t to\u00e0n di\u1ec7n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n<\/li>\n<li><strong>Nh\u00e3n hi\u1ec7u<\/strong>: Nh\u1eadn d\u1ea1ng r\u00f5 r\u00e0ng c\u00e1c m\u1ea1ch v\u00e0 c\u1ea3nh b\u00e1o an to\u00e0n<\/li>\n<\/ul>\n<blockquote>\n<h3>\u26a0\ufe0f C\u1ea3nh b\u00e1o an to\u00e0n quan tr\u1ecdng<\/h3>\n<p>Vi\u1ec7c kh\u00f4ng l\u1eafp \u0111\u1eb7t h\u1ed9p \u0111\u1ea5u d\u00e2y c\u00f3 l\u1ebd l\u00e0 sai l\u1ea7m l\u1edbn nh\u1ea5t m\u00e0 m\u1ecdi ng\u01b0\u1eddi m\u1eafc ph\u1ea3i. H\u1ed9p \u0111\u1ea5u d\u00e2y gi\u1eef c\u00e1c d\u00e2y \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi nhau v\u00e0 tr\u00e1nh xa c\u00e1c v\u1eadt li\u1ec7u d\u1ec5 ch\u00e1y nh\u01b0 g\u1ed7, gi\u00fap ng\u0103n ng\u1eeba h\u1ecfa ho\u1ea1n do \u0111i\u1ec7n v\u00e0 h\u01b0 h\u1ecfng do tai n\u1ea1n.<\/p><\/blockquote>\n<hr \/>\n<h2>Ti\u00eau ch\u00ed l\u1ef1a ch\u1ecdn: Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng t\u1eebng lo\u1ea1i<\/h2>\n<h3>Ch\u1ecdn h\u1ed9p k\u1ebft h\u1ee3p khi:<\/h3>\n<ul>\n<li><strong>\u2705 B\u1ea1n c\u1ea7n k\u1ebft h\u1ee3p nhi\u1ec1u ngu\u1ed3n \u0111i\u1ec7n<\/strong>\n<ul>\n<li>L\u1eafp \u0111\u1eb7t \u0111i\u1ec7n m\u1eb7t tr\u1eddi PV v\u1edbi 4 chu\u1ed7i tr\u1edf l\u00ean<\/li>\n<li>H\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng gi\u00f3 v\u1edbi nhi\u1ec1u tuabin<\/li>\n<li>B\u1ea5t k\u1ef3 d\u1ef1 \u00e1n n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o n\u00e0o y\u00eau c\u1ea7u h\u1ee3p nh\u1ea5t n\u0103ng l\u01b0\u1ee3ng<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u2705 \u1ee8ng d\u1ee5ng DC c\u00f4ng su\u1ea5t cao<\/strong>\n<ul>\n<li>H\u1ec7 th\u1ed1ng x\u1eed l\u00fd c\u00f4ng su\u1ea5t cao, DC v\u00e0 h\u1ed9i t\u1ee5 \u0111\u01b0\u1eddng d\u00e2y \u0111a nh\u00f3m<\/li>\n<li>M\u1ee9c \u0111i\u1ec7n \u00e1p g\u1ea7n 600V DC<\/li>\n<li>Y\u00eau c\u1ea7u d\u00f2ng \u0111i\u1ec7n v\u01b0\u1ee3t qu\u00e1 c\u00f4ng su\u1ea5t d\u00e2n d\u1ee5ng ti\u00eau chu\u1ea9n<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u2705 D\u1ef1 \u00e1n n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o ngo\u00e0i tr\u1eddi<\/strong>\n<ul>\n<li>H\u1ec7 th\u1ed1ng y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft v\u00e0 tia c\u1ef1c t\u00edm cho c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t ngo\u00e0i tr\u1eddi<\/li>\n<li>L\u1eafp \u0111\u1eb7t c\u1ea7n c\u00e1c t\u00ednh n\u0103ng an to\u00e0n t\u00edch h\u1ee3p<\/li>\n<li>C\u00e1c d\u1ef1 \u00e1n y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng gi\u00e1m s\u00e1t<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Ch\u1ecdn h\u1ed9p \u0111\u1ea5u d\u00e2y khi:<\/h3>\n<ul>\n<li><strong>\u2705 Nhu c\u1ea7u \u0111i d\u00e2y \u0111i\u1ec7n chung<\/strong>\n<ul>\n<li>Trang tr\u00ed nh\u00e0 \u1edf d\u00e2n d\u1ee5ng y\u00eau c\u1ea7u \u0111i d\u00e2y \u1ea9n v\u1edbi c\u00e1c \u0111i\u1ec3m ph\u00e2n nh\u00e1nh an to\u00e0n<\/li>\n<li>Ph\u00e2n ph\u1ed1i \u0111i\u1ec7n t\u00f2a nh\u00e0 th\u01b0\u01a1ng m\u1ea1i<\/li>\n<li>B\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u2705 N\u1ed1i d\u00e2y v\u00e0 b\u1ea3o v\u1ec7 k\u1ebft n\u1ed1i<\/strong>\n<ul>\n<li>Chuy\u1ec3n \u0111\u1ed5i c\u00e1p t\u1eeb \u1ed1ng d\u1eabn sang d\u00e2y h\u1edf<\/li>\n<li>Thay \u0111\u1ed5i c\u1ee1 d\u00e2y ho\u1eb7c s\u1eeda \u0111\u1ed5i \u0111\u1ecbnh tuy\u1ebfn<\/li>\n<li>K\u1ebft n\u1ed1i \u0111i\u1ec7n t\u1ea1m th\u1eddi ho\u1eb7c v\u0129nh vi\u1ec5n<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u2705 \u1ee8ng d\u1ee5ng ti\u1ebft ki\u1ec7m chi ph\u00ed<\/strong>\n<ul>\n<li>Gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec7n chung<\/li>\n<li>C\u00e1c d\u1ef1 \u00e1n d\u00e2n d\u1ee5ng v\u00e0 th\u01b0\u01a1ng m\u1ea1i ti\u00eau chu\u1ea9n<\/li>\n<li>H\u1ec7 th\u1ed1ng \u0111i\u1ec7n n\u0103ng l\u01b0\u1ee3ng kh\u00f4ng t\u00e1i t\u1ea1o<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h2>C\u00e0i \u0110\u1eb7t Th\u1ef1c H\u00e0nh T\u1ed1t Nh\u1ea5t<\/h2>\n<h3>H\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t h\u1ed9p k\u1ebft h\u1ee3p<\/h3>\n<p><strong>L\u1ef1a ch\u1ecdn v\u1ecb tr\u00ed:<\/strong><\/p>\n<ul>\n<li>G\u1eafn tr\u00ean c\u00e1c b\u1ee9c t\u01b0\u1eddng h\u01b0\u1edbng v\u1ec1 ph\u00eda b\u1eafc, n\u01a1i c\u00f3 b\u00f3ng r\u00e2m \u0111\u1ec3 h\u1ea1n ch\u1ebf ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi v\u00e0 gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 b\u00ean trong c\u00e1c th\u00e0nh ph\u1ea7n<\/li>\n<li>\u0110\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn \u0111\u1ec3 b\u1ea3o tr\u00ec v\u00e0 ki\u1ec3m tra<\/li>\n<li>Duy tr\u00ec kho\u1ea3ng h\u1edf th\u00edch h\u1ee3p theo th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t<\/li>\n<\/ul>\n<p><strong>C\u00e2n nh\u1eafc v\u1ec1 k\u00edch th\u01b0\u1edbc:<\/strong><\/p>\n<ul>\n<li>V\u1ecf l\u1edbn h\u01a1n cho ph\u00e9p th\u1ec3 t\u00edch kh\u00f4ng kh\u00ed v\u00e0 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t l\u1edbn h\u01a1n \u0111\u1ec3 l\u00e0m m\u00e1t c\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong \u0111\u1ed3ng th\u1eddi gi\u00fap vi\u1ec7c \u0111i d\u00e2y t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng d\u1ec5 d\u00e0ng h\u01a1n<\/li>\n<li>L\u1eadp k\u1ebf ho\u1ea1ch cho vi\u1ec7c m\u1edf r\u1ed9ng trong t\u01b0\u01a1ng lai ho\u1eb7c c\u00e1c chu\u1ed7i b\u1ed5 sung<\/li>\n<li>Xem x\u00e9t c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu \u0111\u1ecba ph\u01b0\u01a1ng \u0111\u1ec3 qu\u1ea3n l\u00fd nhi\u1ec7t \u0111\u1ed9<\/li>\n<\/ul>\n<h3>H\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t h\u1ed9p \u0111\u1ea5u d\u00e2y<\/h3>\n<p><strong>K\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p:<\/strong><\/p>\n<ul>\n<li>T\u00ednh to\u00e1n th\u1ec3 t\u00edch h\u1ed9p t\u1ed1i thi\u1ec3u b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c y\u00eau c\u1ea7u NEC 314.16 d\u1ef1a tr\u00ean k\u00edch th\u01b0\u1edbc v\u00e0 s\u1ed1 l\u01b0\u1ee3ng d\u00e2y d\u1eabn<\/li>\n<li>Ch\u1eeba \u0111\u1ee7 kh\u00f4ng gian \u0111\u1ec3 thao t\u00e1c d\u00e2y<\/li>\n<li>Tr\u00e1nh l\u00e0m \u0111\u1ea7y h\u1ed9p qu\u00e1 m\u1ee9c \u0111\u1ec3 ng\u0103n ng\u1eeba qu\u00e1 nhi\u1ec7t v\u00e0 nguy c\u01a1 \u0111o\u1ea3n m\u1ea1ch<\/li>\n<\/ul>\n<p><strong>Y\u00eau c\u1ea7u l\u1eafp \u0111\u1eb7t:<\/strong><\/p>\n<ul>\n<li>Trong v\u00e1ch th\u1ea1ch cao v\u00e0 v\u1eadt li\u1ec7u kh\u00f4ng ch\u00e1y, h\u1ed9p c\u00f3 th\u1ec3 th\u1ee5t v\u00e0o 1\/4 inch; ph\u1ea3i b\u1eb1ng ph\u1eb3ng v\u1edbi \u1ed1p g\u1ed7 v\u00e0 c\u00e1c b\u1ec1 m\u1eb7t d\u1ec5 ch\u00e1y<\/li>\n<li>G\u1eafn ch\u1eafc ch\u1eafn \u0111\u1ec3 tr\u00e1nh di chuy\u1ec3n trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng<\/li>\n<li>K\u1eb9p c\u00e1p \u0111\u00fang c\u00e1ch \u0111\u1ec3 tr\u00e1nh l\u00e0m h\u1ecfng d\u00e2y<\/li>\n<\/ul>\n<hr \/>\n<h2>Nh\u1eefng l\u1ed7i c\u00e0i \u0111\u1eb7t th\u01b0\u1eddng g\u1eb7p c\u1ea7n tr\u00e1nh<\/h2>\n<h3>L\u1ed7i nghi\u00eam tr\u1ecdng v\u1edbi h\u1ed9p \u0111\u1ea5u d\u00e2y<\/h3>\n<ul>\n<li><strong>\u274c Th\u1ef1c hi\u1ec7n k\u1ebft n\u1ed1i b\u00ean ngo\u00e0i h\u1ed9p<\/strong> Th\u1ef1c hi\u1ec7n c\u00e1c k\u1ebft n\u1ed1i \u0111i\u1ec7n b\u00ean ngo\u00e0i h\u1ed9p \u0111\u1ea5u d\u00e2y l\u00e0m h\u1ecfng h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n v\u00e0 l\u00e0m t\u0103ng nguy c\u01a1 nhi\u1ec7t v\u00e0 tia l\u1eeda \u0111i\u1ec7n, c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y ra h\u1ecfa ho\u1ea1n<\/li>\n<li><strong>\u274c S\u1eed d\u1ee5ng h\u1ed9p c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf<\/strong> Khi d\u00e2y b\u1ecb nh\u1ed3i nh\u00e9t v\u00e0o kh\u00f4ng gian nh\u1ecf, qu\u00e1 nhi\u1ec7t v\u00e0 \u0111o\u1ea3n m\u1ea1ch c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng x\u1ea3y ra h\u01a1n, g\u00e2y ra nguy c\u01a1 h\u1ecfa ho\u1ea1n<\/li>\n<li><strong>\u274c L\u1eadp K\u1ebf Ho\u1ea1ch Chi\u1ec1u D\u00e0i D\u00e2y D\u1eabn K\u00e9m<\/strong> D\u00e2y d\u1eabn ng\u1eafn g\u00e2y kh\u00f3 kh\u0103n trong k\u1ebft n\u1ed1i v\u00e0 nguy c\u01a1 m\u1ea5t an to\u00e0n \u2013 NEC y\u00eau c\u1ea7u s\u00e1u inch d\u00e2y d\u1eabn t\u1ef1 do t\u1ea1i m\u1ed7i h\u1ed9p \u0111i\u1ec7n<\/li>\n<\/ul>\n<h3>C\u00e1c L\u1ed7i Nghi\u00eam Tr\u1ecdng v\u1edbi H\u1ed9p K\u1ebft H\u1ee3p<\/h3>\n<ul>\n<li><strong>\u274c \u0110\u1ecbnh H\u01b0\u1edbng C\u00e1p Kh\u00f4ng Ch\u00ednh X\u00e1c<\/strong> L\u1eafp \u0111\u1eb7t kh\u00f4ng \u0111\u00fang c\u00e1ch v\u1edbi \u0111\u1ecbnh h\u01b0\u1edbng d\u00e2y d\u01b0\u01a1ng v\u00e0 \u00e2m kh\u00f4ng ch\u00ednh x\u00e1c c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng h\u1ed9p k\u1ebft h\u1ee3p ho\u1eb7c bi\u1ebfn t\u1ea7n<\/li>\n<li><strong>\u274c D\u00e2y D\u1eabn Qu\u00e1 Nh\u1ecf<\/strong> K\u1ebft n\u1ed1i d\u00e2y d\u1eabn qu\u00e1 nh\u1ecf d\u1eabn \u0111\u1ebfn t\u1ed5n th\u1ea5t nhi\u1ec7t qu\u00e1 m\u1ee9c v\u00e0 gi\u1ea3m hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng<\/li>\n<li><strong>\u274c Th\u1ef1c H\u00e0nh Ti\u1ebfp \u0110\u1ea5t K\u00e9m<\/strong> C\u00e1c h\u1ec7 th\u1ed1ng ti\u1ebfp \u0111\u1ea5t k\u00e9m c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn \u0111i\u1ec7n gi\u1eadt ho\u1eb7c h\u1ecfa ho\u1ea1n \u2013 lu\u00f4n tu\u00e2n th\u1ee7 c\u00e1c th\u1ef1c h\u00e0nh ti\u1ebfp \u0111\u1ea5t ch\u00ednh x\u00e1c<\/li>\n<\/ul>\n<hr \/>\n<h2>Khuy\u1ebfn ngh\u1ecb l\u1eafp \u0111\u1eb7t chuy\u00ean nghi\u1ec7p<\/h2>\n<h3>Khi N\u00e0o C\u1ea7n Li\u00ean H\u1ec7 V\u1edbi Th\u1ee3 \u0110i\u1ec7n \u0110\u01b0\u1ee3c C\u1ea5p Ph\u00e9p<\/h3>\n<p><strong>\u0110\u1ed1i v\u1edbi h\u1ed9p k\u1ebft h\u1ee3p:<\/strong><\/p>\n<ul>\n<li>H\u1ec7 th\u1ed1ng DC \u0111i\u1ec7n \u00e1p cao (tr\u00ean 48V)<\/li>\n<li>C\u00e1c l\u1eafp \u0111\u1eb7t n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi \u0111a chu\u1ed7i ph\u1ee9c t\u1ea1p<\/li>\n<li>C\u00e1c d\u1ef1 \u00e1n th\u01b0\u01a1ng m\u1ea1i ho\u1eb7c quy m\u00f4 ti\u1ec7n \u00edch<\/li>\n<li>B\u1ea5t k\u1ef3 c\u00e0i \u0111\u1eb7t c\u1ea7n \u0111i\u1ec7n cho ph\u00e9p<\/li>\n<\/ul>\n<p><strong>\u0110\u1ed1i v\u1edbi h\u1ed9p n\u1ed1i:<\/strong><\/p>\n<ul>\n<li>Khi kh\u00f4ng ch\u1eafc ch\u1eafn v\u1ec1 b\u1ea5t k\u1ef3 kh\u00eda c\u1ea1nh n\u00e0o c\u1ee7a vi\u1ec7c l\u1eafp \u0111\u1eb7t, tu\u00e2n th\u1ee7 quy t\u1eafc ho\u1eb7c y\u00eau c\u1ea7u an to\u00e0n<\/li>\n<li>C\u00f4ng vi\u1ec7c \u0111i\u1ec7n \u1edf nh\u1eefng n\u01a1i nguy hi\u1ec3m<\/li>\n<li>S\u1eeda \u0111\u1ed5i c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n hi\u1ec7n c\u00f3<\/li>\n<li>C\u00e1c t\u00ecnh hu\u1ed1ng \u0111\u1ea5u d\u00e2y ho\u1eb7c kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 ph\u1ee9c t\u1ea1p<\/li>\n<\/ul>\n<blockquote>\n<h3>\ud83d\udca1 M\u1eb9o Chuy\u00ean Gia: L\u1eadp K\u1ebf Ho\u1ea1ch H\u1ec7 Th\u1ed1ng<\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng d\u00e2n d\u1ee5ng c\u00f3 2-3 chu\u1ed7i, h\u1ed9p k\u1ebft h\u1ee3p kh\u00f4ng b\u1eaft bu\u1ed9c theo quy t\u1eafc, nh\u01b0ng ch\u00fang cung c\u1ea5p c\u00e1c l\u1ee3i \u00edch ng\u1eaft k\u1ebft n\u1ed1i v\u00e0 b\u1ea3o tr\u00ec t\u1eadp trung c\u00f3 gi\u00e1 tr\u1ecb, bi\u1ec7n minh cho kho\u1ea3n \u0111\u1ea7u t\u01b0<\/p><\/blockquote>\n<hr \/>\n<h2>Nh\u1eefng C\u00e2u H\u1ecfi Th\u01b0\u1eddng<\/h2>\n<h3>\u0110i\u1ec1u g\u00ec l\u00e0m cho h\u1ed9p k\u1ebft h\u1ee3p kh\u00e1c v\u1edbi h\u1ed9p n\u1ed1i th\u00f4ng th\u01b0\u1eddng?<\/h3>\n<p>H\u1ed9p k\u1ebft h\u1ee3p ph\u1ee5c v\u1ee5 ba m\u1ee5c \u0111\u00edch c\u1ee5 th\u1ec3: chuy\u1ec3n \u0111\u1ed5i sang \u1ed1ng d\u1eabn, b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng th\u00f4ng qua c\u1ea7u ch\u00ec ho\u1eb7c b\u1ed9 ng\u1eaft m\u1ea1ch v\u00e0 k\u1ebft h\u1ee3p c\u00e1c chu\u1ed7i th\u00e0nh c\u1ea5u h\u00ecnh song song. H\u1ed9p n\u1ed1i ch\u1ec9 cung c\u1ea5p ch\u1ee9c n\u0103ng chuy\u1ec3n \u0111\u1ed5i sang \u1ed1ng d\u1eabn.<\/p>\n<h3>T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng h\u1ed9p n\u1ed1i thay v\u00ec h\u1ed9p k\u1ebft h\u1ee3p cho c\u00e1c t\u1ea5m pin m\u1eb7t tr\u1eddi kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng, h\u1ed9p n\u1ed1i kh\u00f4ng c\u00f3 c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee5 th\u1ec3 c\u1ea7n thi\u1ebft \u0111\u1ec3 k\u1ebft h\u1ee3p c\u00e1c \u0111\u1ea7u v\u00e0o ngu\u1ed3n m\u1ed9t c\u00e1ch an to\u00e0n. S\u1eed d\u1ee5ng c\u00e1c h\u1ed9p kh\u00f4ng ph\u00f9 h\u1ee3p s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3 h\u1ec7 th\u1ed1ng trong c\u00e1c \u1ee9ng d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi.<\/p>\n<h3>T\u00f4i c\u1ea7n h\u1ed9p n\u1ed1i k\u00edch th\u01b0\u1edbc n\u00e0o cho d\u1ef1 \u00e1n c\u1ee7a m\u00ecnh?<\/h3>\n<p>T\u00ednh to\u00e1n th\u1ec3 t\u00edch t\u1ed1i thi\u1ec3u theo y\u00eau c\u1ea7u c\u1ee7a NEC: \u0111\u1ed1i v\u1edbi d\u00e2y 14 AWG, cho ph\u00e9p 2 inch kh\u1ed1i tr\u00ean m\u1ed7i d\u00e2y d\u1eabn, c\u1ed9ng v\u1edbi 4 inch kh\u1ed1i tr\u00ean m\u1ed7i thi\u1ebft b\u1ecb, c\u1ed9ng v\u1edbi 2 inch kh\u1ed1i cho t\u1ea5t c\u1ea3 c\u00e1c d\u00e2y n\u1ed1i \u0111\u1ea5t k\u1ebft h\u1ee3p.<\/p>\n<h3>H\u1ed9p n\u1ed1i c\u00f3 b\u1eaft bu\u1ed9c ph\u1ea3i d\u1ec5 ti\u1ebfp c\u1eadn kh\u00f4ng?<\/h3>\n<p>C\u00f3, NEC 314.29 y\u00eau c\u1ea7u t\u1ea5t c\u1ea3 c\u00e1c h\u1ed9p ph\u1ea3i d\u1ec5 ti\u1ebfp c\u1eadn. B\u1ea1n kh\u00f4ng th\u1ec3 che gi\u1ea5u c\u00e1c h\u1ed9p n\u1ed1i trong t\u01b0\u1eddng, tr\u1ea7n nh\u00e0 ho\u1eb7c c\u00e1c khu v\u1ef1c kh\u00f4ng th\u1ec3 ti\u1ebfp c\u1eadn.<\/p>\n<h3>Khi n\u00e0o c\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi y\u00eau c\u1ea7u h\u1ed9p k\u1ebft h\u1ee3p?<\/h3>\n<p>H\u1ed9p k\u1ebft h\u1ee3p tr\u1edf n\u00ean c\u1ea7n thi\u1ebft cho c\u00e1c d\u1ef1 \u00e1n l\u1edbn h\u01a1n v\u1edbi b\u1ed1n chu\u1ed7i tr\u1edf l\u00ean, m\u1eb7c d\u00f9 ch\u00fang mang l\u1ea1i l\u1ee3i \u00edch trong c\u00e1c l\u1eafp \u0111\u1eb7t d\u00e2n d\u1ee5ng nh\u1ecf h\u01a1n \u0111\u1ec3 b\u1ea3o tr\u00ec v\u00e0 ng\u1eaft k\u1ebft n\u1ed1i t\u1eadp trung.<\/p>\n<h3>T\u00f4i n\u00ean ch\u1ecdn m\u1ee9c b\u1ea3o v\u1ec7 n\u00e0o cho c\u00e1c l\u1eafp \u0111\u1eb7t ngo\u00e0i tr\u1eddi?<\/h3>\n<p>Ch\u1ecdn h\u1ed9p n\u1ed1i c\u00f3 x\u1ebfp h\u1ea1ng IP54 tr\u1edf l\u00ean cho c\u00e1c khu v\u1ef1c \u1ea9m \u01b0\u1edbt, trong khi h\u1ed9p k\u1ebft h\u1ee3p ph\u1ea3i c\u00f3 IP65 tr\u1edf l\u00ean \u0111\u1ec3 ng\u0103n n\u01b0\u1edbc m\u01b0a v\u00e0 b\u1ee5i x\u00e2m nh\u1eadp.<\/p>\n<hr \/>\n<h2>\u0110i\u1ec3m M\u1ea5u Ch\u1ed1t: \u0110\u01b0a Ra L\u1ef1a Ch\u1ecdn \u0110\u00fang \u0110\u1eafn<\/h2>\n<p><strong>\u0110\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o y\u00eau c\u1ea7u k\u1ebft h\u1ee3p ngu\u1ed3n \u0111i\u1ec7n v\u1edbi b\u1ea3o v\u1ec7 an to\u00e0n t\u00edch h\u1ee3p, h\u00e3y ch\u1ecdn h\u1ed9p k\u1ebft h\u1ee3p. \u0110\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n th\u00f4ng th\u01b0\u1eddng c\u1ea7n b\u1ea3o v\u1ec7 k\u1ebft n\u1ed1i m\u00e0 kh\u00f4ng c\u1ea7n k\u1ebft h\u1ee3p ngu\u1ed3n \u0111i\u1ec7n, h\u00e3y ch\u1ecdn h\u1ed9p n\u1ed1i.<\/strong><\/p>\n<p>\u0110i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i kh\u1edbp thi\u1ebft b\u1ecb v\u1edbi c\u00e1c y\u00eau c\u1ea7u \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3, \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng v\u00e0 nhu c\u1ea7u tu\u00e2n th\u1ee7 quy t\u1eafc \u0111i\u1ec7n c\u1ee7a b\u1ea1n. Khi nghi ng\u1edd, h\u00e3y tham kh\u1ea3o \u00fd ki\u1ebfn c\u1ee7a th\u1ee3 \u0111i\u1ec7n \u0111\u01b0\u1ee3c c\u1ea5p ph\u00e9p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 tu\u00e2n th\u1ee7 quy t\u1eafc.<\/p>\n<p><strong>H\u00e3y nh\u1edb<\/strong>: C\u1ea3 hai lo\u1ea1i h\u1ed9p \u0111i\u1ec7n \u0111\u1ec1u l\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n an to\u00e0n quan tr\u1ecdng. L\u1ef1a ch\u1ecdn, l\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec \u0111\u00fang c\u00e1ch b\u1ea3o v\u1ec7 c\u1ea3 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n v\u00e0 s\u1ef1 an to\u00e0n c\u00e1 nh\u00e2n c\u1ee7a b\u1ea1n. Kh\u00f4ng bao gi\u1edd th\u1ecfa hi\u1ec7p v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng ho\u1eb7c tu\u00e2n th\u1ee7 quy t\u1eafc \u0111\u1ec3 ti\u1ebft ki\u1ec7m chi ph\u00ed.<\/p>\n<h2>Li\u00ean quan<\/h2>\n<p><a href=\"https:\/\/test.viox.com\/vi\/what-is-an-ac-junction-box\/\">H\u1ed9p n\u1ed1i AC l\u00e0 g\u00ec<\/a><\/p>\n<p><a href=\"https:\/\/test.viox.com\/vi\/distribution-boxes-vs-combiner-boxes-key-differences-and-uses-in-electrical-systems\/\">H\u1ed9p ph\u00e2n ph\u1ed1i so v\u1edbi h\u1ed9p k\u1ebft h\u1ee3p: S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh v\u00e0 \u1ee9ng d\u1ee5ng trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n<\/a><\/p>\n<p><a href=\"https:\/\/test.viox.com\/vi\/the-ultimate-guide-to-solar-combiner-boxes-from-basics-to-advanced-technologies\/\">H\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 h\u1ed9p k\u1ebft h\u1ee3p n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi: T\u1eeb c\u00f4ng ngh\u1ec7 c\u01a1 b\u1ea3n \u0111\u1ebfn c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn<\/a><\/p>\n<p><a href=\"https:\/\/test.viox.com\/vi\/understanding-electrical-junction-box-types\/\">Hi\u1ec3u v\u1ec1 c\u00e1c lo\u1ea1i h\u1ed9p n\u1ed1i \u0111i\u1ec7n<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>The primary difference between a combiner box and a junction box is their function: a combiner box combines multiple electrical inputs from sources like solar panels into a single output with built-in safety protection, while a junction box simply protects wire connections and splices without combining power sources. Understanding this distinction is crucial for electrical [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":18522,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-18519","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/18519","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/comments?post=18519"}],"version-history":[{"count":0,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/18519\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/18522"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=18519"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=18519"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=18519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}