{"id":21415,"date":"2026-01-24T23:36:46","date_gmt":"2026-01-24T15:36:46","guid":{"rendered":"https:\/\/viox.com\/?p=21415"},"modified":"2026-01-24T23:36:49","modified_gmt":"2026-01-24T15:36:49","slug":"busbar-selection-guide-copper-tin-silver-plating-comparison","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/busbar-selection-guide-copper-tin-silver-plating-comparison\/","title":{"rendered":"H\u01b0\u1edbng D\u1eabn Ch\u1ecdn Thanh C\u00e1i: So S\u00e1nh \u0110\u1ed3ng Tr\u1ea7n, \u0110\u1ed3ng M\u1ea1 Thi\u1ebfc v\u00e0 \u0110\u1ed3ng M\u1ea1 B\u1ea1c"},"content":{"rendered":"<div class=\"product-intro\">\n<p>B\u1ea1n v\u1eeba \u0111\u1eb7t mua c\u00e1c thanh d\u1eabn m\u1edbi cho t\u1ee7 \u0111i\u1ec7n c\u1ee7a m\u00ecnh. Nh\u00e0 cung c\u1ea5p \u0111\u01b0a ra ba l\u1ef1a ch\u1ecdn: \u0111\u1ed3ng tr\u1ea7n (r\u1ebb nh\u1ea5t), m\u1ea1 thi\u1ebfc (t\u1ea7m trung) ho\u1eb7c m\u1ea1 b\u1ea1c (cao c\u1ea5p). T\u1ea5t c\u1ea3 \u0111\u1ec1u c\u00f3 d\u00f2ng \u0111\u1ecbnh m\u1ee9c nh\u01b0 nhau. T\u1ea5t c\u1ea3 \u0111\u1ec1u \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n IEC. V\u1eady t\u1ea1i sao b\u1ea1n ph\u1ea3i tr\u1ea3 nhi\u1ec1u ti\u1ec1n h\u01a1n?<\/p>\n<p>Ba th\u00e1ng sau khi l\u1eafp \u0111\u1eb7t, b\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c cu\u1ed9c g\u1ecdi: m\u1ed9t m\u1ed1i n\u1ed1i \u0111ang b\u1ecb n\u00f3ng. Camera h\u1ed3ng ngo\u1ea1i cho th\u1ea5y nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n gi\u1edbi h\u1ea1n thi\u1ebft k\u1ebf 15\u00b0C. Nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5? Thanh d\u1eabn \u0111\u1ed3ng tr\u1ea7n \u201cgi\u00e1 h\u1eddi\u201d \u0111\u00f3 \u0111\u00e3 b\u1eaft \u0111\u1ea7u b\u1ecb oxy h\u00f3a v\u00e0 l\u1edbp oxit\u2014m\u1ed9t ch\u1ea5t d\u1eabn \u0111i\u1ec7n k\u00e9m\u2014\u0111\u00e3 \u0111\u1ea9y \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac l\u00ean r\u1ea5t cao. B\u00e2y gi\u1edd b\u1ea1n \u0111ang ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi vi\u1ec7c b\u1ea3o tr\u00ec kh\u1ea9n c\u1ea5p, kh\u1ea3 n\u0103ng h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb v\u00e0 s\u1ef1 th\u1eadt kh\u00f3 ch\u1ecbu: <strong>thanh d\u1eabn r\u1ebb nh\u1ea5t th\u01b0\u1eddng t\u1ed1n k\u00e9m nh\u1ea5t trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u1ee7a n\u00f3.<\/strong><\/p>\n<h2>T\u1ea1i Sao L\u1edbp Ph\u1ee7 Thanh D\u1eabn L\u1ea1i Quan Tr\u1ecdng: K\u1ebb Th\u00f9 Ti\u1ec1m \u1ea8n L\u00e0 S\u1ef1 Oxy H\u00f3a<\/h2>\n<p>\u0110\u1ed3ng l\u00e0 m\u1ed9t trong nh\u1eefng ch\u1ea5t d\u1eabn \u0111i\u1ec7n t\u1ed1t nh\u1ea5t tr\u00ean Tr\u00e1i \u0111\u1ea5t\u2014nh\u01b0ng ch\u1ec9 khi n\u00f3 s\u1ea1ch v\u00e0 tinh khi\u1ebft. Ngay khi n\u00f3 ti\u1ebfp x\u00fac v\u1edbi kh\u00f4ng kh\u00ed, h\u00f3a h\u1ecdc s\u1ebd chi\u1ebfm l\u1ea5y.<\/p>\n<p>\u0110\u1ed3ng tr\u1ea7n d\u1ec5 b\u1ecb oxy h\u00f3a, t\u1ea1o th\u00e0nh oxit \u0111\u1ed3ng (CuO) ho\u1eb7c c\u00e1c h\u1ee3p ch\u1ea5t ph\u1ee9c t\u1ea1p h\u01a1n nh\u01b0 cacbonat \u0111\u1ed3ng. Nh\u1eefng oxit n\u00e0y l\u00e0 <strong>ch\u1ea5t b\u00e1n d\u1eabn<\/strong>, kh\u00f4ng ph\u1ea3i ch\u1ea5t d\u1eabn \u0111i\u1ec7n. Ngay c\u1ea3 m\u1ed9t l\u1edbp m\u1ecfng 1\u20132 micromet c\u0169ng c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac m\u1ed9t c\u00e1ch \u0111\u00e1ng k\u1ec3. Khi qu\u00e1 tr\u00ecnh oxy h\u00f3a s\u00e2u h\u01a1n, \u0111i\u1ec7n tr\u1edf t\u0103ng theo c\u1ea5p s\u1ed1 nh\u00e2n. \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 th\u1ea9m m\u1ef9; \u0111\u00f3 l\u00e0 m\u1ed9t c\u01a1 ch\u1ebf g\u00e2y ra l\u1ed7i.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Line-graph-comparing-contact-resistance-increase-over-10-years.webp\" alt=\"Graph showing contact resistance degradation over 10 years for bare copper vs plated options\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">H\u00ecnh 1: Ph\u00e2n t\u00edch so s\u00e1nh s\u1ef1 suy gi\u1ea3m \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac trong kho\u1ea3ng th\u1eddi gian 10 n\u0103m cho th\u1ea5y s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a c\u00e1c thanh d\u1eabn m\u1ea1 so v\u1edbi \u0111\u1ed3ng tr\u1ea7n.<\/figcaption><\/figure>\n<p><strong>H\u1eadu qu\u1ea3 l\u00e0 m\u1ed9t v\u00f2ng lu\u1ea9n qu\u1ea9n:<\/strong><\/p>\n<ol>\n<li>Oxy h\u00f3a l\u00e0m t\u0103ng \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac (R)<\/li>\n<li>\u0110i\u1ec7n tr\u1edf cao h\u01a1n t\u1ea1o ra nhi\u1ec7t khi c\u00f3 t\u1ea3i (P = I\u00b2R)<\/li>\n<li>Nhi\u1ec7t l\u00e0m t\u0103ng t\u1ed1c qu\u00e1 tr\u00ecnh oxy h\u00f3a h\u01a1n n\u1eefa<\/li>\n<li>C\u00e1c k\u1ebft n\u1ed1i cu\u1ed1i c\u00f9ng b\u1ecb h\u1ecfng do qu\u00e1 nhi\u1ec7t ho\u1eb7c gi\u00f2n<\/li>\n<\/ol>\n<p>\u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao ng\u00e0nh \u0111i\u1ec7n kh\u00f4ng \u0111\u1ec3 \u0111i\u1ec1u n\u00e0y cho may r\u1ee7i. IEC 60947-2 (ti\u00eau chu\u1ea9n chi ph\u1ed1i thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft c\u00f4ng nghi\u1ec7p) th\u1eeba nh\u1eadn r\u1eb1ng t\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 tin c\u1eady. V\u1ea5n \u0111\u1ec1 kh\u00f4ng ph\u1ea3i l\u00e0 c\u00f3 n\u00ean ph\u1ee7 l\u1edbp b\u1ea3o v\u1ec7 cho thanh d\u1eabn c\u1ee7a b\u1ea1n hay kh\u00f4ng\u2014m\u00e0 l\u00e0 n\u00ean ch\u1ecdn l\u1edbp ph\u1ee7 n\u00e0o.<\/p>\n<hr>\n<h2>T\u00ecm Hi\u1ec3u S\u00e2u H\u01a1n: \u0110\u1ed3ng Tr\u1ea7n<\/h2>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Side-by-side-comparison-of-bare-copper-left-shiny-gold-red-tin-plated-center-dull-silver-gray-and-silver-plated-right-bright-reflective-copper-busbars-showing-surface-texture-and-coating-differences.webp\" alt=\"Side by side comparison of bare copper, tin-plated and silver-plated busbars\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">H\u00ecnh 2: So s\u00e1nh tr\u1ef1c quan k\u1ebft c\u1ea5u b\u1ec1 m\u1eb7t: \u0110\u1ed3ng Tr\u1ea7n (tr\u00e1i), M\u1ea1 Thi\u1ebfc (gi\u1eefa) v\u00e0 M\u1ea1 B\u1ea1c (ph\u1ea3i).<\/figcaption><\/figure>\n<p><strong>S\u1ef1 h\u1ea5p d\u1eabn ban \u0111\u1ea7u<\/strong>: \u0110\u1ed3ng tr\u1ea7n th\u1ec3 hi\u1ec7n \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n l\u00fd thuy\u1ebft cao nh\u1ea5t (58 MS\/m, x\u1ea5p x\u1ec9 100% IACS). N\u1ebfu b\u1ea1n \u0111ang x\u00e2y d\u1ef1ng m\u1ed9t m\u1ea1ch \u0111i\u1ec7n ng\u1eafn h\u1ea1n, \u00edt quan tr\u1ecdng trong ph\u00f2ng th\u00ed nghi\u1ec7m kh\u00f4 r\u00e1o, \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9, th\u00ec \u0111\u1ed3ng tr\u1ea7n s\u1ebd ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<p><strong>Th\u1ef1c t\u1ebf:<\/strong><\/p>\n<ul>\n<li><strong>Th\u1eed nghi\u1ec7m phun mu\u1ed1i<\/strong> (ASTM B117): \u0110\u1ed3ng tr\u1ea7n t\u1ed3n t\u1ea1i ~120 gi\u1edd tr\u01b0\u1edbc khi \u0103n m\u00f2n c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y tr\u1edf n\u00ean c\u00f3 v\u1ea5n \u0111\u1ec1<\/li>\n<li><strong>\u0110i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac<\/strong>: \u0110\u01b0\u1eddng c\u01a1 s\u1edf \u1edf m\u1ee9c 16 \u00b5\u03a9 cho m\u1ed9t thanh \u0111\u1eb7c 80mm, nh\u01b0ng t\u0103ng 8\u201312% trong v\u00f2ng 5 n\u0103m trong \u0111\u1ed9 \u1ea9m trong nh\u00e0 \u0111i\u1ec3n h\u00ecnh<\/li>\n<li><strong>G\u00e1nh n\u1eb7ng b\u1ea3o tr\u00ec<\/strong>: Y\u00eau c\u1ea7u l\u00e0m s\u1ea1ch \u0111\u1ecbnh k\u1ef3, si\u1ebft l\u1ea1i m\u00f4-men xo\u1eafn v\u00e0 b\u00f4i m\u1ee1 d\u1eabn \u0111i\u1ec7n (nh\u01b0 Penetrox ho\u1eb7c Noalox) \u0111\u1ec3 ng\u0103n ng\u1eeba qu\u00e1 tr\u00ecnh oxy h\u00f3a<\/li>\n<\/ul>\n<p><strong>T\u1ed1t nh\u1ea5t cho<\/strong>:<\/p>\n<ul>\n<li>L\u1eafp \u0111\u1eb7t t\u1ea1m th\u1eddi ho\u1eb7c m\u1ea1ch th\u1eed nghi\u1ec7m<\/li>\n<li>M\u00f4i tr\u01b0\u1eddng kh\u00f4 r\u00e1o \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t kh\u00ed h\u1eadu nghi\u00eam ng\u1eb7t (b\u1ea3o t\u00e0ng, ph\u00f2ng m\u00e1y ch\u1ee7 k\u00edn d\u01b0\u1edbi 30% \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i)<\/li>\n<li>C\u00e1c \u1ee9ng d\u1ee5ng ti\u1ebft ki\u1ec7m ng\u00e2n s\u00e1ch v\u1edbi chu k\u1ef3 thay th\u1ebf theo k\u1ebf ho\u1ea1ch (&lt;3 n\u0103m)<\/li>\n<\/ul>\n<p><strong>Kh\u00f4ng \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb cho<\/strong>: M\u00f4i tr\u01b0\u1eddng bi\u1ec3n, khu c\u00f4ng nghi\u1ec7p, l\u1eafp \u0111\u1eb7t ngo\u00e0i tr\u1eddi ho\u1eb7c b\u1ea5t k\u1ef3 y\u00eau c\u1ea7u \u0111\u1ed9 tin c\u1eady l\u00e2u d\u00e0i n\u00e0o.<\/p>\n<hr>\n<h2>T\u00ecm Hi\u1ec3u S\u00e2u H\u01a1n: \u0110\u1ed3ng M\u1ea1 Thi\u1ebfc<\/h2>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Interior-of-industrial-switchgear-panel-showing-tin-plated-copper-busbars-with-terminal-connections-ceramic-insulators-and-organized-cabling-demonstrating-professional-installation-standards.webp\" alt=\"Interior of industrial switchgear panel showing tin-plated copper busbars installation\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">H\u00ecnh 3: L\u1eafp \u0111\u1eb7t chuy\u00ean nghi\u1ec7p c\u00e1c thanh d\u1eabn \u0111\u1ed3ng m\u1ea1 thi\u1ebfc trong t\u1ee7 \u0111i\u1ec7n c\u00f4ng nghi\u1ec7p, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady l\u00e2u d\u00e0i.<\/figcaption><\/figure>\n<p><strong>T\u1ea1i sao thi\u1ebfc ho\u1ea1t \u0111\u1ed9ng<\/strong>: Thi\u1ebfc \u00edt ph\u1ea3n \u1ee9ng h\u01a1n \u0111\u1ed3ng. M\u1eb7c d\u00f9 thi\u1ebfc b\u1ecb oxy h\u00f3a (t\u1ea1o th\u00e0nh oxit thi\u1ebfc), nh\u01b0ng l\u1edbp oxit c\u1ef1c k\u1ef3 d\u00e0y \u0111\u1eb7c v\u00e0 <strong>b\u00e1m ch\u1eb7t<\/strong> v\u00e0o kim lo\u1ea1i c\u01a1 b\u1ea3n, b\u1ea3o v\u1ec7 hi\u1ec7u qu\u1ea3 \u0111\u1ed3ng b\u00ean d\u01b0\u1edbi kh\u1ecfi s\u1ef1 t\u1ea5n c\u00f4ng c\u1ee7a m\u00f4i tr\u01b0\u1eddng h\u01a1n n\u1eefa.<\/p>\n<p><strong>D\u1eef li\u1ec7u:<\/strong><\/p>\n<ul>\n<li><strong>Th\u1eed nghi\u1ec7m phun mu\u1ed1i<\/strong>: Thanh d\u1eabn m\u1ea1 thi\u1ebfc th\u01b0\u1eddng ch\u1ecbu \u0111\u01b0\u1ee3c h\u01a1n 720 gi\u1edd (g\u1ea5p 6 l\u1ea7n so v\u1edbi \u0111\u1ed3ng tr\u1ea7n)<\/li>\n<li><strong>T\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac<\/strong>: &lt;2% t\u0103ng l\u00ean trong 5 n\u0103m trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt<\/li>\n<li><strong>\u0110\u1ed9 d\u00e0y l\u1edbp m\u1ea1<\/strong>: Ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p l\u00e0 5\u201315 \u00b5m; m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng s\u1eed d\u1ee5ng t\u1edbi 50 \u00b5m trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t<\/li>\n<li><strong>\u0110\u00e1nh \u0111\u1ed5i \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n<\/strong>: Thi\u1ebfc c\u00f3 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n k\u00e9m h\u01a1n \u0111\u1ed3ng ~5 l\u1ea7n, nh\u01b0ng \u0111\u1ed9 d\u00e0y l\u1edbp m\u1ea1 r\u1ea5t nh\u1ecf (t\u1ef7 l\u1ec7 nanomet so v\u1edbi k\u00edch th\u01b0\u1edbc thanh d\u1eabn) n\u00ean n\u00f3 \u0111\u00f3ng g\u00f3p kh\u00f4ng \u0111\u00e1ng k\u1ec3 v\u00e0o \u0111i\u1ec7n tr\u1edf t\u1ed5ng th\u1ec3<\/li>\n<\/ul>\n<p><strong>L\u1ee3i th\u1ebf \u0111i\u1ec7n h\u00f3a<\/strong>: Khi \u0111\u1ed3ng m\u1ea1 thi\u1ebfc ti\u1ebfp x\u00fac v\u1edbi nh\u00f4m (ph\u1ed5 bi\u1ebfn trong h\u1ec7 th\u1ed1ng pin, bi\u1ebfn t\u1ea7n n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi), thi\u1ebfc ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t <strong>kim lo\u1ea1i trung gian<\/strong>, gi\u1ea3m s\u1ef1 kh\u00e1c bi\u1ec7t \u0111i\u1ec7n th\u1ebf t\u1eeb ~2.0V (\u0111\u1ed3ng tr\u1ea7n-nh\u00f4m) xu\u1ed1ng m\u1ee9c c\u00f3 th\u1ec3 qu\u1ea3n l\u00fd \u0111\u01b0\u1ee3c. \u0110i\u1ec1u n\u00e0y ng\u0103n ng\u1eeba s\u1ef1 \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a\u52a0\u901f c\u1ee7a nh\u00f4m.<\/p>\n<p><strong>T\u1ed1t nh\u1ea5t cho<\/strong>:<\/p>\n<ul>\n<li>T\u1ee7 \u0111i\u1ec7n v\u00e0 b\u1ea3ng ph\u00e2n ph\u1ed1i c\u00f4ng nghi\u1ec7p<\/li>\n<li>H\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o (m\u1eb7t tr\u1eddi, gi\u00f3, l\u01b0u tr\u1eef)<\/li>\n<li>Trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng quan tr\u1ecdng<\/li>\n<li>M\u00f4i tr\u01b0\u1eddng c\u00f3 \u0111\u1ed9 \u1ea9m, phun mu\u1ed1i ho\u1eb7c kh\u00f3i h\u00f3a ch\u1ea5t<\/li>\n<li>C\u1ee5m l\u1eafp r\u00e1p h\u1ed7n h\u1ee3p nh\u00f4m-\u0111\u1ed3ng<\/li>\n<\/ul>\n<hr>\n<h2>T\u00ecm Hi\u1ec3u S\u00e2u H\u01a1n: \u0110\u1ed3ng M\u1ea1 B\u1ea1c<\/h2>\n<p><strong>T\u1ea1i sao b\u1ea1c l\u1ea1i cao c\u1ea5p<\/strong>: B\u1ea1c c\u00f3 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n cao nh\u1ea5t so v\u1edbi b\u1ea5t k\u1ef3 kim lo\u1ea1i n\u00e0o (64 MS\/m) v\u00e0 v\u1eabn d\u1eabn \u0111i\u1ec7n ngay c\u1ea3 khi b\u1ecb x\u1ec9n m\u00e0u. B\u1ea1c sunfua (v\u1ebft x\u1ec9n m\u00e0u h\u00ecnh th\u00e0nh trong kh\u00f4ng kh\u00ed gi\u00e0u l\u01b0u hu\u1ef3nh) v\u1eabn l\u00e0 m\u1ed9t ch\u1ea5t d\u1eabn \u0111i\u1ec7n kh\u00e1 t\u1ed1t, kh\u00f4ng gi\u1ed1ng nh\u01b0 oxit \u0111\u1ed3ng.<\/p>\n<p><strong>D\u1eef li\u1ec7u:<\/strong><\/p>\n<ul>\n<li><strong>\u0110i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac<\/strong>: Th\u1ea5p nh\u1ea5t trong t\u1ea5t c\u1ea3 c\u00e1c t\u00f9y ch\u1ecdn; cho ph\u00e9p gi\u1edbi h\u1ea1n t\u0103ng nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n (IEC 60947-2 cho ph\u00e9p 70K \u0111\u1ed1i v\u1edbi c\u00e1c ti\u1ebfp \u0111i\u1ec3m m\u1ea1 b\u1ea1c \u0111i\u1ec7n \u00e1p th\u1ea5p so v\u1edbi 60K \u0111\u1ed1i v\u1edbi \u0111\u1ed3ng tr\u1ea7n)<\/li>\n<li><strong>Tu\u1ed5i th\u1ecd<\/strong>: Suy gi\u1ea3m t\u1ed1i thi\u1ec3u ngay c\u1ea3 trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p gi\u00e0u l\u01b0u hu\u1ef3nh<\/li>\n<li><strong>\u0110\u1ed9 d\u00e0y l\u1edbp m\u1ea1<\/strong>: Th\u00f4ng th\u01b0\u1eddng 5\u201320 \u00b5m, v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu m\u00e0i m\u00f2n cao chuy\u00ean d\u1ee5ng s\u1eed d\u1ee5ng t\u1edbi 25 \u00b5m<\/li>\n<li><strong>T\u00e1c \u0111\u1ed9ng chi ph\u00ed<\/strong>: Chi ph\u00ed g\u1ea5p 2\u20133 l\u1ea7n so v\u1edbi thanh d\u1eabn m\u1ea1 thi\u1ebfc<\/li>\n<\/ul>\n<p><strong>Khi b\u1ea1c v\u01b0\u1ee3t tr\u1ed9i h\u01a1n thi\u1ebfc<\/strong>: Trong t\u1ee7 \u0111i\u1ec7n cao th\u1ebf (ti\u00eau chu\u1ea9n IEC 62271-1 cho trung th\u1ebf v\u00e0 cao th\u1ebf), c\u00e1c ti\u1ebfp \u0111i\u1ec3m tr\u01b0\u1ee3t m\u1ea1 b\u1ea1c l\u00e0 b\u1eaft bu\u1ed9c \u0111\u1ec3 c\u00f3 hi\u1ec7u su\u1ea5t t\u0103ng nhi\u1ec7t \u0111\u1ed9 th\u1ea5p. \u0110\u1ec3 hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 c\u00e1ch \u0111i\u1ec1u n\u00e0y li\u00ean quan \u0111\u1ebfn v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac v\u00e0 c\u01a1 ch\u1ebf tri\u1ec7t ti\u00eau h\u1ed3 quang, h\u00e3y xem <a href=\"https:\/\/test.viox.com\/vi\/inside-ac-contactor-components-design-logic\/\">h\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1c th\u00e0nh ph\u1ea7n b\u1ed9 ti\u1ebfp x\u00fac AC v\u00e0 logic thi\u1ebft k\u1ebf c\u1ee7a ch\u00fang t\u00f4i<\/a>. C\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch d\u00f2ng \u0111i\u1ec7n cao v\u00e0 c\u00e1c ti\u1ebfp \u0111i\u1ec3m chuy\u1ec3n m\u1ea1ch ho\u1ea1t \u0111\u1ed9ng \u1edf \u0111i\u1ec7n \u00e1p 110kV+ d\u1ef1a v\u00e0o b\u1ea1c.<\/p>\n<p><strong>\u0110\u00e1nh \u0111\u1ed5i<\/strong>:<\/p>\n<ul>\n<li>B\u1ea1c m\u1ec1m; vi\u1ec7c ch\u00e0 x\u00e1t c\u01a1 h\u1ecdc l\u1eb7p \u0111i l\u1eb7p l\u1ea1i (ti\u1ebfp \u0111i\u1ec3m tr\u01b0\u1ee3t) c\u00f3 th\u1ec3 l\u00e0m m\u00f2n l\u1edbp m\u1ea1 nhanh h\u01a1n thi\u1ebfc<\/li>\n<li>B\u1ea1c y\u00eau c\u1ea7u m\u1ee1 b\u00f4i tr\u01a1n t\u01b0\u01a1ng th\u00edch trong m\u00f4i tr\u01b0\u1eddng rung \u0111\u1ed9ng cao \u0111\u1ec3 ng\u0103n ng\u1eeba \u201cgalling\u201d (m\u00e0i m\u00f2n do d\u00ednh)<\/li>\n<\/ul>\n<p><strong>T\u1ed1t nh\u1ea5t cho<\/strong>:<\/p>\n<ul>\n<li>C\u00e1c m\u1ed1i n\u1ed1i d\u00f2ng \u0111i\u1ec7n cao \u0111\u00f2i h\u1ecfi nhi\u1ec7t \u0111\u1ed9 t\u0103ng t\u1ed1i thi\u1ec3u (b\u1ed9 ng\u1eaft m\u1ea1ch HV, thanh c\u00e1i l\u1edbn &gt;500A)<\/li>\n<li>C\u00e1c \u1ee9ng d\u1ee5ng ti\u1ebfp x\u00fac tr\u01b0\u1ee3t ho\u1eb7c tu\u1ea7n ho\u00e0n<\/li>\n<li>Qu\u00e2n s\u1ef1 v\u00e0 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, n\u01a1i chi ph\u00ed l\u00e0 th\u1ee9 y\u1ebfu so v\u1edbi \u0111\u1ed9 tin c\u1eady<\/li>\n<li>M\u00f4i tr\u01b0\u1eddng c\u00f3 h\u00e0m l\u01b0\u1ee3ng l\u01b0u hu\u1ef3nh cao, n\u01a1i oxit \u0111\u1ed3ng s\u1ebd xu\u1ed1ng c\u1ea5p nhanh ch\u00f3ng<\/li>\n<\/ul>\n<hr>\n<h2>B\u1ea3ng so s\u00e1nh: Ma tr\u1eadn l\u1ef1a ch\u1ecdn nhanh<\/h2>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Busbar-coating-selection-matrix-comparing-bare-copper-tin-plated-and-silver-plated.webp\" alt=\"Busbar coating selection matrix comparing cost and performance\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">H\u00ecnh 4: Ma tr\u1eadn l\u1ef1a ch\u1ecdn nhanh so s\u00e1nh chi ph\u00ed ban \u0111\u1ea7u, \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a l\u1edbp ph\u1ee7 thanh c\u00e1i.<\/figcaption><\/figure>\n<table border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%; margin: 20px 0;\">\n<thead>\n<tr style=\"background-color: #f5f5f5;\">\n<th>N\u0103ng<\/th>\n<th>\u0110\u1ed3ng tr\u1ea7n<\/th>\n<th>M\u1ea1 thi\u1ebfc<\/th>\n<th>M\u1ea1 b\u1ea1c<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Ban \u0110\u1ea7u Chi Ph\u00ed<\/strong><\/td>\n<td>$$<\/td>\n<td>$$$<\/td>\n<td>$$$$<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n<\/strong><\/td>\n<td>100%<\/td>\n<td>~95% (hi\u1ec7u qu\u1ea3)<\/td>\n<td>102%<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac (5 n\u0103m)<\/strong><\/td>\n<td>+8\u201312%<\/td>\n<td>&lt;2%<\/td>\n<td>&lt;1%<\/td>\n<\/tr>\n<tr>\n<td><strong>X\u1ebfp h\u1ea1ng phun mu\u1ed1i (ASTM B117)<\/strong><\/td>\n<td>120 gi\u1edd<\/td>\n<td>720+ gi\u1edd<\/td>\n<td>1000+ gi\u1edd<\/td>\n<\/tr>\n<tr>\n<td><strong>C\u1ea7n b\u1ea3o tr\u00ec<\/strong><\/td>\n<td>Cao (6\u201312 th\u00e1ng)<\/td>\n<td>Th\u1ea5p (ki\u1ec3m tra h\u00e0ng n\u0103m)<\/td>\n<td>T\u1ed1i thi\u1ec3u<\/td>\n<\/tr>\n<tr>\n<td><strong>B\u1ea3o v\u1ec7 \u0111i\u1ec7n ph\u00e2n (v\u1edbi Al)<\/strong><\/td>\n<td>Kh\u00f4ng c\u00f3<\/td>\n<td>T\u1ed1t<\/td>\n<td>Xu\u1ea5t s\u1eafc<\/td>\n<\/tr>\n<tr>\n<td><strong>Tu\u1ed5i th\u1ecd khuy\u1ebfn ngh\u1ecb<\/strong><\/td>\n<td>3\u20135 n\u0103m<\/td>\n<td>10\u201315 n\u0103m<\/td>\n<td>15\u201320+ n\u0103m<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0110i\u1ec3n H\u00ecnh \u1ee8ng D\u1ee5ng<\/strong><\/td>\n<td>M\u00f4i tr\u01b0\u1eddng ph\u00f2ng th\u00ed nghi\u1ec7m\/kh\u00f4 r\u00e1o<\/td>\n<td>Thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft c\u00f4ng nghi\u1ec7p, n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, l\u01b0u tr\u1eef<\/td>\n<td>Thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft HV, c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng quan tr\u1ecdng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<h2>T\u00e1c \u0111\u1ed9ng th\u1ef1c t\u1ebf: \u0102n m\u00f2n \u0111i\u1ec7n ph\u00e2n &amp; Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch nh\u00f4m<\/h2>\n<p>Trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n hi\u1ec7n \u0111\u1ea1i\u2014\u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c d\u00e3y n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi v\u00e0 h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef pin\u2014b\u1ea1n th\u01b0\u1eddng g\u1eb7p <strong>d\u00e2y d\u1eabn ho\u1eb7c v\u1ea5u nh\u00f4m \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi thanh c\u00e1i \u0111\u1ed3ng<\/strong>. M\u1ed1i n\u1ed1i n\u00e0y th\u1ec3 hi\u1ec7n m\u1ed9t k\u1ecbch b\u1ea3n pin \u0111i\u1ec7n ph\u00e2n c\u1ed5 \u0111i\u1ec3n v\u00e0 l\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t ph\u00f9 h\u1ee3p l\u00e0 gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o <a href=\"https:\/\/test.viox.com\/vi\/terminal-block-certifications-5-mistakes\/\">k\u1ebft n\u1ed1i \u0111i\u1ec7n \u0111\u00e1ng tin c\u1eady<\/a> s\u1ebd k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd thi\u1ebft k\u1ebf c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Technical-diagram-showing-galvanic-corrosion-prevention-bare-copper-left-with-20V-potential-difference-causes-rapid-aluminum-corrosion-tin-plated-center-reduces-potential-to-05V-silver-plated-right-minimizes-to-01V-for-superior-protection.webp\" alt=\"Technical diagram showing galvanic corrosion prevention mechanisms\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">H\u00ecnh 5: S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 \u0111i\u1ec7n th\u1ebf \u0111i\u1ec7n h\u00f3a th\u00fac \u0111\u1ea9y \u0103n m\u00f2n \u0111i\u1ec7n ph\u00e2n. M\u1ea1 thi\u1ebfc v\u00e0 b\u1ea1c l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 \u0111i\u1ec7n th\u1ebf, b\u1ea3o v\u1ec7 k\u1ebft n\u1ed1i nh\u00f4m.<\/figcaption><\/figure>\n<p>Khi \u0111\u1ed3ng tr\u1ea7n v\u00e0 nh\u00f4m g\u1eb7p nhau trong m\u00f4i tr\u01b0\u1eddng c\u00f3 \u0111\u1ed9 \u1ea9m:<\/p>\n<ul>\n<li>Ch\u00eanh l\u1ec7ch \u0111i\u1ec7n th\u1ebf \u0111i\u1ec7n h\u00f3a: ~2.0V<\/li>\n<li>Nh\u00f4m (ph\u1ea3n \u1ee9ng m\u1ea1nh h\u01a1n) nh\u01b0\u1eddng electron<\/li>\n<li>Nh\u00f4m b\u1ecb oxy h\u00f3a th\u00e0nh Al\u2082O\u2083, m\u1ed9t l\u1edbp c\u1ee9ng, kh\u00f4ng d\u1eabn \u0111i\u1ec7n<\/li>\n<li>\u0110i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac t\u0103ng v\u1ecdt; k\u1ebft n\u1ed1i b\u1ecb l\u1ed7i<\/li>\n<\/ul>\n<p><strong>V\u1edbi \u0111\u1ed3ng m\u1ea1 thi\u1ebfc<\/strong>: L\u1edbp thi\u1ebfc l\u00e0m gi\u1ea3m s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 \u0111i\u1ec7n th\u1ebf, l\u00e0m ch\u1eadm \u0111\u00e1ng k\u1ec3 qu\u00e1 tr\u00ecnh \u0103n m\u00f2n \u0111i\u1ec7n ph\u00e2n. K\u1ebft h\u1ee3p v\u1edbi h\u1ee3p ch\u1ea5t n\u1ed1i th\u00edch h\u1ee3p (m\u1ee1 ch\u1ee9a k\u1ebdm), m\u1ed1i n\u1ed1i v\u1eabn \u1ed5n \u0111\u1ecbnh trong 10+ n\u0103m.<\/p>\n<p><strong>V\u1edbi \u0111\u1ed3ng m\u1ea1 b\u1ea1c<\/strong>: S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 \u0111i\u1ec7n th\u1ebf \u0111\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u h\u01a1n n\u1eefa, mang l\u1ea1i kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 l\u00e2u d\u00e0i v\u01b0\u1ee3t tr\u1ed9i.<\/p>\n<hr>\n<h2>C\u00e1c k\u1ecbch b\u1ea3n \u1ee9ng d\u1ee5ng<\/h2>\n<p><strong>T\u00ecnh hu\u1ed1ng 1: B\u1ea3ng ph\u00e2n ph\u1ed1i 230V d\u00e2n d\u1ee5ng<\/strong><br \/>\n    T\u1ea3i: Ngu\u1ed3n c\u1ea5p d\u00e2n d\u1ee5ng 100A v\u1edbi t\u1ea3i \u0111i\u1ec7n tr\u1edf (s\u01b0\u1edfi \u1ea5m, chi\u1ebfu s\u00e1ng)<br \/>\n    M\u00f4i tr\u01b0\u1eddng: L\u1eafp \u0111\u1eb7t trong nh\u00e0 kh\u00f4 r\u00e1o<br \/>\n    <strong>\u0110\u1ec1 xu\u1ea5t: C\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u1ed3ng tr\u1ea7n<\/strong> n\u1ebfu b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n s\u1ebd \u0111\u01b0\u1ee3c n\u00e2ng c\u1ea5p trong v\u00f2ng 5 n\u0103m; <strong>\u01b0u ti\u00ean m\u1ea1 thi\u1ebfc<\/strong> cho \u0111\u1ed9 tin c\u1eady 10 n\u0103m v\u1edbi chi ph\u00ed h\u1ee3p l\u00fd.<\/p>\n<p><strong>T\u00ecnh hu\u1ed1ng 2: H\u1ed9p k\u1ebft h\u1ee3p PV n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi (600V DC)<\/strong><br \/>\n    T\u1ea3i: 60A DC t\u1eeb c\u00e1c chu\u1ed7i song song \u0111\u1ebfn \u0111\u1ea7u v\u00e0o bi\u1ebfn t\u1ea7n<br \/>\n    M\u00f4i tr\u01b0\u1eddng: Ngo\u00e0i tr\u1eddi, \u0111\u1ed9 \u1ea9m cao, chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9<br \/>\n    Ph\u1ee9c t\u1ea1p: V\u1ea5u \u0111\u1ea7u cu\u1ed1i nh\u00f4m \u1edf ph\u00eda b\u1ed9 k\u1ebft h\u1ee3p DC<br \/>\n    <strong>\u0110\u1ec1 xu\u1ea5t: B\u1eaft bu\u1ed9c ph\u1ea3i c\u00f3 \u0111\u1ed3ng m\u1ea1 thi\u1ebfc<\/strong> \u0111\u1ec3 ng\u0103n ng\u1eeba \u0103n m\u00f2n \u0111i\u1ec7n ph\u00e2n t\u1ea1i m\u1ed1i n\u1ed1i nh\u00f4m.<\/p>\n<p><strong>T\u00ecnh hu\u1ed1ng 3: Ph\u00e2n ph\u1ed1i \u0111i\u1ec7n trung t\u00e2m d\u1eef li\u1ec7u<\/strong><br \/>\n    T\u1ea3i: Ngu\u1ed3n c\u1ea5p ba pha 400A<br \/>\n    M\u00f4i tr\u01b0\u1eddng: Ki\u1ec3m so\u00e1t kh\u00ed h\u1eadu, nh\u01b0ng ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c<br \/>\n    <strong>\u0110\u1ec1 xu\u1ea5t: Ti\u00eau chu\u1ea9n \u0111\u1ed3ng m\u1ea1 thi\u1ebfc.<\/strong> Ch\u1ec9 m\u1ea1 b\u1ea1c n\u1ebfu nhi\u1ec7t \u0111\u1ed9 t\u0103ng tr\u1edf th\u00e0nh n\u00fat th\u1eaft c\u1ed5 chai (hi\u1ebfm khi x\u1ea3y ra tr\u1eeb khi c\u00e1c th\u00e0nh ph\u1ea7n b\u1ecb thi\u1ebfu k\u00edch th\u01b0\u1edbc).<\/p>\n<p><strong>T\u00ecnh hu\u1ed1ng 4: C\u1ee5m ng\u1eaft m\u1ea1ch \u0111i\u1ec7n \u00e1p cao (C\u1ea5p 110kV)<\/strong><br \/>\n    T\u1ea3i: Ti\u1ebfp \u0111i\u1ec3m ch\u00ednh 1200A<br \/>\n    M\u00f4i tr\u01b0\u1eddng: L\u1eafp tr\u00ean c\u1ed9t ngo\u00e0i tr\u1eddi ho\u1eb7c tr\u1ea1m bi\u1ebfn \u00e1p trong nh\u00e0<br \/>\n    <strong>\u0110\u1ec1 xu\u1ea5t: B\u1eaft bu\u1ed9c s\u1eed d\u1ee5ng ti\u1ebfp \u0111i\u1ec3m tr\u01b0\u1ee3t m\u1ea1 b\u1ea1c<\/strong> theo IEC 62271-1. M\u1ea1 thi\u1ebfc kh\u00f4ng \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn cho nhi\u1ec7m v\u1ee5 n\u00e0y. \u0110\u1ec3 tham kh\u1ea3o v\u1ec1 c\u00e1ch c\u00e1c lo\u1ea1i s\u1eed d\u1ee5ng li\u00ean quan \u0111\u1ebfn vi\u1ec7c chuy\u1ec3n m\u1ea1ch t\u1ea3i \u0111i\u1ec7n v\u00e0 l\u1ef1a ch\u1ecdn thanh c\u00e1i, h\u00e3y xem <a href=\"https:\/\/test.viox.com\/vi\/understanding-iec-60947-3-utilization-categories-a-guide-to-ac-20-ac-21-ac-22-and-ac-23\/\">h\u01b0\u1edbng d\u1eabn c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 c\u00e1c lo\u1ea1i s\u1eed d\u1ee5ng IEC 60947-3<\/a>.<\/p>\n<hr>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p: C\u00e1c c\u00e2u h\u1ecfi c\u1ee7a b\u1ea1n v\u1ec1 l\u1edbp ph\u1ee7 thanh c\u00e1i \u0111\u00e3 \u0111\u01b0\u1ee3c tr\u1ea3 l\u1eddi<\/h2>\n<p><strong>Q1: T\u00f4i c\u00f3 th\u1ec3 l\u00e0m s\u1ea1ch \u0111\u1ed3ng tr\u1ea7n b\u1ecb oxy h\u00f3a v\u00e0 tr\u00e1nh m\u1ea1 kh\u00f4ng?<\/strong><br \/>\n    A: T\u1ea1m th\u1eddi th\u00ec c\u00f3. Ch\u1ea3i b\u1eb1ng b\u00e0n ch\u1ea3i s\u1eaft sau \u0111\u00f3 b\u00f4i m\u1ee1 d\u1eabn \u0111i\u1ec7n (Penetrox, Noalox) s\u1ebd lo\u1ea1i b\u1ecf qu\u00e1 tr\u00ecnh oxy h\u00f3a v\u00e0 c\u1ea3i thi\u1ec7n \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac. Tuy nhi\u00ean, oxit s\u1ebd quay tr\u1edf l\u1ea1i trong v\u00f2ng v\u00e0i th\u00e1ng trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt. \u0110\u1ed1i v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p t\u1ea1m th\u1eddi, \u0111i\u1ec1u n\u00e0y c\u00f3 hi\u1ec7u qu\u1ea3; \u0111\u1ed1i v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p l\u00e2u d\u00e0i, m\u1ea1 \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/p>\n<p><strong>Q2: L\u1edbp m\u1ea1 thi\u1ebfc c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng c\u1eaft (Icu) c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch kh\u00f4ng?<\/strong><br \/>\n    A: Kh\u00f4ng. Kh\u1ea3 n\u0103ng c\u1eaft \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi thi\u1ebft k\u1ebf d\u1eadp h\u1ed3 quang, kh\u00f4ng ph\u1ea3i l\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t. Tuy nhi\u00ean, \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac th\u1ea5p h\u01a1n (\u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n b\u1eb1ng c\u00e1ch m\u1ea1) l\u00e0m gi\u1ea3m s\u1ef1 gia t\u0103ng nhi\u1ec7t \u0111\u1ed9, c\u00f3 kh\u1ea3 n\u0103ng cho ph\u00e9p c\u00f4ng su\u1ea5t d\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c cao h\u01a1n m\u1ed9t c\u00e1ch gi\u00e1n ti\u1ebfp. Xem <a href=\"https:\/\/test.viox.com\/vi\/how-to-select-an-mccb-for-a-panel\/\">h\u01b0\u1edbng d\u1eabn ch\u1ecdn MCCB c\u1ee7a ch\u00fang t\u00f4i<\/a> \u0111\u1ec3 bi\u1ebft chi ti\u1ebft.<\/p>\n<p><strong>Q3: C\u00f3 m\u00f4i tr\u01b0\u1eddng n\u00e0o m\u00e0 l\u1edbp m\u1ea1 b\u1ea1c xu\u1ed1ng c\u1ea5p nhanh h\u01a1n thi\u1ebfc kh\u00f4ng?<\/strong><br \/>\n    A: C\u00f3\u2014c\u00e1c khu c\u00f4ng nghi\u1ec7p c\u00f3 h\u00e0m l\u01b0\u1ee3ng l\u01b0u hu\u1ef3nh cao. B\u1ea1c t\u1ea1o th\u00e0nh v\u1ebft x\u1ec9n m\u00e0u sulfide (v\u1eabn d\u1eabn \u0111i\u1ec7n nh\u01b0ng k\u00e9m th\u1ea9m m\u1ef9 h\u01a1n). Thi\u1ebfc v\u1eabn kh\u00f4ng thay \u0111\u1ed5i. N\u1ebfu h\u00ecnh th\u1ee9c ho\u1eb7c kh\u1ea3 n\u0103ng ch\u1ed1ng l\u01b0u hu\u1ef3nh l\u00e0 r\u1ea5t quan tr\u1ecdng, th\u00ec thi\u1ebfc th\u1ef1c s\u1ef1 v\u01b0\u1ee3t tr\u1ed9i h\u01a1n trong tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3 \u0111\u00f3.<\/p>\n<p><strong>Q4: T\u00f4i c\u00f3 th\u1ec3 tr\u1ed9n thanh c\u00e1i \u0111\u1ed3ng tr\u1ea7n v\u00e0 thanh c\u00e1i m\u1ea1 thi\u1ebfc trong c\u00f9ng m\u1ed9t t\u1ee7 \u0111i\u1ec7n kh\u00f4ng?<\/strong><br \/>\n    A: V\u1ec1 m\u1eb7t \u0111i\u1ec7n th\u00ec c\u00f3\u2014n\u1ebfu ch\u00fang kh\u00f4ng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp. Tuy nhi\u00ean, \u0111\u00f3 l\u00e0 m\u1ed9t th\u00f4ng l\u1ec7 t\u1ed3i v\u00ec vi\u1ec7c b\u1ea3o tr\u00ec tr\u1edf n\u00ean ph\u1ee9c t\u1ea1p: m\u1ed9t b\u1ed9 ph\u1eadn c\u1ea7n \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch\/b\u00f4i tr\u01a1n 6 th\u00e1ng m\u1ed9t l\u1ea7n, b\u1ed9 ph\u1eadn c\u00f2n l\u1ea1i th\u00ec kh\u00f4ng. <strong>Ti\u00eau chu\u1ea9n h\u00f3a tr\u00ean m\u1ed9t l\u1edbp ph\u1ee7<\/strong> cho m\u1ed7i t\u1ee7 \u0111i\u1ec7n.<\/p>\n<p><strong>Q5: L\u00e0m c\u00e1ch n\u00e0o \u0111\u1ec3 ki\u1ec3m tra thanh c\u00e1i \u0111\u1ec3 ph\u00e1t hi\u1ec7n qu\u00e1 tr\u00ecnh oxy h\u00f3a tr\u01b0\u1edbc khi h\u1ecfng?<\/strong><br \/>\n    A: Ch\u1ee5p \u1ea3nh nhi\u1ec7t l\u00e0 ti\u00eau chu\u1ea9n v\u00e0ng. M\u1ed9t m\u1ed1i n\u1ed1i b\u1ecb \u0103n m\u00f2n s\u1ebd cho th\u1ea5y nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t cao h\u01a1n 10\u201320\u00b0C d\u01b0\u1edbi t\u1ea3i \u0111\u1ecbnh m\u1ee9c. Ki\u1ec3m tra b\u1eb1ng m\u1eaft th\u01b0\u1eddng c\u0169ng c\u00f3 t\u00e1c d\u1ee5ng: m\u00e0u xanh l\u1ee5c tr\u00ean \u0111\u1ed3ng = \u0103n m\u00f2n \u0111ang ho\u1ea1t \u0111\u1ed9ng; m\u00e0u x\u00e1m\/b\u1ea1c x\u1ec9n tr\u00ean m\u1ea1 thi\u1ebfc ho\u1eb7c m\u1ea1 b\u1ea1c = l\u1edbp g\u1ec9 b\u00ecnh th\u01b0\u1eddng (kh\u00f4ng c\u00f3 v\u1ea5n \u0111\u1ec1). N\u00ean qu\u00e9t \u1ea3nh nhi\u1ec7t h\u00e0ng n\u0103m trong th\u1eddi gian t\u1ea3i cao \u0111i\u1ec3m cho c\u00e1c t\u1ee7 \u0111i\u1ec7n quan tr\u1ecdng. \u0110\u1ec3 bi\u1ebft c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t v\u1ec1 b\u1ea3o tr\u00ec thi\u1ebft b\u1ecb \u0111i\u1ec7n, h\u00e3y tham kh\u1ea3o <a href=\"https:\/\/test.viox.com\/vi\/industrial-contactor-maintenance-inspection-checklist\/\">danh s\u00e1ch ki\u1ec3m tra b\u1ea3o tr\u00ec v\u00e0 ki\u1ec3m tra c\u00f4ng nghi\u1ec7p c\u1ee7a ch\u00fang t\u00f4i<\/a>.<\/p>\n<p><strong>Q6: Chi ph\u00ed m\u00f4i tr\u01b0\u1eddng c\u1ee7a vi\u1ec7c m\u1ea1 thi\u1ebfc ho\u1eb7c b\u1ea1c l\u00e0 bao nhi\u00eau?<\/strong><br \/>\n    A: C\u00e1c quy tr\u00ecnh m\u1ea1 t\u1ea1o ra n\u01b0\u1edbc th\u1ea3i c\u1ea7n \u0111\u01b0\u1ee3c x\u1eed l\u00fd, nh\u01b0ng tu\u1ed5i th\u1ecd k\u00e9o d\u00e0i (10\u201320 n\u0103m so v\u1edbi 3\u20135 n\u0103m \u0111\u1ed1i v\u1edbi \u0111\u1ed3ng tr\u1ea7n) l\u00e0m gi\u1ea3m t\u1ed5ng l\u01b0\u1ee3ng ch\u1ea5t th\u1ea3i v\u1eadt li\u1ec7u trong v\u00f2ng \u0111\u1eddi. Trong h\u01a1n 20 n\u0103m, thanh c\u00e1i m\u1ea1 thi\u1ebfc th\u01b0\u1eddng t\u1ea1o ra \u00edt ch\u1ea5t th\u1ea3i h\u01a1n 40\u201350% so v\u1edbi vi\u1ec7c thay th\u1ebf \u0111\u1ed3ng tr\u1ea7n l\u1eb7p \u0111i l\u1eb7p l\u1ea1i. T\u1eeb g\u00f3c \u0111\u1ed9 b\u1ec1n v\u1eefng, vi\u1ec7c ph\u1ee7 thanh c\u00e1i l\u00e0 l\u1ef1a ch\u1ecdn \u0111\u00fang \u0111\u1eafn cho c\u00e1c c\u00f4ng tr\u00ecnh l\u1eafp \u0111\u1eb7t l\u00e2u d\u00e0i.<\/p>\n<hr>\n<h2>Nh\u1eefng \u0111i\u1ec3m ch\u00ednh<\/h2>\n<ul>\n<li><strong>\u0110\u1ed3ng tr\u1ea7n b\u1eaft \u0111\u1ea7u v\u1edbi \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n 100% nh\u01b0ng xu\u1ed1ng c\u1ea5p nhanh ch\u00f3ng<\/strong> trong \u0111i\u1ec1u ki\u1ec7n \u1ea9m \u01b0\u1edbt; ch\u1ec9 h\u1eefu \u00edch cho c\u00e1c \u1ee9ng d\u1ee5ng kh\u00f4 r\u00e1o, ng\u1eafn h\u1ea1n ho\u1eb7c c\u00e1c thi\u1ebft l\u1eadp t\u1ea1m th\u1eddi c\u00f3 \u00fd th\u1ee9c v\u1ec1 ng\u00e2n s\u00e1ch.<\/li>\n<li><strong>\u0110\u1ed3ng m\u1ea1 thi\u1ebfc l\u00e0 ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p<\/strong> cho thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft c\u00f4ng nghi\u1ec7p, n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o v\u00e0 c\u00e1c c\u1ee5m t\u01b0\u01a1ng th\u00edch v\u1edbi nh\u00f4m; cung c\u1ea5p tu\u1ed5i th\u1ecd 10\u201315 n\u0103m v\u1edbi chi ph\u00ed b\u1ea3o tr\u00ec t\u1ed1i thi\u1ec3u v\u1edbi m\u1ee9c ph\u00ed b\u1ea3o hi\u1ec3m v\u1eeba ph\u1ea3i.<\/li>\n<li><strong>\u0110\u1ed3ng m\u1ea1 b\u1ea1c \u0111\u01b0\u1ee3c d\u00e0nh ri\u00eang cho c\u00e1c \u1ee9ng d\u1ee5ng d\u00f2ng \u0111i\u1ec7n cao, \u0111\u1ed9 tin c\u1eady cao<\/strong> n\u01a1i ph\u1ea3i gi\u1ea3m thi\u1ec3u s\u1ef1 gia t\u0103ng nhi\u1ec7t \u0111\u1ed9 (thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft HV, ph\u00e2n ph\u1ed1i trung t\u00e2m d\u1eef li\u1ec7u) ho\u1eb7c n\u01a1i c\u00e1c ti\u1ebfp \u0111i\u1ec3m tr\u01b0\u1ee3t y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u01b0\u1ee3t tr\u1ed9i.<\/li>\n<li><strong>\u0102n m\u00f2n \u0111i\u1ec7n h\u00f3a l\u00e0 c\u00f3 th\u1eadt<\/strong>: Kh\u00f4ng bao gi\u1edd k\u1ebft n\u1ed1i \u0111\u1ed3ng tr\u1ea7n v\u1edbi nh\u00f4m m\u00e0 kh\u00f4ng c\u00f3 l\u1edbp ph\u1ee7 ho\u1eb7c m\u1ee1 b\u1ea3o v\u1ec7. M\u1ea1 thi\u1ebfc ho\u1eb7c b\u1ea1c l\u00e0 gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt ph\u00f9 h\u1ee3p.<\/li>\n<li><strong>Chi ph\u00ed kh\u00f4ng ph\u1ea3i l\u00e0 y\u1ebfu t\u1ed1 h\u1ea1n ch\u1ebf<\/strong>: M\u1ee9c ph\u00ed b\u1ea3o hi\u1ec3m 50\u2013100% cho m\u1ea1 thi\u1ebfc \u0111\u01b0\u1ee3c thu h\u1ed3i trong v\u00f2ng 2\u20133 n\u0103m \u0111\u1ea7u ti\u00ean th\u00f4ng qua vi\u1ec7c tr\u00e1nh b\u1ea3o tr\u00ec v\u00e0 ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1.<\/li>\n<li><strong>IEC 60947-2 cho ph\u00e9p nhi\u1ec7t \u0111\u1ed9 t\u0103ng cao h\u01a1n \u0111\u1ed1i v\u1edbi c\u00e1c ti\u1ebfp \u0111i\u1ec3m m\u1ea1<\/strong>, c\u00f3 kh\u1ea3 n\u0103ng cho ph\u00e9p c\u00f4ng su\u1ea5t d\u00f2ng \u0111i\u1ec7n cao h\u01a1n m\u1ed9t ch\u00fat m\u1ed9t c\u00e1ch gi\u00e1n ti\u1ebfp\u2014m\u1ed9t l\u1ee3i \u00edch ti\u1ec1m \u1ea9n kh\u00e1c c\u1ee7a vi\u1ec7c \u0111\u1ea7u t\u01b0 l\u1edbp ph\u1ee7.<\/li>\n<\/ul>\n<hr>\n<h2>Ch\u1ecdn \u0110\u1ed9 tin c\u1eady. Ch\u1ecdn VIOX.<\/h2>\n<p>T\u1ea1i VIOX Electric, ch\u00fang t\u00f4i s\u1ea3n xu\u1ea5t thanh c\u00e1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf theo ti\u00eau chu\u1ea9n IEC 60947-2 v\u1edbi quy tr\u00ecnh m\u1ea1 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t. Cho d\u00f9 b\u1ea1n c\u1ea7n \u0111\u1ed3ng tr\u1ea7n \u0111\u1ec3 th\u1eed nghi\u1ec7m, m\u1ea1 thi\u1ebfc \u0111\u1ec3 c\u00f3 \u0111\u1ed9 tin c\u1eady trong c\u00f4ng nghi\u1ec7p hay m\u1ea1 b\u1ea1c cho c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng quan tr\u1ecdng, VIOX \u0111\u1ec1u cung c\u1ea5p l\u1edbp ph\u1ee7 m\u00e0 b\u1ea1n ch\u1ec9 \u0111\u1ecbnh\u2014\u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi chuy\u00ean m\u00f4n k\u1ef9 thu\u1eadt v\u00e0 h\u00e0ng th\u1eadp k\u1ef7 tin c\u1eady trong ng\u00e0nh.<\/p>\n<p><strong>B\u1ea1n c\u00f3 c\u00e2u h\u1ecfi v\u1ec1 l\u1ef1a ch\u1ecdn l\u1edbp ph\u1ee7 thanh c\u00e1i cho \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a m\u00ecnh kh\u00f4ng?<\/strong> \u0110\u1ed9i ng\u0169 k\u1ef9 s\u01b0 c\u1ee7a ch\u00fang t\u00f4i s\u1eb5n s\u00e0ng tr\u1ee3 gi\u00fap. <a href=\"https:\/\/test.viox.com\/vi\/contact\/\">Li\u00ean h\u1ec7 v\u1edbi VIOX ngay h\u00f4m nay<\/a> \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>You&#8217;ve just ordered new busbars for your switchgear panel. The supplier offers three options: bare copper (the cheapest), tin-plated (mid-range), or silver-plated (premium). All carry the same rated current. All meet IEC standards. So why would you ever pay more? Three months after installation, you get a call: a connection joint is running hot. The [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21416,"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-21415","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\/21415","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=21415"}],"version-history":[{"count":1,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/21415\/revisions"}],"predecessor-version":[{"id":21417,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/21415\/revisions\/21417"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/21416"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=21415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=21415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=21415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}