{"id":15070,"date":"2025-04-01T20:54:26","date_gmt":"2025-04-01T12:54:26","guid":{"rendered":"https:\/\/viox.com\/?p=15070"},"modified":"2025-04-01T20:54:29","modified_gmt":"2025-04-01T12:54:29","slug":"how-to-choose-the-right-dc-isolator-switcha-complete-guide","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/how-to-choose-the-right-dc-isolator-switcha-complete-guide\/","title":{"rendered":"C\u00e1ch ch\u1ecdn c\u00f4ng t\u1eafc c\u00e1ch ly DC ph\u00f9 h\u1ee3p: H\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7"},"content":{"rendered":"<div class=\"product-intro\">\n<h2>Gi\u1edbi thi\u1ec7u<\/h2>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn c\u00f4ng t\u1eafc c\u00e1ch ly DC ph\u00f9 h\u1ee3p l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh quan tr\u1ecdng \u0111\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi, \u1ee9ng d\u1ee5ng pin v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n DC kh\u00e1c. C\u00e1c thi\u1ebft b\u1ecb an to\u00e0n chuy\u00ean d\u1ee5ng n\u00e0y cho ph\u00e9p b\u1ea1n ng\u1eaft k\u1ebft n\u1ed1i ngu\u1ed3n \u0111i\u1ec7n DC trong qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec ho\u1eb7c kh\u1ea9n c\u1ea5p, b\u1ea3o v\u1ec7 c\u1ea3 thi\u1ebft b\u1ecb v\u00e0 nh\u00e2n vi\u00ean. H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n m\u1ecdi \u0111i\u1ec1u c\u1ea7n bi\u1ebft v\u1ec1 vi\u1ec7c l\u1ef1a ch\u1ecdn c\u00f4ng t\u1eafc c\u00e1ch ly DC \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n, \u0111\u1ed3ng th\u1eddi \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u.<\/p>\n<h2>C\u00f4ng t\u1eafc c\u00e1ch ly DC l\u00e0 g\u00ec v\u00e0 t\u1ea1i sao n\u00f3 l\u1ea1i quan tr\u1ecdng?<\/h2>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-15026\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/VIOX-DC-ISOLATOR-SWITCHES.webp\" alt=\"VIOX DC ISOLATOR SWITCHES\" width=\"800\" height=\"800\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/VIOX-DC-ISOLATOR-SWITCHES.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/VIOX-DC-ISOLATOR-SWITCHES-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/VIOX-DC-ISOLATOR-SWITCHES-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/VIOX-DC-ISOLATOR-SWITCHES-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/VIOX-DC-ISOLATOR-SWITCHES-12x12.webp 12w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/VIOX-DC-ISOLATOR-SWITCHES-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/VIOX-DC-ISOLATOR-SWITCHES-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/test.viox.com\/vi\/dc-isolator-switch\/\">C\u00d4NG T\u1eaeC C\u00c1CH LY DC VIOX<\/a><\/p>\n<p>C\u00f4ng t\u1eafc c\u00e1ch ly DC l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb \u0111i\u1ec7n chuy\u00ean d\u1ee5ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ng\u1eaft k\u1ebft n\u1ed1i an to\u00e0n ngu\u1ed3n \u0111i\u1ec7n DC kh\u1ecfi m\u1ea1ch \u0111i\u1ec7n ho\u1eb7c thi\u1ebft b\u1ecb. Kh\u00f4ng gi\u1ed1ng nh\u01b0 h\u1ec7 th\u1ed1ng AC, ngu\u1ed3n \u0111i\u1ec7n DC \u0111\u1eb7t ra nh\u1eefng th\u00e1ch th\u1ee9c \u0111\u1eb7c bi\u1ec7t khi ng\u1eaft d\u00f2ng \u0111i\u1ec7n, \u0111\u00f2i h\u1ecfi c\u00e1c c\u00f4ng t\u1eafc \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf chuy\u00ean bi\u1ec7t \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u. C\u00e1c c\u00f4ng t\u1eafc n\u00e0y t\u1ea1o ra s\u1ef1 t\u00e1ch bi\u1ec7t v\u1eadt l\u00fd gi\u1eefa c\u00e1c ngu\u1ed3n \u0111i\u1ec7n (nh\u01b0 t\u1ea5m pin m\u1eb7t tr\u1eddi ho\u1eb7c pin) v\u00e0 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n, t\u1ea1o ra m\u1ed9t m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c an to\u00e0n.<\/p>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi n\u00f3i ri\u00eang, c\u00f4ng t\u1eafc c\u00e1ch ly \u0111\u00f3ng vai tr\u00f2 l\u00e0 th\u00e0nh ph\u1ea7n an to\u00e0n quan tr\u1ecdng:<\/p>\n<ul>\n<li>Cho ph\u00e9p b\u1ea3o tr\u00ec v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 an to\u00e0n m\u00e0 kh\u00f4ng c\u00f3 nguy c\u01a1 b\u1ecb \u0111i\u1ec7n gi\u1eadt<\/li>\n<li>Cung c\u1ea5p kh\u1ea3 n\u0103ng ng\u1eaft k\u1ebft n\u1ed1i kh\u1ea9n c\u1ea5p khi x\u1ea3y ra l\u1ed7i h\u1ec7 th\u1ed1ng<\/li>\n<li>\u0110\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh v\u1ec1 \u0111i\u1ec7n<\/li>\n<li>B\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i nguy c\u01a1 h\u1ecfa ho\u1ea1n v\u00e0 s\u1ef1 c\u1ed1 \u0111i\u1ec7n<\/li>\n<\/ul>\n<h2>C\u00e1c lo\u1ea1i c\u00f4ng t\u1eafc c\u00e1ch ly DC<\/h2>\n<p>C\u00f3 nhi\u1ec1u lo\u1ea1i c\u00f4ng t\u1eafc c\u00e1ch ly DC kh\u00e1c nhau cho c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau:<\/p>\n<p><strong>C\u00f4ng t\u1eafc c\u00e1ch ly pin:<\/strong> \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 ng\u1eaft k\u1ebft n\u1ed1i pin kh\u1ecfi h\u1ec7 th\u1ed1ng \u0111i\u1ec7n, ng\u0103n ng\u1eeba hi\u1ec7n t\u01b0\u1ee3ng x\u1ea3 pin ho\u1eb7c s\u1ea1c qu\u00e1 m\u1ee9c. C\u00e1c c\u00f4ng t\u1eafc n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean xe c\u1ed9, thuy\u1ec1n v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng di \u0111\u1ed9ng kh\u00e1c c\u00f3 ngu\u1ed3n pin.<\/p>\n<p><strong>C\u00f4ng t\u1eafc ng\u1eaft k\u1ebft n\u1ed1i DC:<\/strong> Ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o nh\u01b0 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi v\u00e0 tua-bin gi\u00f3. Ch\u00fang c\u00e1ch ly ngu\u1ed3n DC kh\u1ecfi t\u1ea3i v\u00e0 c\u00f3 nhi\u1ec1u m\u1ee9c \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n kh\u00e1c nhau.<\/p>\n<p><strong>C\u00f4ng t\u1eafc c\u00e1ch ly c\u1ee7a m\u00e1y c\u1eaft m\u1ea1ch:<\/strong> K\u1ebft h\u1ee3p ch\u1ee9c n\u0103ng c\u00e1ch ly v\u1edbi kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 m\u1ea1ch, cung c\u1ea5p c\u1ea3 kh\u1ea3 n\u0103ng ng\u1eaft k\u1ebft n\u1ed1i v\u00e0 b\u1ea3o v\u1ec7 qu\u00e1 t\u1ea3i\/ng\u1eafn m\u1ea1ch.<\/p>\n<h2>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh c\u1ea7n xem x\u00e9t<\/h2>\n<h3>\u00c1p v\u00e0 x\u1ebfp H\u1ea1ng Hi\u1ec7n t\u1ea1i<\/h3>\n<p>\u0110i\u1ec1u c\u1ea7n c\u00e2n nh\u1eafc c\u01a1 b\u1ea3n nh\u1ea5t khi l\u1ef1a ch\u1ecdn c\u00f4ng t\u1eafc c\u00e1ch ly DC l\u00e0 \u0111\u1ea3m b\u1ea3o n\u00f3 c\u00f3 th\u1ec3 x\u1eed l\u00fd \u0111\u01b0\u1ee3c \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n t\u1ed1i \u0111a c\u1ee7a h\u1ec7 th\u1ed1ng:<\/p>\n<p><strong>\u0110i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c:<\/strong> B\u1ed9 c\u00e1ch ly c\u1ee7a b\u1ea1n ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c cao h\u01a1n \u0111i\u1ec7n \u00e1p m\u1ea1ch h\u1edf (VOC) t\u1ed1i \u0111a c\u1ee7a h\u1ec7 th\u1ed1ng. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 t\u00ednh to\u00e1n \u0111i\u1ec7n \u00e1p ti\u1ec1m n\u0103ng t\u1ed1i \u0111a tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c t\u1ea5m pin n\u1ed1i ti\u1ebfp trong \u0111i\u1ec1u ki\u1ec7n l\u1ea1nh. H\u1ec7 s\u1ed1 an to\u00e0n 1,15 th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ec3 t\u00ednh \u0111\u1ebfn s\u1ef1 gia t\u0103ng \u0111i\u1ec7n \u00e1p trong th\u1eddi ti\u1ebft l\u1ea1nh.<\/p>\n<p>V\u00ed d\u1ee5, n\u1ebfu m\u1ed7i t\u1ea5m pin c\u00f3 VOC l\u00e0 64,9V v\u00e0 c\u00f3 8 t\u1ea5m pin \u0111\u01b0\u1ee3c n\u1ed1i ti\u1ebfp, ph\u00e9p t\u00ednh s\u1ebd l\u00e0: V = 8 \u00d7 64,9V \u00d7 1,15 = 597,08V. Do \u0111\u00f3, b\u1ed9 c\u00e1ch ly c\u1ee7a b\u1ea1n ph\u1ea3i c\u00f3 \u0111\u1ecbnh m\u1ee9c \u00edt nh\u1ea5t l\u00e0 600V DC.<\/p>\n<p><strong>X\u1ebfp h\u1ea1ng hi\u1ec7n t\u1ea1i:<\/strong> C\u00f4ng t\u1eafc ph\u1ea3i x\u1eed l\u00fd \u0111\u01b0\u1ee3c d\u00f2ng \u0111i\u1ec7n ti\u1ec1m n\u0103ng t\u1ed1i \u0111a, c\u1ed9ng v\u1edbi bi\u00ean \u0111\u1ed9 an to\u00e0n \u00edt nh\u1ea5t l\u00e0 25% \u0111\u1ec3 t\u00ednh \u0111\u1ebfn c\u00e1c xung \u0111i\u1ec7n b\u1ea5t ng\u1edd.<\/p>\n<p>\u0110\u1ed1i v\u1edbi c\u1ea5u h\u00ecnh t\u1ea5m pin m\u1eb7t tr\u1eddi m\u00e0 m\u1ed7i t\u1ea5m pin t\u1ea1o ra 6,46A (ISC), ph\u00e9p t\u00ednh s\u1ebd l\u00e0: I = 6,46A \u00d7 1,25 = 8,08A. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 c\u00f4ng t\u1eafc c\u00e1ch ly c\u1ee7a b\u1ea1n ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c \u00edt nh\u1ea5t 8,08A cho m\u1ed7i chu\u1ed7i.<\/p>\n<h3>Kh\u1ea3 N\u0103ng Ph\u00e1 V\u1ee1<\/h3>\n<p>Kh\u1ea3 n\u0103ng ng\u1eaft l\u00e0 d\u00f2ng \u0111i\u1ec7n t\u1ed1i \u0111a m\u00e0 m\u1ed9t c\u00f4ng t\u1eafc c\u00f3 th\u1ec3 ng\u1eaft an to\u00e0n trong \u0111i\u1ec1u ki\u1ec7n s\u1ef1 c\u1ed1. Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng DC v\u00ec d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u kh\u00f4ng t\u1ef1 nhi\u00ean v\u01b0\u1ee3t qua gi\u00e1 tr\u1ecb 0 nh\u01b0 d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u, khi\u1ebfn vi\u1ec7c d\u1eadp h\u1ed3 quang tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n. H\u00e3y ch\u1ecdn m\u1ed9t c\u00f4ng t\u1eafc c\u00f3 kh\u1ea3 n\u0103ng ng\u1eaft ph\u00f9 h\u1ee3p \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 ti\u1ec1m \u1ea9n trong h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n.<\/p>\n<h3>T\u00f9y ch\u1ecdn c\u1ea5u h\u00ecnh c\u1ef1c<\/h3>\n<p>C\u00f4ng t\u1eafc c\u00e1ch ly DC c\u00f3 nhi\u1ec1u c\u1ea5u h\u00ecnh c\u1ef1c kh\u00e1c nhau:<\/p>\n<p><strong>C\u00f4ng t\u1eafc \u0111\u01a1n c\u1ef1c:<\/strong> Ch\u1ec9 ng\u1eaft k\u1ebft n\u1ed1i m\u1ed9t d\u00e2y d\u1eabn, ph\u00f9 h\u1ee3p v\u1edbi m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng c\u01a1 b\u1ea3n.<\/p>\n<p><strong>C\u00f4ng t\u1eafc hai c\u1ef1c:<\/strong> Ng\u1eaft k\u1ebft n\u1ed1i c\u1ea3 d\u00e2y d\u1eabn d\u01b0\u01a1ng v\u00e0 \u00e2m c\u00f9ng l\u00fac, t\u0103ng c\u01b0\u1eddng an to\u00e0n v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u \u0111\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi.<\/p>\n<p><strong>C\u00f4ng t\u1eafc b\u1ed1n c\u1ef1c:<\/strong> \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p h\u01a1n v\u1edbi nhi\u1ec1u \u0111\u1ea7u v\u00e0o chu\u1ed7i ho\u1eb7c khi c\u1ea7n c\u00e1ch ly b\u1ed5 sung.<\/p>\n<p>L\u1ef1a ch\u1ecdn ph\u1ee5 thu\u1ed9c v\u00e0o ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n. N\u1ebfu b\u1ea1n c\u00f3 nhi\u1ec1u chu\u1ed7i c\u1ea7n c\u00e1ch ly ri\u00eang, b\u1ea1n c\u00f3 th\u1ec3 c\u1ea7n m\u1ed9t c\u00f4ng t\u1eafc c\u00f3 nhi\u1ec1u c\u1ef1c h\u01a1n ho\u1eb7c nhi\u1ec1u c\u00f4ng t\u1eafc.<\/p>\n<h3>X\u1ebfp h\u1ea1ng IP v\u00e0 B\u1ea3o v\u1ec7 M\u00f4i tr\u01b0\u1eddng<\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c c\u00f4ng tr\u00ecnh l\u1eafp \u0111\u1eb7t ngo\u00e0i tr\u1eddi nh\u01b0 h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng. Ch\u1ec9 s\u1ed1 IP (Ingress Protection) bao g\u1ed3m hai ch\u1eef s\u1ed1 \u2013 ch\u1eef s\u1ed1 \u0111\u1ea7u ti\u00ean bi\u1ec3u th\u1ecb m\u1ee9c \u0111\u1ed9 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i v\u1eadt r\u1eafn v\u00e0 ch\u1eef s\u1ed1 th\u1ee9 hai bi\u1ec3u th\u1ecb m\u1ee9c \u0111\u1ed9 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i ch\u1ea5t l\u1ecfng:<\/p>\n<p><strong>L\u1eafp \u0111\u1eb7t trong nh\u00e0:<\/strong> \u0110\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7, x\u1ebfp h\u1ea1ng IP54 th\u01b0\u1eddng l\u00e0 \u0111\u1ee7.<\/p>\n<p><strong>L\u1eafp \u0111\u1eb7t ngo\u00e0i tr\u1eddi:<\/strong> Ch\u1ecdn c\u00f4ng t\u1eafc c\u00f3 x\u1ebfp h\u1ea1ng IP65 tr\u1edf l\u00ean \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ed1ng b\u1ee5i, m\u01b0a v\u00e0 \u0111\u1ed9 \u1ea9m. \u0110\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, h\u00e3y c\u00e2n nh\u1eafc c\u00e1c s\u1ea3n ph\u1ea9m c\u00f3 x\u1ebfp h\u1ea1ng IP66 (ch\u1ed1ng tia n\u01b0\u1edbc m\u1ea1nh) ho\u1eb7c IP67 (ch\u1ed1ng ng\u00e2m n\u01b0\u1edbc t\u1ea1m th\u1eddi).<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-15027\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/VIOX-DC-Isolator-Switch-IP66.webp\" alt=\"VIOX DC Isolator Switch IP66\" width=\"800\" height=\"600\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/VIOX-DC-Isolator-Switch-IP66.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/VIOX-DC-Isolator-Switch-IP66-300x225.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/VIOX-DC-Isolator-Switch-IP66-768x576.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/VIOX-DC-Isolator-Switch-IP66-16x12.webp 16w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/VIOX-DC-Isolator-Switch-IP66-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>C\u00e1c t\u00ednh n\u0103ng an to\u00e0n c\u1ea7n thi\u1ebft c\u1ea7n ch\u00fa \u00fd<\/h2>\n<h3>C\u01a1 ch\u1ebf kh\u00f3a \u0111\u1ec3 b\u1ea3o tr\u00ec an to\u00e0n<\/h3>\n<p>C\u01a1 ch\u1ebf kh\u00f3a l\u00e0 m\u1ed9t t\u00ednh n\u0103ng an to\u00e0n quan tr\u1ecdng gi\u00fap ng\u0103n ng\u1eeba vi\u1ec7c v\u00f4 t\u00ecnh k\u00edch ho\u1ea1t l\u1ea1i m\u1ea1ch \u0111i\u1ec7n trong qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec. T\u00ednh n\u0103ng n\u00e0y cho ph\u00e9p nh\u00e2n vi\u00ean b\u1ea3o tr\u00ec kh\u00f3a c\u00f4ng t\u1eafc \u1edf v\u1ecb tr\u00ed T\u1eaeT, \u0111\u1ea3m b\u1ea3o kh\u00f4ng ai c\u00f3 th\u1ec3 v\u00f4 t\u00ecnh b\u1eadt ngu\u1ed3n h\u1ec7 th\u1ed1ng trong khi \u0111ang th\u1ef1c hi\u1ec7n c\u00f4ng vi\u1ec7c. H\u00e3y t\u00ecm c\u00e1c c\u00f4ng t\u1eafc \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi ch\u1ee9c n\u0103ng kh\u00f3a m\u00f3c t\u00edch h\u1ee3p \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng an to\u00e0n.<\/p>\n<h3>Ch\u1ec9 b\u00e1o v\u1ecb tr\u00ed r\u00f5 r\u00e0ng<\/h3>\n<p>C\u00f4ng t\u1eafc c\u00e1ch ly DC hi\u1ec7u qu\u1ea3 c\u00f3 \u0111\u00e8n b\u00e1o tr\u1ef1c quan r\u00f5 r\u00e0ng cho bi\u1ebft c\u00f4ng t\u1eafc \u0111ang \u1edf v\u1ecb tr\u00ed B\u1eacT hay T\u1eaeT. T\u00ednh n\u0103ng t\u01b0\u1edfng ch\u1eebng \u0111\u01a1n gi\u1ea3n n\u00e0y l\u1ea1i r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi an to\u00e0n v\u1eadn h\u00e0nh, v\u00ec n\u00f3 cho ph\u00e9p k\u1ef9 thu\u1eadt vi\u00ean ki\u1ec3m tra nhanh ch\u00f3ng ngu\u1ed3n \u0111i\u1ec7n \u0111\u00e3 \u0111\u01b0\u1ee3c ng\u1eaft tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u c\u00f4ng vi\u1ec7c. C\u00e1c v\u1ea1ch chia r\u00f5 r\u00e0ng gi\u00fap lo\u1ea1i b\u1ecf s\u1ef1 nh\u1ea7m l\u1eabn v\u00e0 gi\u1ea3m nguy c\u01a1 tai n\u1ea1n trong qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec ho\u1eb7c c\u00e1c t\u00ecnh hu\u1ed1ng kh\u1ea9n c\u1ea5p.<\/p>\n<h3>C\u00f4ng ngh\u1ec7 ng\u0103n ch\u1eb7n h\u1ed3 quang<\/h3>\n<p>Do d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u (DC) kh\u00f4ng t\u1ef1 nhi\u00ean v\u01b0\u1ee3t qua \u0111i\u1ec3m 0 nh\u01b0 d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u (AC), vi\u1ec7c d\u1eadp h\u1ed3 quang \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c c\u00f4ng t\u1eafc DC. C\u00f4ng t\u1eafc c\u00e1ch ly DC ch\u1ea5t l\u01b0\u1ee3ng cao t\u00edch h\u1ee3p c\u00f4ng ngh\u1ec7 d\u1eadp h\u1ed3 quang chuy\u00ean d\u1ee5ng gi\u00fap d\u1eadp t\u1eaft nhanh ch\u00f3ng h\u1ed3 quang \u0111i\u1ec7n trong qu\u00e1 tr\u00ecnh \u0111\u00f3ng c\u1eaft. H\u00e3y t\u00ecm c\u00e1c c\u00f4ng t\u1eafc c\u00f3 bu\u1ed3ng d\u1eadp h\u1ed3 quang ti\u00ean ti\u1ebfn v\u00e0 c\u01a1 c\u1ea5u k\u00edch ho\u1ea1t t\u1ed1c \u0111\u1ed9 cao c\u00f3 th\u1ec3 ng\u1eaft ti\u1ebfp \u0111i\u1ec3m nhanh ch\u00f3ng - l\u00fd t\u01b0\u1edfng nh\u1ea5t l\u00e0 trong v\u00f2ng mili gi\u00e2y.<\/p>\n<p>C\u00f4ng t\u1eafc DC ch\u1ea5t l\u01b0\u1ee3ng cao th\u01b0\u1eddng c\u00f3 thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac \u0111\u1eb7c bi\u1ec7t, trong \u0111\u00f3 tay c\u1ea7m v\u00e0 ti\u1ebfp \u0111i\u1ec3m kh\u00f4ng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp. Thay v\u00e0o \u0111\u00f3, ch\u00fang s\u1eed d\u1ee5ng c\u01a1 c\u1ea5u l\u00f2 xo t\u1ea1o ra t\u00e1c \u0111\u1ed9ng &quot;m\u1edf \u0111\u1ed9t ng\u1ed9t&quot; khi tay c\u1ea7m \u0111\u1ea1t \u0111\u1ebfn m\u1ed9t v\u1ecb tr\u00ed nh\u1ea5t \u0111\u1ecbnh, gi\u1ea3m thi\u1ec3u th\u1eddi gian h\u1ed3 quang v\u00e0 ng\u0103n ng\u1eeba h\u01b0 h\u1ecfng cho c\u00f4ng t\u1eafc v\u00e0 c\u00e1c linh ki\u1ec7n xung quanh.<\/p>\n<h3>Ti\u00eau chu\u1ea9n ch\u1ee9ng nh\u1eadn v\u00e0 tu\u00e2n th\u1ee7<\/h3>\n<p>Lu\u00f4n ki\u1ec3m tra xem c\u00f4ng t\u1eafc c\u00e1ch ly DC b\u1ea1n ch\u1ecdn c\u00f3 tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n v\u00e0 ch\u1ee9ng nh\u1eadn an to\u00e0n li\u00ean quan hay kh\u00f4ng. T\u00f9y thu\u1ed9c v\u00e0o v\u1ecb tr\u00ed c\u1ee7a b\u1ea1n, c\u00e1c ch\u1ee9ng nh\u1eadn quan tr\u1ecdng c\u00f3 th\u1ec3 bao g\u1ed3m:<\/p>\n<ul>\n<li>Ch\u1ee9ng nh\u1eadn IEC 60947-3 d\u00e0nh ri\u00eang cho c\u00e1c \u1ee9ng d\u1ee5ng DC<\/li>\n<li>UL508 ho\u1eb7c UL508i (d\u00e0nh ri\u00eang cho \u1ee9ng d\u1ee5ng PV)<\/li>\n<li>Y\u00eau c\u1ea7u l\u1eafp \u0111\u1eb7t AS\/NZS 5033<\/li>\n<li>Ti\u00eau chu\u1ea9n hi\u1ec7u su\u1ea5t AS 60947.3<\/li>\n<li>C\u00e1c d\u1ea5u hi\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng b\u1ed5 sung nh\u01b0 ch\u1ee9ng nh\u1eadn T\u00dcV<\/li>\n<\/ul>\n<h2>C\u00e1c y\u1ebfu t\u1ed1 v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a v\u1eadt li\u1ec7u<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-15028\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/inside-of-VIOX-DC-Isolator-Switch.webp\" alt=\"\" width=\"800\" height=\"600\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/inside-of-VIOX-DC-Isolator-Switch.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/inside-of-VIOX-DC-Isolator-Switch-300x225.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/inside-of-VIOX-DC-Isolator-Switch-768x576.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/inside-of-VIOX-DC-Isolator-Switch-16x12.webp 16w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/04\/inside-of-VIOX-DC-Isolator-Switch-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h3>Kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft cho c\u00e1c c\u00f4ng tr\u00ecnh l\u1eafp \u0111\u1eb7t ngo\u00e0i tr\u1eddi<\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng ngo\u00e0i tr\u1eddi, \u0111\u1eb7c bi\u1ec7t l\u00e0 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi PV, kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft. C\u00f4ng t\u1eafc c\u00e1ch ly DC ch\u1ea5t l\u01b0\u1ee3ng cao c\u00f3 v\u1ecf b\u1ecdc ch\u1eafc ch\u1eafn, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c th\u1eddi ti\u1ebft m\u01b0a, n\u1eafng, gi\u00f3 v\u00e0 bi\u1ebfn \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9 trong th\u1eddi gian d\u00e0i. H\u00e3y t\u00ecm c\u00f4ng t\u1eafc \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang cho l\u1eafp \u0111\u1eb7t ngo\u00e0i tr\u1eddi v\u1edbi l\u1edbp ni\u00eam phong ch\u1ed1ng \u1ea9m ph\u00f9 h\u1ee3p.<\/p>\n<h3>T\u00ednh ch\u1ea5t ch\u1ed1ng ch\u00e1y<\/h3>\n<p>C\u00e1c linh ki\u1ec7n quan tr\u1ecdng v\u1ec1 an to\u00e0n nh\u01b0 c\u00f4ng t\u1eafc c\u00e1ch ly DC n\u00ean \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng v\u1eadt li\u1ec7u ch\u1ed1ng ch\u00e1y, kh\u00f4ng lan truy\u1ec1n l\u1eeda trong \u0111i\u1ec1u ki\u1ec7n s\u1ef1 c\u1ed1. C\u00f4ng t\u1eafc ch\u1ea5t l\u01b0\u1ee3ng th\u01b0\u1eddng s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n ch\u1ed1ng ch\u00e1y UL94. C\u00e1c c\u00f4ng t\u1eafc c\u00e1ch ly DC t\u1ed1t nh\u1ea5t c\u00f3 v\u1ecf v\u00e0 th\u00e2n \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u UL94 V-0, trong khi tay c\u1ea7m th\u01b0\u1eddng tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n UL94 V-2.<\/p>\n<h3>Kh\u1ea3 n\u0103ng ch\u1ed1ng tia UV cho c\u00e1c \u1ee9ng d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi<\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, n\u01a1i c\u00e1c b\u1ed9 ph\u1eadn ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi, kh\u1ea3 n\u0103ng ch\u1ed1ng tia UV l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 ng\u0103n ng\u1eeba s\u1ef1 xu\u1ed1ng c\u1ea5p c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn nh\u1ef1a. C\u00f4ng t\u1eafc c\u00e1ch ly DC cao c\u1ea5p s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u \u1ed5n \u0111\u1ecbnh tia UV, ch\u1ed1ng h\u01b0 h\u1ecfng v\u00e0 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u01a1 h\u1ecdc c\u1ee7a ch\u00fang ngay c\u1ea3 khi ti\u1ebfp x\u00fac v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi trong nhi\u1ec1u n\u0103m.<\/p>\n<h3>Ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng<\/h3>\n<p>H\u00e3y ki\u1ec3m tra xem c\u00f4ng t\u1eafc b\u1ea1n ch\u1ecdn c\u00f3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec7t \u0111\u1ed9 kh\u1eafc nghi\u1ec7t c\u1ee7a m\u00f4i tr\u01b0\u1eddng l\u1eafp \u0111\u1eb7t hay kh\u00f4ng. C\u00e1c c\u00f4ng t\u1eafc c\u00e1ch ly DC ch\u1ea5t l\u01b0\u1ee3ng th\u01b0\u1eddng ch\u1ec9 r\u00f5 ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng, v\u1edbi c\u00e1c m\u1eabu cao c\u1ea5p c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng t\u1eeb -40\u00b0C \u0111\u1ebfn 45\u00b0C ho\u1eb7c cao h\u01a1n. Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c c\u00f4ng tr\u00ecnh l\u1eafp \u0111\u1eb7t ngo\u00e0i tr\u1eddi \u1edf nh\u1eefng v\u00f9ng c\u00f3 kh\u00ed h\u1eadu kh\u1eafc nghi\u1ec7t.<\/p>\n<h2>Nh\u1eefng c\u00e2n nh\u1eafc khi l\u1eafp \u0111\u1eb7t c\u00f4ng t\u1eafc c\u00e1ch ly DC<\/h2>\n<h3>T\u00f9y ch\u1ecdn l\u1eafp \u0111\u1eb7t v\u00e0 kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn<\/h3>\n<p>H\u00e3y c\u00e2n nh\u1eafc c\u00e1ch th\u1ee9c v\u00e0 v\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t c\u00f4ng t\u1eafc c\u00e1ch ly. C\u00f4ng t\u1eafc ph\u1ea3i d\u1ec5 d\u00e0ng ti\u1ebfp c\u1eadn \u0111\u1ec3 v\u1eadn h\u00e0nh trong qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec ho\u1eb7c kh\u1ea9n c\u1ea5p, \u0111\u1ed3ng th\u1eddi \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 kh\u1ecfi c\u00e1c t\u00e1c \u0111\u1ed9ng b\u1ea5t ng\u1edd. Nhi\u1ec1u c\u00f4ng t\u1eafc ch\u1ea5t l\u01b0\u1ee3ng cao c\u00f3 c\u00e1c \u0111i\u1ec3m l\u1eafp \u0111\u1eb7t b\u00ean ngo\u00e0i gi\u00fap vi\u1ec7c l\u1eafp \u0111\u1eb7t tr\u1edf n\u00ean \u0111\u01a1n gi\u1ea3n h\u01a1n m\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a v\u1ecf t\u1ee7.<\/p>\n<h3>T\u00ednh n\u0103ng \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u cu\u1ed1i c\u00e1p<\/h3>\n<p>Vi\u1ec7c l\u1eafp \u0111\u1eb7t c\u00e1p \u0111\u00fang c\u00e1ch l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng c\u1ee7a c\u00f4ng t\u1eafc. H\u00e3y t\u00ecm c\u00e1c m\u1eabu c\u00f3 t\u00f9y ch\u1ecdn \u0111\u1ea7u n\u1ed1i c\u00e1p ho\u1eb7c \u0111\u1ea7u v\u00e0o \u1ed1ng d\u1eabn ph\u00f9 h\u1ee3p, duy tr\u00ec x\u1ebfp h\u1ea1ng IP c\u1ee7a v\u1ecf. C\u00e1c c\u00f4ng t\u1eafc c\u00e1ch ly DC t\u1ed1t nh\u1ea5t cung c\u1ea5p nhi\u1ec1u t\u00f9y ch\u1ecdn \u0111\u1ea7u v\u00e0o v\u1edbi h\u1ec7 th\u1ed1ng b\u1ecbt k\u00edn hi\u1ec7u qu\u1ea3 \u0111\u1ec3 ng\u0103n n\u01b0\u1edbc x\u00e2m nh\u1eadp.<\/p>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c \u0111\u1ea7u n\u1ed1i, h\u00e3y ki\u1ec3m tra k\u00edch th\u01b0\u1edbc c\u00e1p t\u1ed1i \u0111a m\u00e0 c\u00e1c \u0111\u1ea7u n\u1ed1i c\u00f4ng t\u1eafc c\u00f3 th\u1ec3 ch\u1ee9a. C\u00e1c m\u1eabu cao c\u1ea5p th\u01b0\u1eddng c\u00f3 dung l\u01b0\u1ee3ng \u0111\u1ea7u n\u1ed1i l\u1edbn (v\u00ed d\u1ee5: 16mm\u00b2) v\u00e0 nh\u00e3n r\u00f5 r\u00e0ng \u0111\u1ec3 \u0111\u1ea5u d\u00e2y ch\u00ednh x\u00e1c.<\/p>\n<h3>B\u1ea3o v\u1ec7 ch\u1ed1ng ng\u01b0ng t\u1ee5 v\u00e0 \u0111\u1ed9 \u1ea9m<\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c c\u00f4ng tr\u00ecnh l\u1eafp \u0111\u1eb7t ngo\u00e0i tr\u1eddi, vi\u1ec7c b\u1ea3o v\u1ec7 ch\u1ed1ng ng\u01b0ng t\u1ee5 \u0111\u00fang c\u00e1ch l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 ng\u0103n ng\u1eeba h\u1ecfng c\u00f4ng t\u1eafc s\u1edbm. C\u00e1c khuy\u1ebfn ngh\u1ecb c\u1ee7a ng\u00e0nh bao g\u1ed3m:<\/p>\n<ul>\n<li>S\u1eed d\u1ee5ng thi\u1ebft b\u1ecb tho\u00e1t n\u01b0\u1edbc \u1edf \u0111i\u1ec3m th\u1ea5p nh\u1ea5t c\u1ee7a \u0111\u01b0\u1eddng \u1ed1ng d\u1eabn<\/li>\n<li>B\u1ecbt k\u00edn c\u00e1c \u0111\u1ea7u v\u00e0o c\u00e1p \u0111\u00fang c\u00e1ch<\/li>\n<li>Tr\u00e1nh x\u00e2m nh\u1eadp qua m\u1eb7t tr\u00ean c\u1ee7a v\u1ecf b\u1ecdc<\/li>\n<li>Xem x\u00e9t l\u1eafp \u0111\u1eb7t van ch\u1ed1ng ng\u01b0ng t\u1ee5 \u1edf nh\u1eefng khu v\u1ef1c d\u1ec5 x\u1ea3y ra s\u1ef1 c\u1ed1 ng\u01b0ng t\u1ee5<\/li>\n<\/ul>\n<h2>H\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 l\u1ef1a ch\u1ecdn c\u00f4ng t\u1eafc c\u00e1ch ly DC<\/h2>\n<h3>\u0110\u00e1nh gi\u00e1 c\u00e1c y\u00eau c\u1ea7u h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n<\/h3>\n<p>B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch ghi l\u1ea1i c\u00e1c th\u00f4ng s\u1ed1 \u0111i\u1ec7n ch\u00ednh c\u1ee7a h\u1ec7 th\u1ed1ng, bao g\u1ed3m:<\/p>\n<ul>\n<li>\u0110i\u1ec7n \u00e1p h\u1ec7 th\u1ed1ng t\u1ed1i \u0111a<\/li>\n<li>D\u00f2ng \u0111i\u1ec7n t\u1ed1i \u0111a tr\u00ean m\u1ed7i chu\u1ed7i ho\u1eb7c m\u1ea1ch<\/li>\n<li>S\u1ed1 l\u01b0\u1ee3ng chu\u1ed7i ho\u1eb7c m\u1ea1ch c\u1ea7n c\u00e1ch ly<\/li>\n<li>M\u00f4i tr\u01b0\u1eddng l\u1eafp \u0111\u1eb7t trong nh\u00e0 ho\u1eb7c ngo\u00e0i tr\u1eddi<\/li>\n<li>Y\u00eau c\u1ea7u v\u1ec1 m\u00e3 \u0111\u1ecba ph\u01b0\u01a1ng \u0111\u1ed1i v\u1edbi thi\u1ebft b\u1ecb c\u00e1ch ly<\/li>\n<\/ul>\n<h3>T\u00ednh to\u00e1n x\u1ebfp h\u1ea1ng b\u1eaft bu\u1ed9c<\/h3>\n<p>S\u1eed d\u1ee5ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n, h\u00e3y t\u00ednh to\u00e1n m\u1ee9c \u0111\u1ecbnh m\u1ee9c t\u1ed1i thi\u1ec3u c\u1ea7n thi\u1ebft cho c\u00f4ng t\u1eafc c\u00e1ch ly DC c\u1ee7a b\u1ea1n:<\/p>\n<ol>\n<li>X\u00e1c \u0111\u1ecbnh \u0111i\u1ec7n \u00e1p ti\u1ec1m n\u0103ng t\u1ed1i \u0111a, th\u00eam h\u1ec7 s\u1ed1 an to\u00e0n 1,15 cho c\u00e1c \u1ee9ng d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi<\/li>\n<li>T\u00ednh to\u00e1n d\u00f2ng \u0111i\u1ec7n ti\u1ec1m n\u0103ng c\u1ef1c \u0111\u1ea1i, th\u00eam h\u1ec7 s\u1ed1 an to\u00e0n 1,25<\/li>\n<li>X\u00e1c \u0111\u1ecbnh c\u1ea5u h\u00ecnh c\u1ef1c c\u1ea7n thi\u1ebft d\u1ef1a tr\u00ean ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n<\/li>\n<li>X\u00e1c \u0111\u1ecbnh b\u1ea5t k\u1ef3 y\u00eau c\u1ea7u \u0111\u1eb7c bi\u1ec7t n\u00e0o v\u1ec1 m\u00f4i tr\u01b0\u1eddng d\u1ef1a tr\u00ean v\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t<\/li>\n<\/ol>\n<h3>\u0110\u00e1nh gi\u00e1 m\u00f4i tr\u01b0\u1eddng c\u00e0i \u0111\u1eb7t<\/h3>\n<p>H\u00e3y xem x\u00e9t c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3 t\u1ea1i \u0111\u1ecba \u0111i\u1ec3m l\u1eafp \u0111\u1eb7t c\u1ee7a b\u1ea1n:<\/p>\n<ul>\n<li>Nhi\u1ec7t \u0111\u1ed9 c\u1ef1c<\/li>\n<li>Ti\u1ebfp x\u00fac v\u1edbi m\u01b0a, tuy\u1ebft ho\u1eb7c \u00e1nh n\u1eafng tr\u1ef1c ti\u1ebfp<\/li>\n<li>Kh\u1ea3 n\u0103ng ng\u01b0ng t\u1ee5<\/li>\n<li>Y\u00eau c\u1ea7u v\u1ec1 kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn<\/li>\n<li>Gi\u1edbi h\u1ea1n kh\u00f4ng gian<\/li>\n<\/ul>\n<h3>Th\u1ef1c hi\u1ec7n l\u1ef1a ch\u1ecdn cu\u1ed1i c\u00f9ng<\/h3>\n<p>Sau khi x\u00e1c \u0111\u1ecbnh r\u00f5 nhu c\u1ea7u, h\u00e3y so s\u00e1nh c\u00e1c l\u1ef1a ch\u1ecdn t\u1eeb c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t uy t\u00edn. \u01afu ti\u00ean c\u00e1c m\u1eabu m\u00e1y \u0111\u00e1p \u1ee9ng ho\u1eb7c v\u01b0\u1ee3t qu\u00e1 t\u1ea5t c\u1ea3 c\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt, \u0111\u1ed3ng th\u1eddi cung c\u1ea5p c\u00e1c t\u00ednh n\u0103ng an to\u00e0n v\u00e0 \u0111\u1ed9 b\u1ec1n ph\u00f9 h\u1ee3p. C\u00e2n nh\u1eafc kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng h\u1ec7 th\u1ed1ng trong t\u01b0\u01a1ng lai khi \u0111\u01b0a ra l\u1ef1a ch\u1ecdn cu\u1ed1i c\u00f9ng, c\u00f3 th\u1ec3 ch\u1ecdn lo\u1ea1i c\u00f4ng t\u1eafc c\u00f3 c\u00f4ng su\u1ea5t b\u1ed5 sung v\u01b0\u1ee3t qu\u00e1 nhu c\u1ea7u hi\u1ec7n t\u1ea1i.<\/p>\n<h2>Y\u00eau c\u1ea7u b\u1ea3o tr\u00ec v\u00e0 th\u1eed nghi\u1ec7m<\/h2>\n<h3>L\u1ecbch tr\u00ecnh ki\u1ec3m tra \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t<\/h3>\n<p>Vi\u1ec7c ki\u1ec3m tra th\u01b0\u1eddng xuy\u00ean c\u00e1c c\u00f4ng t\u1eafc c\u00e1ch ly DC l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec an to\u00e0n h\u1ec7 th\u1ed1ng. H\u00e3y thi\u1ebft l\u1eadp l\u1ecbch ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 theo khuy\u1ebfn ngh\u1ecb c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 quy \u0111\u1ecbnh \u0111\u1ecba ph\u01b0\u01a1ng. Th\u00f4ng th\u01b0\u1eddng, vi\u1ec7c ki\u1ec3m tra tr\u1ef1c quan n\u00ean \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u00edt nh\u1ea5t h\u00e0ng n\u0103m, v\u00e0 \u0111\u00e1nh gi\u00e1 k\u1ef9 l\u01b0\u1ee1ng h\u01a1n n\u1ebfu h\u1ec7 th\u1ed1ng g\u1eb7p s\u1ef1 c\u1ed1 ho\u1eb7c sau c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng th\u1eddi ti\u1ebft kh\u1eafc nghi\u1ec7t.<\/p>\n<h3>D\u1ea5u hi\u1ec7u hao m\u00f2n ho\u1eb7c h\u1ecfng h\u00f3c<\/h3>\n<p>H\u00e3y c\u1ea3nh gi\u00e1c v\u1edbi c\u00e1c d\u1ea5u hi\u1ec7u cho th\u1ea5y c\u00f4ng t\u1eafc c\u00e1ch ly DC c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 c\u1ea7n b\u1ea3o tr\u00ec ho\u1eb7c thay th\u1ebf:<\/p>\n<ul>\n<li>C\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y h\u01b0 h\u1ecfng \u1edf v\u1ecf b\u1ecdc<\/li>\n<li>N\u01b0\u1edbc x\u00e2m nh\u1eadp ho\u1eb7c ng\u01b0ng t\u1ee5 b\u00ean trong<\/li>\n<li>K\u1ebft n\u1ed1i l\u1ecfng l\u1ebbo ho\u1eb7c v\u00edt \u0111\u1ea7u cu\u1ed1i<\/li>\n<li>S\u1ef1 \u0111\u1ed5i m\u00e0u c\u1ee7a c\u00e1c \u0111\u1ea7u c\u1ef1c (ch\u1ec9 ra t\u00ecnh tr\u1ea1ng qu\u00e1 nhi\u1ec7t)<\/li>\n<li>Kh\u00f3 kh\u0103n trong v\u1eadn h\u00e0nh ho\u1eb7c chuy\u1ec3n \u0111\u1ed9ng kh\u00f4ng \u0111\u1ec1u c\u1ee7a c\u01a1 c\u1ea5u chuy\u1ec3n m\u1ea1ch<\/li>\n<li>Ph\u1edbt ho\u1eb7c mi\u1ebfng \u0111\u1ec7m b\u1ecb xu\u1ed1ng c\u1ea5p<\/li>\n<\/ul>\n<p>Vi\u1ec7c ph\u00e1t hi\u1ec7n s\u1edbm nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba nh\u1eefng h\u1ecfng h\u00f3c nghi\u00eam tr\u1ecdng h\u01a1n.<\/p>\n<h3>Quy tr\u00ecnh ki\u1ec3m tra ph\u00f9 h\u1ee3p<\/h3>\n<p>Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 gi\u00fap \u0111\u1ea3m b\u1ea3o ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady. Trong khi th\u1ee7 t\u1ee5c c\u1ee5 th\u1ec3 thay \u0111\u1ed5i b\u1edfi nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 ng\u01b0\u1eddi m\u1eabu th\u1eed nghi\u1ec7m chung th\u01b0\u1eddng bao g\u1ed3m:<\/p>\n<ul>\n<li>X\u00e1c minh ho\u1ea1t \u0111\u1ed9ng c\u01a1 h\u1ecdc th\u00edch h\u1ee3p c\u1ee7a c\u01a1 ch\u1ebf chuy\u1ec3n m\u1ea1ch<\/li>\n<li>Ki\u1ec3m tra t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a v\u1ecf b\u1ecdc v\u00e0 l\u1edbp ni\u00eam phong<\/li>\n<li>X\u00e1c nh\u1eadn k\u1ebft n\u1ed1i \u0111\u1ea7u cu\u1ed1i an to\u00e0n v\u00e0 c\u00e0i \u0111\u1eb7t m\u00f4-men xo\u1eafn th\u00edch h\u1ee3p<\/li>\n<li>X\u00e1c nh\u1eadn r\u1eb1ng c\u00f4ng t\u1eafc c\u00f3 th\u1ec3 ng\u1eaft d\u00f2ng \u0111i\u1ec7n hi\u1ec7u qu\u1ea3 khi ho\u1ea1t \u0111\u1ed9ng<\/li>\n<li>\u0110\u1ea3m b\u1ea3o c\u01a1 ch\u1ebf kh\u00f3a ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c<\/li>\n<\/ul>\n<p>Lu\u00f4n tham kh\u1ea3o t\u00e0i li\u1ec7u c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec3 bi\u1ebft c\u00e1c y\u00eau c\u1ea7u v\u00e0 quy tr\u00ecnh th\u1eed nghi\u1ec7m c\u1ee5 th\u1ec3.<\/p>\n<h2>C\u00e1c th\u01b0\u01a1ng hi\u1ec7u v\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t h\u00e0ng \u0111\u1ea7u c\u1ee7a c\u00f4ng t\u1eafc c\u00e1ch ly DC<\/h2>\n<p>M\u1eb7c d\u00f9 c\u00e1c khuy\u1ebfn ngh\u1ecb v\u1ec1 th\u01b0\u01a1ng hi\u1ec7u c\u1ee5 th\u1ec3 thay \u0111\u1ed5i theo th\u1eddi gian, h\u00e3y t\u00ecm ki\u1ebfm c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3:<\/p>\n<ul>\n<li>Th\u00e0nh t\u00edch \u0111\u00e3 \u0111\u01b0\u1ee3c kh\u1eb3ng \u0111\u1ecbnh trong l\u0129nh v\u1ef1c thi\u1ebft b\u1ecb an to\u00e0n \u0111i\u1ec7n<\/li>\n<li>B\u1ea3o h\u00e0nh to\u00e0n di\u1ec7n v\u00e0 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt<\/li>\n<li>T\u00e0i li\u1ec7u r\u00f5 r\u00e0ng v\u00e0 th\u00f4ng tin ch\u1ee9ng nh\u1eadn<\/li>\n<li>X\u00e1c minh th\u1eed nghi\u1ec7m \u0111\u1ed9c l\u1eadp<\/li>\n<\/ul>\n<p>M\u1ed9t s\u1ed1 nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn tr\u00ean th\u1ecb tr\u01b0\u1eddng c\u00f4ng t\u1eafc c\u00e1ch ly DC bao g\u1ed3m IMO Precision Controls, Aite Electric v\u00e0 c\u00e1c th\u01b0\u01a1ng hi\u1ec7u uy t\u00edn kh\u00e1c c\u00f3 ch\u1ee9ng nh\u1eadn v\u1ec1 linh ki\u1ec7n an to\u00e0n \u0111i\u1ec7n.<\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn c\u00f4ng t\u1eafc c\u00e1ch ly DC ph\u00f9 h\u1ee3p \u0111\u00f2i h\u1ecfi s\u1ef1 c\u00e2n nh\u1eafc k\u1ef9 l\u01b0\u1ee1ng v\u1ec1 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng, t\u00ednh n\u0103ng an to\u00e0n v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 ch\u1ea5t l\u01b0\u1ee3ng. B\u1eb1ng c\u00e1ch \u01b0u ti\u00ean \u0111\u1ecbnh m\u1ee9c \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n ph\u00f9 h\u1ee3p, b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng v\u00e0 ch\u1ee9ng nh\u1eadn ph\u00f9 h\u1ee3p, b\u1ea1n s\u1ebd \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng \u0111i\u1ec7n c\u1ee7a m\u00ecnh lu\u00f4n hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n trong su\u1ed1t v\u00f2ng \u0111\u1eddi ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<p>H\u00e3y nh\u1edb r\u1eb1ng m\u1eb7c d\u00f9 chi ph\u00ed ban \u0111\u1ea7u l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 c\u1ea7n c\u00e2n nh\u1eafc, nh\u01b0ng h\u1eadu qu\u1ea3 ti\u1ec1m \u1ea9n c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng c\u00f4ng t\u1eafc c\u00e1ch ly DC kh\u00f4ng ph\u00f9 h\u1ee3p ho\u1eb7c kh\u00f4ng \u0111\u00fang c\u00e1ch c\u00f2n l\u1edbn h\u01a1n nhi\u1ec1u so v\u1edbi b\u1ea5t k\u1ef3 kho\u1ea3n ti\u1ebft ki\u1ec7m ng\u1eafn h\u1ea1n n\u00e0o. H\u00e3y \u0111\u1ea7u t\u01b0 v\u00e0o c\u00e1c linh ki\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng cao, \u0111\u1ea3m b\u1ea3o d\u1ecbch v\u1ee5 \u0111\u00e1ng tin c\u1eady trong su\u1ed1t v\u00f2ng \u0111\u1eddi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<p>Khi c\u00f3 th\u1eafc m\u1eafc, h\u00e3y tham kh\u1ea3o \u00fd ki\u1ebfn c\u1ee7a th\u1ee3 \u0111i\u1ec7n ho\u1eb7c nh\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng c\u00f3 tr\u00ecnh \u0111\u1ed9 chuy\u00ean m\u00f4n, am hi\u1ec3u v\u1ec1 \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o l\u1ef1a ch\u1ecdn c\u1ee7a b\u1ea1n \u0111\u00e1p \u1ee9ng m\u1ecdi y\u00eau c\u1ea7u v\u1ec1 an to\u00e0n v\u00e0 hi\u1ec7u su\u1ea5t c\u00f3 li\u00ean quan.<\/p>\n<h2>B\u00e0i vi\u1ebft li\u00ean quan<\/h2>\n<p><a href=\"https:\/\/test.viox.com\/vi\/dc-isolator-switches-essential-safety-components-for-solar-pv-systems\/\">C\u00f4ng t\u1eafc c\u00e1ch ly DC: Linh ki\u1ec7n an to\u00e0n thi\u1ebft y\u1ebfu cho h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi PV<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Introduction Selecting the appropriate DC isolator switch is a critical decision for solar power systems, battery applications, and other DC power installations. These specialized safety devices allow you to disconnect DC power sources during maintenance or emergencies, protecting both equipment and personnel. This comprehensive guide walks you through everything you need to know about choosing [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15071,"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-15070","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\/15070","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=15070"}],"version-history":[{"count":0,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/15070\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/15071"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=15070"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=15070"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=15070"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}