{"id":20499,"date":"2025-12-02T22:45:40","date_gmt":"2025-12-02T14:45:40","guid":{"rendered":"https:\/\/viox.com\/?p=20499"},"modified":"2025-12-03T09:14:48","modified_gmt":"2025-12-03T01:14:48","slug":"iec-61008-1-standard-rccb-requirements-explained","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/iec-61008-1-standard-rccb-requirements-explained\/","title":{"rendered":"Ti\u00eau chu\u1ea9n IEC 61008-1: Gi\u1ea3i th\u00edch c\u00e1c y\u00eau c\u1ea7u RCCB (H\u01b0\u1edbng d\u1eabn 2025)"},"content":{"rendered":"<div class=\"product-intro\">\n<p>Khi m\u1ed9t k\u1ef9 s\u01b0 \u0111i\u1ec7n \u0111\u00f3ng d\u1ea5u b\u1ea3n v\u1ebd v\u1edbi d\u00f2ng ch\u1eef \u201cY\u00eau c\u1ea7u RCCB tu\u00e2n th\u1ee7 IEC 61008-1\u201d, d\u00f2ng ch\u1eef duy nh\u1ea5t \u0111\u00f3 s\u1ebd k\u00edch ho\u1ea1t m\u1ed9t lo\u1ea1t c\u00e1c quy\u1ebft \u0111\u1ecbnh k\u1ef9 thu\u1eadt\u2014\u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c, ng\u01b0\u1ee1ng \u0111\u1ed9 nh\u1ea1y, ph\u1ed1i h\u1ee3p ng\u1eafn m\u1ea1ch, quy tr\u00ecnh th\u1eed nghi\u1ec7m. \u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t n\u1ed9p thi\u1ebft b\u1ecb cho c\u00e1c t\u1ed5 ch\u1ee9c ch\u1ee9ng nh\u1eadn, IEC 61008-1 \u0111\u1ea1i di\u1ec7n cho nhi\u1ec1u th\u00e1ng x\u00e1c th\u1ef1c thi\u1ebft k\u1ebf v\u00e0 h\u00e0ng tr\u0103m chu k\u1ef3 th\u1eed nghi\u1ec7m. \u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd mua s\u1eafm \u0111\u00e1nh gi\u00e1 c\u00e1c tuy\u00ean b\u1ed1 c\u1ee7a nh\u00e0 cung c\u1ea5p, \u0111\u00f3 l\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ch\u1ee9ng ch\u1ec9 ch\u00ednh h\u00e3ng v\u00e0 qu\u1ea3ng c\u00e1o th\u1ed5i ph\u1ed3ng.<\/p>\n<p>IEC 61008-1 l\u00e0 ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf \u0111i\u1ec1u ch\u1ec9nh <a href=\"https:\/\/test.viox.com\/vi\/rccb\/\">thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft d\u00f2ng d\u01b0 (RCCB)<\/a> kh\u00f4ng c\u00f3 b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng t\u00edch h\u1ee3p. \u0110\u01b0\u1ee3c xu\u1ea5t b\u1ea3n l\u1ea7n \u0111\u1ea7u b\u1edfi \u1ee6y ban K\u1ef9 thu\u1eadt \u0110i\u1ec7n Qu\u1ed1c t\u1ebf, ti\u00eau chu\u1ea9n n\u00e0y x\u00e1c \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt, quy tr\u00ecnh th\u1eed nghi\u1ec7m v\u00e0 ti\u00eau ch\u00ed hi\u1ec7u su\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o RCCB ph\u00e1t hi\u1ec7n \u0111\u00e1ng tin c\u1eady d\u00f2ng \u0111i\u1ec7n ch\u1ea1m \u0111\u1ea5t v\u00e0 ng\u0103n ng\u1eeba \u0111i\u1ec7n gi\u1eadt. \u1ea4n b\u1ea3n th\u1ee9 t\u01b0, \u0111\u01b0\u1ee3c ph\u00e1t h\u00e0nh v\u00e0o n\u0103m 2024, \u0111\u00e3 gi\u1edbi thi\u1ec7u nh\u1eefng c\u1eadp nh\u1eadt quan tr\u1ecdng\u2014bao g\u1ed3m th\u1eed nghi\u1ec7m kh\u1ea3 n\u0103ng ch\u1ed1ng qu\u00e1 \u0111i\u1ec7n \u00e1p t\u1ea1m th\u1eddi v\u00e0 c\u00e1c y\u00eau c\u1ea7u h\u00e0i h\u00f2a trong to\u00e0n b\u1ed9 h\u1ecd IEC 61008\/61009\/60755.<\/p>\n<p>H\u01b0\u1edbng d\u1eabn n\u00e0y chuy\u1ec3n \u0111\u1ed5i IEC 61008-1 t\u1eeb ng\u00f4n ng\u1eef ti\u00eau chu\u1ea9n tr\u1eebu t\u01b0\u1ee3ng th\u00e0nh ki\u1ebfn th\u1ee9c k\u1ef9 thu\u1eadt c\u00f3 th\u1ec3 h\u00e0nh \u0111\u1ed9ng. Ch\u00fang ta s\u1ebd \u0111i qua c\u00e1c ranh gi\u1edbi ph\u1ea1m vi, gi\u1ea3i m\u00e3 c\u00e1c b\u1ea3ng \u0111\u1ecbnh l\u01b0\u1ee3ng \u0111\u1ecbnh m\u1ee9c, gi\u1ea3i th\u00edch t\u1eebng y\u00eau c\u1ea7u th\u1eed nghi\u1ec7m ch\u00ednh v\u00e0 l\u00e0m r\u00f5 nh\u1eefng g\u00ec \u0111\u00e3 thay \u0111\u1ed5i trong \u1ea5n b\u1ea3n n\u0103m 2024. Cho d\u00f9 b\u1ea1n \u0111ang chu\u1ea9n b\u1ecb t\u00e0i li\u1ec7u ch\u1ee9ng nh\u1eadn, ch\u1ec9 \u0111\u1ecbnh RCCB cho m\u1ed9t d\u1ef1 \u00e1n hay x\u00e1c minh b\u00e1o c\u00e1o th\u1eed nghi\u1ec7m c\u1ee7a nh\u00e0 cung c\u1ea5p, b\u1ea1n s\u1ebd ho\u00e0n th\u00e0nh v\u1edbi m\u1ed9t l\u1ed9 tr\u00ecnh r\u00f5 r\u00e0ng v\u1ec1 nh\u1eefng g\u00ec IEC 61008-1 th\u1ef1c s\u1ef1 y\u00eau c\u1ea7u\u2014v\u00e0 t\u1ea1i sao nh\u1eefng y\u00eau c\u1ea7u \u0111\u00f3 l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi hi\u1ec7u su\u1ea5t th\u1ef1c t\u1ebf.<\/p>\n<h2>T\u1ed5ng quan v\u00e0 Ph\u1ea1m vi c\u1ee7a IEC 61008-1<\/h2>\n<p>IEC 61008-1 thi\u1ebft l\u1eadp n\u1ec1n t\u1ea3ng cho s\u1ef1 an to\u00e0n c\u1ee7a RCCB tr\u00ean to\u00e0n th\u1ebf gi\u1edbi, nh\u01b0ng ph\u1ea1m vi c\u1ee7a n\u00f3 c\u00f3 nh\u1eefng ranh gi\u1edbi ch\u00ednh x\u00e1c. Hi\u1ec3u r\u00f5 nh\u1eefng g\u00ec ti\u00eau chu\u1ea9n bao g\u1ed3m\u2014v\u00e0 nh\u1eefng g\u00ec n\u00f3 c\u1ed1 t\u00ecnh lo\u1ea1i tr\u1eeb\u2014s\u1ebd ng\u0103n ng\u1eeba c\u00e1c l\u1ed7i \u0111\u1eb7c t\u1ea3 v\u00e0 nh\u1eefng b\u1ea5t ng\u1edd v\u1ec1 ch\u1ee9ng nh\u1eadn.<\/p>\n<h3>Nh\u1eefng g\u00ec IEC 61008-1 Bao g\u1ed3m<\/h3>\n<p>Ti\u00eau chu\u1ea9n n\u00e0y \u00e1p d\u1ee5ng cho thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft d\u00f2ng d\u01b0 <strong>kh\u00f4ng c\u00f3 b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng t\u00edch h\u1ee3p<\/strong>. S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y r\u1ea5t quan tr\u1ecdng: IEC 61008-1 \u0111i\u1ec1u ch\u1ec9nh c\u00e1c RCCB \u0111\u1ed9c l\u1eadp ph\u00e1t hi\u1ec7n d\u00f2ng \u0111i\u1ec7n ch\u1ea1m \u0111\u1ea5t th\u00f4ng qua c\u1ea3m bi\u1ebfn d\u00f2ng \u0111i\u1ec7n vi sai, nh\u01b0ng d\u1ef1a v\u00e0o c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch th\u01b0\u1ee3ng ngu\u1ed3n (MCB ho\u1eb7c <a href=\"https:\/\/test.viox.com\/vi\/mccb\/\">MCCBs<\/a>) \u0111\u1ec3 b\u1ea3o v\u1ec7 ng\u1eafn m\u1ea1ch v\u00e0 qu\u00e1 t\u1ea3i. C\u00e1c thi\u1ebft b\u1ecb k\u1ebft h\u1ee3p c\u1ea3 hai ch\u1ee9c n\u0103ng\u2014RCBO (Thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft d\u00f2ng d\u01b0 c\u00f3 b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng t\u00edch h\u1ee3p)\u2014thu\u1ed9c ti\u00eau chu\u1ea9n IEC 61009 ri\u00eang bi\u1ec7t.<\/p>\n<p>Ph\u1ea1m vi bao g\u1ed3m RCCB ch\u1ee7 y\u1ebfu d\u00f9ng \u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ed1ng \u0111i\u1ec7n gi\u1eadt trong c\u00e1c h\u1ed9 gia \u0111\u00ecnh, th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00e1c c\u00f4ng tr\u00ecnh t\u01b0\u01a1ng t\u1ef1. C\u00e1c thi\u1ebft b\u1ecb n\u00e0y ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch c\u1ea3m nh\u1eadn s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng d\u00f2ng \u0111i\u1ec7n gi\u1eefa d\u00e2y pha v\u00e0 d\u00e2y trung t\u00ednh. Khi d\u00f2ng \u0111i\u1ec7n r\u00f2 v\u01b0\u1ee3t qu\u00e1 d\u00f2ng \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng d\u01b0 \u0111\u1ecbnh m\u1ee9c (I\u0394n)\u2014th\u01b0\u1eddng do ch\u1ea1m \u0111\u1ea5t ho\u1eb7c h\u1ecfng c\u00e1ch \u0111i\u1ec7n\u2014RCCB s\u1ebd ng\u1eaft trong v\u00f2ng mili gi\u00e2y, ng\u1eaft m\u1ea1ch tr\u01b0\u1edbc khi x\u1ea3y ra m\u1ee9c \u0111i\u1ec7n gi\u1eadt nguy hi\u1ec3m.<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/img.viox.com\/IEC-61008-1-scope-and-technical-boundaries-for-RCCBs.webp\" alt=\"IEC 61008-1 Standard Reference and Scope\" width=\"100%\" \/><figcaption>H\u00ecnh 1: Tham chi\u1ebfu Ti\u00eau chu\u1ea9n IEC 61008-1. Ti\u00eau chu\u1ea9n n\u00e0y \u00e1p d\u1ee5ng cho c\u00e1c thi\u1ebft b\u1ecb l\u00ean \u0111\u1ebfn 440V AC v\u00e0 125A, bao g\u1ed3m c\u00e1c lo\u1ea1i ph\u00e1t hi\u1ec7n (AC\/A) v\u00e0 c\u00e1c t\u00f9y ch\u1ecdn tr\u1ec5 th\u1eddi gian.<\/figcaption><\/figure>\n<h3>Ranh gi\u1edbi v\u00e0 Gi\u1edbi h\u1ea1n K\u1ef9 thu\u1eadt<\/h3>\n<p>IEC 61008-1 \u0111\u1eb7t ra c\u00e1c gi\u1edbi h\u1ea1n ho\u1ea1t \u0111\u1ed9ng r\u00f5 r\u00e0ng:<\/p>\n<ul>\n<li><strong>\u0110i\u1ec7n \u00e1p ho\u1ea1t \u0111\u1ed9ng \u0111\u1ecbnh m\u1ee9c (Un):<\/strong> L\u00ean \u0111\u1ebfn 440 V AC<\/li>\n<li><strong>D\u00f2ng \u0111i\u1ec7n \u0111\u1ecbnh m\u1ee9c (In):<\/strong> L\u00ean \u0111\u1ebfn 125 A<\/li>\n<li><strong>T\u1ea7n s\u1ed1 \u0111\u1ecbnh m\u1ee9c:<\/strong> 50 Hz ho\u1eb7c 60 Hz<\/li>\n<\/ul>\n<p>C\u00e1c thi\u1ebft b\u1ecb ph\u1ea3i ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c ph\u1ea1m vi n\u00e0y trong khi v\u1eabn duy tr\u00ec \u0111\u1ed9 nh\u1ea1y d\u00f2ng d\u01b0 nh\u1ea5t qu\u00e1n. Ti\u00eau chu\u1ea9n n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u1ea3 RCCB ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9c l\u1eadp v\u1ec1 ch\u1ee9c n\u0103ng (c\u01a1 ch\u1ebf ng\u1eaft c\u01a1 h\u1ecdc kh\u00f4ng y\u00eau c\u1ea7u ngu\u1ed3n \u0111i\u1ec7n b\u00ean ngo\u00e0i) v\u00e0 c\u00e1c thi\u1ebft k\u1ebf ph\u1ee5 thu\u1ed9c v\u00e0o \u0111i\u1ec7n \u00e1p \u0111\u01b0\u1eddng d\u00e2y (RCCB \u0111i\u1ec7n t\u1eed y\u00eau c\u1ea7u \u0111i\u1ec7n \u00e1p cung c\u1ea5p \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng). M\u1ed7i ph\u00e2n lo\u1ea1i k\u00edch ho\u1ea1t c\u00e1c y\u00eau c\u1ea7u th\u1eed nghi\u1ec7m kh\u00e1c nhau, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi h\u00e0nh vi trong qu\u00e1 tr\u00ecnh s\u1ee5t \u00e1p ho\u1eb7c gi\u00e1n \u0111o\u1ea1n.<\/p>\n<h3>Ph\u00e2n lo\u1ea1i Thi\u1ebft b\u1ecb theo IEC 61008-1<\/h3>\n<p>Ti\u00eau chu\u1ea9n n\u00e0y ph\u00e2n lo\u1ea1i RCCB theo m\u1ed9t s\u1ed1 kh\u00eda c\u1ea1nh:<\/p>\n<p><strong>Lo\u1ea1i ph\u00e1t hi\u1ec7n AC so v\u1edbi Lo\u1ea1i A:<\/strong> IEC 61008-1 bao g\u1ed3m hai lo\u1ea1i ph\u00e1t hi\u1ec7n c\u01a1 b\u1ea3n. RCCB lo\u1ea1i AC ph\u1ea3n \u1ee9ng v\u1edbi d\u00f2ng d\u01b0 AC h\u00ecnh sin\u2014d\u1ea5u hi\u1ec7u ch\u1ea1m \u0111\u1ea5t truy\u1ec1n th\u1ed1ng t\u1eeb t\u1ea3i \u0111i\u1ec7n tr\u1edf. C\u00e1c thi\u1ebft b\u1ecb lo\u1ea1i A b\u1ed5 sung \u0111\u1ed9 nh\u1ea1y v\u1edbi d\u00f2ng d\u01b0 DC xung (d\u1ea1ng s\u00f3ng ch\u1ec9nh l\u01b0u n\u1eeda s\u00f3ng ph\u1ed5 bi\u1ebfn trong c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i, tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n LED v\u00e0 thi\u1ebft b\u1ecb c\u00f3 t\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i). C\u1ea3 hai lo\u1ea1i ph\u1ea3i \u0111\u00e1p \u1ee9ng c\u00e1c \u0111\u01b0\u1eddng cong ho\u1ea1t \u0111\u1ed9ng th\u1eddi gian-d\u00f2ng \u0111i\u1ec7n c\u1ee5 th\u1ec3 \u0111\u01b0\u1ee3c n\u00eau chi ti\u1ebft trong c\u00e1c \u0111i\u1ec1u kho\u1ea3n th\u1eed nghi\u1ec7m c\u1ee7a ti\u00eau chu\u1ea9n.<\/p>\n<p><strong>\u0110\u1eb7c t\u00ednh tr\u1ec5 th\u1eddi gian:<\/strong> RCCB ti\u00eau chu\u1ea9n (t\u1ee9c th\u1eddi) ng\u1eaft m\u00e0 kh\u00f4ng c\u00f3 \u0111\u1ed9 tr\u1ec5 c\u1ed1 \u00fd. RCCB lo\u1ea1i S (ch\u1ecdn l\u1ecdc) k\u1ebft h\u1ee3p \u0111\u1ed9 tr\u1ec5 th\u1eddi gian, cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb h\u1ea1 ngu\u1ed3n x\u00f3a l\u1ed7i tr\u01b0\u1edbc\u2014\u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 ph\u1ed1i h\u1ee3p b\u1ea3o v\u1ec7 trong c\u00e1c h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i. \u0110i\u1ec1u kho\u1ea3n 4 x\u00e1c \u0111\u1ecbnh khung ph\u00e2n lo\u1ea1i, trong khi \u0110i\u1ec1u kho\u1ea3n 9 ch\u1ec9 \u0111\u1ecbnh c\u00e1c quy tr\u00ecnh th\u1eed nghi\u1ec7m t\u01b0\u01a1ng \u1ee9ng.<\/p>\n<p><strong>C\u1ea5u h\u00ecnh c\u1ef1c:<\/strong> Ti\u00eau chu\u1ea9n n\u00e0y \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c c\u1ea5u h\u00ecnh 2 c\u1ef1c (m\u1ed9t pha) v\u00e0 4 c\u1ef1c (ba pha), v\u1edbi c\u00e1c y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ea5u d\u00e2y v\u00e0 th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh cho t\u1eebng c\u1ea5u tr\u00fac li\u00ean k\u1ebft.<\/p>\n<h3>Chuy\u1ec3n \u0111\u1ed5i \u1ea4n b\u1ea3n n\u0103m 2024<\/h3>\n<p>V\u00e0o ng\u00e0y 21 th\u00e1ng 11 n\u0103m 2024, IEC ch\u00ednh th\u1ee9c r\u00fat \u1ea5n b\u1ea3n th\u1ee9 ba h\u1ee3p nh\u1ea5t (IEC 61008-1:2010+A1:2012+A2:2013) v\u00e0 xu\u1ea5t b\u1ea3n \u1ea5n b\u1ea3n th\u1ee9 t\u01b0. S\u1ef1 chuy\u1ec3n \u0111\u1ed5i n\u00e0y \u0111\u00e1nh d\u1ea5u b\u1ea3n c\u1eadp nh\u1eadt quan tr\u1ecdng nh\u1ea5t trong h\u01a1n m\u1ed9t th\u1eadp k\u1ef7. Nh\u1eefng thay \u0111\u1ed5i ch\u00ednh bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>H\u00e0i h\u00f2a gi\u1eefa c\u00e1c ti\u00eau chu\u1ea9n:<\/strong> \u1ea4n b\u1ea3n n\u0103m 2024 \u00e1p d\u1ee5ng c\u1ea5u tr\u00fac \u201ckh\u1ed1i v\u00e0 m\u00f4-\u0111un\u201d m\u00f4-\u0111un \u0111\u01b0\u1ee3c chia s\u1ebb v\u1edbi IEC 61009 (RCBO) v\u00e0 IEC 60755 (c\u00e1c y\u00eau c\u1ea7u RCD chung). S\u1ef1 li\u00ean k\u1ebft n\u00e0y l\u00e0m gi\u1ea3m m\u00e2u thu\u1eabn v\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c tu\u00e2n th\u1ee7 nhi\u1ec1u ti\u00eau chu\u1ea9n.<\/li>\n<li><strong>Y\u00eau c\u1ea7u TOV m\u1edbi:<\/strong> C\u00e1c ti\u1ec3u m\u1ee5c 8.17 v\u00e0 9.24 gi\u1edbi thi\u1ec7u th\u1eed nghi\u1ec7m b\u1eaft bu\u1ed9c v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ed1ng qu\u00e1 \u0111i\u1ec7n \u00e1p t\u1ea1m th\u1eddi (TOV). V\u1edbi vi\u1ec7c t\u00edch h\u1ee3p n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o v\u00e0 s\u1ef1 gia t\u0103ng b\u1ea5t \u1ed5n c\u1ee7a l\u01b0\u1edbi \u0111i\u1ec7n, RCCB hi\u1ec7n ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi c\u00e1c \u1ee9ng su\u1ea5t \u0111i\u1ec7n \u00e1p tho\u00e1ng qua v\u01b0\u1ee3t qu\u00e1 c\u00e1c ti\u00eau chu\u1ea9n l\u1ecbch s\u1eed. C\u00e1c th\u1eed nghi\u1ec7m TOV x\u00e1c nh\u1eadn r\u1eb1ng c\u00e1c thi\u1ebft b\u1ecb ch\u1ecbu \u0111\u01b0\u1ee3c c\u00e1c \u0111\u1ed9t bi\u1ebfn \u0111i\u1ec7n \u00e1p m\u00e0 kh\u00f4ng b\u1ecb suy gi\u1ea3m ho\u1eb7c ng\u1eaft sai.<\/li>\n<li><strong>C\u1ea3i thi\u1ec7n th\u1eed nghi\u1ec7m \u0111i\u1ec7n m\u00f4i:<\/strong> C\u00e1c quy tr\u00ecnh n\u00e2ng cao ph\u1ea3n \u00e1nh t\u1ed1t h\u01a1n \u1ee9ng su\u1ea5t c\u00e1ch \u0111i\u1ec7n trong th\u1ebf gi\u1edbi th\u1ef1c, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi RCCB \u0111i\u1ec7n t\u1eed c\u00f3 m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n nh\u1ea1y c\u1ea3m.<\/li>\n<li><strong>Tham chi\u1ebfu thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i v\u00e0 d\u00e2y d\u1eabn:<\/strong> Ti\u00eau chu\u1ea9n hi\u1ec7n tham chi\u1ebfu lo\u1ea1t IEC 62873-3 \u0111\u1ec3 thi\u1ebft k\u1ebf v\u00e0 th\u1eed nghi\u1ec7m thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i, \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n v\u1edbi c\u00e1c th\u00f4ng l\u1ec7 thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft \u0111i\u1ec7n \u00e1p th\u1ea5p r\u1ed9ng h\u01a1n.<\/li>\n<\/ul>\n<p>C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn theo \u1ea5n b\u1ea3n 2010+AMD ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi th\u1eddi gian chuy\u1ec3n \u0111\u1ed5i. C\u00e1c ch\u1ee9ng ch\u1ec9 hi\u1ec7n c\u00f3 v\u1eabn c\u00f3 gi\u00e1 tr\u1ecb, nh\u01b0ng c\u00e1c \u0111\u1ec7 tr\u00ecnh v\u00e0 t\u00e1i ch\u1ee9ng nh\u1eadn m\u1edbi y\u00eau c\u1ea7u th\u1eed nghi\u1ec7m theo c\u00e1c y\u00eau c\u1ea7u n\u0103m 2024. \u0110\u1ed1i v\u1edbi c\u00e1c nh\u00f3m mua s\u1eafm, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 x\u00e1c minh \u1ea5n b\u1ea3n m\u00e0 ch\u1ee9ng nh\u1eadn c\u1ee7a nh\u00e0 cung c\u1ea5p tham chi\u1ebfu\u2014\u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n c\u00f3 th\u1eddi gian ch\u1edd \u0111\u1ee3i l\u00e2u ho\u1eb7c c\u00e1c th\u1ecfa thu\u1eadn cung c\u1ea5p nhi\u1ec1u n\u0103m.<\/p>\n<h3>Nh\u1eefng g\u00ec IEC 61008-1 KH\u00d4NG Bao g\u1ed3m<\/h3>\n<p>Hi\u1ec3u c\u00e1c ranh gi\u1edbi c\u0169ng quan tr\u1ecdng kh\u00f4ng k\u00e9m:<\/p>\n<ul>\n<li><strong>RCCB lo\u1ea1i F v\u00e0 lo\u1ea1i B:<\/strong> C\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u00e1p \u1ee9ng t\u1ea7n s\u1ed1 (Lo\u1ea1i F, ph\u1ed5 bi\u1ebfn trong s\u1ea1c EV) ho\u1eb7c ph\u00e1t hi\u1ec7n d\u00f2ng d\u01b0 DC \u0111\u1ea7y \u0111\u1ee7 (Lo\u1ea1i B, b\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi bi\u1ebfn t\u1ea7n n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi v\u00e0 VFD) ph\u1ea3i \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u b\u1ed5 sung trong <strong>IEC 62423<\/strong>. Ti\u00eau chu\u1ea9n \u0111\u00f3 b\u1ed5 sung cho IEC 61008-1\u2014c\u1ea3 hai \u0111\u1ec1u \u00e1p d\u1ee5ng \u0111\u1ed3ng th\u1eddi cho ch\u1ee9ng nh\u1eadn Lo\u1ea1i F\/B.<\/li>\n<li><strong>RCBO (b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng + d\u00f2ng d\u01b0 k\u1ebft h\u1ee3p):<\/strong> \u0110\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh b\u1edfi IEC 61009, tham chi\u1ebfu nhi\u1ec1u \u0111i\u1ec1u kho\u1ea3n IEC 61008-1 nh\u01b0ng b\u1ed5 sung c\u00e1c y\u00eau c\u1ea7u ph\u1ed1i h\u1ee3p qu\u00e1 d\u00f2ng.<\/li>\n<li><strong>C\u00e0i \u0111\u1eb7t d\u00e0nh ri\u00eang cho \u1ee9ng d\u1ee5ng:<\/strong> IEC 61008-1 x\u00e1c \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u v\u1ec1 s\u1ea3n ph\u1ea9m. C\u00e1c th\u00f4ng l\u1ec7 l\u1eafp \u0111\u1eb7t, quy t\u1eafc thi\u1ebft k\u1ebf m\u1ea1ch v\u00e0 c\u00e1c v\u1ecb tr\u00ed RCCB b\u1eaft bu\u1ed9c \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp trong c\u00e1c quy t\u1eafc \u0111i\u1ec7n khu v\u1ef1c (\u0110i\u1ec1u 210.8 c\u1ee7a NEC \u1edf B\u1eafc M\u1ef9, BS 7671 \u1edf V\u01b0\u01a1ng qu\u1ed1c Anh, DIN VDE \u1edf \u0110\u1ee9c).<\/li>\n<\/ul>\n<h2>C\u00e1c Y\u00eau c\u1ea7u K\u1ef9 thu\u1eadt Ch\u00ednh<\/h2>\n<p>IEC 61008-1 x\u00e1c \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt th\u00f4ng qua c\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1ecbnh m\u1ee9c\u2014c\u00e1c gi\u00e1 tr\u1ecb m\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t khai b\u00e1o v\u00e0 th\u1eed nghi\u1ec7m x\u00e1c nh\u1eadn. C\u00e1c th\u00f4ng s\u1ed1 n\u00e0y chi ph\u1ed1i m\u1ecdi th\u1ee9, t\u1eeb ng\u01b0\u1ee1ng \u0111\u1ed9 nh\u1ea1y \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ecbu ng\u1eafn m\u1ea1ch.<\/p>\n<h3>C\u00e1c \u0110\u1ea1i l\u01b0\u1ee3ng v\u00e0 Th\u00f4ng s\u1ed1 \u0110\u1ecbnh m\u1ee9c<\/h3>\n<p>M\u1ed7i b\u1ea3ng t\u00ean RCCB mang m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c gi\u00e1 tr\u1ecb \u0111\u1ecbnh m\u1ee9c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 \u00fd ngh\u0129a c\u1ee7a t\u1eebng gi\u00e1 tr\u1ecb v\u00e0 t\u1ea1i sao n\u00f3 l\u1ea1i quan tr\u1ecdng:<\/p>\n<p><strong>\u0110i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c (Un):<\/strong> \u0110i\u1ec7n \u00e1p ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u0111a m\u00e0 RCCB \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 x\u1eed l\u00fd li\u00ean t\u1ee5c. C\u00e1c gi\u00e1 tr\u1ecb ph\u1ed5 bi\u1ebfn bao g\u1ed3m 230V (d\u00e2n d\u1ee5ng m\u1ed9t pha), 400V\/415V (c\u00f4ng nghi\u1ec7p ba pha). Thi\u1ebft b\u1ecb ph\u1ea3i duy tr\u00ec hi\u1ec7u su\u1ea5t \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh trong m\u1ed9t ph\u1ea1m vi \u0111i\u1ec7n \u00e1p, th\u01b0\u1eddng l\u00e0 85% \u0111\u1ebfn 110% Un.<\/p>\n<p><strong>D\u00f2ng \u0111i\u1ec7n \u0111\u1ecbnh m\u1ee9c (In):<\/strong> D\u00f2ng \u0111i\u1ec7n t\u1ea3i li\u00ean t\u1ee5c t\u1ed1i \u0111a m\u00e0 RCCB c\u00f3 th\u1ec3 mang m\u00e0 kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n t\u0103ng nhi\u1ec7t \u0111\u1ed9. C\u00e1c gi\u00e1 tr\u1ecb ti\u00eau chu\u1ea9n bao g\u1ed3m 16A, 25A, 32A, 40A, 63A, 80A, 100A v\u00e0 125A. \u0110\u00e2y KH\u00d4NG ph\u1ea3i l\u00e0 d\u00f2ng \u0111i\u1ec7n ng\u1eaft\u2014\u0111\u00f3 l\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t cho ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng. RCCB ph\u1ea3i v\u01b0\u1ee3t qua In li\u00ean t\u1ee5c trong khi v\u1eabn gi\u1eef nhi\u1ec7t \u0111\u1ed9 ti\u1ebfp x\u00fac t\u0103ng trong gi\u1edbi h\u1ea1n \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh trong \u0110i\u1ec1u kho\u1ea3n 9.12.<\/p>\n<p><strong>D\u00f2ng \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng d\u01b0 \u0111\u1ecbnh m\u1ee9c (I\u0394n):<\/strong> D\u00f2ng \u0111i\u1ec7n vi sai khi\u1ebfn RCCB ng\u1eaft. \u0110\u00e2y l\u00e0 th\u00f4ng s\u1ed1 an to\u00e0n c\u1ed1t l\u00f5i. \u0110\u1ed9 nh\u1ea1y ti\u00eau chu\u1ea9n bao g\u1ed3m:<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/img.viox.com\/RCCB-rated-residual-operating-current-(I\u0394n)-sensitivity-levels-and-their-applications.webp\" alt=\"RCCB Residual Operating Current Sensitivity Levels\" width=\"100%\" \/><figcaption>H\u00ecnh 2: Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt D\u00f2ng \u0111i\u1ec7n Ho\u1ea1t \u0111\u1ed9ng D\u01b0 (I\u0394n) c\u1ee7a RCCB. Ph\u1ea1m vi t\u1eeb 10mA cho c\u00e1c \u1ee9ng d\u1ee5ng y t\u1ebf c\u00f3 \u0111\u1ed9 nh\u1ea1y cao \u0111\u1ebfn 500mA cho ph\u1ed1i h\u1ee3p ch\u1ecdn l\u1ecdc c\u00f4ng nghi\u1ec7p.<\/figcaption><\/figure>\n<ul>\n<li><strong>10 mA:<\/strong> B\u1ea3o v\u1ec7 \u0111\u1ed9 nh\u1ea1y cao cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u1eb7c bi\u1ec7t (thi\u1ebft b\u1ecb y t\u1ebf, h\u1ed3 b\u01a1i)<\/li>\n<li><strong>30 mA:<\/strong> Ti\u00eau chu\u1ea9n b\u1ea3o v\u1ec7 c\u00e1 nh\u00e2n \u0111\u1ec3 ph\u00f2ng ng\u1eeba \u0111i\u1ec7n gi\u1eadt (b\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi m\u1ea1ch \u1ed5 c\u1eafm trong h\u1ea7u h\u1ebft c\u00e1c quy chu\u1ea9n)<\/li>\n<li><strong>100 mA:<\/strong> B\u1ea3o v\u1ec7 ch\u1ed1ng ch\u00e1y trong c\u00e1c c\u00f4ng tr\u00ecnh th\u01b0\u01a1ng m\u1ea1i\/c\u00f4ng nghi\u1ec7p<\/li>\n<li><strong>300 mA v\u00e0 500 mA:<\/strong> Ph\u1ed1i h\u1ee3p ch\u1ecdn l\u1ecdc trong h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i, b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb<\/li>\n<\/ul>\n<p>Ch\u00ednh x\u00e1c t\u1ea1i I\u0394n, RCCB ph\u1ea3i t\u00e1c \u0111\u1ed9ng tin c\u1eady trong gi\u1edbi h\u1ea1n th\u1eddi gian quy \u0111\u1ecbnh. IEC 61008-1 c\u0169ng \u0111\u1ecbnh ngh\u0129a I\u0394no (d\u00f2ng \u0111i\u1ec7n d\u01b0 kh\u00f4ng t\u00e1c \u0111\u1ed9ng \u0111\u1ecbnh m\u1ee9c)\u2014d\u00f2ng r\u00f2 t\u1ed1i \u0111a m\u00e0 thi\u1ebft b\u1ecb KH\u00d4NG \u0111\u01b0\u1ee3c ph\u00e9p t\u00e1c \u0111\u1ed9ng. \u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c RCCB, I\u0394no = 0.5 \u00d7 I\u0394n. V\u00f9ng \u0111\u1ec7m n\u00e0y ng\u0103n ch\u1eb7n t\u00e1c \u0111\u1ed9ng gi\u1ea3 do r\u00f2 r\u1ec9 n\u1ec1n th\u00f4ng th\u01b0\u1eddng.<\/p>\n<p><strong>Kh\u1ea3 n\u0103ng \u0111\u00f3ng v\u00e0 c\u1eaft \u0111\u1ecbnh m\u1ee9c (Im):<\/strong> D\u00f2ng \u0111i\u1ec7n t\u1edbi h\u1ea1n t\u1ed1i \u0111a m\u00e0 RCCB c\u00f3 th\u1ec3 \u0111\u00f3ng ho\u1eb7c c\u1eaft m\u1ed9t c\u00e1ch an to\u00e0n trong \u0111i\u1ec1u ki\u1ec7n ng\u1eafn m\u1ea1ch. Gi\u00e1 tr\u1ecb \u0111i\u1ec3n h\u00ecnh: 500A, 1000A, 1500A, 3000A, 6000A, 10000A. \u0110\u00e2y KH\u00d4NG ph\u1ea3i l\u00e0 d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch \u0111\u1ecbnh m\u1ee9c (y\u00eau c\u1ea7u b\u1ea3o v\u1ec7 SCPD \u1edf ph\u00eda tr\u00ean)\u2014\u0111\u00f3 l\u00e0 kh\u1ea3 n\u0103ng v\u1eadn h\u00e0nh c\u00e1c ti\u1ebfp \u0111i\u1ec3m c\u1ee7a RCCB trong \u0111i\u1ec1u ki\u1ec7n s\u1ef1 c\u1ed1 m\u00e0 kh\u00f4ng b\u1ecb h\u00e0n d\u00ednh ho\u1eb7c ph\u00e1t n\u1ed5.<\/p>\n<p><strong>Kh\u1ea3 n\u0103ng \u0111\u00f3ng v\u00e0 c\u1eaft d\u00f2ng d\u01b0 \u0111\u1ecbnh m\u1ee9c (I\u0394m):<\/strong> T\u01b0\u01a1ng t\u1ef1 nh\u01b0 Im, nh\u01b0ng \u0111\u1ed1i v\u1edbi d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 d\u01b0. RCCB ph\u1ea3i t\u00e1c \u0111\u1ed9ng v\u00e0 lo\u1ea1i b\u1ecf s\u1ef1 c\u1ed1 ch\u1ea1m \u0111\u1ea5t ngay c\u1ea3 khi d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 \u0111\u1ea1t \u0111\u1ebfn m\u1ee9c ng\u1eafn m\u1ea1ch. Gi\u00e1 tr\u1ecb ti\u00eau chu\u1ea9n: 500A, 1000A, 1500A cho thi\u1ebft b\u1ecb d\u00e2n d\u1ee5ng; gi\u00e1 tr\u1ecb cao h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p.<\/p>\n<p><strong>D\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch c\u00f3 \u0111i\u1ec1u ki\u1ec7n \u0111\u1ecbnh m\u1ee9c (Inc) v\u00e0 d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch d\u01b0 c\u00f3 \u0111i\u1ec1u ki\u1ec7n \u0111\u1ecbnh m\u1ee9c (I\u0394c):<\/strong> Ch\u00fang x\u00e1c \u0111\u1ecbnh d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 t\u1ed1i \u0111a m\u00e0 RCCB c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c khi \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1edfi m\u1ed9t thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 ng\u1eafn m\u1ea1ch (SCPD) \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh\u2014th\u01b0\u1eddng l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb \u1edf ph\u00eda tr\u00ean <a href=\"https:\/\/test.viox.com\/vi\/mcb\/\">MCB<\/a> ho\u1eb7c c\u1ea7u ch\u00ec. S\u1ef1 ph\u1ed1i h\u1ee3p \u0111\u1ea3m b\u1ea3o SCPD lo\u1ea1i b\u1ecf d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 cao tr\u01b0\u1edbc khi RCCB b\u1ecb h\u01b0 h\u1ecfng. \u0110i\u1ec1u kho\u1ea3n 9.14 tr\u00ecnh b\u00e0y chi ti\u1ebft c\u00e1c th\u1eed nghi\u1ec7m ph\u1ed1i h\u1ee3p ng\u1eafn m\u1ea1ch, bao g\u1ed3m vi\u1ec7c \u00e1p d\u1ee5ng d\u00f2ng \u0111i\u1ec7n t\u1edbi h\u1ea1n l\u00ean \u0111\u1ebfn Inc\/I\u0394c v\u00e0 x\u00e1c minh RCCB v\u1eabn ho\u1ea1t \u0111\u1ed9ng sau \u0111\u00f3.<\/p>\n<h3>\u0110\u1eb7c t\u00ednh ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u0111\u01b0\u1eddng cong th\u1eddi gian-d\u00f2ng \u0111i\u1ec7n<\/h3>\n<p>IEC 61008-1 quy \u0111\u1ecbnh gi\u1edbi h\u1ea1n th\u1eddi gian ch\u00ednh x\u00e1c \u0111\u1ec3 t\u00e1c \u0111\u1ed9ng \u1edf c\u00e1c b\u1ed9i s\u1ed1 kh\u00e1c nhau c\u1ee7a I\u0394n. C\u00e1c \u0111\u1eb7c t\u00ednh ho\u1ea1t \u0111\u1ed9ng n\u00e0y \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t nh\u1ea5t qu\u00e1n gi\u1eefa c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t:<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/img.viox.com\/RCCB-operating-characteristic-time-current-curves-per-IEC-61008-1.webp\" alt=\"RCCB Operating Characteristic Time-Current Curves\" width=\"100%\" \/><figcaption>H\u00ecnh 3: \u0110\u01b0\u1eddng cong th\u1eddi gian-d\u00f2ng \u0111i\u1ec7n \u0111\u1eb7c t\u00ednh ho\u1ea1t \u0111\u1ed9ng c\u1ee7a RCCB theo IEC 61008-1. C\u00e1c \u0111\u01b0\u1eddng cong cho th\u1ea5y th\u1eddi gian t\u00e1c \u0111\u1ed9ng t\u1ed1i \u0111a gi\u1ea3m khi c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 t\u0103ng l\u00ean.<\/figcaption><\/figure>\n<p><strong>\u0110\u1ed1i v\u1edbi RCCB Lo\u1ea1i AC v\u00e0 Lo\u1ea1i A (d\u00f2ng \u0111i\u1ec7n d\u01b0 xoay chi\u1ec1u h\u00ecnh sin):<\/strong><\/p>\n<ul>\n<li>T\u1ea1i <strong>I\u0394n (1x \u0111\u1ecbnh m\u1ee9c):<\/strong> Ph\u1ea3i t\u00e1c \u0111\u1ed9ng trong v\u00f2ng 300 ms \u1edf g\u00f3c pha 0\u00b0; 150 ms \u1edf g\u00f3c pha 90\u00b0<\/li>\n<li>T\u1ea1i <strong>2 \u00d7 I\u0394n:<\/strong> T\u1ed1i \u0111a 150 ms \u1edf 0\u00b0; 40 ms \u1edf 90\u00b0<\/li>\n<li>T\u1ea1i <strong>5 \u00d7 I\u0394n:<\/strong> T\u1ed1i \u0111a 40 ms \u1edf 0\u00b0 v\u00e0 90\u00b0<\/li>\n<li>T\u1ea1i <strong>500 \u00d7 I\u0394n (th\u1eed nghi\u1ec7m d\u00f2ng \u0111i\u1ec7n cao):<\/strong> T\u1ed1i \u0111a 40 ms<\/li>\n<\/ul>\n<p>S\u1ef1 ph\u1ee5 thu\u1ed9c v\u00e0o g\u00f3c pha ph\u1ea3n \u00e1nh h\u00e0nh vi c\u1ee7a l\u00f5i h\u00ecnh xuy\u1ebfn. D\u00f2ng \u0111i\u1ec7n d\u01b0 b\u1eaft \u0111\u1ea7u t\u1ea1i \u0111i\u1ec3m c\u1eaft kh\u00f4ng (0\u00b0) t\u1ea1o ra s\u1ef1 t\u00edch t\u1ee5 t\u1eeb th\u00f4ng ch\u1eadm h\u01a1n so v\u1edbi d\u00f2ng \u0111i\u1ec7n b\u1eaft \u0111\u1ea7u \u1edf \u0111\u1ec9nh (90\u00b0). Ti\u00eau chu\u1ea9n t\u00ednh \u0111\u1ebfn c\u00e1c k\u1ecbch b\u1ea3n x\u1ea5u nh\u1ea5t.<\/p>\n<p><strong>\u0110\u1ed1i v\u1edbi RCCB Lo\u1ea1i A c\u00f3 d\u00f2ng \u0111i\u1ec7n d\u01b0 m\u1ed9t chi\u1ec1u xung:<\/strong> C\u00e1c gi\u1edbi h\u1ea1n b\u1ed5 sung \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng khi d\u00f2ng \u0111i\u1ec7n ch\u1ec9nh l\u01b0u n\u1eeda s\u00f3ng (m\u00f4 ph\u1ecfng s\u1ef1 c\u1ed1 t\u1ea3i \u0111i\u1ec7n t\u1eed) k\u00edch ho\u1ea1t thi\u1ebft b\u1ecb. T\u1ea1i I\u0394n v\u1edbi d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u xung, th\u1eddi gian t\u00e1c \u0111\u1ed9ng t\u1ed1i \u0111a l\u00e0 300 ms (0\u00b0) v\u00e0 200 ms (90\u00b0). C\u00e1c kho\u1ea3ng th\u1eddi gian d\u00e0i h\u01a1n n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi th\u1ef1c t\u1ebf l\u00e0 d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u xung ch\u1ec9 cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho l\u00f5i h\u00ecnh xuy\u1ebfn trong n\u1eeda chu k\u1ef3.<\/p>\n<p><strong>RCCB Lo\u1ea1i S (ch\u1ecdn l\u1ecdc):<\/strong> Ch\u00fang k\u1ebft h\u1ee3p c\u00e1c \u0111\u1ed9 tr\u1ec5 c\u00f3 ch\u1ee7 \u00fd \u0111\u1ec3 ph\u1ed1i h\u1ee3p. Th\u1eddi gian kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng t\u1ed1i thi\u1ec3u dao \u0111\u1ed9ng t\u1eeb 130 ms \u0111\u1ebfn 500 ms \u1edf 2 \u00d7 I\u0394n, cho ph\u00e9p c\u00e1c RCCB t\u00e1c \u0111\u1ed9ng t\u1ee9c th\u1eddi \u1edf ph\u00eda d\u01b0\u1edbi lo\u1ea1i b\u1ecf s\u1ef1 c\u1ed1 tr\u01b0\u1edbc. \u1ede 5 \u00d7 I\u0394n tr\u1edf l\u00ean, thi\u1ebft b\u1ecb Lo\u1ea1i S v\u1eabn ph\u1ea3i t\u00e1c \u0111\u1ed9ng trong v\u00f2ng 150 ms \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n.<\/p>\n<p><strong>Gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n kh\u00f4ng t\u00e1c \u0111\u1ed9ng:<\/strong> \u1ede 0.5 \u00d7 I\u0394n (ng\u01b0\u1ee1ng I\u0394no), RCCB ph\u1ea3i duy tr\u00ec \u1ed5n \u0111\u1ecbnh trong 2 gi\u1edd \u1edf v\u1ecb tr\u00ed b\u1ea5t l\u1ee3i nh\u1ea5t. Th\u1eed nghi\u1ec7m \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh n\u00e0y, \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 tr\u00ean v\u00e0 d\u01b0\u1edbi, \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb ch\u1ed1ng l\u1ea1i t\u00e1c \u0111\u1ed9ng gi\u1ea3 do r\u00f2 r\u1ec9 m\u1ea1ch th\u00f4ng th\u01b0\u1eddng ho\u1eb7c d\u00f2ng \u0111i\u1ec7n h\u00e0i.<\/p>\n<h3>Ph\u00e2n lo\u1ea1i v\u00e0 Y\u00eau c\u1ea7u \u0111\u1eb7c bi\u1ec7t<\/h3>\n<p><strong>Ph\u00e2n lo\u1ea1i kh\u1ea3 n\u0103ng mi\u1ec5n nhi\u1ec5m xung:<\/strong> C\u00e1c phi\u00ean b\u1ea3n 2010+AMD v\u00e0 2024 b\u1eaft bu\u1ed9c th\u1eed nghi\u1ec7m kh\u1ea3 n\u0103ng ch\u1ecbu xung. RCCB ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi hai c\u1ea5u h\u00ecnh xung:<\/p>\n<ul>\n<li><strong>S\u00f3ng v\u00f2ng 0.5 \u03bcs \/ 100 kHz:<\/strong> M\u00f4 ph\u1ecfng qu\u00e1 \u0111\u1ed9 nhanh t\u1eeb c\u00e1c thao t\u00e1c chuy\u1ec3n m\u1ea1ch. RCCB ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y m\u00e0 kh\u00f4ng b\u1ecb t\u00e1c \u0111\u1ed9ng ho\u1eb7c h\u01b0 h\u1ecfng.<\/li>\n<li><strong>D\u00f2ng \u0111i\u1ec7n xung 8\/20 \u03bcs:<\/strong> D\u1ea1ng s\u00f3ng xung ti\u00eau chu\u1ea9n l\u00ean \u0111\u1ebfn \u0111\u1ec9nh 3000A. C\u00e1c th\u1eed nghi\u1ec7m x\u00e1c minh thi\u1ebft b\u1ecb kh\u00f4ng b\u1ecb t\u00e1c \u0111\u1ed9ng sai trong qu\u00e1 tr\u00ecnh xung do s\u00e9t ho\u1eb7c d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n.<\/li>\n<\/ul>\n<p><strong>Kh\u1ea3 n\u0103ng mi\u1ec5n nhi\u1ec5m th\u00e0nh ph\u1ea7n DC (y\u00eau c\u1ea7u Lo\u1ea1i A):<\/strong> RCCB Lo\u1ea1i A ph\u1ea3i ph\u00e1t hi\u1ec7n d\u00f2ng \u0111i\u1ec7n d\u01b0 ngay c\u1ea3 khi c\u00f3 t\u1edbi 6 mA d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u tr\u01a1n ch\u1ea3y qua l\u00f5i h\u00ecnh xuy\u1ebfn. D\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u tr\u01a1n t\u1ea1o ra \u0111\u1ed9 l\u1ec7ch t\u1eeb th\u00f4ng kh\u00f4ng \u0111\u1ed5i, c\u00f3 kh\u1ea3 n\u0103ng b\u00e3o h\u00f2a l\u00f5i v\u00e0 \u201cl\u00e0m m\u00f9\u201d thi\u1ebft b\u1ecb \u0111\u1ed1i v\u1edbi c\u00e1c s\u1ef1 c\u1ed1 ch\u1ea1m \u0111\u1ea5t xoay chi\u1ec1u. \u0110i\u1ec1u kho\u1ea3n 9.9.4 ki\u1ec3m tra \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch ch\u1ed3ng 6 mA DC trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m \u0111\u1eb7c t\u00ednh ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng\u2014RCCB v\u1eabn ph\u1ea3i t\u00e1c \u0111\u1ed9ng trong gi\u1edbi h\u1ea1n. Y\u00eau c\u1ea7u n\u00e0y ng\u0103n ch\u1eb7n k\u1ecbch b\u1ea3n nguy hi\u1ec3m khi t\u1ea3i ch\u1ec9nh l\u01b0u (m\u00e1y gi\u1eb7t, VFD) r\u00f2 r\u1ec9 DC v\u00e0 v\u00f4 hi\u1ec7u h\u00f3a b\u1ea3o v\u1ec7 ch\u1ed1ng \u0111i\u1ec7n gi\u1eadt.<\/p>\n<h2>Y\u00eau c\u1ea7u ki\u1ec3m tra<\/h2>\n<p>\u0110i\u1ec1u kho\u1ea3n 9 c\u1ee7a IEC 61008-1 ch\u1ee9a \u0111\u1ef1ng c\u1ed1t l\u00f5i c\u1ee7a s\u1ef1 tu\u00e2n th\u1ee7: c\u00e1c th\u1eed nghi\u1ec7m ki\u1ec3u m\u00e0 m\u1ecdi thi\u1ebft k\u1ebf RCCB ph\u1ea3i v\u01b0\u1ee3t qua tr\u01b0\u1edbc khi \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn. C\u00e1c th\u1eed nghi\u1ec7m n\u00e0y x\u00e1c nh\u1eadn r\u1eb1ng c\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1ecbnh m\u1ee9c chuy\u1ec3n th\u00e0nh hi\u1ec7u su\u1ea5t th\u1ef1c t\u1ebf d\u01b0\u1edbi \u00e1p l\u1ef1c\u2014nhi\u1ec7t, \u0111\u1ed9 \u1ea9m, s\u1ed1c c\u01a1 h\u1ecdc, qu\u00e1 \u0111\u1ed9 \u0111i\u1ec7n v\u00e0 l\u1ef1c ng\u1eafn m\u1ea1ch.<\/p>\n<h3>T\u1ed5ng quan v\u1ec1 Th\u1eed nghi\u1ec7m Ki\u1ec3u<\/h3>\n<p>Th\u1eed nghi\u1ec7m ki\u1ec3u mang t\u00ednh ph\u00e1 h\u1ee7y, to\u00e0n di\u1ec7n v\u00e0 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u00ean c\u00e1c m\u1eabu \u0111\u1ea1i di\u1ec7n tr\u01b0\u1edbc khi s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t. Ti\u00eau chu\u1ea9n c\u1ea5u tr\u00fac c\u00e1c th\u1eed nghi\u1ec7m theo h\u1ecd, m\u1ed7i h\u1ecd th\u0103m d\u00f2 m\u1ed9t ch\u1ebf \u0111\u1ed9 l\u1ed7i kh\u00e1c nhau:<\/p>\n<ul>\n<li><strong>Ghi nh\u00e3n v\u00e0 c\u1ea5u tr\u00fac:<\/strong> X\u00e1c minh r\u1eb1ng c\u00e1c d\u1ea5u hi\u1ec7u l\u00e0 v\u0129nh vi\u1ec5n, c\u00e1c \u0111\u1ea7u n\u1ed1i ch\u1ea5p nh\u1eadn k\u00edch th\u01b0\u1edbc d\u00e2y d\u1eabn \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh v\u00e0 c\u00e1c c\u1ee5m c\u01a1 kh\u00ed \u0111\u00e1p \u1ee9ng dung sai k\u00edch th\u01b0\u1edbc.<\/li>\n<li><strong>B\u1ea3o v\u1ec7 ch\u1ed1ng \u0111i\u1ec7n gi\u1eadt:<\/strong> Ki\u1ec3m tra k\u00edch th\u01b0\u1edbc b\u1eb1ng ng\u00f3n tay th\u1eed ti\u00eau chu\u1ea9n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c b\u1ed9 ph\u1eadn mang \u0111i\u1ec7n v\u1eabn kh\u00f4ng th\u1ec3 ti\u1ebfp c\u1eadn \u0111\u01b0\u1ee3c.<\/li>\n<li><strong>\u0110\u1eb7c t\u00ednh \u0111i\u1ec7n m\u00f4i:<\/strong> G\u00e2y \u1ee9ng su\u1ea5t cho h\u1ec7 th\u1ed1ng c\u00e1ch \u0111i\u1ec7n th\u00f4ng qua \u0111i\u1ec1u ki\u1ec7n h\u00f3a tr\u01b0\u1edbc \u0111\u1ed9 \u1ea9m, th\u1eed nghi\u1ec7m \u0111i\u1ec7n tr\u1edf c\u00e1ch \u0111i\u1ec7n v\u00e0 th\u1eed nghi\u1ec7m ch\u1ecbu xung \u0111i\u1ec7n \u00e1p cao (l\u00ean \u0111\u1ebfn 8kV).<\/li>\n<li><strong>Th\u1eed nghi\u1ec7m t\u0103ng nhi\u1ec7t \u0111\u1ed9:<\/strong> X\u00e1c minh r\u1eb1ng nhi\u1ec7t \u0111\u1ed9 ti\u1ebfp x\u00fac t\u0103ng n\u1eb1m trong gi\u1edbi h\u1ea1n (th\u01b0\u1eddng l\u00e0 t\u1ed1i \u0111a 50K) d\u01b0\u1edbi d\u00f2ng \u0111i\u1ec7n \u0111\u1ecbnh m\u1ee9c li\u00ean t\u1ee5c.<\/li>\n<li><strong>\u0110\u1eb7c t\u00ednh ho\u1ea1t \u0111\u1ed9ng:<\/strong> Tr\u1ecdng t\u00e2m c\u1ee7a th\u1eed nghi\u1ec7m ch\u1ee9c n\u0103ng, x\u00e1c minh th\u1eddi gian t\u00e1c \u0111\u1ed9ng \u1edf c\u00e1c m\u1ee9c d\u00f2ng \u0111i\u1ec7n d\u01b0 kh\u00e1c nhau, g\u00f3c pha v\u00e0 \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/li>\n<li><strong>H\u00e0nh vi ng\u1eafn m\u1ea1ch:<\/strong> Ph\u1ed1i h\u1ee3p v\u1edbi SCPD, RCCB ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi d\u00f2ng \u0111i\u1ec7n t\u1edbi h\u1ea1n l\u00ean \u0111\u1ebfn Inc. N\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c h\u00e0n d\u00ednh c\u00e1c ti\u1ebfp \u0111i\u1ec3m ho\u1eb7c ph\u00e2n h\u1ee7y.<\/li>\n<li><strong>\u0110\u1ed9 b\u1ec1n:<\/strong> 4.000 chu k\u1ef3 c\u01a1 h\u1ecdc v\u00e0 2.000 chu k\u1ef3 \u0111i\u1ec7n \u0111\u1ec3 m\u00f4 ph\u1ecfng nhi\u1ec1u n\u0103m v\u1eadn h\u00e0nh tr\u00ean th\u1ef1c t\u1ebf.<\/li>\n<\/ul>\n<h3>C\u00e1c Th\u1eed nghi\u1ec7m Chuy\u00ean bi\u1ec7t (Y\u00eau c\u1ea7u M\u1edbi v\u00e0 N\u00e2ng cao)<\/h3>\n<p><strong>Th\u1eed nghi\u1ec7m kh\u1ea3 n\u0103ng mi\u1ec5n nhi\u1ec5m xung:<\/strong> Hai th\u1eed nghi\u1ec7m b\u1ed5 sung gi\u1ea3i quy\u1ebft c\u00e1c m\u1ed1i \u0111e d\u1ecda qu\u00e1 \u0111\u1ed9 kh\u00e1c nhau. S\u00f3ng v\u00f2ng 0.5 \u03bcs \/ 100 kHz cho qu\u00e1 \u0111\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 d\u00f2ng \u0111i\u1ec7n xung 8\/20 \u03bcs (l\u00ean \u0111\u1ebfn 3000A) cho xung do s\u00e9t g\u00e2y ra.<\/p>\n<p><strong>Th\u1eed nghi\u1ec7m th\u00e0nh ph\u1ea7n DC cho Lo\u1ea1i A:<\/strong> RCCB Lo\u1ea1i A ph\u1ea3i ch\u1ee9ng minh r\u1eb1ng ch\u00fang v\u1eabn c\u00f3 th\u1ec3 t\u00e1c \u0111\u1ed9ng tr\u00ean c\u00e1c s\u1ef1 c\u1ed1 xoay chi\u1ec1u trong khi 6 mA DC tr\u01a1n b\u00e3o h\u00f2a l\u00f5i.<\/p>\n<p><strong>Kh\u1ea3 n\u0103ng Ch\u1ecbu Qu\u00e1 \u0110i\u1ec7n \u00c1p T\u1ea1m Th\u1eddi (TOV) \u2013 M\u1edaI trong Phi\u00ean b\u1ea3n 2024:<\/strong> B\u1ed5 sung quan tr\u1ecdng nh\u1ea5t c\u1ee7a phi\u00ean b\u1ea3n 2024. RCCB gi\u1edd \u0111\u00e2y ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi c\u00e1c th\u1eed nghi\u1ec7m qu\u00e1 \u0111i\u1ec7n \u00e1p k\u00e9o d\u00e0i m\u00f4 ph\u1ecfng c\u00e1c nhi\u1ec5u lo\u1ea1n l\u01b0\u1edbi \u0111i\u1ec7n. RCCB ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c 1,5 \u00d7 Un trong m\u1ed9t kho\u1ea3ng th\u1eddi gian quy \u0111\u1ecbnh m\u00e0 kh\u00f4ng b\u1ecb ng\u1eaft ho\u1eb7c h\u1ecfng h\u00f3c. \u0110i\u1ec1u n\u00e0y gi\u1ea3i quy\u1ebft c\u00e1c s\u1ef1 c\u1ed1 th\u1ef1c t\u1ebf quan s\u00e1t \u0111\u01b0\u1ee3c khi t\u00edch h\u1ee3p n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o.<\/p>\n<h2>Tu\u00e2n th\u1ee7 v\u00e0 Ch\u1ee9ng nh\u1eadn<\/h2>\n<p>V\u01b0\u1ee3t qua c\u00e1c th\u1eed nghi\u1ec7m ri\u00eang l\u1ebb l\u00e0 c\u1ea7n thi\u1ebft, nh\u01b0ng ch\u01b0a \u0111\u1ee7. IEC 61008-1 c\u1ea5u tr\u00fac s\u1ef1 tu\u00e2n th\u1ee7 th\u00f4ng qua c\u00e1c ph\u1ee5 l\u1ee5c x\u00e1c \u0111\u1ecbnh tr\u00ecnh t\u1ef1 th\u1eed nghi\u1ec7m, s\u1ed1 l\u01b0\u1ee3ng m\u1eabu v\u00e0 x\u00e1c minh li\u00ean t\u1ee5c.<\/p>\n<h3>Ph\u1ee5 l\u1ee5c A: Tr\u00ecnh T\u1ef1 Th\u1eed Nghi\u1ec7m v\u00e0 S\u1ed1 L\u01b0\u1ee3ng M\u1eabu<\/h3>\n<p>Ph\u1ee5 l\u1ee5c A \u0111i\u1ec1u ph\u1ed1i ch\u01b0\u01a1ng tr\u00ecnh th\u1eed nghi\u1ec7m \u0111i\u1ec3n h\u00ecnh. Ch\u1ee9ng nh\u1eadn \u0111i\u1ec3n h\u00ecnh y\u00eau c\u1ea7u 12-20 m\u1eabu RCCB t\u00f9y thu\u1ed9c v\u00e0o ph\u1ea1m vi s\u1ea3n ph\u1ea9m. C\u00e1c m\u1eabu \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c tr\u00ecnh t\u1ef1 (v\u00ed d\u1ee5: kh\u00f4ng ph\u00e1 h\u1ee7y, \u0111i\u1ec7n m\u00f4i, ng\u1eafn m\u1ea1ch, \u0111\u1ed9 b\u1ec1n) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o x\u00e1c th\u1ef1c k\u1ef9 l\u01b0\u1ee1ng.<\/p>\n<h3>Ph\u1ee5 l\u1ee5c D: Th\u1eed Nghi\u1ec7m Th\u01b0\u1eddng Xuy\u00ean cho S\u1ea3n Xu\u1ea5t<\/h3>\n<p>Th\u1eed nghi\u1ec7m \u0111i\u1ec3n h\u00ecnh x\u00e1c nh\u1eadn thi\u1ebft k\u1ebf. Th\u1eed nghi\u1ec7m th\u01b0\u1eddng xuy\u00ean x\u00e1c nh\u1eadn m\u1ecdi thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t. C\u00e1c th\u1eed nghi\u1ec7m th\u01b0\u1eddng xuy\u00ean b\u1eaft bu\u1ed9c bao g\u1ed3m \u0111\u1ed9 b\u1ec1n \u0111i\u1ec7n m\u00f4i, x\u00e1c minh \u0111\u1eb7c t\u00ednh ho\u1ea1t \u0111\u1ed9ng v\u00e0 th\u1eed nghi\u1ec7m c\u01a1 ch\u1ebf c\u1eaft t\u1ef1 do.<\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>IEC 61008-1 chuy\u1ec3n \u0111\u1ed5i vi\u1ec7c ph\u00f2ng ng\u1eeba \u0111i\u1ec7n gi\u1eadt t\u1eeb nguy\u00ean t\u1eafc an to\u00e0n th\u00e0nh hi\u1ec7n th\u1ef1c k\u1ef9 thu\u1eadt. C\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1ecbnh m\u1ee9c c\u1ee7a ti\u00eau chu\u1ea9n x\u00e1c \u0111\u1ecbnh ranh gi\u1edbi; c\u00e1c \u0111\u01b0\u1eddng cong th\u1eddi gian-d\u00f2ng \u0111i\u1ec7n c\u1ee7a n\u00f3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 nh\u1ea1y nh\u1ea5t qu\u00e1n; c\u00e1c giao th\u1ee9c th\u1eed nghi\u1ec7m c\u1ee7a n\u00f3 x\u00e1c nh\u1eadn hi\u1ec7u su\u1ea5t d\u01b0\u1edbi \u00e1p l\u1ef1c. \u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t, \u0111\u00f3 l\u00e0 b\u1ea3n thi\u1ebft k\u1ebf cho thi\u1ebft k\u1ebf \u0111\u00e1ng tin c\u1eady. \u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi ch\u1ec9 \u0111\u1ecbnh, \u0111\u00f3 l\u00e0 ng\u00f4n ng\u1eef chung k\u1ebft n\u1ed1i c\u00e1c y\u00eau c\u1ea7u \u1ee9ng d\u1ee5ng v\u00e0 kh\u1ea3 n\u0103ng s\u1ea3n ph\u1ea9m. \u0110\u1ed1i v\u1edbi c\u00e1c \u0111\u1ed9i ng\u0169 mua s\u1eafm, \u0111\u00f3 l\u00e0 khu\u00f4n kh\u1ed5 x\u00e1c minh ph\u00e2n bi\u1ec7t s\u1ef1 tu\u00e2n th\u1ee7 th\u1ef1c s\u1ef1 v\u1edbi c\u00e1c tuy\u00ean b\u1ed1 ti\u1ebfp th\u1ecb.<\/p>\n<p>Phi\u00ean b\u1ea3n 2024 ph\u1ea3n \u00e1nh m\u00f4i tr\u01b0\u1eddng \u0111i\u1ec7n \u0111ang ph\u00e1t tri\u1ec3n\u2014qu\u00e1 \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o, s\u1ef1 gia t\u0103ng c\u1ee7a t\u1ea3i \u0111i\u1ec7n t\u1eed, s\u1ef1 b\u1ea5t \u1ed5n c\u1ee7a l\u01b0\u1edbi \u0111i\u1ec7n. Th\u1eed nghi\u1ec7m qu\u00e1 \u0111i\u1ec7n \u00e1p t\u1ea1m th\u1eddi, c\u1ea5u tr\u00fac h\u00e0i h\u00f2a v\u00e0 x\u00e1c nh\u1eadn \u0111i\u1ec7n m\u00f4i n\u00e2ng cao \u0111\u1ea3m b\u1ea3o RCCB theo k\u1ecbp c\u00e1c c\u00e0i \u0111\u1eb7t hi\u1ec7n \u0111\u1ea1i. Khi bi\u1ebfn t\u1ea7n m\u1eb7t tr\u1eddi, b\u1ed9 s\u1ea1c EV v\u00e0 \u1ed5 \u0111\u0129a t\u1ea7n s\u1ed1 thay \u0111\u1ed5i tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n thay v\u00ec ngo\u1ea1i l\u1ec7, IEC 61008-1:2024 cung c\u1ea5p n\u1ec1n t\u1ea3ng cho s\u1ef1 b\u1ea3o v\u1ec7 kh\u00f4ng ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng trong \u0111i\u1ec1u ki\u1ec7n ph\u00f2ng th\u00ed nghi\u1ec7m l\u00fd t\u01b0\u1edfng, m\u00e0 c\u00f2n trong c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p, \u0111\u1ea7y qu\u00e1 \u0111\u1ed9 m\u00e0 ch\u00fang ta th\u1ef1c s\u1ef1 \u0111ang x\u00e2y d\u1ef1ng.<\/p>\n<p>T\u1ea1i VIOX Electric, s\u1ef1 tu\u00e2n th\u1ee7 IEC 61008-1 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t h\u1ed9p ki\u1ec3m\u2014\u0111\u00f3 l\u00e0 \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u. C\u00e1c d\u00f2ng VKL11, VML01B v\u00e0 VKL11F c\u1ee7a ch\u00fang t\u00f4i \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee7a phi\u00ean b\u1ea3n 2024 v\u1edbi c\u00e1c bi\u00ean \u0111\u1ed9 \u0111\u01b0\u1ee3c x\u00e1c minh th\u00f4ng qua ch\u1ee9ng nh\u1eadn \u0111\u1ed9c l\u1eadp. Ch\u00fang t\u00f4i duy tr\u00ec kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c \u0111\u1ea7y \u0111\u1ee7 t\u1eeb nguy\u00ean li\u1ec7u th\u00f4 \u0111\u1ebfn th\u1eed nghi\u1ec7m s\u1ea3n xu\u1ea5t, \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi h\u01a1n 20 n\u0103m kinh nghi\u1ec7m s\u1ea3n xu\u1ea5t v\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 c\u1ed1 th\u1ef1c t\u1ebf n\u00e0o b\u1eaft ngu\u1ed3n t\u1eeb vi\u1ec7c kh\u00f4ng tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n.<\/p>\n<p><strong>B\u1ea1n \u0111\u00e3 s\u1eb5n s\u00e0ng ch\u1ec9 \u0111\u1ecbnh RCCB tu\u00e2n th\u1ee7 IEC 61008-1 cho d\u1ef1 \u00e1n c\u1ee7a m\u00ecnh ch\u01b0a?<\/strong><\/p>\n<p><a href=\"https:\/\/test.viox.com\/vi\/contact\/\">Li\u00ean h\u1ec7<\/a> \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n k\u1ef9 thu\u1eadt, b\u00e1o c\u00e1o th\u1eed nghi\u1ec7m v\u00e0 h\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn s\u1ea3n ph\u1ea9m.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>When an electrical engineer stamps a drawing with &#8220;IEC 61008-1 compliant RCCBs required,&#8221; that single line triggers a chain of technical decisions\u2014rated voltages, sensitivity thresholds, short-circuit coordination, test protocols. For manufacturers submitting devices to certification bodies, IEC 61008-1 represents months of design validation and hundreds of test cycles. For procurement managers evaluating supplier claims, it&#8217;s [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":20501,"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-20499","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\/20499","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=20499"}],"version-history":[{"count":2,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/20499\/revisions"}],"predecessor-version":[{"id":20502,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/20499\/revisions\/20502"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/20501"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=20499"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=20499"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=20499"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}