{"id":21660,"date":"2026-03-11T09:18:51","date_gmt":"2026-03-11T01:18:51","guid":{"rendered":"https:\/\/viox.com\/?p=21660"},"modified":"2026-03-11T09:18:54","modified_gmt":"2026-03-11T01:18:54","slug":"mcb-busbar-overheating-causes-fixes","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/mcb-busbar-overheating-causes-fixes\/","title":{"rendered":"T\u1ea1i sao Thanh c\u00e1i MCB c\u1ee7a b\u1ea1n b\u1ecb Qu\u00e1 nhi\u1ec7t? Nguy\u00ean nh\u00e2n, R\u1ee7i ro v\u00e0 C\u00e1ch kh\u1eafc ph\u1ee5c"},"content":{"rendered":"<div class=\"product-intro\">\n<h2>Nguy\u00ean nh\u00e2n g\u00e2y qu\u00e1 nhi\u1ec7t thanh c\u00e1i MCB v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c?<\/h2>\n<p><strong>Qu\u00e1 nhi\u1ec7t thanh c\u00e1i MCB ch\u1ee7 y\u1ebfu do c\u00e1c k\u1ebft n\u1ed1i l\u1ecfng l\u1ebbo, c\u00e1c th\u00e0nh ph\u1ea7n kh\u00f4ng \u0111\u1ee7 k\u00edch th\u01b0\u1edbc, c\u0103n ch\u1ec9nh kh\u00f4ng \u0111\u00fang ho\u1eb7c b\u1ecb oxy h\u00f3a. Nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0y t\u1ea1o ra c\u00e1c \u0111i\u1ec3m c\u00f3 \u0111i\u1ec7n tr\u1edf cao, t\u1ea1o ra nhi\u1ec7t qu\u00e1 m\u1ee9c th\u00f4ng qua t\u1ed5n th\u1ea5t I\u00b2R, c\u00f3 kh\u1ea3 n\u0103ng d\u1eabn \u0111\u1ebfn nguy c\u01a1 h\u1ecfa ho\u1ea1n v\u00e0 h\u1ecfng h\u00f3c h\u1ec7 th\u1ed1ng. C\u00e1c bi\u1ec7n ph\u00e1p kh\u1eafc ph\u1ee5c ngay l\u1eadp t\u1ee9c bao g\u1ed3m si\u1ebft l\u1ea1i c\u00e1c k\u1ebft n\u1ed1i v\u1edbi m\u00f4-men xo\u1eafn 2,5-3,5 N\u00b7m, thay th\u1ebf c\u00e1c thanh c\u00e1i b\u1ecb h\u01b0 h\u1ecfng r\u00f5 r\u00e0ng v\u00e0 x\u00e1c minh \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n ph\u00f9 h\u1ee3p.<\/strong><\/p>\n<p>Qu\u00e1 nhi\u1ec7t thanh c\u00e1i l\u00e0 m\u1ed9t trong nh\u1eefng v\u1ea5n \u0111\u1ec1 nguy hi\u1ec3m nh\u01b0ng b\u1ecb b\u1ecf qua nhi\u1ec1u nh\u1ea5t trong t\u1ee7 \u0111i\u1ec7n. Kh\u00f4ng gi\u1ed1ng nh\u01b0 \u0111o\u1ea3n m\u1ea1ch l\u00e0m ng\u1eaft m\u1ea1ch ngay l\u1eadp t\u1ee9c, s\u1ef1 suy gi\u1ea3m nhi\u1ec7t x\u1ea3y ra ch\u1eadm\u2014th\u01b0\u1eddng kh\u00f4ng b\u1ecb ph\u00e1t hi\u1ec7n cho \u0111\u1ebfn khi b\u1ea1n th\u1ea5y nh\u1ef1a b\u1ecb n\u00f3ng ch\u1ea3y ho\u1eb7c ng\u1eedi th\u1ea5y m\u00f9i kh\u00e9t. \u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 th\u1ea7u \u0111i\u1ec7n v\u00e0 ng\u01b0\u1eddi qu\u1ea3n l\u00fd c\u01a1 s\u1edf, vi\u1ec7c ph\u00e1t hi\u1ec7n s\u1edbm \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba h\u1ecfa ho\u1ea1n, h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb v\u00e0 th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng t\u1ed1n k\u00e9m.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Thermal-damage-on-MCB-busbar-with-VIOX-panel.webp\" alt=\"Thermal damage on MCB busbar with VIOX panel\" \/><figcaption><em>H\u01b0 h\u1ecfng do nhi\u1ec7t tr\u00ean thanh c\u00e1i MCB v\u1edbi t\u1ee7 \u0111i\u1ec7n VIOX<\/em><\/figcaption><\/figure>\n<h2>Nh\u1eefng \u0111i\u1ec3m ch\u00ednh<\/h2>\n<ul>\n<li><strong>V\u00edt \u0111\u1ea7u cu\u1ed1i b\u1ecb l\u1ecfng<\/strong> l\u00e0 nguy\u00ean nh\u00e2n ch\u00ednh\u2014m\u1ed9t k\u1ebft n\u1ed1i \u0111\u00e1ng l\u1ebd ph\u1ea3i l\u00e0 50 microohm c\u00f3 th\u1ec3 t\u0103ng l\u00ean 200+ microohm khi b\u1ecb l\u1ecfng, t\u1ea1o ra \u0111\u1ee7 nhi\u1ec7t \u0111\u1ec3 l\u00e0m ch\u1ea3y nh\u1ef1a<\/li>\n<li><strong>M\u00f4-men xo\u1eafn ph\u00f9 h\u1ee3p (2,5-3,5 N\u00b7m cho MCB d\u00e2n d\u1ee5ng)<\/strong> l\u00e0 \u0111i\u1ec1u kh\u00f4ng th\u1ec3 th\u01b0\u01a1ng l\u01b0\u1ee3ng\u2014si\u1ebft b\u1eb1ng tay l\u00e0 kh\u00f4ng \u0111\u1ee7<\/li>\n<li><strong>\u1ea2nh nhi\u1ec7t<\/strong> ph\u00e1t hi\u1ec7n c\u00e1c v\u1ea5n \u0111\u1ec1 tr\u01b0\u1edbc khi x\u1ea3y ra h\u01b0 h\u1ecfng c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y\u2014h\u00e3y t\u00ecm s\u1ef1 kh\u00e1c bi\u1ec7t 10-15\u00b0C gi\u1eefa c\u00e1c k\u1ebft n\u1ed1i t\u01b0\u01a1ng t\u1ef1<\/li>\n<li><strong>Oxy h\u00f3a \u0111\u1ed3ng<\/strong> l\u00e0m t\u0103ng \u0111i\u1ec7n tr\u1edf theo th\u1eddi gian, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt ho\u1eb7c ven bi\u1ec3n<\/li>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9 tr\u00ean 70\u00b0C so v\u1edbi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng<\/strong> c\u00f3 ngh\u0129a l\u00e0 c\u1ea7n h\u00e0nh \u0111\u1ed9ng ngay l\u1eadp t\u1ee9c\u2014b\u1ea1n \u0111ang \u1edf trong v\u00f9ng nguy hi\u1ec3m<\/li>\n<li><strong>S\u1ef1 \u0111\u1ed5i m\u00e0u c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y<\/strong> (\u0111\u1ed3ng m\u00e0u n\u00e2u\/\u0111en, nh\u1ef1a b\u1ecb v\u00e0ng) c\u00f3 ngh\u0129a l\u00e0 thanh c\u00e1i ph\u1ea3i \u0111\u01b0\u1ee3c thay th\u1ebf, kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa<\/li>\n<\/ul>\n<h2>T\u00ecm hi\u1ec3u v\u1ec1 Ch\u1ee9c n\u0103ng v\u00e0 Gi\u1edbi h\u1ea1n Nhi\u1ec7t c\u1ee7a Thanh c\u00e1i MCB<\/h2>\n<p>Thanh c\u00e1i MCB ph\u00e2n ph\u1ed1i \u0111i\u1ec7n t\u1eeb b\u1ed9 ng\u1eaft m\u1ea1ch ch\u00ednh c\u1ee7a b\u1ea1n \u0111\u1ebfn nhi\u1ec1u b\u1ed9 ng\u1eaft m\u1ea1ch song song. C\u00e1c thanh \u0111\u1ed3ng ho\u1eb7c nh\u00f4m n\u00e0y ph\u1ea3i mang d\u00f2ng \u0111i\u1ec7n cao trong khi v\u1eabn duy tr\u00ec \u0111i\u1ec7n tr\u1edf th\u1ea5p\u2014b\u1ea5t k\u1ef3 s\u1ef1 gia t\u0103ng \u0111i\u1ec7n tr\u1edf n\u00e0o c\u0169ng c\u00f3 ngh\u0129a l\u00e0 sinh nhi\u1ec7t.<\/p>\n<p>Trong \u0111i\u1ec1u ki\u1ec7n b\u00ecnh th\u01b0\u1eddng, thanh c\u00e1i ho\u1ea1t \u0111\u1ed9ng \u1ea5m do gia nhi\u1ec7t \u0111i\u1ec7n tr\u1edf (t\u1ed5n th\u1ea5t I\u00b2R). C\u00e1c ti\u00eau chu\u1ea9n IEC 60947-2 v\u00e0 UL 489 cho ph\u00e9p nhi\u1ec7t \u0111\u1ed9 t\u0103ng 50-70\u00b0C so v\u1edbi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng (th\u01b0\u1eddng l\u00e0 40\u00b0C). V\u01b0\u1ee3t qua ng\u01b0\u1ee1ng \u0111\u00f3, b\u1ea1n \u0111ang \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh ph\u00e1 v\u1ee1 l\u1edbp c\u00e1ch \u0111i\u1ec7n, t\u0103ng qu\u00e1 tr\u00ecnh oxy h\u00f3a v\u00e0 t\u1ea1o ra nguy c\u01a1 h\u1ecfa ho\u1ea1n.<\/p>\n<p>V\u1ea5n \u0111\u1ec1 l\u00e0: \u0111i\u1ec7n tr\u1edf c\u1ee7a \u0111\u1ed3ng t\u0103ng 0,4%\/\u00b0C. Khi n\u00f3 n\u00f3ng l\u00ean, \u0111i\u1ec7n tr\u1edf t\u0103ng l\u00ean, t\u1ea1o ra nhi\u1ec1u nhi\u1ec7t h\u01a1n\u2014m\u1ed9t v\u00f2ng ph\u1ea3n h\u1ed3i c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t n\u1ebfu nhi\u1ec7t kh\u00f4ng th\u1ec3 tho\u00e1t ra \u0111\u1ee7 nhanh.<\/p>\n<h2>Nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra qu\u00e1 nhi\u1ec7t thanh c\u00e1i MCB<\/h2>\n<h3>1. K\u1ebft n\u1ed1i \u0111\u1ea7u cu\u1ed1i l\u1ecfng l\u1ebbo (Th\u1ee7 ph\u1ea1m ch\u00ednh)<\/h3>\n<p>Khi v\u00edt \u0111\u1ea7u cu\u1ed1i kh\u00f4ng \u0111\u01b0\u1ee3c si\u1ebft \u0111\u00fang c\u00e1ch ho\u1eb7c b\u1ecb l\u1ecfng theo th\u1eddi gian, di\u1ec7n t\u00edch ti\u1ebfp x\u00fac s\u1ebd gi\u1ea3m \u0111\u00e1ng k\u1ec3. D\u00f2ng \u0111i\u1ec7n b\u1ecb \u00e9p qua m\u1ed9t m\u1eb7t c\u1eaft nh\u1ecf h\u01a1n, t\u1ea1o ra m\u1ed9t \u0111i\u1ec3m n\u00f3ng.<\/p>\n<p>V\u1eadt l\u00fd: gi\u1ea3m 50% \u00e1p su\u1ea5t ti\u1ebfp x\u00fac c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111i\u1ec7n tr\u1edf t\u1eeb 300-500%. \u1ede t\u1ea3i 32A, m\u1ed9t k\u1ebft n\u1ed1i b\u1ecb suy gi\u1ea3m t\u1eeb 50 xu\u1ed1ng 200 microohm t\u1ea1o ra th\u00eam 0,2 watt nhi\u1ec7t\u2014\u0111\u1ee7 \u0111\u1ec3 t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee5c b\u1ed9 l\u00ean 40-60\u00b0C trong m\u1ed9t t\u1ee7 \u0111i\u1ec7n th\u00f4ng gi\u00f3 k\u00e9m.<\/p>\n<p><strong>T\u1ea1i sao c\u00e1c k\u1ebft n\u1ed1i b\u1ecb l\u1ecfng theo th\u1eddi gian:<\/strong> \u0110\u1ed3ng gi\u00e3n n\u1edf 17 ppm\/\u00b0C trong khi v\u00edt th\u00e9p ch\u1ec9 gi\u00e3n n\u1edf 11-13 ppm\/\u00b0C. M\u1ed7i chu k\u1ef3 gia nhi\u1ec7t\/l\u00e0m m\u00e1t d\u1ea7n d\u1ea7n l\u00e0m gi\u1ea3m \u00e1p su\u1ea5t k\u1eb9p. \u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c t\u1ee7 \u0111i\u1ec7n v\u01b0\u1ee3t qua ki\u1ec3m tra ban \u0111\u1ea7u c\u00f3 th\u1ec3 ph\u00e1t sinh s\u1ef1 c\u1ed1 sau v\u00e0i th\u00e1ng. T\u00ecm hi\u1ec3u <a href=\"https:\/\/test.viox.com\/vi\/top-5-mistakes-to-avoid-when-installing-mcb-busbars\/\">c\u00e1c l\u1ed7i l\u1eafp \u0111\u1eb7t ph\u1ed5 bi\u1ebfn khi l\u1eafp \u0111\u1eb7t thanh c\u00e1i MCB<\/a> gi\u00fap ng\u0103n ng\u1eeba nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y ngay t\u1eeb \u0111\u1ea7u.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Proper-torque-application-on-VIOX-MCB-busbar.webp\" alt=\"Proper torque application on VIOX MCB busbar\" \/><figcaption><em>\u1ee8ng d\u1ee5ng m\u00f4-men xo\u1eafn ph\u00f9 h\u1ee3p tr\u00ean VIOX <a href=\"https:\/\/test.viox.com\/vi\/mcb\/\">thanh c\u00e1i MCB<\/a><\/em><\/figcaption><\/figure>\n<h3>2. M\u1eb7t c\u1eaft ngang thanh c\u00e1i kh\u00f4ng \u0111\u1ee7 k\u00edch th\u01b0\u1edbc<\/h3>\n<p>S\u1eed d\u1ee5ng thanh c\u00e1i \u0111\u1ecbnh m\u1ee9c 63A tr\u00ean m\u1ed9t t\u1ee7 \u0111i\u1ec7n c\u00f3 b\u1ed9 ng\u1eaft m\u1ea1ch ch\u00ednh 100A v\u00e0 nhi\u1ec1u m\u1ea1ch d\u00f2ng \u0111i\u1ec7n cao t\u1ea1o ra t\u00ecnh tr\u1ea1ng qu\u00e1 t\u1ea3i m\u00e3n t\u00ednh. Ngay c\u1ea3 khi c\u00e1c MCB ri\u00eang l\u1ebb kh\u00f4ng bao gi\u1edd ng\u1eaft, d\u00f2ng \u0111i\u1ec7n t\u00edch l\u0169y qua thanh c\u00e1i c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 \u0111\u1ecbnh m\u1ee9c nhi\u1ec7t c\u1ee7a n\u00f3 trong th\u1eddi gian nhu c\u1ea7u cao \u0111i\u1ec3m.<\/p>\n<p><strong>Th\u1ebf gi\u1edbi th\u1ef1c, v\u00ed d\u1ee5:<\/strong> Thanh c\u00e1i d\u00e2n d\u1ee5ng ti\u00eau chu\u1ea9n c\u00f3 k\u00edch th\u01b0\u1edbc t\u1eeb 10\u00d72mm (20mm\u00b2) cho h\u1ec7 th\u1ed1ng 63A \u0111\u1ebfn 15\u00d75mm (75mm\u00b2) cho c\u00e1c \u1ee9ng d\u1ee5ng 125A. M\u1ed9t thanh c\u00e1i \u1edf c\u00f4ng su\u1ea5t 80% c\u00f3 th\u1ec3 ch\u1ea1y cao h\u01a1n nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng 30\u00b0C\u2014c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c. \u0110\u1ea9y n\u00f3 l\u00ean 120% v\u00e0 b\u1ea1n \u0111ang th\u1ea5y 90-100\u00b0C, n\u1eb1m trong v\u00f9ng nguy hi\u1ec3m.<\/p>\n<p>\u0110i\u1ec1u quan tr\u1ecdng l\u00e0 t\u00ednh to\u00e1n nhu c\u1ea7u \u0111\u1ed3ng th\u1eddi t\u1ed1i \u0111a, kh\u00f4ng ch\u1ec9 c\u1ed9ng t\u1ed5ng \u0111\u1ecbnh m\u1ee9c MCB. C\u00e1c ng\u00f4i nh\u00e0 hi\u1ec7n \u0111\u1ea1i c\u00f3 s\u1ea1c xe \u0111i\u1ec7n, m\u00e1y b\u01a1m nhi\u1ec7t v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n c\u00f4ng su\u1ea5t cao ti\u00eau th\u1ee5 nhi\u1ec1u h\u01a1n so v\u1edbi c\u00e1c t\u00ednh to\u00e1n h\u1ec7 s\u1ed1 \u0111a d\u1ea1ng c\u0169. L\u1ef1a ch\u1ecdn <a href=\"https:\/\/test.viox.com\/vi\/how-to-select-the-right-busbar-for-mcb\/\">thanh c\u00e1i ph\u00f9 h\u1ee3p cho h\u1ec7 th\u1ed1ng MCB<\/a> \u0111\u00f2i h\u1ecfi ph\u1ea3i t\u00ednh \u0111\u1ebfn c\u00e1c ki\u1ec3u t\u1ea3i m\u1edbi n\u00e0y.<\/p>\n<h3>3. C\u0103n ch\u1ec9nh v\u00e0 L\u1eafp \u0111\u1eb7t Kh\u00f4ng \u0110\u00fang C\u00e1ch<\/h3>\n<p>Thanh c\u00e1i ki\u1ec3u l\u01b0\u1ee3c ph\u1ea3i \u0103n kh\u1edbp \u0111\u1ed3ng th\u1eddi v\u1edbi nhi\u1ec1u \u0111\u1ea7u cu\u1ed1i MCB. N\u1ebfu thanh c\u00e1i n\u1eb1m \u1edf m\u1ed9t g\u00f3c ho\u1eb7c kh\u00f4ng ho\u00e0n to\u00e0n n\u1eb1m trong r\u00e3nh \u0111\u1ea7u cu\u1ed1i, ch\u1ec9 m\u1ed9t ph\u1ea7n di\u1ec7n t\u00edch ti\u1ebfp x\u00fac \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf mang d\u00f2ng \u0111i\u1ec7n\u2014t\u1ea1o ra c\u00e1c \u0111i\u1ec3m n\u00f3ng c\u00f3 \u0111i\u1ec7n tr\u1edf cao.<\/p>\n<p><strong>Th\u1ef1c t\u1ebf t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng:<\/strong> M\u1ed9t s\u1ed1 ng\u01b0\u1eddi l\u1eafp \u0111\u1eb7t \u00e9p c\u00e1c th\u00e0nh ph\u1ea7n kh\u00f4ng t\u01b0\u01a1ng th\u00edch l\u1ea1i v\u1edbi nhau. K\u1ebft n\u1ed1i tr\u00f4ng c\u00f3 v\u1ebb an to\u00e0n nh\u01b0ng l\u1ea1i c\u00f3 \u0111i\u1ec7n tr\u1edf cao khi c\u00f3 t\u1ea3i. \u0110\u1ed9 rung c\u1ee7a t\u1ee7 \u0111i\u1ec7n t\u1eeb thi\u1ebft b\u1ecb HVAC g\u1ea7n \u0111\u00f3 ho\u1eb7c ho\u1ea1t \u0111\u1ed9ng \u0111\u1ecba ch\u1ea5n c\u0169ng c\u00f3 th\u1ec3 l\u00e0m x\u00e1o tr\u1ed9n s\u1ef1 c\u0103n ch\u1ec9nh sau khi l\u1eafp \u0111\u1eb7t.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Technical-cutaway-diagram-of-MCB-busbar-connection.webp\" alt=\"Technical cutaway diagram of MCB busbar connection - VIOX\" \/><figcaption><em>S\u01a1 \u0111\u1ed3 c\u1eaft k\u1ef9 thu\u1eadt c\u1ee7a k\u1ebft n\u1ed1i thanh c\u00e1i MCB \u2013 VIOX<\/em><\/figcaption><\/figure>\n<h3>4. Oxy h\u00f3a v\u00e0 \u00d4 nhi\u1ec5m B\u1ec1 m\u1eb7t<\/h3>\n<p>Oxit \u0111\u1ed3ng (Cu\u2082O v\u00e0 CuO) c\u00f3 \u0111i\u1ec7n tr\u1edf su\u1ea5t cao h\u01a1n 1.000.000 l\u1ea7n so v\u1edbi \u0111\u1ed3ng nguy\u00ean ch\u1ea5t. Ngay c\u1ea3 c\u00e1c l\u1edbp oxit m\u1ecfng c\u0169ng t\u1ea1o ra c\u00e1c r\u00e0o c\u1ea3n c\u00e1ch \u0111i\u1ec7n t\u1ea1i c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac.<\/p>\n<p><strong>C\u00e1c y\u1ebfu t\u1ed1 th\u00fac \u0111\u1ea9y m\u00f4i tr\u01b0\u1eddng:<\/strong> \u0110\u1ed9 \u1ea9m, h\u01a1i mu\u1ed1i \u1edf c\u00e1c khu v\u1ef1c ven bi\u1ec3n, ch\u1ea5t \u00f4 nhi\u1ec5m c\u00f4ng nghi\u1ec7p v\u00e0 chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 \u0111\u1ec1u l\u00e0m t\u0103ng t\u1ed1c qu\u00e1 tr\u00ecnh oxy h\u00f3a. Nh\u00f4m th\u1eadm ch\u00ed c\u00f2n t\u1ec7 h\u01a1n\u2014n\u00f3 t\u1ea1o th\u00e0nh oxit nh\u00f4m (Al\u2082O\u2083) g\u1ea7n nh\u01b0 ngay l\u1eadp t\u1ee9c khi ti\u1ebfp x\u00fac v\u1edbi kh\u00f4ng kh\u00ed.<\/p>\n<p><strong>\u0110i\u1ec1u m\u00e0 h\u1ea7u h\u1ebft nh\u1eefng ng\u01b0\u1eddi l\u1eafp \u0111\u1eb7t b\u1ecf qua:<\/strong> Chu\u1ea9n b\u1ecb b\u1ec1 m\u1eb7t \u0111\u00fang c\u00e1ch bao g\u1ed3m lo\u1ea1i b\u1ecf c\u00e1c l\u1edbp oxit b\u1eb1ng v\u1ea3i nh\u00e1m ho\u1eb7c ch\u1ea5t l\u00e0m s\u1ea1ch ti\u1ebfp \u0111i\u1ec3m, sau \u0111\u00f3 b\u00f4i h\u1ee3p ch\u1ea5t ti\u1ebfp x\u00fac \u0111i\u1ec7n. Nhi\u1ec1u ng\u01b0\u1eddi ch\u1ec9 d\u1ef1a v\u00e0o \u00e1p su\u1ea5t c\u01a1 h\u1ecdc \u0111\u1ec3 ph\u00e1 v\u1ee1 c\u00e1c l\u1edbp m\u00e0ng oxit\u2014\u0111i\u1ec1u n\u00e0y ban \u0111\u1ea7u c\u00f3 t\u00e1c d\u1ee5ng nh\u01b0ng s\u1ebd xu\u1ed1ng c\u1ea5p theo th\u1eddi gian khi oxit t\u00e1i t\u1ea1o.<\/p>\n<h3>5. D\u00f2ng \u0110i\u1ec7n T\u1ea3i Qu\u00e1 M\u1ee9c<\/h3>\n<p>Trong khi <a href=\"https:\/\/test.viox.com\/vi\/how-to-choose-the-right-miniature-circuit-breaker\/\">MCB b\u1ea3o v\u1ec7 c\u00e1c m\u1ea1ch h\u1ea1 ngu\u1ed3n<\/a>, b\u1ea3n th\u00e2n thanh c\u00e1i th\u01b0\u1eddng thi\u1ebfu b\u1ea3o v\u1ec7 nhi\u1ec7t chuy\u00ean d\u1ee5ng. N\u1ebfu nhi\u1ec1u m\u1ea1ch \u0111\u1ed3ng th\u1eddi h\u00fat d\u00f2ng \u0111i\u1ec7n g\u1ea7n v\u1edbi \u0111\u1ecbnh m\u1ee9c c\u1ee7a ch\u00fang, d\u00f2ng \u0111i\u1ec7n thanh c\u00e1i c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n thi\u1ebft k\u1ebf m\u00e0 kh\u00f4ng l\u00e0m ng\u1eaft b\u1ea5t k\u1ef3 b\u1ed9 ng\u1eaft m\u1ea1ch n\u00e0o.<\/p>\n<p><strong>Th\u00e1ch th\u1ee9c hi\u1ec7n \u0111\u1ea1i:<\/strong> D\u00f2ng \u0111i\u1ec7n h\u00e0i t\u1eeb \u1ed5 \u0111\u0129a t\u1ea7n s\u1ed1 thay \u0111\u1ed5i, ngu\u1ed3n \u0111i\u1ec7n ch\u1ebf \u0111\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 \u0111\u00e8n LED g\u00f3p ph\u1ea7n l\u00e0m n\u00f3ng v\u01b0\u1ee3t qu\u00e1 nh\u1eefng g\u00ec c\u00e1c ph\u00e9p \u0111o d\u00f2ng \u0111i\u1ec7n RMS cho th\u1ea5y. D\u00f2ng \u0111i\u1ec7n h\u00e0i b\u1eadc ba c\u1ed9ng s\u1ed1 h\u1ecdc trong thanh c\u00e1i trung t\u00ednh thay v\u00ec tri\u1ec7t ti\u00eau\u2014d\u00f2ng \u0111i\u1ec7n thanh c\u00e1i trung t\u00ednh th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 d\u00f2ng \u0111i\u1ec7n pha.<\/p>\n<h2>R\u1ee7i ro v\u00e0 H\u1eadu qu\u1ea3 c\u1ee7a Thanh c\u00e1i Qu\u00e1 nhi\u1ec7t<\/h2>\n<h3>Nguy c\u01a1 H\u1ecfa ho\u1ea1n v\u00e0 Nguy c\u01a1 H\u1ed3 quang \u0110i\u1ec7n<\/h3>\n<p>T\u1ee7 \u0111i\u1ec7n MCB s\u1eed d\u1ee5ng nh\u1ef1a nhi\u1ec7t d\u1ebbo ch\u1ed1ng ch\u00e1y \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c cho ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c \u1edf 90-120\u00b0C. Khi nhi\u1ec7t \u0111\u1ed9 thanh c\u00e1i v\u01b0\u1ee3t qu\u00e1 c\u00e1c gi\u1edbi h\u1ea1n n\u00e0y, nh\u1ef1a s\u1ebd m\u1ec1m ra, bi\u1ebfn d\u1ea1ng v\u00e0 gi\u1ea3i ph\u00f3ng c\u00e1c h\u1ee3p ch\u1ea5t d\u1ec5 bay h\u01a1i. Trong tr\u01b0\u1eddng h\u1ee3p nghi\u00eam tr\u1ecdng, n\u00f3 s\u1ebd b\u1ed1c ch\u00e1y.<\/p>\n<p><strong>Qu\u00e1 tr\u00ecnh:<\/strong> S\u1ef1 suy gi\u1ea3m ban \u0111\u1ea7u t\u1ea1o ra s\u1ef1 \u0111\u1ed5i m\u00e0u v\u00e0 than h\u00f3a. Khi l\u1edbp c\u00e1ch \u0111i\u1ec7n b\u1ecb ph\u00e1 v\u1ee1, c\u00e1c \u0111\u01b0\u1eddng d\u1eabn theo d\u00f5i carbon h\u00ecnh th\u00e0nh, t\u1ea1o ra c\u00e1c \u0111\u01b0\u1eddng d\u1eabn cho d\u00f2ng \u0111i\u1ec7n r\u00f2 r\u1ec9. C\u00e1c \u0111\u01b0\u1eddng d\u1eabn n\u00e0y duy tr\u00ec h\u1ed3 quang ngay c\u1ea3 sau khi lo\u1ea1i b\u1ecf qu\u00e1 t\u1ea3i, cu\u1ed1i c\u00f9ng l\u00e0m ch\u00e1y c\u00e1c v\u1eadt li\u1ec7u xung quanh.<\/p>\n<p><strong>Nguy hi\u1ec3m h\u1ed3 quang \u0111i\u1ec7n:<\/strong> Khi c\u00e1c k\u1ebft n\u1ed1i b\u1ecb suy gi\u1ea3m cu\u1ed1i c\u00f9ng b\u1ecb h\u1ecfng m\u1ed9t c\u00e1ch th\u1ea3m kh\u1ed1c, ch\u00fang t\u1ea1o ra c\u00e1c h\u1ed3 quang n\u0103ng l\u01b0\u1ee3ng cao \u0111\u1ea1t t\u1edbi 35.000\u00b0F (19.400\u00b0C). N\u0103ng l\u01b0\u1ee3ng n\u1ed5 l\u00e0m bay h\u01a1i \u0111\u1ed3ng, t\u1ea1o ra s\u00f3ng \u00e1p su\u1ea5t v\u00e0 chi\u1ebfu kim lo\u1ea1i n\u00f3ng ch\u1ea3y kh\u1eafp v\u1ecf b\u1ecdc.<\/p>\n<h3>H\u01b0 h\u1ecfng Thi\u1ebft b\u1ecb v\u00e0 Th\u1eddi gian Ng\u1eebng Ho\u1ea1t \u0111\u1ed9ng<\/h3>\n<p>Nhi\u1ec7t d\u1eabn d\u1ecdc theo thanh c\u00e1i, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c k\u1ebft n\u1ed1i MCB li\u1ec1n k\u1ec1 v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m h\u1ecfng ch\u00ednh c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch. MCB ch\u1ee9a c\u00e1c ph\u1ea7n t\u1eed ng\u1eaft nhi\u1ec7t \u0111\u01b0\u1ee3c hi\u1ec7u ch\u1ec9nh theo nhi\u1ec7t \u0111\u1ed9 c\u1ee5 th\u1ec3\u2014nhi\u1ec7t b\u00ean ngo\u00e0i qu\u00e1 m\u1ee9c l\u00e0m thay \u0111\u1ed5i hi\u1ec7u chu\u1ea9n, g\u00e2y ra ng\u1eaft m\u1ea1ch phi\u1ec1n to\u00e1i ho\u1eb7c kh\u00f4ng ng\u1eaft m\u1ea1ch trong c\u00e1c s\u1ef1 c\u1ed1 th\u1ef1c t\u1ebf.<\/p>\n<p><strong>T\u00e1c \u0111\u1ed9ng kinh t\u1ebf:<\/strong> Th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng ngo\u00e0i k\u1ebf ho\u1ea1ch trong c\u00e1c c\u01a1 s\u1edf th\u01b0\u01a1ng m\u1ea1i c\u00f3 th\u1ec3 t\u1ed1n h\u00e0ng ngh\u00ecn \u0111\u1ebfn h\u00e0ng tri\u1ec7u \u0111\u00f4 la m\u1ed7i gi\u1edd. C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng quan tr\u1ecdng nh\u01b0 trung t\u00e2m d\u1eef li\u1ec7u, b\u1ec7nh vi\u1ec7n v\u00e0 nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t y\u00eau c\u1ea7u kh\u00f4i ph\u1ee5c ngu\u1ed3n \u0111i\u1ec7n ngay l\u1eadp t\u1ee9c\u2014g\u1ecdi d\u1ecbch v\u1ee5 kh\u1ea9n c\u1ea5p, c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c giao nhanh, l\u00e0m th\u00eam gi\u1edd.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Comparison-of-proper-vs-faulty-MCB-busbar-installation.webp\" alt=\"Comparison of proper vs faulty MCB busbar installation - VIOX\" \/><figcaption><em>So s\u00e1nh l\u1eafp \u0111\u1eb7t thanh c\u00e1i MCB \u0111\u00fang c\u00e1ch so v\u1edbi l\u1eafp \u0111\u1eb7t b\u1ecb l\u1ed7i \u2013 VIOX<\/em><\/figcaption><\/figure>\n<h2>C\u00e1ch Ph\u00e1t Hi\u1ec7n Thanh C\u00e1i Qu\u00e1 Nhi\u1ec7t<\/h2>\n<h3>Ch\u1ee5p \u1ea2nh Nhi\u1ec7t (Hi\u1ec7u Qu\u1ea3 Nh\u1ea5t)<\/h3>\n<p>Camera h\u1ed3ng ngo\u1ea1i ph\u00e1t hi\u1ec7n c\u00e1c \u0111i\u1ec3m n\u00f3ng tr\u01b0\u1edbc khi x\u1ea3y ra h\u01b0 h\u1ecfng c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y. Qu\u00e9t c\u00e1c b\u1ea3ng \u0111i\u1ec7n trong \u0111i\u1ec1u ki\u1ec7n t\u1ea3i g\u1ea7n v\u1edbi nhu c\u1ea7u t\u1ed1i \u0111a\u2014c\u00e1c b\u1ea5t th\u01b0\u1eddng v\u1ec1 nhi\u1ec7t tr\u1edf n\u00ean r\u00f5 r\u1ec7t h\u01a1n khi d\u00f2ng \u0111i\u1ec7n t\u0103ng l\u00ean.<\/p>\n<p><strong>Nh\u1eefng \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd:<\/strong><\/p>\n<ul>\n<li>Ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 10-15\u00b0C gi\u1eefa c\u00e1c k\u1ebft n\u1ed1i t\u01b0\u01a1ng t\u1ef1 = v\u1ea5n \u0111\u1ec1 \u0111ang ph\u00e1t tri\u1ec3n<\/li>\n<li>Ch\u00eanh l\u1ec7ch v\u01b0\u1ee3t qu\u00e1 30\u00b0C = t\u00ecnh tr\u1ea1ng kh\u1ea9n c\u1ea5p c\u1ea7n h\u00e0nh \u0111\u1ed9ng ngay l\u1eadp t\u1ee9c<\/li>\n<li>M\u1ed9t \u0111i\u1ec3m n\u00f3ng duy nh\u1ea5t = k\u1ebft n\u1ed1i l\u1ecfng l\u1ebbo c\u1ee5c b\u1ed9<\/li>\n<li>Nhi\u1ec7t \u0111\u1ed9 t\u0103ng \u0111\u1ec1u tr\u00ean to\u00e0n b\u1ed9 ph\u1ea7n thanh c\u00e1i = k\u00edch th\u01b0\u1edbc kh\u00f4ng ph\u00f9 h\u1ee3p ho\u1eb7c qu\u00e1 t\u1ea3i<\/li>\n<\/ul>\n<p><strong>Pro m\u1eb9o:<\/strong> \u0110\u1ed3ng tr\u1ea7n c\u00f3 \u0111\u1ed9 ph\u00e1t x\u1ea1 th\u1ea5p (0,05-0,15), c\u00f3 v\u1ebb m\u00e1t h\u01a1n nhi\u1ec7t \u0111\u1ed9 th\u1ef1c t\u1ebf. \u0110\u1ed3ng b\u1ecb oxy h\u00f3a v\u00e0 c\u00e1c b\u1ec1 m\u1eb7t s\u01a1n c\u00f3 \u0111\u1ed9 ph\u00e1t x\u1ea1 cao h\u01a1n (0,8-0,95), cho k\u1ebft qu\u1ea3 \u0111\u1ecdc ch\u00ednh x\u00e1c h\u01a1n. S\u1eed d\u1ee5ng ph\u00e2n t\u00edch so s\u00e1nh thay v\u00ec c\u00e1c gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i.<\/p>\n<h3>Ki\u1ec3m tra tr\u1ef1c quan<\/h3>\n<p><strong>S\u1ef1 \u0111\u1ed5i m\u00e0u c\u1ee7a \u0111\u1ed3ng:<\/strong> Cam s\u00e1ng \u2192 n\u00e2u s\u1eabm\/\u0111en khi c\u00e1c l\u1edbp oxit d\u00e0y l\u00ean. Qu\u00e1 nhi\u1ec7t nghi\u00eam tr\u1ecdng t\u1ea1o ra v\u1ebft x\u1ec9n m\u00e0u t\u00edm ho\u1eb7c xanh lam.<\/p>\n<p><strong>H\u01b0 h\u1ecfng nh\u1ef1a:<\/strong> Tr\u1eafng\/x\u00e1m nh\u1ea1t \u2192 v\u00e0ng \u2192 n\u00e2u \u2192 \u0111en khi nh\u1ef1a xu\u1ed1ng c\u1ea5p. Cong v\u00eanh, n\u00f3ng ch\u1ea3y ho\u1eb7c bi\u1ebfn d\u1ea1ng cho th\u1ea5y nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n nhi\u1ec1u so v\u1edbi gi\u1edbi h\u1ea1n b\u00ecnh th\u01b0\u1eddng.<\/p>\n<p><strong>C\u00e1c ch\u1ec9 s\u1ed1 c\u01a1 h\u1ecdc:<\/strong> \u1ed0c v\u00edt l\u1ecfng l\u1ebbo m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 v\u1eb7n b\u1eb1ng tay, mu\u1ed1i \u0111\u1ed3ng m\u00e0u xanh l\u00e1 c\u00e2y (\u0103n m\u00f2n), oxit nh\u00f4m tr\u1eafng, v\u1ebft n\u1ee9t tr\u00ean l\u1edbp c\u00e1ch \u0111i\u1ec7n, khe h\u1edf c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y gi\u1eefa thanh c\u00e1i v\u00e0 c\u00e1c \u0111\u1ea7u n\u1ed1i MCB.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Thermal-analysis-diagram-of-MCB-busbar-distribution.webp\" alt=\"Thermal analysis diagram of MCB busbar distribution - VIOX\" \/><figcaption><em>S\u01a1 \u0111\u1ed3 ph\u00e2n t\u00edch nhi\u1ec7t c\u1ee7a ph\u00e2n ph\u1ed1i thanh c\u00e1i MCB \u2013 VIOX<\/em><\/figcaption><\/figure>\n<h3>Ki\u1ec3m Tra \u0110i\u1ec7n Th\u1ef1c T\u1ebf<\/h3>\n<p><strong>Ki\u1ec3m tra b\u1eb1ng ampe k\u00ecm \u0111\u01a1n gi\u1ea3n:<\/strong> \u0110o d\u00f2ng \u0111i\u1ec7n t\u1ea1i c\u1ea7u dao ch\u00ednh v\u00e0 so s\u00e1nh v\u1edbi t\u1ed5ng c\u1ee7a c\u00e1c m\u1ea1ch ri\u00eang l\u1ebb. S\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 cho th\u1ea5y c\u00e1c v\u1ea5n \u0111\u1ec1.<\/p>\n<p><strong>Ki\u1ec3m tra s\u1ee5t \u00e1p:<\/strong> \u0110o \u0111i\u1ec7n \u00e1p gi\u1eefa c\u00e1c \u0111\u1ea7u n\u1ed1i c\u1ea7u dao ch\u00ednh v\u00e0 c\u00e1c \u0111\u1ea7u n\u1ed1i MCB ri\u00eang l\u1ebb khi c\u00f3 t\u1ea3i. S\u1ee5t \u00e1p qu\u00e1 m\u1ee9c (&gt;1-2%) cho th\u1ea5y \u0111i\u1ec7n tr\u1edf cao trong \u0111\u01b0\u1eddng d\u1eabn ph\u00e2n ph\u1ed1i.<\/p>\n<p><strong>Ki\u1ec3m tra b\u1eb1ng tay (ch\u1ec9 khi \u0111\u00e3 ng\u1eaft \u0111i\u1ec7n):<\/strong> Sau khi t\u1eaft m\u00e1y, h\u00e3y c\u1ea3m nh\u1eadn c\u00e1c \u1ed1c v\u00edt \u0111\u1ea7u cu\u1ed1i b\u1ecb l\u1ecfng. N\u1ebfu b\u1ea1n c\u00f3 th\u1ec3 v\u1eb7n ch\u00fang m\u00e0 kh\u00f4ng c\u1ea7n d\u1ee5ng c\u1ee5, ch\u00fang ch\u01b0a \u0111\u01b0\u1ee3c si\u1ebft \u0111\u00fang c\u00e1ch.<\/p>\n<h2>C\u00e1c H\u00e0nh \u0110\u1ed9ng Kh\u1eafc Ph\u1ee5c Ngay L\u1eadp T\u1ee9c<\/h2>\n<h3>Si\u1ebft L\u1ea1i C\u00e1c K\u1ebft N\u1ed1i \u0110\u1ea7u Cu\u1ed1i<\/h3>\n<p><strong>Th\u1ee7 t\u1ee5c:<\/strong><\/p>\n<ol>\n<li>Ng\u1eaft \u0111i\u1ec7n b\u1ea3ng \u0111i\u1ec7n, x\u00e1c nh\u1eadn \u0111i\u1ec7n \u00e1p b\u1eb1ng kh\u00f4ng, \u00e1p d\u1ee5ng kh\u00f3a\/treo bi\u1ec3n b\u00e1o<\/li>\n<li>S\u1eed d\u1ee5ng tu\u1ed1c n\u01a1 v\u00edt l\u1ef1c \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n: 2,5-3,5 N\u00b7m cho MCB d\u00e2n d\u1ee5ng, 4-6 N\u00b7m cho c\u1ea7u dao c\u00f4ng nghi\u1ec7p<\/li>\n<li>\u00c1p d\u1ee5ng m\u00f4-men xo\u1eafn m\u1ed9t c\u00e1ch tr\u01a1n tru, kh\u00f4ng gi\u1eadt c\u1ee5c<\/li>\n<li>\u0110\u1ed1i v\u1edbi thanh c\u00e1i ki\u1ec3u l\u01b0\u1ee3c, h\u00e3y l\u00e0m vi\u1ec7c c\u00f3 h\u1ec7 th\u1ed1ng t\u1eeb \u0111\u1ea7u \u0111\u1ebfn cu\u1ed1i, sau \u0111\u00f3 l\u1eb7p l\u1ea1i<\/li>\n<li>X\u00e1c minh thanh c\u00e1i kh\u00f4ng th\u1ec3 di chuy\u1ec3n ho\u1eb7c nh\u1ea5c kh\u1ecfi c\u00e1c \u0111\u1ea7u n\u1ed1i<\/li>\n<li>\u0110\u00e1nh d\u1ea5u c\u00e1c \u1ed1c v\u00edt \u0111\u00e3 si\u1ebft b\u1eb1ng s\u01a1n \u0111\u1ec3 ph\u00e1t hi\u1ec7n t\u00ecnh tr\u1ea1ng l\u1ecfng l\u1ebbo trong t\u01b0\u01a1ng lai<\/li>\n<\/ol>\n<h3>Khi n\u00e0o n\u00ean Thay th\u1ebf so v\u1edbi S\u1eeda ch\u1eefa<\/h3>\n<p><strong>Thay th\u1ebf n\u1ebfu b\u1ea1n th\u1ea5y:<\/strong><\/p>\n<ul>\n<li>S\u1ef1 \u0111\u1ed5i m\u00e0u (\u0111\u1ed3ng \u0111\u00e3 \u0111\u1ee7 n\u00f3ng \u0111\u1ec3 chuy\u1ec3n sang m\u00e0u n\u00e2u\/\u0111en c\u00f3 nh\u1eefng thay \u0111\u1ed5i v\u1ec1 luy\u1ec7n kim v\u0129nh vi\u1ec5n)<\/li>\n<li>Cong v\u00eanh ho\u1eb7c bi\u1ebfn d\u1ea1ng<\/li>\n<li>Ch\u00e1y x\u00e9m nh\u1ef1a xung quanh<\/li>\n<li>V\u1ebft n\u1ee9t ho\u1eb7c h\u01b0 h\u1ecfng c\u01a1 h\u1ecdc<\/li>\n<\/ul>\n<p><strong>Chu\u1ea9n b\u1ecb b\u1ec1 m\u1eb7t cho thanh c\u00e1i m\u1edbi:<\/strong><\/p>\n<ol>\n<li>Lo\u1ea1i b\u1ecf l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7, d\u1ea7u, qu\u00e1 tr\u00ecnh oxy h\u00f3a b\u1eb1ng v\u1ea3i nh\u00e1m m\u1ecbn<\/li>\n<li>B\u00f4i m\u1ed9t l\u1edbp m\u1ecfng h\u1ee3p ch\u1ea5t ti\u1ebfp x\u00fac \u0111i\u1ec7n<\/li>\n<li>Tr\u00e1nh h\u1ee3p ch\u1ea5t qu\u00e1 m\u1ee9c\u2014n\u00f3 thu h\u00fat b\u1ee5i<\/li>\n<\/ol>\n<p>Hi\u1ec3u bi\u1ebft <a href=\"https:\/\/test.viox.com\/vi\/10-differences-between-copper-and-aluminum-busbars\/\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa thanh c\u00e1i \u0111\u1ed3ng v\u00e0 nh\u00f4m<\/a> Gi\u00fap ch\u1ecdn v\u1eadt li\u1ec7u thay th\u1ebf ph\u00f9 h\u1ee3p.<\/p>\n<h3>Qu\u1ea3n l\u00fd t\u1ea3i<\/h3>\n<p>N\u1ebfu qu\u00e1 nhi\u1ec7t l\u00e0 do t\u1ea3i qu\u00e1 m\u1ee9c, c\u00e1c t\u00f9y ch\u1ecdn tr\u01b0\u1edbc m\u1eaft bao g\u1ed3m:<\/p>\n<ul>\n<li>T\u1ea1m th\u1eddi ng\u1eaft k\u1ebft n\u1ed1i ho\u1eb7c di d\u1eddi c\u00e1c m\u1ea1ch \u0111i\u1ec7n c\u00f3 d\u00f2ng \u0111i\u1ec7n cao<\/li>\n<li>So le ho\u1ea1t \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb c\u00f4ng su\u1ea5t cao<\/li>\n<li>L\u1eafp \u0111\u1eb7t th\u00eam b\u1ea3ng ph\u00e2n ph\u1ed1i \u0111\u1ec3 chia t\u1ea3i<\/li>\n<li>S\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 \u0111o c\u00f4ng su\u1ea5t ghi d\u1eef li\u1ec7u \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c ki\u1ec3u t\u1ea3i th\u1ef1c t\u1ebf v\u00e0 th\u1eddi gian nhu c\u1ea7u cao \u0111i\u1ec3m<\/li>\n<\/ul>\n<h2>C\u00e1c Chi\u1ebfn L\u01b0\u1ee3c Ph\u00f2ng Ng\u1eeba D\u00e0i H\u1ea1n<\/h2>\n<h3>Giao Th\u1ee9c C\u00e0i \u0110\u1eb7t Ph\u00f9 H\u1ee3p<\/h3>\n<ol>\n<li><strong>Chu\u1ea9n b\u1ecb b\u1ec1 m\u1eb7t:<\/strong> Lo\u1ea1i b\u1ecf c\u00e1c l\u1edbp oxit, b\u00f4i h\u1ee3p ch\u1ea5t ti\u1ebfp x\u00fac<\/li>\n<li><strong>X\u00e1c minh c\u0103n ch\u1ec9nh:<\/strong> \u0110\u1ea3m b\u1ea3o \u0103n kh\u1edbp ho\u00e0n to\u00e0n tr\u01b0\u1edbc khi si\u1ebft ch\u1eb7t<\/li>\n<li><strong>\u1ee8ng d\u1ee5ng m\u00f4-men xo\u1eafn:<\/strong> S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 \u0111\u00e3 hi\u1ec7u chu\u1ea9n, tu\u00e2n theo th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t<\/li>\n<li><strong>Ki\u1ec3m tra sau c\u00e0i \u0111\u1eb7t:<\/strong> Ch\u1ee5p \u1ea3nh nhi\u1ec7t d\u01b0\u1edbi t\u1ea3i trong qu\u00e1 tr\u00ecnh ch\u1ea1y th\u1eed<\/li>\n<li><strong>T\u00e0i li\u1ec7u:<\/strong> Ghi l\u1ea1i c\u00e1c gi\u00e1 tr\u1ecb m\u00f4-men xo\u1eafn, th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a thanh c\u00e1i, ng\u00e0y l\u1eafp \u0111\u1eb7t<\/li>\n<\/ol>\n<h3>L\u1ecbch Tr\u00ecnh B\u1ea3o Tr\u00ec<\/h3>\n<p><strong>L\u1eafp \u0111\u1eb7t th\u01b0\u01a1ng m\u1ea1i d\u00f2ng \u0111i\u1ec7n cao trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t:<\/strong> Ch\u1ee5p \u1ea3nh nhi\u1ec7t h\u00e0ng n\u0103m<\/p>\n<p><strong>B\u1ea3ng \u0111i\u1ec7n d\u00e2n d\u1ee5ng trong \u0111i\u1ec1u ki\u1ec7n \u00f4n h\u00f2a:<\/strong> M\u1ed7i 3-5 n\u0103m<\/p>\n<p><strong>L\u1ecbch tr\u00ecnh si\u1ebft l\u1ea1i:<\/strong><\/p>\n<ul>\n<li>Ban \u0111\u1ea7u: 6-12 th\u00e1ng sau khi l\u1eafp \u0111\u1eb7t (b\u00f9 cho chu k\u1ef3 nhi\u1ec7t)<\/li>\n<li>Ti\u1ebfp theo: C\u1ee9 3-5 n\u0103m \u0111\u1ed1i v\u1edbi d\u00e2n d\u1ee5ng, h\u00e0ng n\u0103m \u0111\u1ed1i v\u1edbi th\u01b0\u01a1ng m\u1ea1i<\/li>\n<\/ul>\n<p><strong>B\u1ea3o tr\u00ec d\u1ef1 \u0111o\u00e1n:<\/strong> C\u00e1c k\u1ebft n\u1ed1i cho th\u1ea5y m\u1ee9c t\u0103ng 15-20\u00b0C so v\u1edbi \u0111\u01b0\u1eddng c\u01a1 s\u1edf c\u1ea7n \u0111\u01b0\u1ee3c \u0111i\u1ec1u tra. M\u1ee9c t\u0103ng v\u01b0\u1ee3t qu\u00e1 30\u00b0C c\u1ea7n h\u00e0nh \u0111\u1ed9ng ngay l\u1eadp t\u1ee9c.<\/p>\n<h3>L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u<\/h3>\n<p><strong>\u0110\u1ed3ng so v\u1edbi Nh\u00f4m:<\/strong><\/p>\n<ul>\n<li>\u0110\u1ed3ng: \u0110\u1ed9 d\u1eabn \u0111i\u1ec7n cao h\u01a1n, \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc t\u1ed1t h\u01a1n, kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a v\u01b0\u1ee3t tr\u1ed9i<\/li>\n<li>Nh\u00f4m: Chi ph\u00ed th\u1ea5p h\u01a1n, tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9 h\u01a1n, nh\u01b0ng y\u00eau c\u1ea7u ti\u1ebft di\u1ec7n l\u1edbn h\u01a1n v\u00e0 k\u1ef9 thu\u1eadt k\u1ebft n\u1ed1i chuy\u00ean d\u1ee5ng<\/li>\n<\/ul>\n<p><strong>X\u1eed l\u00fd b\u1ec1 m\u1eb7t:<\/strong><\/p>\n<ul>\n<li>M\u1ea1 thi\u1ebfc: Ph\u1ed5 bi\u1ebfn nh\u1ea5t, kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a t\u1ed1t, \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac th\u1ea5p<\/li>\n<li>M\u1ea1 b\u1ea1c: \u0110i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac th\u1ea5p nh\u1ea5t, \u0111\u1eaft ti\u1ec1n, d\u00e0nh ri\u00eang cho c\u00e1c \u1ee9ng d\u1ee5ng d\u00f2ng \u0111i\u1ec7n cao (&gt;400A)<\/li>\n<li>\u0110\u1ed3ng tr\u1ea7n: \u0110\u1ed9 d\u1eabn \u0111i\u1ec7n tuy\u1ec7t v\u1eddi nh\u01b0ng d\u1ec5 b\u1ecb oxy h\u00f3a, y\u00eau c\u1ea7u b\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3<\/li>\n<\/ul>\n<p>\u0110\u1ec3 \u0111\u01b0\u1ee3c h\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n, h\u00e3y tham kh\u1ea3o <a href=\"https:\/\/test.viox.com\/vi\/comprehensive-guide-to-busbars-types-design-manufacturing-applications-and-safety-in-modern-electrical-systems\/\">h\u01b0\u1edbng d\u1eabn h\u1ec7 th\u1ed1ng thanh c\u00e1i ho\u00e0n ch\u1ec9nh<\/a>.<\/p>\n<h2>Tham kh\u1ea3o nhanh: C\u00e1c nguy\u00ean nh\u00e2n v\u00e0 gi\u1ea3i ph\u00e1p ph\u1ed5 bi\u1ebfn<\/h2>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">G\u00e2y ra<\/th>\n<th style=\"padding: 8px;\">T\u0103ng Nhi\u1ec7t \u0111\u1ed9<\/th>\n<th style=\"padding: 8px;\">C\u00e1ch ph\u00e1t hi\u1ec7n<\/th>\n<th style=\"padding: 8px;\">\u0110\u1ed9 kh\u00f3 s\u1eeda ch\u1eefa<\/th>\n<th style=\"padding: 8px;\">D\u00f2ng th\u1eddi gian<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">K\u1ebft n\u1ed1i l\u1ecfng l\u1ebbo<\/td>\n<td style=\"padding: 8px;\">40-80\u00b0C<\/td>\n<td style=\"padding: 8px;\">Ch\u1ee5p \u1ea3nh nhi\u1ec7t, tr\u1ef1c quan<\/td>\n<td style=\"padding: 8px;\">D\u1ec5 (si\u1ebft l\u1ea1i)<\/td>\n<td style=\"padding: 8px;\">V\u00e0i ng\u00e0y \u0111\u1ebfn v\u00e0i th\u00e1ng<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Thanh c\u00e1i kh\u00f4ng \u0111\u1ee7 k\u00edch th\u01b0\u1edbc<\/td>\n<td style=\"padding: 8px;\">20-50\u00b0C<\/td>\n<td style=\"padding: 8px;\">\u0110o t\u1ea3i, nhi\u1ec7t<\/td>\n<td style=\"padding: 8px;\">Kh\u00f3 (thay th\u1ebf)<\/td>\n<td style=\"padding: 8px;\">V\u00e0i th\u00e1ng \u0111\u1ebfn v\u00e0i n\u0103m<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Sai l\u1ec7ch<\/td>\n<td style=\"padding: 8px;\">30-70\u00b0C<\/td>\n<td style=\"padding: 8px;\">Tr\u1ef1c quan, nhi\u1ec7t<\/td>\n<td style=\"padding: 8px;\">V\u1eeba ph\u1ea3i (c\u00e0i \u0111\u1eb7t l\u1ea1i)<\/td>\n<td style=\"padding: 8px;\">V\u00e0i tu\u1ea7n \u0111\u1ebfn v\u00e0i th\u00e1ng<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">H\u00f3a<\/td>\n<td style=\"padding: 8px;\">15-40\u00b0C<\/td>\n<td style=\"padding: 8px;\">Tr\u1ef1c quan, ki\u1ec3m tra \u0111i\u1ec7n tr\u1edf<\/td>\n<td style=\"padding: 8px;\">V\u1eeba ph\u1ea3i (l\u00e0m s\u1ea1ch\/thay th\u1ebf)<\/td>\n<td style=\"padding: 8px;\">V\u00e0i th\u00e1ng \u0111\u1ebfn v\u00e0i n\u0103m<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Qu\u00e1 t\u1ea3i<\/td>\n<td style=\"padding: 8px;\">25-60\u00b0C<\/td>\n<td style=\"padding: 8px;\">\u0110o l\u01b0\u1eddng hi\u1ec7n t\u1ea1i<\/td>\n<td style=\"padding: 8px;\">V\u1eeba ph\u1ea3i (ph\u00e2n ph\u1ed1i l\u1ea1i)<\/td>\n<td style=\"padding: 8px;\">V\u00e0i th\u00e1ng \u0111\u1ebfn v\u00e0i n\u0103m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Nh\u1eefng C\u00e2u H\u1ecfi Th\u01b0\u1eddng<\/h2>\n<p><strong>Nhi\u1ec7t \u0111\u1ed9 n\u00e0o cho th\u1ea5y t\u00ecnh tr\u1ea1ng qu\u00e1 nhi\u1ec7t nguy hi\u1ec3m?<\/strong><br \/>\nTr\u00ean 70\u00b0C so v\u1edbi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng (th\u01b0\u1eddng l\u00e0 110\u00b0C tuy\u1ec7t \u0111\u1ed1i) c\u1ea7n can thi\u1ec7p ngay l\u1eadp t\u1ee9c. Tr\u00ean 90\u00b0C so v\u1edbi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng (130\u00b0C tuy\u1ec7t \u0111\u1ed1i) c\u00f3 ngh\u0129a l\u00e0 nguy c\u01a1 h\u1ecfng h\u00f3c s\u1eafp x\u1ea3y ra. Nh\u01b0ng \u0111\u1eebng \u0111\u1ee3i \u0111\u1ebfn ng\u01b0\u1ee1ng tuy\u1ec7t \u0111\u1ed1i\u2014b\u1ea5t k\u1ef3 k\u1ebft n\u1ed1i n\u00e0o n\u00f3ng h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c k\u1ebft n\u1ed1i t\u01b0\u01a1ng t\u1ef1 li\u1ec1n k\u1ec1 \u0111\u1ec1u c\u1ea7n \u0111\u01b0\u1ee3c \u0111i\u1ec1u tra.<\/p>\n<p><strong>T\u00f4i c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c v\u1eadn h\u00e0nh khi thanh c\u00e1i b\u1ecb n\u00f3ng kh\u00f4ng?<\/strong><br \/>\nKh\u00f4ng. N\u1ebfu h\u00ecnh \u1ea3nh nhi\u1ec7t cho th\u1ea5y nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n b\u00ecnh th\u01b0\u1eddng t\u1eeb 20-30\u00b0C, h\u00e3y l\u00ean l\u1ecbch s\u1eeda ch\u1eefa trong v\u00f2ng v\u00e0i ng\u00e0y \u0111\u1ebfn v\u00e0i tu\u1ea7n. Tr\u00ean 40\u00b0C y\u00eau c\u1ea7u gi\u1ea3m t\u1ea3i ngay l\u1eadp t\u1ee9c v\u00e0 s\u1eeda ch\u1eefa kh\u1ea9n c\u1ea5p. Ti\u1ebfp t\u1ee5c v\u1eadn h\u00e0nh c\u00f3 nguy c\u01a1 g\u00e2y ra h\u1ecfng h\u00f3c nghi\u00eam tr\u1ecdng v\u00e0 h\u1ecfa ho\u1ea1n.<\/p>\n<p><strong>T\u00f4i n\u00ean si\u1ebft l\u1ea1i c\u00e1c k\u1ebft n\u1ed1i v\u1edbi t\u1ea7n su\u1ea5t bao l\u00e2u?<\/strong><br \/>\nSi\u1ebft l\u1ea1i l\u1ef1c si\u1ebft l\u1ea7n \u0111\u1ea7u ti\u00ean sau 6-12 th\u00e1ng k\u1ec3 t\u1eeb khi l\u1eafp \u0111\u1eb7t. Sau \u0111\u00f3, c\u1ee9 3-5 n\u0103m \u0111\u1ed1i v\u1edbi khu d\u00e2n c\u01b0, h\u00e0ng n\u0103m \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng th\u01b0\u01a1ng m\u1ea1i c\u00f3 d\u00f2ng \u0111i\u1ec7n cao. Ch\u1ee5p \u1ea3nh nhi\u1ec7t c\u00f3 th\u1ec3 cho th\u1ea5y c\u00e1c k\u1ebft n\u1ed1i c\u1ee5 th\u1ec3 c\u1ea7n \u0111\u01b0\u1ee3c ch\u00fa \u00fd gi\u1eefa c\u00e1c kho\u1ea3ng th\u1eddi gian \u0111\u00e3 l\u00ean l\u1ecbch.<\/p>\n<p><strong>T\u00f4i th\u1ef1c s\u1ef1 c\u1ea7n nh\u1eefng c\u00f4ng c\u1ee5 g\u00ec?<\/strong><br \/>\nThi\u1ebft y\u1ebfu: Tua v\u00edt l\u1ef1c \u0111\u00e3 hi\u1ec7u ch\u1ec9nh (d\u1ea3i 2-6 N\u00b7m), camera nhi\u1ec7t ho\u1eb7c nhi\u1ec7t k\u1ebf h\u1ed3ng ngo\u1ea1i, ch\u1ea5t l\u00e0m s\u1ea1ch ti\u1ebfp \u0111i\u1ec3m, \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng c\u01a1 b\u1ea3n, ampe k\u00ecm. N\u00ean c\u00f3: M\u00e1y \u0111o \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac \u0111\u1ec3 ch\u1ea9n \u0111o\u00e1n chi ti\u1ebft.<\/p>\n<p><strong>T\u00f4i c\u00f3 th\u1ec3 s\u1eeda ch\u1eefa m\u1ed9t thanh c\u00e1i b\u1ecb h\u01b0 h\u1ecfng kh\u00f4ng?<\/strong><br \/>\nKh\u00f4ng. N\u1ebfu \u0111\u1ed3ng b\u1ecb \u0111\u1ed5i m\u00e0u ho\u1eb7c nh\u1ef1a xung quanh b\u1ecb n\u00f3ng ch\u1ea3y\/ch\u00e1y th\u00e0nh than, h\u00e3y thay th\u1ebf thanh d\u1eabn. Nh\u1eefng thay \u0111\u1ed5i v\u1ec1 m\u1eb7t luy\u1ec7n kim do qu\u00e1 nhi\u1ec7t l\u00e0m suy gi\u1ea3m v\u0129nh vi\u1ec5n c\u00e1c \u0111\u1eb7c t\u00ednh \u0111i\u1ec7n v\u00e0 c\u01a1 h\u1ecdc. C\u00f3 th\u1ec3 l\u00e0m s\u1ea1ch qu\u00e1 tr\u00ecnh oxy h\u00f3a b\u1ec1 m\u1eb7t nh\u1eb9, nh\u01b0ng h\u01b0 h\u1ecfng do nhi\u1ec7t y\u00eau c\u1ea7u ph\u1ea3i thay th\u1ebf.<\/p>\n<p><strong>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ng\u0103n ch\u1eb7n \u0111i\u1ec1u n\u00e0y trong c\u00e1c c\u00e0i \u0111\u1eb7t m\u1edbi?<\/strong><br \/>\nBa b\u01b0\u1edbc quan tr\u1ecdng: (1) Ch\u1ecdn c\u00e1c th\u00e0nh ph\u1ea7n c\u00f3 \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7y \u0111\u1ee7 c\u1ed9ng v\u1edbi h\u1ec7 s\u1ed1 an to\u00e0n, (2) Tu\u00e2n th\u1ee7 k\u1ef9 thu\u1eadt l\u1eafp \u0111\u1eb7t t\u1ec9 m\u1ec9\u2014chu\u1ea9n b\u1ecb b\u1ec1 m\u1eb7t, c\u0103n ch\u1ec9nh, m\u00f4-men xo\u1eafn th\u00edch h\u1ee3p, (3) Ch\u1ee5p \u1ea3nh nhi\u1ec7t trong qu\u00e1 tr\u00ecnh c\u1ea5p \u0111i\u1ec7n ban \u0111\u1ea7u d\u01b0\u1edbi t\u1ea3i \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c l\u1ed7i l\u1eafp \u0111\u1eb7t tr\u01b0\u1edbc khi ch\u00fang tr\u1edf th\u00e0nh v\u1ea5n \u0111\u1ec1.<\/p>\n<\/div>\n<div class=\"simg-pop-btn\" style=\"top: 307.828px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 1759.67px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 1759.67px; left: 14px; display: none;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>What Causes MCB Busbar Overheating and How Do You Fix It? MCB busbar overheating is primarily caused by loose connections, undersized components, improper alignment, or oxidation. These create high-resistance points that generate excessive heat through I\u00b2R losses, potentially leading to fire hazards and system failure. Immediate fixes include re-torquing connections to 2.5-3.5 N\u00b7m, replacing visibly [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21662,"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-21660","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\/21660","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=21660"}],"version-history":[{"count":2,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/21660\/revisions"}],"predecessor-version":[{"id":21663,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/21660\/revisions\/21663"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/21662"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=21660"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=21660"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=21660"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}