{"id":19987,"date":"2025-11-21T01:54:00","date_gmt":"2025-11-20T17:54:00","guid":{"rendered":"https:\/\/viox.com\/?p=19987"},"modified":"2025-11-14T14:54:42","modified_gmt":"2025-11-14T06:54:42","slug":"what-is-breaker-selectivity-coordination-guide","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/what-is-breaker-selectivity-coordination-guide\/","title":{"rendered":"\u201cT\u00ednh ch\u1ecdn l\u1ecdc\u201d l\u00e0 g\u00ec? H\u01b0\u1edbng d\u1eabn chuy\u00ean nghi\u1ec7p v\u1ec1 ph\u1ed1i h\u1ee3p b\u1ed9 ng\u1eaft m\u1ea1ch (v\u00e0 tr\u00e1nh \u201ccu\u1ed9c chi\u1ebfn kh\u00f4ng c\u00e2n s\u1ee9c\u201d)"},"content":{"rendered":"<div class=\"product-intro\">\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-19989\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22.webp\" alt=\"What is &quot;Selectivity&quot;\" width=\"800\" height=\"800\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22-12x12.webp 12w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>M\u1ed9t k\u1ef9 s\u01b0 h\u1ecdc vi\u1ec7c h\u1ecfi: \u201cNgu\u1ed3n cung c\u1ea5p \u0111i\u1ec7n c\u1ee7a t\u00f4i l\u00e0 100A. V\u1eady aptomat ch\u00ednh c\u1ee7a nh\u00e0 m\u00e1y t\u00f4i c\u0169ng n\u00ean l\u00e0 100A?\u201d<\/p>\n<p>\u0110\u1ea7u ti\u00ean, h\u00e3y nh\u1eb9 nh\u00e0ng \u0111i\u1ec1u ch\u1ec9nh thu\u1eadt ng\u1eef, v\u00ec n\u00f3 ti\u1ebft l\u1ed9 b\u00ed m\u1eadt \u201cc\u1ea5p \u0111\u1ed9 Chuy\u00ean gia\u201d. Aptomat ch\u00ednh c\u1ee7a nh\u00e0 m\u00e1y kh\u00f4ng ph\u1ea3i l\u00e0 \u201cMCB\u201d (m\u1ed9t <em>Miniature<\/em> Circuit Breaker, lo\u1ea1i \u201cgia d\u1ee5ng\u201d). N\u00f3 l\u00e0 m\u1ed9t <strong>&#8220;<a href=\"https:\/\/test.viox.com\/vi\/mccb\/\">MCCB<\/a>&#8220;<\/strong> (m\u1ed9t <em>Moulded Case<\/em> Circuit Breaker) ho\u1eb7c m\u1ed9t <strong>&#8220;<a href=\"https:\/\/test.viox.com\/vi\/complete-guide-to-air-circuit-breakers-acb\/\">Ng\u00e2n h\u00e0ng<\/a>&#8220;<\/strong> (m\u1ed9t <em>Kh\u00f4ng kh\u00ed<\/em> Circuit Breaker). \u0110\u00e2y l\u00e0 nh\u1eefng \u201cqu\u00e1i v\u1eadt c\u00f4ng nghi\u1ec7p\u201d.\u201d<\/p>\n<p>Nh\u01b0ng <em>b\u1ea5t<\/em> v\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf c\u00e2u h\u1ecfi c\u1ee7a anh \u1ea5y. Anh \u1ea5y \u0111ang \u0111\u1ec1 xu\u1ea5t m\u1ed9t <strong>\u201cCu\u1ed9c Chi\u1ebfn C\u00f4ng B\u1eb1ng\u201d<\/strong> (100A so v\u1edbi 100A).<\/p>\n<p>Trong b\u1ea3o v\u1ec7 \u0111i\u1ec7n, \u0111i\u1ec1u g\u00ec x\u1ea3y ra trong m\u1ed9t \u201ccu\u1ed9c chi\u1ebfn c\u00f4ng b\u1eb1ng\u201d?<\/p>\n<p>M\u1ed9t th\u1ea3m h\u1ecda.<\/p>\n<p>B\u1ea1n <em>Kh\u00f4ng bao gi\u1edd<\/em> mu\u1ed1n m\u1ed9t \u201ccu\u1ed9c chi\u1ebfn c\u00f4ng b\u1eb1ng\u201d. B\u1ea1n mu\u1ed1n m\u1ed9t \u201ch\u1ec7 th\u1ed1ng ph\u00e2n c\u1ea5p\u201d. Thu\u1eadt ng\u1eef chuy\u00ean nghi\u1ec7p cho \u0111i\u1ec1u n\u00e0y l\u00e0 <strong>\u201cT\u00ednh Ch\u1ecdn L\u1ecdc\u201d,\u201d<\/strong> v\u00e0 \u0111\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao n\u00f3 l\u00e0 kh\u00e1i ni\u1ec7m quan tr\u1ecdng nh\u1ea5t trong thi\u1ebft k\u1ebf \u0111i\u1ec7n.<\/p>\n<hr \/>\n<h2>Ph\u00e9p lo\u1ea1i suy \u201c\u1ed0ng N\u01b0\u1edbc\u201d: T\u00ednh Ch\u1ecdn L\u1ecdc l\u00e0 g\u00ec?<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-19990\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity.webp\" alt=\"The &quot;Water Pipe&quot; Analogy: What is Selectivity?\" width=\"800\" height=\"800\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity-12x12.webp 12w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><strong>T\u00ednh ch\u1ecdn l\u1ecdc<\/strong> (c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201cT\u00ednh Ph\u00e2n Bi\u1ec7t\u201d) c\u00f3 ngh\u0129a l\u00e0 <em>aptomat nh\u1ecf nh\u1ea5t<\/em> (c\u00e1i <em>g\u1ea7n nh\u1ea5t<\/em> v\u1edbi s\u1ef1 c\u1ed1) s\u1ebd ng\u1eaft <em>\u0111\u1ea7u ti\u00ean.<\/em>.<\/p>\n<p>Kho\u1ea3nh kh\u1eafc \u201cAha!\u201d l\u00e0 <strong>\u201cPh\u00e9p lo\u1ea1i suy \u2018\u1ed0ng N\u01b0\u1edbc\u2019\u201d.\u201d<\/strong><\/p>\n<ul>\n<li><strong>C\u1ea7u ch\u00ec c\u1ee7a \u0110i\u1ec7n l\u1ef1c (100A):<\/strong> \u0110\u00e2y l\u00e0 nh\u1eefng <strong>\u201c\u1ed0ng N\u01b0\u1edbc Ch\u00ednh c\u1ee7a Th\u00e0nh Ph\u1ed1\u201d<\/strong> d\u01b0\u1edbi l\u00f2ng \u0111\u01b0\u1eddng.<\/li>\n<li><strong>Aptomat Ch\u00ednh c\u1ee7a B\u1ea1n (80A):<\/strong> \u0110\u00e2y l\u00e0 nh\u1eefng <strong>\u201cVan G\u00f3c\u201d<\/strong> d\u01b0\u1edbi b\u1ed3n r\u1eeda nh\u00e0 b\u1ebfp c\u1ee7a b\u1ea1n.<\/li>\n<li><strong>L\u1ed7i:<\/strong> V\u00f2i b\u1ebfp c\u1ee7a b\u1ea1n b\u1eaft \u0111\u1ea7u r\u00f2 r\u1ec9 (m\u1ed9t \u201cs\u1ef1 c\u1ed1\u201d).<\/li>\n<\/ul>\n<p><strong>M\u1ee5c ti\u00eau:<\/strong> B\u1ea1n mu\u1ed1n <em>ch\u1ecdn l\u1ecdc<\/em> t\u1eaft \u201cVan G\u00f3c\u201d. B\u1ea1n kh\u00f4ng <em>Kh\u00f4ng bao gi\u1edd<\/em> mu\u1ed1n m\u1ed9t r\u00f2 r\u1ec9 v\u00f2i \u0111\u01a1n gi\u1ea3n l\u00e0m t\u1eaft \u201c\u1ed0ng N\u01b0\u1edbc Ch\u00ednh c\u1ee7a Th\u00e0nh Ph\u1ed1\u201d, \u0111\u1ea9y <em>to\u00e0n b\u1ed9 nh\u00e0 m\u00e1y c\u1ee7a b\u1ea1n<\/em> v\u00e0o b\u00f3ng t\u1ed1i.<\/p>\n<p>\u0110i\u1ec1u n\u00e0y ti\u1ebft l\u1ed9 tri\u1ebft l\u00fd c\u1ed1t l\u00f5i: <strong>\u201cB\u1ea1n b\u1ea3o v\u1ec7 c\u1ee7a b\u1ea1n, t\u00f4i b\u1ea3o v\u1ec7 c\u1ee7a t\u00f4i.\u201d<\/strong> C\u1ea7u ch\u00ec 100A c\u1ee7a \u0111i\u1ec7n l\u1ef1c \u1edf \u0111\u00f3 \u0111\u1ec3 b\u1ea3o v\u1ec7 <em>m\u00e1y bi\u1ebfn \u00e1p<\/em> c\u1ee7a h\u1ecd kh\u1ecfi <em>b\u1ea1n<\/em> h\u1ecfa ho\u1ea1n. Aptomat 80A c\u1ee7a b\u1ea1n \u1edf \u0111\u00f3 \u0111\u1ec3 b\u1ea3o v\u1ec7 <em>b\u1ea1n<\/em> b\u1ea3ng \u0111i\u1ec7n kh\u1ecfi s\u1ef1 c\u1ed1 c\u1ee7a m\u00e1y m\u00f3c c\u1ee7a b\u1ea1n. H\u1ecd kh\u00f4ng \u1edf c\u00f9ng m\u1ed9t \u0111\u1ed9i.<\/p>\n<hr \/>\n<h2>C\u00e2u chuy\u1ec7n kinh d\u1ecb: \u201cCu\u1ed9c g\u1ecdi \u0111\u00e1ng x\u1ea5u h\u1ed5\u2018 (hay c\u00f2n g\u1ecdi l\u00e0 Ng\u1eaft do nhi\u1ec5u)<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-19991\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping.webp\" alt=\"The Horror Story- &quot;The 'Shameful Call'&quot; (aka Nuisance Tripping)\" width=\"800\" height=\"800\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping-12x12.webp 12w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>V\u1eady, \u0111i\u1ec1u g\u00ec x\u1ea3y ra n\u1ebfu b\u1ea1n b\u1ecf qua \u0111i\u1ec1u n\u00e0y? \u0110i\u1ec1u g\u00ec x\u1ea3y ra n\u1ebfu b\u1ea1n t\u1ea1o ra \u201cCu\u1ed9c Chi\u1ebfn C\u00f4ng B\u1eb1ng\u201d \u0111\u00f3 (100A so v\u1edbi 100A)?<\/p>\n<p>B\u1ea1n s\u1ebd g\u1eb7p ph\u1ea3i k\u1ecbch b\u1ea3n \u201c\u00e1c m\u1ed9ng\u201d n\u00e0y: <strong>\u201cNg\u1eaft do nhi\u1ec5u.\u201d<\/strong><\/p>\n<p>L\u00fac 3 gi\u1edd s\u00e1ng. M\u1ed9t m\u00e1y duy nh\u1ea5t tr\u00ean d\u00e2y chuy\u1ec1n c\u1ee7a b\u1ea1n b\u1ecb \u0111o\u1ea3n m\u1ea1ch nghi\u00eam tr\u1ecdng (nh\u01b0ng c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c).<\/p>\n<p><strong>Cu\u1ed9c \u0110ua:<\/strong> C\u1ea3 aptomat ch\u00ednh 100A c\u1ee7a b\u1ea1n v\u00e0 c\u1ea7u ch\u00ec ch\u00ednh 100A c\u1ee7a \u0111i\u1ec7n l\u1ef1c \u0111\u1ec1u th\u1ea5y s\u1ef1 c\u1ed1 l\u1edbn. H\u1ecd \u201cch\u1ea1y \u0111ua\u201d \u0111\u1ec3 xem ai c\u00f3 th\u1ec3 ng\u1eaft tr\u01b0\u1edbc.<\/p>\n<p><strong>\u201c\u00c1c m\u1ed9ng\u201d:<\/strong> C\u1ea7u ch\u00ec <em>ph\u00eda tr\u00ean ngu\u1ed3n<\/em> c\u1ee7a \u0111i\u1ec7n l\u1ef1c th\u1eafng (ho\u1eb7c c\u1ea3 hai \u0111\u1ec1u ng\u1eaft).<\/p>\n<p><strong>H\u1eadu qu\u1ea3:<\/strong><\/p>\n<ol>\n<li>C\u00f4ng vi\u1ec7c c\u1ee7a <em>to\u00e0n b\u1ed9 nh\u00e0 m\u00e1y c\u1ee7a b\u1ea1n<\/em> ch\u00ecm v\u00e0o b\u00f3ng t\u1ed1i.<\/li>\n<li>B\u1ea1n ki\u1ec3m tra aptomat ch\u00ednh c\u1ee7a b\u1ea1n. N\u00f3\u2026 <em>v\u1eabn \u1ed5n.<\/em>.<\/li>\n<li>B\u1ea1n nh\u1eadn ra <em>c\u1ee7a \u0111i\u1ec7n l\u1ef1c.<\/em> c\u1ea7u ch\u00ec b\u1ecb n\u1ed5. N\u00f3 n\u1eb1m tr\u00ean c\u1ed9t \u0111i\u1ec7n c\u00e1ch \u0111\u00e2y 100 m\u00e9t.<\/li>\n<li>B\u1ea1n ph\u1ea3i th\u1ef1c hi\u1ec7n <strong>\u201cCu\u1ed9c G\u1ecdi \u0110\u00e1ng X\u1ea5u H\u1ed5\u2018<\/strong> \u0111\u1ebfn c\u00f4ng ty \u0111i\u1ec7n l\u1ef1c.<\/li>\n<li>B\u1ea1n \u0111\u1ee3i 4 ti\u1ebfng (trong b\u00f3ng t\u1ed1i) \u0111\u1ec3 xe t\u1ea3i c\u1ee7a c\u00f4ng ty \u0111i\u1ec7n l\u1ef1c \u0111\u1ebfn, sau \u0111\u00f3 h\u1ecd \u0111\u01b0a cho b\u1ea1n h\u00f3a \u0111\u01a1n \u201cg\u1ecdi kh\u1ea9n c\u1ea5p\u201d tr\u1ecb gi\u00e1 $5.000 \u0111\u1ec3 thay th\u1ebf <em>m\u00e1y bi\u1ebfn \u00e1p<\/em> c\u1ea7u ch\u00ec m\u00e0 <em>b\u1ea1n<\/em> thi\u1ebft k\u1ebf t\u1ed3i t\u1ec7 \u0111\u00e3 l\u00e0m n\u1ed5.<\/li>\n<\/ol>\n<blockquote><p><strong>M\u1eb8O CHUY\u00caN NGHI\u1ec6P:<\/strong> B\u1ea1n <em>Kh\u00f4ng bao gi\u1edd<\/em> mu\u1ed1n c\u00f4ng ty \u0111i\u1ec7n l\u1ef1c l\u00e0 \u201ctuy\u1ebfn ph\u00f2ng th\u1ee7 \u0111\u1ea7u ti\u00ean\u201d c\u1ee7a b\u1ea1n. \u0110\u00f3 l\u00e0 <em>b\u1ea1n<\/em> c\u00f4ng vi\u1ec7c c\u1ee7a h\u1ecd. \u201cS\u1ef1 c\u1ed1 nh\u1ea3y kh\u00f4ng mong mu\u1ed1n\u201d n\u00e0y l\u00e0 m\u1ed9t \u201cth\u1ea5t b\u1ea1i d\u00e2y chuy\u1ec1n\u201d do ho\u00e0n to\u00e0n thi\u1ebfu t\u00ednh Ch\u1ecdn L\u1ecdc.<\/p><\/blockquote>\n<hr \/>\n<h2>\u201cC\u00f4ng C\u1ee5 c\u1ee7a B\u1eadc Th\u1ea7y\u201d: T\u1ea1i sao 80A so v\u1edbi 100A l\u1ea1i l\u00e0 <em>Sai<\/em> C\u00e2u H\u1ecfi<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19992\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question.webp\" alt=\"The &quot;Master's Tool&quot;: Why 80A vs. 100A is the Wrong Question\" width=\"800\" height=\"800\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question-12x12.webp 12w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>\u201cOkay, t\u00f4i hi\u1ec3u r\u1ed3i!\u201d ng\u01b0\u1eddi h\u1ecdc vi\u1ec7c n\u00f3i. \u201cT\u00f4i s\u1ebd ch\u1ec9 c\u1ea7n l\u1eafp m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch 80A \u0111\u1ec3 \u2018\u0111\u00e1nh b\u1ea1i\u2019 b\u1ed9 100A c\u1ee7a h\u1ecd!\u201d<\/p>\n<p>\u0110\u00e2y l\u00e0 c\u00e1i b\u1eaby c\u1ee7a \u201cng\u01b0\u1eddi nghi\u1ec7p d\u01b0\u201d. \u0110\u00f3 l\u00e0 m\u1ed9t <em>\u0111o\u00e1n<\/em>.<\/p>\n<p>B\u1ed9 ng\u1eaft m\u1ea1ch 80A \u0111\u00f3 <em>c\u00f3 th\u1ec3<\/em> c\u00f3 th\u1ec3 ch\u1ecdn l\u1ecdc cho m\u1ed9t <em>qu\u00e1 t\u1ea3i nh\u1ecf<\/em> (nh\u01b0 90A). Nh\u01b0ng trong m\u1ed9t <em>ng\u1eafn m\u1ea1ch l\u1edbn<\/em> (v\u00ed d\u1ee5: 2.000A), c\u1ea3 b\u1ed9 ng\u1eaft m\u1ea1ch 80A v\u00e0 100A \u0111\u1ec1u th\u1ea5y \u201c\u0111\u00e1m ch\u00e1y b\u00e1o \u0111\u1ed9ng c\u1ea5p 9\u201d v\u00e0 s\u1ebd c\u1ed1 g\u1eafng ng\u1eaft <em>ngay l\u1eadp t\u1ee9c<\/em>. B\u1ea1n <em>v\u1eabn<\/em> c\u00f3 th\u1ec3 c\u00f3 m\u1ed9t \u201ct\u00ecnh hu\u1ed1ng ch\u1ea1y \u0111ua\u201d.\u201d<\/p>\n<p>\u201cD\u00e2n nghi\u1ec7p d\u01b0\u201d \u0111o\u00e1n v\u1edbi <em>Ampe<\/em>. \u201cD\u00e2n chuy\u00ean nghi\u1ec7p\u201d <em>ch\u1ee9ng minh<\/em> 74: v\u1edbi <em>Th\u1eddi gian<\/em>.<\/p>\n<p>\u201cC\u00f4ng C\u1ee5 c\u1ee7a B\u1eadc Th\u1ea7y\u201d l\u00e0 <strong>\u0110\u01b0\u1eddng Cong Th\u1eddi Gian - D\u00f2ng \u0110i\u1ec7n (TCC)<\/strong>.<\/p>\n<ul>\n<li>\u0110\u00e2y l\u00e0 \u201cDNA\u201d ho\u1eb7c \u201cbi\u1ec3u \u0111\u1ed3 th\u1eddi gian ph\u1ea3n \u1ee9ng\u201d cho m\u1ecdi b\u1ed9 ng\u1eaft m\u1ea1ch v\u00e0 c\u1ea7u ch\u00ec.<\/li>\n<li>M\u1ed9t \u201cD\u00e2n Chuy\u00ean Nghi\u1ec7p\u201d (nh\u01b0 m\u1ed9t k\u1ef9 s\u01b0 VIOX) th\u1ef1c hi\u1ec7n m\u1ed9t <strong>\u201cNghi\u00ean C\u1ee9u Ph\u1ed1i H\u1ee3p\u201d<\/strong> hay <strong>\u201cNghi\u00ean C\u1ee9u Ch\u1ecdn L\u1ecdc.\u201d<\/strong><\/li>\n<li>Ch\u00fang t\u00f4i ph\u1ee7 \u0111\u01b0\u1eddng cong TCC c\u1ee7a <em>h\u1ea1 ngu\u1ed3n<\/em> b\u1ed9 ng\u1eaft m\u1ea1ch ( \u201cNg\u01b0\u1eddi L\u00ednh\u201d) v\u1edbi \u0111\u01b0\u1eddng cong TCC c\u1ee7a <em>ph\u00eda tr\u00ean ngu\u1ed3n<\/em> c\u1ea7u ch\u00ec (\u201cT\u01b0\u1edbng Qu\u00e2n\u201d).<\/li>\n<\/ul>\n<p><strong>M\u1ee5c ti\u00eau:<\/strong> Ch\u00fang ta ph\u1ea3i \u0111\u1ea3m b\u1ea3o r\u1eb1ng \u0111\u1ed1i v\u1edbi <em>b\u1ea5t k\u1ef3<\/em> s\u1ef1 c\u1ed1 \u0111\u00e3 cho (t\u1eeb 100A \u0111\u1ebfn 10.000A), \u0111\u01b0\u1eddng cong c\u1ee7a \u201cNg\u01b0\u1eddi L\u00ednh\u201d l\u00e0 <em>lu\u00f4n<\/em> <strong>\u201cb\u00ean d\u01b0\u1edbi v\u00e0 b\u00ean tr\u00e1i\u201d<\/strong> \u0111\u01b0\u1eddng cong c\u1ee7a \u201cT\u01b0\u1edbng Qu\u00e2n\u201d. N\u00ean c\u00f3 <em>kh\u00f4ng c\u00f3 kho\u1ea3ng tr\u1eafng<\/em> n\u01a1i ch\u00fang ch\u1ed3ng l\u00ean nhau.<\/p>\n<p>\u0110\u00e2y l\u00e0 m\u1ed9t <em>\u0111\u1ea3m b\u1ea3o<\/em> r\u1eb1ng \u201cNg\u01b0\u1eddi L\u00ednh\u201d c\u1ee7a ch\u00fang ta (MCCB VIOX c\u1ee7a b\u1ea1n) s\u1ebd <em>lu\u00f4n<\/em> th\u1eafng \u201ccu\u1ed9c \u0111ua\u201d v\u00e0 ng\u0103n ch\u1eb7n \u201ctr\u1eadn chi\u1ebfn\u201d <em>tr\u01b0\u1edbc khi*<\/em> \u201cT\u01b0\u1edbng Qu\u00e2n\u201d (c\u1ea7u ch\u00ec c\u1ee7a c\u00f4ng ty \u0111i\u1ec7n l\u1ef1c) th\u1eadm ch\u00ed c\u00f2n nghe th\u1ea5y ti\u1ebfng s\u00fang.<\/p>\n<hr \/>\n<h2>K\u1ebft lu\u1eadn: Trong B\u1ea3o V\u1ec7, \u201cTh\u1ee9 B\u1eadc\u201d l\u00e0 \u201cAn To\u00e0n\u201d<\/h2>\n<p>B\u1ea1n <em>Kh\u00f4ng bao gi\u1edd<\/em> mu\u1ed1n m\u1ed9t <strong>\u201cCu\u1ed9c Chi\u1ebfn C\u00f4ng B\u1eb1ng.\u201d<\/strong> B\u1ea1n mu\u1ed1n m\u1ed9t <strong>\u201cTh\u1ee9 B\u1eadc.\u201d<\/strong><\/p>\n<p><strong>\u201cT\u00ednh Ch\u1ecdn L\u1ecdc\u201d<\/strong> l\u00e0 ngh\u1ec7 thu\u1eadt \u0111\u1ea3m b\u1ea3o \u201cNg\u01b0\u1eddi L\u00ednh\u201d c\u1ee7a b\u1ea1n (c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch ri\u00eang l\u1ebb c\u1ee7a b\u1ea1n) gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 <em>r\u1ea5t l\u00e2u tr\u01b0\u1edbc khi<\/em> \u201cT\u01b0\u1edbng Qu\u00e2n\u201d (b\u1ed9 ng\u1eaft m\u1ea1ch ch\u00ednh c\u1ee7a b\u1ea1n ho\u1eb7c c\u00f4ng ty \u0111i\u1ec7n l\u1ef1c) bu\u1ed9c ph\u1ea3i h\u00e0nh \u0111\u1ed9ng.<\/p>\n<p>\u0110\u00e2y l\u00e0 \u0111i\u1ec1u ph\u00e2n bi\u1ec7t m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n \u201cchuy\u00ean nghi\u1ec7p\u201d v\u1edbi m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n \u201cnghi\u1ec7p d\u01b0\u201d.<\/p>\n<p>D\u00e2n nghi\u1ec7p d\u01b0 \u0111o\u00e1n (80A so v\u1edbi 100A). D\u00e2n chuy\u00ean nghi\u1ec7p <em>t\u00ednh to\u00e1n<\/em>.<\/p>\n<p>VIOX cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 d\u1eef li\u1ec7u \u0111\u01b0\u1eddng cong TCC cho t\u1ea5t c\u1ea3 c\u00e1c MCCB v\u00e0 ACB c\u1ee7a ch\u00fang t\u00f4i, cho ph\u00e9p b\u1ea1n thi\u1ebft k\u1ebf m\u1ed9t h\u1ec7 th\u1ed1ng th\u1ef1c s\u1ef1 <em>ch\u1ecdn l\u1ecdc<\/em> v\u00e0 <em>an to\u00e0n<\/em> h\u1ec7 th\u1ed1ng. \u0110\u1eebng g\u00e2y ra \u201cCu\u1ed9c G\u1ecdi \u0110\u00e1ng X\u1ea5u H\u1ed5\u201d.\u201d<\/p>\n<p><strong>Thi\u1ebft k\u1ebf ch\u1eafc ch\u1eafn. Duy\u1ec7t MCCB VIOX c\u1ee7a ch\u00fang t\u00f4i v\u00e0 nh\u1eadn d\u1eef li\u1ec7u TCC b\u1ea1n c\u1ea7n.<\/strong><\/p>\n<hr \/>\n<h3>K\u1ef9 Thu\u1eadt Ch\u00ednh X\u00e1c Ch\u00fa \u00dd<\/h3>\n<pre><code>**Ti\u00eau chu\u1ea9n &amp; Ngu\u1ed3n tham kh\u1ea3o** <a href=\"https:\/\/test.viox.com\/vi\/mcb\/\">C\u00f4ng<\/a> (Aptomat thu nh\u1ecf, IEC 60898), MCCB (Aptomat v\u1ecf \u0111\u00fac, IEC 60947-2) v\u00e0 ACB (Aptomat kh\u00f4ng kh\u00ed, IEC 60947-2) v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang l\u00e0 ch\u00ednh x\u00e1c.\n<\/code><\/pre>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>An apprentice engineer asks, &#8220;My utility supply is 100A. Should my factory&#8217;s main breaker also be 100A?&#8221; First, let&#8217;s gently correct the terminology, as it reveals the &#8220;Master-level&#8221; secret. A factory main isn&#8217;t an &#8220;MCB&#8221; (a Miniature Circuit Breaker, the &#8220;household&#8221; kind). It&#8217;s an &#8220;MCCB&#8220; (a Moulded Case Circuit Breaker) or an &#8220;ACB&#8220; (an Air [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":19996,"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-19987","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\/19987","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=19987"}],"version-history":[{"count":4,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/19987\/revisions"}],"predecessor-version":[{"id":19995,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/19987\/revisions\/19995"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/19996"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=19987"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=19987"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=19987"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}