{"id":19323,"date":"2025-10-21T00:39:19","date_gmt":"2025-10-20T16:39:19","guid":{"rendered":"https:\/\/viox.com\/?p=19323"},"modified":"2025-10-21T00:39:21","modified_gmt":"2025-10-20T16:39:21","slug":"what-is-a-pv-combiner-box-and-why-your-solar-system-cant-function-without-one","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/what-is-a-pv-combiner-box-and-why-your-solar-system-cant-function-without-one\/","title":{"rendered":"H\u1ed9p PV Combiner l\u00e0 g\u00ec v\u00e0 T\u1ea1i sao H\u1ec7 th\u1ed1ng N\u0103ng l\u01b0\u1ee3ng M\u1eb7t tr\u1eddi c\u1ee7a B\u1ea1n Kh\u00f4ng Th\u1ec3 Ho\u1ea1t \u0110\u1ed9ng N\u1ebfu Kh\u00f4ng C\u00f3 N\u00f3"},"content":{"rendered":"<div class=\"product-intro\">\n<h2>C\u01a1n \u00c1c M\u1ed9ng Qu\u1ea3n L\u00fd C\u00e1p $15.000 M\u00e0 M\u1ecdi Nh\u00e0 L\u1eafp \u0110\u1eb7t \u0110i\u1ec7n M\u1eb7t Tr\u1eddi \u0110\u1ec1u Ph\u1ea3i \u0110\u1ed1i M\u1eb7t<\/h2>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-19193\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/09\/check-solar-panel.webp\" alt=\"check solar panel\" width=\"1398\" height=\"814\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/09\/check-solar-panel.webp 1398w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/09\/check-solar-panel-300x175.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/09\/check-solar-panel-1024x596.webp 1024w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/09\/check-solar-panel-768x447.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/09\/check-solar-panel-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/09\/check-solar-panel-600x349.webp 600w\" sizes=\"(max-width: 1398px) 100vw, 1398px\" \/><\/p>\n<p>H\u00e3y h\u00ecnh dung: B\u1ea1n v\u1eeba l\u1eafp \u0111\u1eb7t m\u1ed9t h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi th\u01b0\u01a1ng m\u1ea1i 100kW v\u1edbi 20 chu\u1ed7i t\u1ea5m pin. M\u1ed7i chu\u1ed7i c\u1ea7n hai d\u00e2y d\u1eabn ch\u1ea1y ng\u01b0\u1ee3c v\u1ec1 b\u1ed9 bi\u1ebfn t\u1ea7n\u2014t\u1ee9c l\u00e0 <strong>40 s\u1ee3i c\u00e1p ri\u00eang l\u1ebb<\/strong> lu\u1ed3n l\u00e1ch tr\u00ean m\u00e1i nh\u00e0, qua \u1ed1ng d\u1eabn v\u00e0 v\u00e0o ph\u00f2ng \u0111i\u1ec7n c\u1ee7a b\u1ea1n. Chi ph\u00ed v\u1eadt li\u1ec7u c\u1ee7a b\u1ea1n v\u1eeba t\u0103ng v\u1ecdt th\u00eam $8.000. Th\u1eddi gian l\u1eafp \u0111\u1eb7t c\u1ee7a b\u1ea1n t\u0103ng g\u1ea5p \u0111\u00f4i. V\u00e0 khi Chu\u1ed7i 14 b\u1eaft \u0111\u1ea7u ho\u1ea1t \u0111\u1ed9ng k\u00e9m hi\u1ec7u qu\u1ea3 sau s\u00e1u th\u00e1ng, th\u1eadt kh\u00f3 \u0111\u1ec3 t\u00ecm ra d\u00e2y n\u00e0o trong s\u1ed1 40 d\u00e2y \u0111\u00f3 l\u00e0 th\u1ee7 ph\u1ea1m m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/p>\n<p>\u0110\u00e2y l\u00e0 th\u1ef1c t\u1ebf m\u00e0 c\u00e1c nh\u00e0 l\u1eafp \u0111\u1eb7t \u0111i\u1ec7n m\u1eb7t tr\u1eddi ph\u1ea3i \u0111\u1ed1i m\u1eb7t tr\u01b0\u1edbc khi h\u1ed9p k\u1ebft h\u1ee3p PV tr\u1edf th\u00e0nh th\u00f4ng l\u1ec7 ti\u00eau chu\u1ea9n. T\u1ec7 h\u01a1n n\u1eefa, n\u1ebfu kh\u00f4ng c\u00f3 s\u1ef1 h\u1ee3p nh\u1ea5t v\u00e0 b\u1ea3o v\u1ec7 th\u00edch h\u1ee3p, m\u1ed9t chu\u1ed7i b\u1ecb l\u1ed7i duy nh\u1ea5t c\u00f3 th\u1ec3 t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n ng\u01b0\u1ee3c l\u00e0m h\u1ecfng c\u00e1c t\u1ea5m pin kh\u1ecfe m\u1ea1nh, bi\u1ebfn m\u1ed9t v\u1ea5n \u0111\u1ec1 nh\u1ecf th\u00e0nh s\u1ef1 c\u1ed1 tr\u00ean to\u00e0n h\u1ec7 th\u1ed1ng.<\/p>\n<h2>T\u1ea1i Sao Vi\u1ec7c \u0110i D\u00e2y Tr\u1ef1c Ti\u1ebfp \u0110\u1ebfn Bi\u1ebfn T\u1ea7n T\u1ea1o Ra C\u00e1c V\u1ea5n \u0110\u1ec1 D\u00e2y Chuy\u1ec1n<\/h2>\n<p>V\u1ea5n \u0111\u1ec1 c\u01a1 b\u1ea3n r\u1ea5t \u0111\u01a1n gi\u1ea3n: <strong>t\u1ea5m pin m\u1eb7t tr\u1eddi l\u00e0 c\u00e1c ngu\u1ed3n d\u00f2ng \u0111i\u1ec7n song song<\/strong>. Khi b\u1ea1n k\u1ebft n\u1ed1i nhi\u1ec1u chu\u1ed7i tr\u1ef1c ti\u1ebfp v\u1edbi b\u1ed9 bi\u1ebfn t\u1ea7n m\u00e0 kh\u00f4ng c\u00f3 b\u1ea3o v\u1ec7 trung gian, b\u1ea1n t\u1ea1o ra ba l\u1ed7 h\u1ed5ng nghi\u00eam tr\u1ecdng:<\/p>\n<ul>\n<li><strong>T\u1ed5n Th\u01b0\u01a1ng Do D\u00f2ng \u0110i\u1ec7n Ng\u01b0\u1ee3c<\/strong>: N\u1ebfu m\u1ed9t chu\u1ed7i b\u1ecb che b\u00f3ng ho\u1eb7c b\u1ecb l\u1ed7i, d\u00f2ng \u0111i\u1ec7n t\u1eeb c\u00e1c chu\u1ed7i kh\u1ecfe m\u1ea1nh c\u00f3 th\u1ec3 ch\u1ea3y ng\u01b0\u1ee3c v\u00e0o chu\u1ed7i y\u1ebfu h\u01a1n, l\u00e0m qu\u00e1 nhi\u1ec7t d\u00e2y d\u1eabn v\u00e0 l\u00e0m h\u1ecfng c\u00e1c t\u1ebf b\u00e0o. N\u1ebfu kh\u00f4ng c\u00f3 b\u1ea3o v\u1ec7 \u1edf c\u1ea5p \u0111\u1ed9 chu\u1ed7i, d\u00f2ng \u0111i\u1ec7n ng\u01b0\u1ee3c n\u00e0y c\u00f3 th\u1ec3 ph\u00e1 h\u1ee7y to\u00e0n b\u1ed9 chu\u1ed7i tr\u01b0\u1edbc khi b\u1ea1n nh\u1eadn th\u1ea5y v\u1ea5n \u0111\u1ec1.<\/li>\n<li><strong>Kh\u00f4ng Th\u1ec3 C\u00f4 L\u1eadp L\u1ed7i<\/strong>: Trong h\u1ec7 th\u1ed1ng \u0111i d\u00e2y tr\u1ef1c ti\u1ebfp, vi\u1ec7c kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 \u0111\u00f2i h\u1ecfi ph\u1ea3i t\u1eaft to\u00e0n b\u1ed9 m\u1ea3ng. Kh\u00f4ng c\u00f3 c\u00e1ch n\u00e0o \u0111\u1ec3 c\u00f4 l\u1eadp c\u00e1c chu\u1ed7i ri\u00eang l\u1ebb \u0111\u1ec3 ki\u1ec3m tra, bi\u1ebfn vi\u1ec7c ch\u1ea9n \u0111o\u00e1n 15 ph\u00fat th\u00e0nh m\u1ed9t th\u1eed th\u00e1ch n\u1eeda ng\u00e0y v\u1edbi vi\u1ec7c th\u1eed v\u00e0 sai t\u1ed1n k\u00e9m.<\/li>\n<li><strong>S\u1ee5t \u00c1p v\u00e0 T\u1ed5n Th\u1ea5t Hi\u1ec7u Su\u1ea5t<\/strong>: C\u00e1c \u0111\u01b0\u1eddng d\u00e2y d\u00e0i t\u1eeb c\u00e1c chu\u1ed7i ri\u00eang l\u1ebb \u0111\u1ebfn b\u1ed9 bi\u1ebfn t\u1ea7n t\u1ea1o ra t\u1ed5n th\u1ea5t \u0111i\u1ec7n tr\u1edf \u0111\u00e1ng k\u1ec3. Tr\u00ean m\u1ed9t \u0111\u01b0\u1eddng c\u00e1p d\u00e0i 150 foot v\u1edbi d\u00f2ng \u0111i\u1ec7n 10A, b\u1ea1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng m\u1ea5t 2-3% n\u0103ng l\u01b0\u1ee3ng t\u1ea1o ra th\u00e0nh nhi\u1ec7t\u2014m\u1ed7i ng\u00e0y trong 25 n\u0103m.<\/li>\n<\/ul>\n<p>Ti\u00eau chu\u1ea9n \u0111i\u1ec7n nh\u1eadn ra nh\u1eefng r\u1ee7i ro n\u00e0y, \u0111\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao \u0110i\u1ec1u 690.9 c\u1ee7a NEC \u0111\u1eb7c bi\u1ec7t \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c y\u00eau c\u1ea7u v\u1ec1 b\u1ed9 k\u1ebft h\u1ee3p cho h\u1ec7 th\u1ed1ng PV.<\/p>\n<h2>Gi\u1ea3i Ph\u00e1p: \u201cTh\u00e1p \u0110i\u1ec1u Khi\u1ec3n Kh\u00f4ng L\u01b0u\u201d C\u1ee7a M\u1ea3ng \u0110i\u1ec7n M\u1eb7t Tr\u1eddi C\u1ee7a B\u1ea1n\u201d<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-10076\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/11\/PV-Combiner-Box.webp\" alt=\"\" width=\"800\" height=\"600\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2024\/11\/PV-Combiner-Box.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/11\/PV-Combiner-Box-300x225.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/11\/PV-Combiner-Box-768x576.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/11\/PV-Combiner-Box-16x12.webp 16w, https:\/\/test.viox.com\/wp-content\/uploads\/2024\/11\/PV-Combiner-Box-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>M\u1ed9t <a href=\"https:\/\/test.viox.com\/vi\/san-pham\/viox-vcb-f4-1-dc-pv-combiner-box\/\"><strong>H\u1ed9p k\u1ebft h\u1ee3p PV<\/strong><\/a> l\u00e0 trung t\u00e2m h\u1ee3p nh\u1ea5t, b\u1ea3o v\u1ec7 v\u00e0 qu\u1ea3n l\u00fd d\u00f2ng \u0111i\u1ec7n t\u1eeb nhi\u1ec1u chu\u1ed7i t\u1ea5m pin m\u1eb7t tr\u1eddi tr\u01b0\u1edbc khi g\u1eedi \u0111\u1ebfn b\u1ed9 bi\u1ebfn t\u1ea7n. H\u00e3y coi n\u00f3 nh\u01b0 l\u00e0 <strong>th\u00e1p \u0111i\u1ec1u khi\u1ec3n kh\u00f4ng l\u01b0u cho m\u1ea3ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi c\u1ee7a b\u1ea1n<\/strong>\u2014n\u00f3 \u0111i\u1ec1u h\u01b0\u1edbng n\u0103ng l\u01b0\u1ee3ng \u0111\u1ebfn t\u1eeb nhi\u1ec1u ngu\u1ed3n (c\u00e1c chu\u1ed7i t\u1ea5m pin c\u1ee7a b\u1ea1n), ng\u0103n ng\u1eeba va ch\u1ea1m tr\u00ean kh\u00f4ng (d\u00f2ng \u0111i\u1ec7n ng\u01b0\u1ee3c v\u00e0 l\u1ed7i) v\u00e0 \u0111\u1ea3m b\u1ea3o d\u00f2ng ch\u1ea3y tr\u01a1n tru, hi\u1ec7u qu\u1ea3 \u0111\u1ebfn \u0111\u00edch cu\u1ed1i c\u00f9ng (b\u1ed9 bi\u1ebfn t\u1ea7n c\u1ee7a b\u1ea1n).<\/p>\n<p>\u0110\u00e2y l\u00e0 nh\u1eefng g\u00ec l\u00e0m cho m\u1ed9t h\u1ed9p k\u1ebft h\u1ee3p hi\u1ec7n \u0111\u1ea1i tr\u1edf n\u00ean kh\u00f4ng th\u1ec3 thi\u1ebfu:<\/p>\n<ul>\n<li>Thay v\u00ec 40 d\u00e2y d\u1eabn ri\u00eang l\u1ebb ch\u1ea1y \u0111\u1ebfn b\u1ed9 bi\u1ebfn t\u1ea7n c\u1ee7a b\u1ea1n, b\u1ea1n ch\u1ec9 c\u00f3 <strong>hai c\u00e1p DC h\u1ee3p nh\u1ea5t<\/strong>. Chi ph\u00ed v\u1eadt li\u1ec7u gi\u1ea3m 60-80%. Th\u1eddi gian l\u1eafp \u0111\u1eb7t gi\u1ea3m m\u1ed9t n\u1eeda. V\u00e0 quan tr\u1ecdng nh\u1ea5t, gi\u1edd \u0111\u00e2y b\u1ea1n c\u00f3 m\u1ed9t \u0111i\u1ec3m duy nh\u1ea5t, d\u1ec5 ti\u1ebfp c\u1eadn \u0111\u1ec3 theo d\u00f5i, b\u1ea3o v\u1ec7 v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 m\u1ecdi chu\u1ed7i trong m\u1ea3ng c\u1ee7a b\u1ea1n.<\/li>\n<\/ul>\n<blockquote><p><strong>\u0110i\u1ec3m ch\u00ednh<\/strong>: <em>H\u1ed9p k\u1ebft h\u1ee3p kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t \u0111i\u1ec3m n\u1ed1i ti\u1ebft ki\u1ec7m chi ph\u00ed\u2014n\u00f3 c\u00f2n l\u00e0 tuy\u1ebfn ph\u00f2ng th\u1ee7 \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n ch\u1ed1ng l\u1ea1i ba k\u1ebb gi\u1ebft ng\u01b0\u1eddi th\u1ea7m l\u1eb7ng c\u1ee7a h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi: t\u1ed5n th\u01b0\u01a1ng do d\u00f2ng \u0111i\u1ec7n ng\u01b0\u1ee3c, l\u1ed7i th\u00e1c \u0111\u1ed5 v\u00e0 t\u1ed5n th\u1ea5t hi\u1ec7u su\u1ea5t m\u00e3n t\u00ednh.<\/em><\/p><\/blockquote>\n<h2>H\u01b0\u1edbng D\u1eabn Ho\u00e0n Ch\u1ec9nh \u0110\u1ec3 L\u1ef1a Ch\u1ecdn v\u00e0 L\u1eafp \u0110\u1eb7t H\u1ed9p K\u1ebft H\u1ee3p PV<\/h2>\n<h3>B\u01b0\u1edbc 1: T\u00ednh To\u00e1n C\u00e1c Y\u00eau C\u1ea7u H\u1ec7 Th\u1ed1ng C\u1ee7a B\u1ea1n\u2014Ph\u00e9p To\u00e1n Ng\u0103n Ng\u1eeba S\u1ef1 C\u1ed1<\/h3>\n<p>Tr\u01b0\u1edbc khi b\u1ea1n xem danh m\u1ee5c s\u1ea3n ph\u1ea9m, b\u1ea1n c\u1ea7n ba con s\u1ed1 quan tr\u1ecdng. T\u00ednh sai b\u1ea5t k\u1ef3 con s\u1ed1 n\u00e0o trong s\u1ed1 n\u00e0y, b\u1ea1n s\u1ebd b\u1ecb qu\u00e1 c\u1ee1 (l\u00e3ng ph\u00ed ti\u1ec1n b\u1ea1c) ho\u1eb7c thi\u1ebfu c\u1ee1 (t\u1ea1o ra nguy c\u01a1 h\u1ecfa ho\u1ea1n).<\/p>\n<ul>\n<li><strong>S\u1ed1 L\u01b0\u1ee3ng v\u00e0 C\u1ea5u H\u00ecnh Chu\u1ed7i<\/strong>: \u0110\u1ebfm t\u1ed5ng s\u1ed1 chu\u1ed7i c\u1ee7a b\u1ea1n. M\u1ed9t h\u1ed9p k\u1ebft h\u1ee3p ti\u00eau chu\u1ea9n x\u1eed l\u00fd 4-16 chu\u1ed7i, v\u1edbi m\u1ed7i chu\u1ed7i c\u00f3 \u0111\u1ea7u v\u00e0o \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1eb1ng c\u1ea7u ch\u00ec ri\u00eang. \u0110\u1ed1i v\u1edbi v\u00ed d\u1ee5 100kW c\u1ee7a ch\u00fang ta v\u1edbi 20 chu\u1ed7i, b\u1ea1n s\u1ebd c\u1ea7n m\u1ed9t b\u1ed9 k\u1ebft h\u1ee3p 24 v\u1ecb tr\u00ed ho\u1eb7c hai b\u1ed9 12 v\u1ecb tr\u00ed.<\/li>\n<li><strong>\u0110i\u1ec7n \u00e1p h\u1ec7 th\u1ed1ng t\u1ed1i \u0111a<\/strong>: \u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y b\u1edfi th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a t\u1ea5m pin v\u00e0 c\u1ea5u h\u00ecnh n\u1ed1i ti\u1ebfp c\u1ee7a b\u1ea1n. C\u00e1c h\u1ec7 th\u1ed1ng hi\u1ec7n \u0111\u1ea1i ho\u1ea1t \u0111\u1ed9ng \u1edf 600V, 1000V, 1200V ho\u1eb7c th\u1eadm ch\u00ed 1500V DC. \u0110\u1ecbnh m\u1ee9c \u0111i\u1ec7n \u00e1p c\u1ee7a h\u1ed9p k\u1ebft h\u1ee3p c\u1ee7a b\u1ea1n ph\u1ea3i b\u1eb1ng ho\u1eb7c v\u01b0\u1ee3t qu\u00e1 \u0111i\u1ec7n \u00e1p h\u1edf m\u1ea1ch t\u1ed1i \u0111a c\u1ee7a m\u1ea3ng c\u1ee7a b\u1ea1n. <strong>M\u1eb9o chuy\u00ean nghi\u1ec7p<\/strong>: Lu\u00f4n ki\u1ec3m tra VOC (\u0111i\u1ec7n \u00e1p h\u1edf m\u1ea1ch) \u1edf nhi\u1ec7t \u0111\u1ed9 d\u1ef1 ki\u1ebfn th\u1ea5p nh\u1ea5t\u2014th\u1eddi ti\u1ebft l\u1ea1nh l\u00e0m t\u0103ng \u0111i\u1ec7n \u00e1p v\u00e0 h\u1ed9p k\u1ebft h\u1ee3p c\u00f3 k\u00edch th\u01b0\u1edbc kh\u00f4ng ph\u00f9 h\u1ee3p s\u1ebd tr\u1edf th\u00e0nh vi ph\u1ea1m quy t\u1eafc v\u00e0 nguy c\u01a1 an to\u00e0n.<\/li>\n<li><strong>\u0110\u1ecbnh M\u1ee9c D\u00f2ng \u0110i\u1ec7n Chu\u1ed7i<\/strong>: M\u1ed7i chu\u1ed7i th\u01b0\u1eddng t\u1ea1o ra 8-15A t\u00f9y thu\u1ed9c v\u00e0o th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a t\u1ea5m pin. \u0110\u00e2y l\u00e0 ph\u00e9p t\u00ednh quan tr\u1ecdng m\u00e0 h\u1ea7u h\u1ebft c\u00e1c nh\u00e0 l\u1eafp \u0111\u1eb7t b\u1ecf l\u1ee1: <strong>\u0110\u1ecbnh m\u1ee9c c\u1ea7u ch\u00ec c\u1ee7a b\u1ea1n ph\u1ea3i l\u00e0 125-156% d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch (ISC) c\u1ee7a chu\u1ed7i<\/strong>. \u0110\u1ed1i v\u1edbi m\u1ed9t chu\u1ed7i c\u00f3 10A ISC, b\u1ea1n c\u1ea7n c\u1ea7u ch\u00ec 12-15A. S\u1eed d\u1ee5ng c\u1ea7u ch\u00ec 10A v\u00e0 b\u1ea1n s\u1ebd g\u1eb7p ph\u1ea3i t\u00ecnh tr\u1ea1ng v\u1ea5p kh\u00f3 ch\u1ecbu v\u00e0o nh\u1eefng ng\u00e0y n\u1eafng khi d\u00f2ng \u0111i\u1ec7n c\u1ee7a t\u1ea5m pin v\u01b0\u1ee3t qu\u00e1 mong \u0111\u1ee3i. S\u1eed d\u1ee5ng c\u1ea7u ch\u00ec 20A v\u00e0 b\u1ea1n \u0111\u00e3 m\u1ea5t ho\u00e0n to\u00e0n kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng.<\/li>\n<\/ul>\n<p><strong>C\u00f4ng Th\u1ee9c<\/strong>:<\/p>\n<ul>\n<li>T\u1ed5ng d\u00f2ng \u0111i\u1ec7n k\u1ebft h\u1ee3p = (S\u1ed1 l\u01b0\u1ee3ng chu\u1ed7i) \u00d7 (Chu\u1ed7i ISC) \u00d7 1,25 (h\u1ec7 s\u1ed1 an to\u00e0n)<\/li>\n<li>V\u00ed d\u1ee5: 20 chu\u1ed7i \u00d7 10A \u00d7 1,25 = \u0110\u1ecbnh m\u1ee9c thanh c\u00e1i t\u1ed1i thi\u1ec3u 250A<\/li>\n<\/ul>\n<h3>B\u01b0\u1edbc 2: Gh\u00e9p C\u00e1c Thi\u1ebft B\u1ecb B\u1ea3o V\u1ec7 V\u1edbi \u0110\u1eb7c T\u00ednh Chu\u1ed7i\u2014Kh\u00f4ng Ch\u1ec9 \u0110\u01a1n Thu\u1ea7n L\u00e0 \u201cTh\u00eam C\u1ea7u Ch\u00ec\u201d<\/h3>\n<p>C\u00e1c th\u00e0nh ph\u1ea7n b\u1ea3o v\u1ec7 b\u00ean trong h\u1ed9p k\u1ebft h\u1ee3p c\u1ee7a b\u1ea1n l\u00e0 nh\u1eefng g\u00ec ph\u00e2n bi\u1ec7t m\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u00e1ng tin c\u1eady v\u1edbi m\u1ed9t c\u01a1n \u00e1c m\u1ed9ng b\u1ea3o tr\u00ec. \u0110\u00e2y l\u00e0 c\u00e1ch ch\u1ec9 \u0111\u1ecbnh t\u1eebng th\u00e0nh ph\u1ea7n m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c:<\/p>\n<ul>\n<li><strong>C\u1ea7u Ch\u00ec DC\u2014Ch\u00ednh S\u00e1ch B\u1ea3o Hi\u1ec3m C\u1ea5p Chu\u1ed7i C\u1ee7a B\u1ea1n<\/strong>: M\u1ed7i chu\u1ed7i c\u1ea7n c\u1ea7u ch\u00ec ri\u00eang c\u00f3 k\u00edch th\u01b0\u1edbc \u0111\u1ec3 b\u1ea3o v\u1ec7 d\u00e2y d\u1eabn v\u00e0 ng\u0103n ng\u1eeba t\u1ed5n th\u01b0\u01a1ng do d\u00f2ng \u0111i\u1ec7n ng\u01b0\u1ee3c. Nh\u01b0ng \u0111\u00e2y l\u00e0 nh\u1eefng g\u00ec c\u00e1c b\u1ea3ng d\u1eef li\u1ec7u kh\u00f4ng cho b\u1ea1n bi\u1ebft: <strong>C\u1ea7u ch\u00ec DC ho\u1ea1t \u0111\u1ed9ng kh\u00e1c v\u1edbi c\u1ea7u ch\u00ec AC<\/strong>. H\u1ed3 quang DC kh\u00f4ng t\u1ef1 d\u1eadp t\u1eaft t\u1ea1i \u0111i\u1ec3m giao nhau b\u1eb1ng kh\u00f4ng nh\u01b0 AC, v\u00ec v\u1eady b\u1ea1n ph\u1ea3i s\u1eed d\u1ee5ng c\u1ea7u ch\u00ec \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 \u0111\u1eb7c bi\u1ec7t cho \u0111i\u1ec7n \u00e1p DC v\u00e0 \u0111\u01b0\u1ee3c trang b\u1ecb kh\u1ea3 n\u0103ng d\u1eadp h\u1ed3 quang. T\u00ecm c\u00e1c x\u1ebfp h\u1ea1ng nh\u01b0 \u201c1000Vdc gPV\u201d (quang \u0111i\u1ec7n m\u1ee5c \u0111\u00edch chung) tr\u00ean th\u00e2n c\u1ea7u ch\u00ec. S\u1eed d\u1ee5ng c\u1ea7u ch\u00ec AC ti\u00eau chu\u1ea9n trong \u1ee9ng d\u1ee5ng DC l\u00e0 vi ph\u1ea1m quy t\u1eafc v\u00e0 l\u00e0 m\u1ed9t nguy c\u01a1 h\u1ecfa ho\u1ea1n th\u1ef1c s\u1ef1.<\/li>\n<li><strong><a href=\"https:\/\/test.viox.com\/vi\/mcb\/\">B\u1ed9 ng\u1eaft m\u1ea1ch DC<\/a>\u2014L\u01b0\u1edbi An To\u00e0n C\u00f3 Th\u1ec3 \u0110\u1eb7t L\u1ea1i<\/strong>: Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u1ea7u ch\u00ec, b\u1ed9 ng\u1eaft m\u1ea1ch c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u1ea1i sau m\u1ed9t s\u1ef1 ki\u1ec7n ng\u1eaft, khi\u1ebfn ch\u00fang tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho vi\u1ec7c ki\u1ec3m tra v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1. Tuy nhi\u00ean, b\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u1ecbnh m\u1ee9c DC c\u00f3 gi\u00e1 cao h\u01a1n 3-5 l\u1ea7n so v\u1edbi b\u1ed9 ng\u1eaft m\u1ea1ch AC v\u00ec nh\u1eefng th\u00e1ch th\u1ee9c v\u1ec1 tri\u1ec7t ti\u00eau h\u1ed3 quang. \u0110\u1ed1i v\u1edbi c\u00e1c c\u00e0i \u0111\u1eb7t ti\u1ebft ki\u1ec7m ng\u00e2n s\u00e1ch, h\u00e3y s\u1eed d\u1ee5ng c\u1ea7u ch\u00ec \u0111\u1ec3 b\u1ea3o v\u1ec7 chu\u1ed7i ri\u00eang l\u1ebb v\u00e0 m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch DC duy nh\u1ea5t cho \u0111\u1ea7u ra k\u1ebft h\u1ee3p.<\/li>\n<li><strong><a href=\"https:\/\/test.viox.com\/vi\/spd\/\">Thi\u1ebft b\u1ecb ch\u1ed1ng s\u00e9t lan truy\u1ec1n (SPD)<\/a>\u2014L\u00e1 Ch\u1eafn Ch\u1ed1ng S\u00e9t<\/strong>: \u0110\u1ecbnh m\u1ee9c SPD c\u1ee7a h\u1ed9p k\u1ebft h\u1ee3p c\u1ee7a b\u1ea1n ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec7n \u00e1p h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n: SPD 600V, 1000V, 1200V ho\u1eb7c 1500V. C\u00e1c thi\u1ebft b\u1ecb n\u00e0y k\u1eb9p c\u00e1c gai \u0111i\u1ec7n \u00e1p t\u1eeb s\u00e9t \u0111\u00e1nh (c\u1ea3 tr\u1ef1c ti\u1ebfp v\u00e0 gi\u00e1n ti\u1ebfp) \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00e1c t\u1ea5m pin v\u00e0 b\u1ed9 bi\u1ebfn t\u1ea7n \u0111\u1eaft ti\u1ec1n. <strong>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh<\/strong>: T\u00ecm SPD Lo\u1ea1i 2 v\u1edbi m\u1ee9c b\u1ea3o v\u1ec7 \u0111i\u1ec7n \u00e1p (Up) \u00edt nh\u1ea5t th\u1ea5p h\u01a1n 20% so v\u1edbi \u0111i\u1ec7n \u00e1p ch\u1ecbu xung c\u1ee7a thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n.<\/li>\n<\/ul>\n<blockquote><p><strong>\u0110i\u1ec3m ch\u00ednh<\/strong>: <em>H\u00e3y ngh\u0129 v\u1ec1 vi\u1ec7c \u0111\u1ecbnh c\u1ee1 c\u1ea7u ch\u00ec gi\u1ed1ng nh\u01b0 l\u00e0n \u0111\u01b0\u1eddng cao t\u1ed1c\u2014c\u1ea7u ch\u00ec 10A tr\u00ean chu\u1ed7i 12A gi\u1ed1ng nh\u01b0 \u00e9p m\u1ed9t xe t\u1ea3i giao h\u00e0ng \u0111i qua l\u00e0n \u0111\u01b0\u1eddng d\u00e0nh cho xe m\u00e1y. N\u00f3 ho\u1ea1t \u0111\u1ed9ng cho \u0111\u1ebfn khi n\u00f3 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng. Lu\u00f4n \u0111\u1ecbnh c\u1ee1 \u1edf m\u1ee9c 125-156% c\u1ee7a ISC \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady m\u00e0 kh\u00f4ng b\u1ecb v\u1ea5p kh\u00f3 ch\u1ecbu.<\/em><\/p><\/blockquote>\n<h3>B\u01b0\u1edbc 3: Ch\u1ecdn B\u1ea3o V\u1ec7 M\u00f4i Tr\u01b0\u1eddng Ph\u00f9 H\u1ee3p\u2014V\u00ec N\u01b0\u1edbc Kh\u00f4ng Ph\u1ea3i L\u00e0 K\u1ebb Th\u00f9 Duy Nh\u1ea5t C\u1ee7a B\u1ea1n<\/h3>\n<p>C\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111i\u1ec7n gi\u00fap b\u1ea1n \u0111i \u0111\u01b0\u1ee3c 50% \u0111\u1ebfn h\u1ed9p k\u1ebft h\u1ee3p ph\u00f9 h\u1ee3p. B\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng quy\u1ebft \u0111\u1ecbnh xem h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n k\u00e9o d\u00e0i 5 n\u0103m hay 25 n\u0103m.<\/p>\n<ul>\n<li><strong>X\u1ebfp H\u1ea1ng IP\u2014Tuy\u1ebfn Ph\u00f2ng Th\u1ee7 \u0110\u1ea7u Ti\u00ean C\u1ee7a B\u1ea1n<\/strong>: \u0110\u1ed1i v\u1edbi c\u00e1c c\u00e0i \u0111\u1eb7t ngo\u00e0i tr\u1eddi, <strong>IP65 l\u00e0 m\u1ee9c t\u1ed1i thi\u1ec3u tuy\u1ec7t \u0111\u1ed1i<\/strong>, cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i s\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a b\u1ee5i v\u00e0 tia n\u01b0\u1edbc \u00e1p su\u1ea5t th\u1ea5p. \u0110\u1ed1i v\u1edbi c\u00e1c c\u00e0i \u0111\u1eb7t tr\u00ean m\u00e1i nh\u00e0 \u1edf nh\u1eefng khu v\u1ef1c c\u00f3 m\u01b0a l\u1edbn, h\u00e3y ch\u1ec9 \u0111\u1ecbnh IP66 ho\u1eb7c IP67. Nh\u01b0ng \u0111\u00e2y l\u00e0 nh\u1eefng g\u00ec h\u1ea7u h\u1ebft c\u00e1c b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt s\u1ebd kh\u00f4ng cho b\u1ea1n bi\u1ebft: x\u1ebfp h\u1ea1ng IP ch\u1ec9 ch\u1ee9ng nh\u1eadn v\u1ecf b\u1ecdc khi c\u00f2n m\u1edbi. S\u1ef1 xu\u1ed1ng c\u1ea5p do tia c\u1ef1c t\u00edm, chu k\u1ef3 nhi\u1ec7t v\u00e0 s\u1ef1 n\u00e9n c\u1ee7a mi\u1ebfng \u0111\u1ec7m \u0111\u1ec1u l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 theo th\u1eddi gian.<\/li>\n<li><strong>V\u1eadt Li\u1ec7u V\u1ecf B\u1ecdc\u2014Y\u1ebfu T\u1ed1 S\u1ed1ng C\u00f2n L\u00e2u D\u00e0i<\/strong>: B\u1ea1n c\u00f3 ba l\u1ef1a ch\u1ecdn ch\u00ednh:\n<ol>\n<li><strong>Nh\u1ef1a polycarbonate<\/strong>: Nh\u1eb9, ch\u1ed1ng \u0103n m\u00f2n v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed. Tuy nhi\u00ean, s\u1ef1 \u1ed5n \u0111\u1ecbnh tia c\u1ef1c t\u00edm l\u00e0 r\u1ea5t quan tr\u1ecdng\u2014polycarbonate kh\u00f4ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd s\u1ebd chuy\u1ec3n sang m\u00e0u v\u00e0ng v\u00e0 tr\u1edf n\u00ean gi\u00f2n trong v\u00f2ng 3-5 n\u0103m d\u01b0\u1edbi \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi tr\u1ef1c ti\u1ebfp. Y\u00eau c\u1ea7u v\u1ecf b\u1ecdc \u1ed5n \u0111\u1ecbnh tia c\u1ef1c t\u00edm, \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 ngo\u00e0i tr\u1eddi v\u1edbi b\u1ea3o h\u00e0nh tia c\u1ef1c t\u00edm t\u1ed1i thi\u1ec3u 10 n\u0103m.<\/li>\n<li><strong>Th\u00e9p s\u01a1n t\u0129nh \u0111i\u1ec7n<\/strong>: B\u1ec1n v\u00e0 kinh t\u1ebf, nh\u01b0ng d\u1ec5 b\u1ecb \u0103n m\u00f2n trong m\u00f4i tr\u01b0\u1eddng ven bi\u1ec3n ho\u1eb7c c\u00f4ng nghi\u1ec7p. N\u1ebfu b\u1ea1n ch\u1ec9 \u0111\u1ecbnh th\u00e9p, h\u00e3y x\u00e1c minh l\u1edbp ph\u1ee7 b\u1ed9t \u0111\u00e1p \u1ee9ng th\u1eed nghi\u1ec7m phun mu\u1ed1i ASTM B117 (t\u1ed1i thi\u1ec3u 1000 gi\u1edd) v\u00e0 ki\u1ec3m tra c\u00e1c \u0111i\u1ec3m l\u1eafp \u0111\u1eb7t n\u01a1i l\u1edbp ph\u1ee7 b\u1ecb t\u1ed5n h\u1ea1i.<\/li>\n<li><strong>Th\u00e9p kh\u00f4ng g\u1ec9 316<\/strong>: L\u1ef1a ch\u1ecdn cao c\u1ea5p cho m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t\u2014l\u1eafp \u0111\u1eb7t ven bi\u1ec3n, nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t ho\u1eb7c b\u1ea5t c\u1ee9 n\u01a1i n\u00e0o c\u00f3 lo ng\u1ea1i v\u1ec1 \u0103n m\u00f2n. \u0110\u00fang v\u1eady, chi ph\u00ed cao h\u01a1n 2-3 l\u1ea7n, nh\u01b0ng tu\u1ed5i th\u1ecd 25 n\u0103m ph\u00f9 h\u1ee3p v\u1edbi b\u1ea3o h\u00e0nh t\u1ea5m pin c\u1ee7a b\u1ea1n.<\/li>\n<\/ol>\n<\/li>\n<li><strong>\u0110\u00e1nh gi\u00e1 nhi\u1ec7t \u0111\u1ed9 v\u00e0 gi\u1ea3m \u0111\u1ecbnh m\u1ee9c<\/strong>: H\u1ed9p \u0111\u1ea5u d\u00e2y ti\u00eau chu\u1ea9n ho\u1ea1t \u0111\u1ed9ng t\u1eeb -40\u00b0C \u0111\u1ebfn +70\u00b0C, nh\u01b0ng \u0111\u00e2y l\u00e0 chi ti\u1ebft quan tr\u1ecdng: <strong>\u0110\u1ecbnh m\u1ee9c c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n gi\u1ea3m khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng cao<\/strong>. M\u1ed9t h\u1ed9p \u0111\u1ea5u d\u00e2y \u0111\u01b0\u1ee3c g\u1eafn tr\u00ean m\u00e1i nh\u00e0 m\u00e0u \u0111en \u1edf Arizona c\u00f3 th\u1ec3 th\u1ea5y nhi\u1ec7t \u0111\u1ed9 b\u00ean trong l\u00e0 80-90\u00b0C. \u1ede nh\u1eefng nhi\u1ec7t \u0111\u1ed9 n\u00e0y, \u0111\u1ecbnh m\u1ee9c ng\u1eaft c\u1ea7u ch\u00ec gi\u1ea3m 20-30%. \u0110\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao, h\u00e3y ch\u1ec9 \u0111\u1ecbnh h\u1ed9p \u0111\u1ea5u d\u00e2y c\u00f3 c\u1ea7u ch\u00ec nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c l\u00e0m m\u00e1t ch\u1ee7 \u0111\u1ed9ng.<\/li>\n<\/ul>\n<blockquote><p><strong>M\u1eb9o chuy\u00ean nghi\u1ec7p<\/strong>: <em>IP65 b\u1ea3o v\u1ec7 ch\u1ed1ng n\u01b0\u1edbc, nh\u01b0ng t\u00e1c nh\u00e2n th\u1ef1c s\u1ef1 g\u00e2y h\u1ea1i trong c\u00e1c l\u1eafp \u0111\u1eb7t n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi ngo\u00e0i tr\u1eddi l\u00e0 s\u1ef1 suy gi\u1ea3m do tia c\u1ef1c t\u00edm. V\u1ecf nh\u1ef1a kh\u00f4ng \u1ed5n \u0111\u1ecbnh tia c\u1ef1c t\u00edm s\u1ebd h\u1ecfng do ti\u1ebfp x\u00fac v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi tr\u01b0\u1edbc khi n\u01b0\u1edbc x\u00e2m nh\u1eadp tr\u1edf th\u00e0nh v\u1ea5n \u0111\u1ec1. Lu\u00f4n x\u00e1c minh ch\u1ee9ng nh\u1eadn \u1ed5n \u0111\u1ecbnh tia c\u1ef1c t\u00edm.<\/em><\/p><\/blockquote>\n<h3>B\u01b0\u1edbc 4: C\u00e1c ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t t\u1ed1t nh\u1ea5t\u2014C\u00e1c chi ti\u1ebft ph\u00e2n bi\u1ec7t chuy\u00ean gia v\u1edbi nghi\u1ec7p d\u01b0<\/h3>\n<p>B\u1ea1n \u0111\u00e3 ch\u1ec9 \u0111\u1ecbnh h\u1ed9p \u0111\u1ea5u d\u00e2y ho\u00e0n h\u1ea3o. B\u00e2y gi\u1edd l\u00e0 l\u00fac \u0111\u1ec3 c\u00e0i \u0111\u1eb7t n\u00f3\u2014v\u00e0 \u0111\u00e2y l\u00e0 n\u01a1i h\u1ea7u h\u1ebft c\u00e1c l\u1ed7i b\u1eaft ngu\u1ed3n, kh\u00f4ng ph\u1ea3i t\u1eeb l\u1ed7i thi\u1ebft b\u1ecb, m\u00e0 t\u1eeb l\u1ed7i c\u00e0i \u0111\u1eb7t.<\/p>\n<ul>\n<li><strong>L\u1ef1a ch\u1ecdn v\u1ecb tr\u00ed\u2014Kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn so v\u1edbi m\u1ee9c \u0111\u1ed9 ti\u1ebfp x\u00fac<\/strong>: G\u1eafn h\u1ed9p \u0111\u1ea5u d\u00e2y c\u1ee7a b\u1ea1n trong v\u00f2ng 10 feet t\u00ednh t\u1eeb m\u00e9p m\u1ea3ng \u0111\u1ec3 d\u1ec5 d\u00e0ng ti\u1ebfp c\u1eadn trong qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec, nh\u01b0ng tr\u00e1nh c\u00e1c v\u1ecb tr\u00ed c\u00f3 \u00e1nh n\u1eafng tr\u1ef1c ti\u1ebfp t\u1eeb ph\u00eda nam, n\u01a1i nhi\u1ec7t \u0111\u1ed9 b\u00ean trong s\u1ebd t\u0103ng v\u1ecdt. N\u1ebfu c\u00f3 th\u1ec3, h\u00e3y l\u1eafp \u0111\u1eb7t \u1edf ph\u00eda b\u1eafc c\u1ee7a m\u1ed9t l\u1ed7 xuy\u00ean m\u00e1i ho\u1eb7c thi\u1ebft b\u1ecb c\u01a1 kh\u00ed cung c\u1ea5p b\u00f3ng r\u00e2m. Kh\u00f4ng bao gi\u1edd g\u1eafn h\u1ed9p \u0111\u1ea5u d\u00e2y tr\u1ef1c ti\u1ebfp tr\u00ean m\u00e1i l\u1ee3p m\u00e0ng\u2014s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t c\u00f3 g\u1edd ho\u1eb7c gi\u00e1 \u0111\u1ee1 n\u00e2ng cao \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tho\u00e1t n\u01b0\u1edbc v\u00e0 ng\u0103n ng\u1eeba h\u01b0 h\u1ecfng m\u00e0ng.<\/li>\n<li><strong>\u0110\u1ecbnh c\u1ee1 d\u00e2y v\u00e0 k\u1ebft n\u1ed1i\u2014\u0110i\u1ec3m h\u1ecfng h\u00f3c ph\u1ed5 bi\u1ebfn nh\u1ea5t<\/strong>: \u0110\u00e2y l\u00e0 n\u01a1i l\u00fd thuy\u1ebft g\u1eb7p th\u1ef1c t\u1ebf, v\u00e0 th\u1ef1c t\u1ebf th\u01b0\u1eddng th\u1eafng th\u1ebf. \u0110\u00e2y l\u00e0 chi ti\u1ebft quan tr\u1ecdng m\u00e0 h\u1ea7u h\u1ebft c\u00e1c tr\u00ecnh c\u00e0i \u0111\u1eb7t b\u1ecf l\u1ee1: <strong>Gi\u1ea3m \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n c\u1ee7a d\u00e2y d\u1eabn<\/strong>. D\u00e2y 10 AWG m\u00e0 b\u1ea1n k\u00e9o \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c 30A \u1edf 30\u00b0C trong kh\u00f4ng kh\u00ed t\u1ef1 do. Nh\u01b0ng \u0111\u01b0\u1ee3c b\u00f3 trong \u1ed1ng d\u1eabn tr\u00ean m\u00e1i nh\u00e0 45\u00b0C, n\u00f3 gi\u1ea3m xu\u1ed1ng c\u00f2n 19A. \u0110\u1ed1i v\u1edbi 20 chu\u1ed7i \u1edf 10A m\u1ed7i chu\u1ed7i, d\u00e2y d\u1eabn \u0111\u1ea7u ra k\u1ebft h\u1ee3p c\u1ee7a b\u1ea1n c\u1ea7n x\u1eed l\u00fd 250A v\u1edbi nhi\u1ec7t \u0111\u1ed9 th\u00edch h\u1ee3p v\u00e0 gi\u1ea3m \u0111\u1ecbnh m\u1ee9c l\u1ea5p \u0111\u1ea7y \u1ed1ng d\u1eabn\u2014c\u00f3 kh\u1ea3 n\u0103ng l\u00e0 \u0111\u1ed3ng 250-300 kcmil ho\u1eb7c l\u1edbn h\u01a1n.<\/li>\n<li>T\u1ea1i c\u00e1c \u0111\u1ea7u n\u1ed1i, h\u00e3y s\u1eed d\u1ee5ng <strong>Tua v\u00edt l\u1ef1c \u0111\u01b0\u1ee3c hi\u1ec7u ch\u1ec9nh<\/strong> \u0111\u01b0\u1ee3c \u0111\u1eb7t theo th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t (th\u01b0\u1eddng l\u00e0 15-25 in-lbs cho \u0111\u1ea7u v\u00e0o chu\u1ed7i, 40-60 in-lbs cho v\u1ea5u \u0111\u1ea7u ra ch\u00ednh). Si\u1ebft qu\u00e1 ch\u1eb7t l\u00e0m nghi\u1ec1n n\u00e1t c\u00e1c s\u1ee3i d\u00e2y d\u1eabn v\u00e0 gi\u1ea3m di\u1ec7n t\u00edch ti\u1ebfp x\u00fac. Si\u1ebft kh\u00f4ng \u0111\u1ee7 ch\u1eb7t t\u1ea1o ra c\u00e1c k\u1ebft n\u1ed1i c\u00f3 \u0111i\u1ec7n tr\u1edf cao, g\u00e2y qu\u00e1 nhi\u1ec7t. C\u1ea3 hai k\u1ecbch b\u1ea3n \u0111\u1ec1u d\u1eabn \u0111\u1ebfn h\u1ecfng h\u00f3c trong v\u00f2ng 1-3 n\u0103m.<\/li>\n<li><strong>Ti\u1ebfp \u0111\u1ea5t \u0111\u00fang c\u00e1ch\u2014Y\u1ebfu t\u1ed1 an to\u00e0n m\u00e0 m\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u qu\u00ean<\/strong>: Li\u00ean k\u1ebft v\u1ecf h\u1ed9p \u0111\u1ea5u d\u00e2y v\u1edbi h\u1ec7 th\u1ed1ng \u0111i\u1ec7n c\u1ef1c ti\u1ebfp \u0111\u1ea5t c\u1ee7a b\u1ea1n b\u1eb1ng d\u00e2y d\u1eabn ti\u1ebfp \u0111\u1ea5t thi\u1ebft b\u1ecb (EGC) c\u00f3 k\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p. \u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng d\u01b0\u1edbi 100A, \u0111\u00f3 l\u00e0 \u0111\u1ed3ng t\u1ed1i thi\u1ec3u 6 AWG. L\u1eafp \u0111\u1eb7t m\u1ed9t thanh c\u00e1i ti\u1ebfp \u0111\u1ea5t ri\u00eang bi\u1ec7t b\u00ean trong h\u1ed9p \u0111\u1ea5u d\u00e2y cho t\u1ea5t c\u1ea3 c\u00e1c EGC chu\u1ed7i v\u00e0 li\u00ean k\u1ebft n\u00f3 v\u1edbi v\u1ecf b\u1eb1ng m\u1ed9t v\u1ea5u ti\u1ebfp \u0111\u1ea5t \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea. Kh\u00f4ng bao gi\u1edd d\u1ef1a v\u00e0o c\u00e1c b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c s\u01a1n ho\u1eb7c anot h\u00f3a \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh li\u00ean t\u1ee5c c\u1ee7a \u0111\u1ea5t.<\/li>\n<li><strong>Ghi nh\u00e3n v\u00e0 t\u00e0i li\u1ec7u\u2014Con ng\u01b0\u1eddi t\u01b0\u01a1ng lai c\u1ee7a b\u1ea1n s\u1ebd c\u1ea3m \u01a1n b\u1ea1n<\/strong>: Ghi nh\u00e3n m\u1ecdi \u0111\u1ea7u v\u00e0o chu\u1ed7i \u0111\u01a1n l\u1ebb v\u1edbi v\u1ecb tr\u00ed b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n t\u01b0\u01a1ng \u1ee9ng (v\u00ed d\u1ee5: \u201cChu\u1ed7i 1-5, M\u1ea3ng A, H\u00e0ng 1-10\u201d). T\u1ea1o s\u01a1 \u0111\u1ed3 m\u1ed9t \u0111\u01b0\u1eddng hi\u1ec3n th\u1ecb c\u1ea5u h\u00ecnh chu\u1ed7i v\u00e0 \u0111\u0103ng n\u00f3 b\u00ean trong c\u1eeda h\u1ed9p \u0111\u1ea5u d\u00e2y. Khi kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 l\u1ed7i l\u00fac 2 gi\u1edd chi\u1ec1u v\u00e0o m\u1ed9t ng\u00e0y 95\u00b0F, vi\u1ec7c ghi nh\u00e3n r\u00f5 r\u00e0ng l\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa m\u1ed9t b\u1ea3n s\u1eeda l\u1ed7i 15 ph\u00fat v\u00e0 m\u1ed9t th\u1eed th\u00e1ch k\u00e9o d\u00e0i 2 gi\u1edd.<\/li>\n<\/ul>\n<blockquote><p><strong>\u0110i\u1ec3m ch\u00ednh<\/strong>: <em>Thanh c\u00e1i l\u00e0 x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n. M\u1ed9t thanh c\u00e1i c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf t\u1ea1o ra \u0111i\u1ec7n tr\u1edf, \u0111i\u1ec7n tr\u1edf t\u1ea1o ra nhi\u1ec7t v\u00e0 nhi\u1ec7t t\u1ea1o ra l\u1ed7i. T\u00ednh to\u00e1n t\u1ed5ng d\u00f2ng \u0111i\u1ec7n k\u1ebft h\u1ee3p v\u00e0 th\u00eam kho\u1ea3ng kh\u00f4ng 25%\u2014sau \u0111\u00f3 \u0111\u1ecbnh c\u1ee1 thanh c\u00e1i cho ph\u00f9 h\u1ee3p.<\/em><\/p><\/blockquote>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-19324\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/10\/Solar-Combiner-Box-Wiring-Diagram-and-Installation.webp\" alt=\"Solar-Combiner-Box-Wiring-Diagram-and-Installation\" width=\"1000\" height=\"369\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/10\/Solar-Combiner-Box-Wiring-Diagram-and-Installation.webp 1000w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/10\/Solar-Combiner-Box-Wiring-Diagram-and-Installation-300x111.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/10\/Solar-Combiner-Box-Wiring-Diagram-and-Installation-768x283.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/10\/Solar-Combiner-Box-Wiring-Diagram-and-Installation-18x7.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/10\/Solar-Combiner-Box-Wiring-Diagram-and-Installation-600x221.webp 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<h2>T\u1ea1i sao h\u1ed9p \u0111\u1ea5u d\u00e2y ph\u00f9 h\u1ee3p l\u00e0 kh\u00f4ng th\u1ec3 th\u01b0\u01a1ng l\u01b0\u1ee3ng<\/h2>\n<table>\n<thead>\n<tr>\n<th>N\u0103ng<\/th>\n<th>Gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c ph\u00e2n ph\u1ed1i<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>H\u1ee3p nh\u1ea5t chu\u1ed7i<\/strong><\/td>\n<td>Gi\u1ea3m 60-80% chi ph\u00ed c\u00e1p v\u00e0 c\u00e0i \u0111\u1eb7t nhanh h\u01a1n 50%<\/td>\n<\/tr>\n<tr>\n<td><strong>B\u1ea3o V\u1ec7 Qu\u00e1 D\u00f2ng<\/strong><\/td>\n<td>Ng\u0103n ch\u1eb7n c\u00e1c l\u1ed7i chu\u1ed7i \u0111\u01a1n l\u1ebb lan r\u1ed9ng th\u00e0nh c\u00e1c l\u1ed7i tr\u00ean to\u00e0n m\u1ea3ng<\/td>\n<\/tr>\n<tr>\n<td><strong>Ch\u1ed1ng s\u00e9t lan truy\u1ec1n<\/strong><\/td>\n<td>B\u1ea3o v\u1ec7 bi\u1ebfn t\u1ea7n tr\u1ecb gi\u00e1 h\u01a1n 50.000 \u0111\u00f4 la kh\u1ecfi thi\u1ec7t h\u1ea1i do s\u00e9t \u0111\u00e1nh v\u00e0 t\u0103ng \u0111i\u1ec7n \u00e1p<\/td>\n<\/tr>\n<tr>\n<td><strong>B\u1ea3o tr\u00ec Kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn<\/strong><\/td>\n<td>C\u00e1ch ly v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 c\u00e1c chu\u1ed7i ri\u00eang l\u1ebb m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft h\u1ec7 th\u1ed1ng<\/td>\n<\/tr>\n<tr>\n<td><strong>M\u00e3 Ph\u00f9 H\u1ee3p<\/strong><\/td>\n<td>\u0110\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee7a \u0110i\u1ec1u 690 c\u1ee7a NEC v\u1ec1 b\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng PV<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>H\u1ed9p \u0111\u1ea5u d\u00e2y PV l\u00e0 m\u1ed9t trong nh\u1eefng th\u00e0nh ph\u1ea7n v\u00f4 h\u00ecnh khi n\u00f3 ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng\u2014v\u00e0 hi\u1ec3n nhi\u00ean l\u00e0 th\u1ea3m h\u1ecda khi n\u00f3 b\u1ecb h\u1ecfng. Ch\u1ecdn \u0111\u00fang thi\u1ebft b\u1ecb kh\u00f4ng ph\u1ea3i l\u00e0 t\u00ecm h\u1ed9p r\u1ebb nh\u1ea5t c\u00f3 \u0111\u1ee7 v\u1ecb tr\u00ed; \u0111\u00f3 l\u00e0 v\u1ec1 vi\u1ec7c kh\u1edbp c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 v\u1edbi \u0111\u1eb7c t\u00ednh chu\u1ed7i c\u1ee7a b\u1ea1n, ch\u1ecdn x\u1ebfp h\u1ea1ng m\u00f4i tr\u01b0\u1eddng cho \u0111\u1ed9 b\u1ec1n 25 n\u0103m v\u00e0 c\u00e0i \u0111\u1eb7t v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c ng\u0103n ng\u1eeba ba t\u00e1c nh\u00e2n g\u00e2y ch\u1ebft ng\u01b0\u1eddi th\u1ea7m l\u1eb7ng: h\u01b0 h\u1ecfng do d\u00f2ng \u0111i\u1ec7n ng\u01b0\u1ee3c, l\u1ed7i nhi\u1ec7t t\u1ea1i c\u00e1c k\u1ebft n\u1ed1i v\u00e0 b\u1ea3o v\u1ec7 ch\u1ed1ng s\u00e9t lan truy\u1ec1n kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7.<\/p>\n<p>M\u1ed7i \u0111\u00f4 la \u0111\u1ea7u t\u01b0 v\u00e0o m\u1ed9t h\u1ed9p \u0111\u1ea5u d\u00e2y \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh v\u00e0 l\u1eafp \u0111\u1eb7t \u0111\u00fang c\u00e1ch s\u1ebd mang l\u1ea1i l\u1ee3i nhu\u1eadn g\u1ea5p 10 l\u1ea7n trong chi ph\u00ed b\u1ea3o tr\u00ec tr\u00e1nh \u0111\u01b0\u1ee3c, k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd h\u1ec7 th\u1ed1ng v\u00e0 s\u1ea3n xu\u1ea5t n\u0103ng l\u01b0\u1ee3ng nh\u1ea5t qu\u00e1n. C\u00e1c t\u1ea5m pin c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 l\u00e0 ng\u00f4i sao c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh, nh\u01b0ng h\u1ed9p \u0111\u1ea5u d\u00e2y l\u00e0 ng\u01b0\u1eddi qu\u1ea3n l\u00fd s\u00e2n kh\u1ea5u \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t ch\u1ea1y ho\u00e0n h\u1ea3o trong 25 n\u0103m.<\/p>\n<p><strong>S\u1eb5n s\u00e0ng ch\u1ec9 \u0111\u1ecbnh h\u1ed9p \u0111\u1ea5u d\u00e2y PV ti\u1ebfp theo c\u1ee7a b\u1ea1n?<\/strong> Xem x\u00e9t c\u00e1c y\u00eau c\u1ea7u v\u1ec1 \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n c\u1ee7a h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n, x\u00e1c minh x\u1ebfp h\u1ea1ng m\u00f4i tr\u01b0\u1eddng cho v\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t c\u1ee7a b\u1ea1n v\u00e0 \u0111\u1ea3m b\u1ea3o c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c \u0111\u1ecbnh c\u1ee1 \u0111\u00fang c\u00e1ch cho c\u00e1c \u0111\u1eb7c t\u00ednh chu\u1ed7i c\u1ee7a b\u1ea1n. Ho\u1eb7c li\u00ean h\u1ec7 v\u1edbi nh\u00f3m h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n v\u1ec1 vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p k\u1ebft h\u1ee3p t\u1ed1i \u01b0u cho \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>The $15,000 Cable Management Nightmare Every Solar Installer Faces Picture this: You&#8217;ve just installed a 100kW commercial solar array with 20 strings of panels. Each string needs two conductors running back to the inverter\u2014that&#8217;s 40 individual cables snaking across the rooftop, through conduit, and into your electrical room. Your material costs just ballooned by $8,000. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":19325,"comment_status":"closed","ping_status":"closed","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-19323","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\/19323","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=19323"}],"version-history":[{"count":1,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/19323\/revisions"}],"predecessor-version":[{"id":19326,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/19323\/revisions\/19326"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/19325"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=19323"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=19323"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=19323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}