{"id":21397,"date":"2026-01-22T01:59:46","date_gmt":"2026-01-21T17:59:46","guid":{"rendered":"https:\/\/viox.com\/?p=21397"},"modified":"2026-01-22T02:06:59","modified_gmt":"2026-01-21T18:06:59","slug":"understanding-afdd-iec-62606-arc-fault-protection","status":"publish","type":"post","link":"https:\/\/test.viox.com\/vi\/understanding-afdd-iec-62606-arc-fault-protection\/","title":{"rendered":"T\u00ecm hi\u1ec3u v\u1ec1 AFDD: Ti\u00eau chu\u1ea9n IEC v\u1ec1 b\u1ea3o v\u1ec7 ch\u1ed1ng h\u1ed3 quang \u0111i\u1ec7n"},"content":{"rendered":"<div class=\"product-intro\">\n<p>H\u1ecfa ho\u1ea1n do \u0111i\u1ec7n v\u1eabn l\u00e0 m\u1ed9t trong nh\u1eefng r\u1ee7i ro \u0111\u00e1ng k\u1ec3 nh\u1ea5t trong c\u00e1c t\u00f2a nh\u00e0 d\u00e2n c\u01b0 v\u00e0 th\u01b0\u01a1ng m\u1ea1i, v\u1edbi m\u1ed9t t\u1ef7 l\u1ec7 \u0111\u00e1ng k\u1ec3 l\u00e0 do s\u1ef1 c\u1ed1 h\u1ed3 quang. Trong khi c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 m\u1ea1ch ti\u00eau chu\u1ea9n nh\u01b0 MCB (Aptomat) v\u00e0 <a href=\"https:\/\/test.viox.com\/vi\/rccb\/\">Thi\u1ebft b\u1ecb ch\u1ed1ng d\u00f2ng r\u00f2 (RCD)<\/a> l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft, ch\u00fang c\u00f3 m\u1ed9t \u0111i\u1ec3m m\u00f9: ch\u00fang kh\u00f4ng th\u1ec3 ph\u00e1t hi\u1ec7n ra d\u1ea5u hi\u1ec7u \u0111\u1eb7c tr\u01b0ng c\u1ee7a m\u1ed9t h\u1ed3 quang \u0111i\u1ec7n nguy hi\u1ec3m.<\/p>\n<p>\u0110\u00e2y l\u00e0 n\u01a1i c\u00e1c <strong>Thi\u1ebft b\u1ecb ph\u00e1t hi\u1ec7n h\u1ed3 quang (AFDD)<\/strong> tr\u1edf n\u00ean quan tr\u1ecdng. L\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t h\u00e0ng \u0111\u1ea7u v\u1ec1 thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 \u0111i\u1ec7n, VIOX Electric cam k\u1ebft n\u00e2ng cao c\u00e1c ti\u00eau chu\u1ea9n an to\u00e0n th\u00f4ng qua c\u00f4ng ngh\u1ec7 tu\u00e2n th\u1ee7, hi\u1ec7u su\u1ea5t cao.<\/p>\n<p>H\u01b0\u1edbng d\u1eabn n\u00e0y kh\u00e1m ph\u00e1 k\u1ef9 thu\u1eadt \u0111\u1eb1ng sau AFDD, c\u00e1c y\u00eau c\u1ea7u nghi\u00eam ng\u1eb7t c\u1ee7a <strong>IEC 62606<\/strong> ti\u00eau chu\u1ea9n v\u00e0 l\u00fd do t\u1ea1i sao vi\u1ec7c t\u00edch h\u1ee3p c\u00e1c thi\u1ebft b\u1ecb n\u00e0y kh\u00f4ng c\u00f2n l\u00e0 t\u00f9y ch\u1ecdn cho c\u00e1c chi\u1ebfn l\u01b0\u1ee3c an to\u00e0n \u0111i\u1ec7n hi\u1ec7n \u0111\u1ea1i.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/VIOX-AFDD-arc-fault-detection-device-mounted-on-DIN-rail-showing-LED-indicators-and-test-button.webp\" alt=\"VIOX AFDD Arc Fault Detection Device mounted on DIN rail showing LED indicators and test button\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px; font-size: 0.9em;\">H\u00ecnh 1: AFDD VIOX \u0111\u01b0\u1ee3c g\u1eafn tr\u00ean thanh DIN, c\u00f3 \u0111\u00e8n LED b\u00e1o tr\u1ea1ng th\u00e1i r\u00f5 r\u00e0ng \u0111\u1ec3 theo d\u00f5i tr\u1ea1ng th\u00e1i v\u00e0 n\u00fat ki\u1ec3m tra chuy\u00ean d\u1ee5ng.<\/figcaption><\/figure>\n<h2>AFDD l\u00e0 g\u00ec v\u00e0 t\u1ea1i sao n\u00f3 l\u1ea1i quan tr\u1ecdng?<\/h2>\n<p>M\u1ed9t <strong>Thi\u1ebft b\u1ecb ph\u00e1t hi\u1ec7n h\u1ed3 quang (AFDD)<\/strong> l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3m thi\u1ec3u nguy c\u01a1 h\u1ecfa ho\u1ea1n trong c\u00e1c m\u1ea1ch cu\u1ed1i c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t c\u1ed1 \u0111\u1ecbnh do \u1ea3nh h\u01b0\u1edfng c\u1ee7a d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 h\u1ed3 quang.<\/p>\n<p>H\u1ed3 quang \u0111i\u1ec7n l\u00e0 s\u1ef1 ph\u00f3ng \u0111i\u1ec7n ph\u00e1t s\u00e1ng qua m\u1ed9t m\u00f4i tr\u01b0\u1eddng c\u00e1ch \u0111i\u1ec7n, th\u01b0\u1eddng \u0111i k\u00e8m v\u1edbi s\u1ef1 bay h\u01a1i m\u1ed9t ph\u1ea7n c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c. C\u00e1c h\u1ed3 quang n\u00e0y c\u00f3 th\u1ec3 t\u1ea1o ra nhi\u1ec7t \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 <strong>6.000\u00b0C<\/strong>, d\u1ec5 d\u00e0ng \u0111\u1ed1t ch\u00e1y l\u1edbp c\u00e1ch \u0111i\u1ec7n, g\u1ed7 ho\u1eb7c b\u1ee5i xung quanh.<\/p>\n<p>C\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 truy\u1ec1n th\u1ed1ng c\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee5 th\u1ec3:<\/p>\n<ul>\n<li><a href=\"https:\/\/test.viox.com\/vi\/mcb\/\"><strong>C\u00f4ng<\/strong><\/a> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ng\u1eaft m\u1ea1ch trong qu\u00e1 tr\u00ecnh qu\u00e1 t\u1ea3i ho\u1eb7c ng\u1eafn m\u1ea1ch (s\u1ef1 ki\u1ec7n d\u00f2ng \u0111i\u1ec7n cao).<\/li>\n<li><strong>RCD<\/strong> ph\u00e1t hi\u1ec7n d\u00f2ng \u0111i\u1ec7n r\u00f2 r\u1ec9 xu\u1ed1ng \u0111\u1ea5t (b\u1ea3o v\u1ec7 ch\u1ed1ng \u0111i\u1ec7n gi\u1eadt).<\/li>\n<\/ul>\n<p>Kh\u00f4ng thi\u1ebft b\u1ecb n\u00e0o c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady <strong>s\u1ef1 c\u1ed1 h\u1ed3 quang n\u1ed1i ti\u1ebfp<\/strong> (khi d\u00e2y b\u1ecb \u0111\u1ee9t nh\u01b0ng kh\u00f4ng ch\u1ea1m \u0111\u1ea5t) ho\u1eb7c \u0111i\u1ec7n tr\u1edf cao <strong>s\u1ef1 c\u1ed1 h\u1ed3 quang song song<\/strong> n\u01a1i d\u00f2ng \u0111i\u1ec7n th\u1ea5p h\u01a1n ng\u01b0\u1ee1ng ng\u1eaft t\u1eeb c\u1ee7a MCB. AFDD l\u1ea5p \u0111\u1ea7y kho\u1ea3ng tr\u1ed1ng an to\u00e0n quan tr\u1ecdng n\u00e0y.<\/p>\n<h2>Ti\u00eau chu\u1ea9n IEC 62606: Ti\u00eau chu\u1ea9n to\u00e0n c\u1ea7u<\/h2>\n<p>Ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf chi ph\u1ed1i vi\u1ec7c x\u00e2y d\u1ef1ng, th\u1eed nghi\u1ec7m v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a AFDD l\u00e0 <strong>IEC 62606: \u201cY\u00eau c\u1ea7u chung \u0111\u1ed1i v\u1edbi thi\u1ebft b\u1ecb ph\u00e1t hi\u1ec7n h\u1ed3 quang.\u201d<\/strong><\/p>\n<p>\u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi mua B2B v\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t t\u1ee7 \u0111i\u1ec7n, vi\u1ec7c \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 IEC 62606 l\u00e0 \u0111i\u1ec1u kh\u00f4ng th\u1ec3 th\u01b0\u01a1ng l\u01b0\u1ee3ng. Ti\u00eau chu\u1ea9n n\u00e0y quy \u0111\u1ecbnh r\u1eb1ng AFDD ph\u1ea3i:<\/p>\n<ol>\n<li><strong>Ph\u00e1t hi\u1ec7n<\/strong> c\u00e1c s\u1ef1 c\u1ed1 h\u1ed3 quang nguy hi\u1ec3m.<\/li>\n<li><strong>Ph\u00e2n bi\u1ec7t<\/strong> gi\u1eefa h\u1ed3 quang nguy hi\u1ec3m v\u00e0 h\u1ed3 quang v\u1eadn h\u00e0nh (nh\u01b0 t\u1eeb \u0111\u1ed9ng c\u01a1 ch\u1ed5i than ho\u1eb7c c\u00f4ng t\u1eafc \u0111\u00e8n).<\/li>\n<li><strong>C\u00e1ch ly<\/strong> m\u1ea1ch trong gi\u1edbi h\u1ea1n th\u1eddi gian quy \u0111\u1ecbnh \u0111\u1ec3 ng\u0103n ng\u1eeba h\u1ecfa ho\u1ea1n.<\/li>\n<\/ol>\n<h3>C\u00e1c lo\u1ea1i c\u1ea5u tr\u00fac IEC 62606<\/h3>\n<p>Ti\u00eau chu\u1ea9n cho ph\u00e9p ba ph\u01b0\u01a1ng ph\u00e1p x\u00e2y d\u1ef1ng ch\u00ednh, mang l\u1ea1i s\u1ef1 linh ho\u1ea1t trong thi\u1ebft k\u1ebf cho c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t t\u1ee7 \u0111i\u1ec7n:<\/p>\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"text-align: left;\">Lo\u1ea1i c\u1ea5u tr\u00fac<\/th>\n<th style=\"text-align: left;\">M\u00f4 t\u1ea3<\/th>\n<th style=\"text-align: left;\">T\u00edch h\u1ee3p<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>AFDD t\u00edch h\u1ee3p<\/strong><\/td>\n<td>M\u1ed9t thi\u1ebft b\u1ecb duy nh\u1ea5t bao g\u1ed3m c\u1ea3 b\u1ed9 AFD v\u00e0 thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 (MCB ho\u1eb7c RCBO).<\/td>\n<td>Ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u1ec3 ti\u1ebft ki\u1ec7m kh\u00f4ng gian trong c\u00e1c thi\u1ebft b\u1ecb ti\u00eau d\u00f9ng.<\/td>\n<\/tr>\n<tr>\n<td><strong>AFDD d\u1ea1ng Pod\/Add-on<\/strong><\/td>\n<td>M\u1ed9t b\u1ed9 AFD \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 l\u1eafp r\u00e1p c\u01a1 h\u1ecdc v\u00e0 \u0111i\u1ec7n t\u1ea1i ch\u1ed7 v\u1edbi m\u1ed9t thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 c\u1ee5 th\u1ec3.<\/td>\n<td>Linh ho\u1ea1t \u0111\u1ec3 trang b\u1ecb th\u00eam cho c\u00e1c t\u1ee7 \u0111i\u1ec7n hi\u1ec7n c\u00f3.<\/td>\n<\/tr>\n<tr>\n<td><strong>AFDD \u0111\u1ed9c l\u1eadp<\/strong><\/td>\n<td>M\u1ed9t thi\u1ebft b\u1ecb duy nh\u1ea5t ch\u1ec9 cung c\u1ea5p kh\u1ea3 n\u0103ng ph\u00e1t hi\u1ec7n h\u1ed3 quang v\u00e0 ph\u01b0\u01a1ng ti\u1ec7n m\u1edf, kh\u00f4ng c\u00f3 b\u1ea3o v\u1ec7 ng\u1eafn m\u1ea1ch ho\u1eb7c r\u00f2 r\u1ec9 \u0111\u1ea5t t\u00edch h\u1ee3p.<\/td>\n<td>Hi\u1ebfm g\u1eb7p; th\u01b0\u1eddng y\u00eau c\u1ea7u b\u1ea3o v\u1ec7 \u1edf th\u01b0\u1ee3ng ngu\u1ed3n.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00f4ng ngh\u1ec7 AFDD<\/h2>\n<p>Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch c\u01a1 \u0111i\u1ec7n, AFDD l\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ho\u00e0n to\u00e0n. Ch\u00fang s\u1eed d\u1ee5ng b\u1ed9 vi x\u1eed l\u00fd ti\u00ean ti\u1ebfn v\u00e0 c\u00e1c thu\u1eadt to\u00e1n ph\u1ee9c t\u1ea1p \u0111\u1ec3 li\u00ean t\u1ee5c ph\u00e2n t\u00edch d\u1ea1ng s\u00f3ng \u0111i\u1ec7n c\u1ee7a m\u1ea1ch.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/AFDD-internal-components-cutaway-diagram-showing-microprocessor-current-sensor-and-trip-mechanism.webp\" alt=\"AFDD internal components cutaway diagram showing microprocessor, current sensor, and trip mechanism\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px; font-size: 0.9em;\">H\u00ecnh 2: M\u1eb7t c\u1eaft b\u00ean trong c\u1ee7a AFDD cho th\u1ea5y chip vi x\u1eed l\u00fd, b\u1ea3ng m\u1ea1ch \u0111i\u1ec7n t\u1eed v\u00e0 cu\u1ed9n d\u00e2y c\u1ea3m bi\u1ebfn d\u00f2ng \u0111i\u1ec7n c\u1ea7n thi\u1ebft cho vi\u1ec7c ph\u00e1t hi\u1ec7n h\u1ed3 quang.<\/figcaption><\/figure>\n<h3>Thu\u1eadt to\u00e1n ph\u00e1t hi\u1ec7n<\/h3>\n<p>Thi\u1ebft b\u1ecb gi\u00e1m s\u00e1t m\u1ea1ch \u0111\u1ec3 t\u00ecm c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee5 th\u1ec3 c\u1ee7a h\u1ed3 quang:<\/p>\n<ol>\n<li><strong>Ti\u1ebfng \u1ed3n t\u1ea7n s\u1ed1 cao:<\/strong> H\u1ed3 quang t\u1ea1o ra \u201cti\u1ebfng \u1ed3n\u201d tr\u00ean m\u1ed9t ph\u1ed5 t\u1ea7n s\u1ed1 r\u1ed9ng. AFDD th\u01b0\u1eddng theo d\u00f5i <strong>100 kHz \u0111\u1ebfn 1 MHz<\/strong> ph\u1ea1m vi.<\/li>\n<li><strong>C\u00e1c b\u1ea5t th\u01b0\u1eddng v\u1ec1 d\u1ea1ng s\u00f3ng hi\u1ec7n t\u1ea1i:<\/strong> B\u1ed9 vi x\u1eed l\u00fd t\u00ecm ki\u1ebfm \u201cvai\u201d ho\u1eb7c kho\u1ea3ng tr\u1ed1ng trong s\u00f3ng sin (kho\u1ea3ng th\u1eddi gian d\u00f2ng \u0111i\u1ec7n b\u1eb1ng kh\u00f4ng) l\u00e0 \u0111\u1eb7c tr\u01b0ng c\u1ee7a h\u1ed3 quang.<\/li>\n<li><strong>Th\u1eddi l\u01b0\u1ee3ng &amp; N\u0103ng l\u01b0\u1ee3ng:<\/strong> \u0110\u1ec3 tr\u00e1nh ng\u1eaft m\u1ea1ch do nhi\u1ec5u, thi\u1ebft b\u1ecb t\u00ednh to\u00e1n t\u1ed5ng n\u0103ng l\u01b0\u1ee3ng c\u1ee7a h\u1ed3 quang \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem n\u00f3 c\u00f3 g\u00e2y ra nguy c\u01a1 h\u1ecfa ho\u1ea1n hay kh\u00f4ng.<\/li>\n<\/ol>\n<h3>Y\u00eau c\u1ea7u v\u1ec1 th\u1eddi gian ph\u1ea3n h\u1ed3i<\/h3>\n<p>IEC 62606 quy \u0111\u1ecbnh th\u1eddi gian ng\u1eaft t\u1ed1i \u0111a nghi\u00eam ng\u1eb7t d\u1ef1a tr\u00ean c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n h\u1ed3 quang. D\u00f2ng \u0111i\u1ec7n c\u00e0ng cao, thi\u1ebft b\u1ecb ph\u1ea3i ng\u1eaft c\u00e0ng nhanh.<\/p>\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"text-align: left;\">D\u00f2ng \u0111i\u1ec7n th\u1eed nghi\u1ec7m h\u1ed3 quang (A)<\/th>\n<th style=\"text-align: left;\">Th\u1eddi gian ng\u1eaft t\u1ed1i \u0111a (Gi\u00e2y)<\/th>\n<th style=\"text-align: left;\">C\u01a1 s\u1edf l\u00fd lu\u1eadn<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>2,5 A<\/td>\n<td>1,0 gi\u00e2y<\/td>\n<td>N\u0103ng l\u01b0\u1ee3ng th\u1ea5p h\u01a1n, l\u00e0m n\u00f3ng ch\u1eadm h\u01a1n.<\/td>\n<\/tr>\n<tr>\n<td>5 A<\/td>\n<td>0,5 gi\u00e2y<\/td>\n<td>R\u1ee7i ro v\u1eeba ph\u1ea3i.<\/td>\n<\/tr>\n<tr>\n<td>10 A<\/td>\n<td>0,25 gi\u00e2y<\/td>\n<td>Nguy c\u01a1 ch\u00e1y cao.<\/td>\n<\/tr>\n<tr>\n<td>32 A<\/td>\n<td>0,12 gi\u00e2y (120ms)<\/td>\n<td>Nguy c\u01a1 h\u1ecfa ho\u1ea1n t\u1ee9c th\u00ec; y\u00eau c\u1ea7u ng\u1eaft k\u1ebft n\u1ed1i nhanh ch\u00f3ng.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\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-normal-current-waveform-versus-arc-fault-signature-detected-by-AFDD.webp\" alt=\"Comparison of normal current waveform versus arc fault signature detected by AFDD\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px; font-size: 0.9em;\">H\u00ecnh 3: Ph\u00e2n t\u00edch b\u1eb1ng dao \u0111\u1ed9ng k\u00fd so s\u00e1nh d\u1ea1ng s\u00f3ng d\u00f2ng \u0111i\u1ec7n b\u00ecnh th\u01b0\u1eddng tr\u01a1n tru v\u1edbi s\u1ef1 b\u00f9ng n\u1ed5 t\u1ea7n s\u1ed1 cao th\u1ea5t th\u01b0\u1eddng c\u1ee7a s\u1ef1 c\u1ed1 h\u1ed3 quang.<\/figcaption><\/figure>\n<h2>C\u00e1c lo\u1ea1i s\u1ef1 c\u1ed1 h\u1ed3 quang: N\u1ed1i ti\u1ebfp so v\u1edbi song song<\/h2>\n<p>Hi\u1ec3u v\u1eadt l\u00fd c\u1ee7a h\u1ed3 quang l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 ch\u1ecdn bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 ph\u00f9 h\u1ee3p. \u0110\u1ec3 t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 c\u00e1ch h\u1ed3 quang \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c ng\u1eaft m\u1ea1ch, h\u00e3y xem h\u01b0\u1edbng d\u1eabn c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <a href=\"https:\/\/test.viox.com\/vi\/understanding-circuit-breaker-disconnection-the-essential-role-of-electric-arcs\/\">ng\u1eaft m\u1ea1ch v\u00e0 h\u1ed3 quang \u0111i\u1ec7n<\/a>.<\/p>\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"text-align: left;\">N\u0103ng<\/th>\n<th style=\"text-align: left;\">S\u1ef1 c\u1ed1 h\u1ed3 quang n\u1ed1i ti\u1ebfp<\/th>\n<th style=\"text-align: left;\">S\u1ef1 c\u1ed1 h\u1ed3 quang song song<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u0110\u1ecbnh ngh\u0129a<\/strong><\/td>\n<td>H\u1ed3 quang x\u1ea3y ra trong m\u1ed9t d\u00e2y d\u1eabn duy nh\u1ea5t (v\u00ed d\u1ee5: d\u00e2y b\u1ecb \u0111\u1ee9t ho\u1eb7c \u0111\u1ea7u n\u1ed1i l\u1ecfng l\u1ebbo).<\/td>\n<td>H\u1ed3 quang x\u1ea3y ra gi\u1eefa hai d\u00e2y d\u1eabn kh\u00e1c nhau (Pha-Trung t\u00ednh ho\u1eb7c Pha-\u0110\u1ea5t).<\/td>\n<\/tr>\n<tr>\n<td><strong>M\u1ee9c hi\u1ec7n t\u1ea1i<\/strong><\/td>\n<td><strong>Th\u1ea5p:<\/strong> B\u1ecb gi\u1edbi h\u1ea1n b\u1edfi tr\u1edf kh\u00e1ng t\u1ea3i. Th\u01b0\u1eddng &lt;20A.<\/td>\n<td><strong>Cao:<\/strong> Ch\u1ec9 b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi tr\u1edf kh\u00e1ng h\u1ec7 th\u1ed1ng. C\u00f3 th\u1ec3 &gt;75A.<\/td>\n<\/tr>\n<tr>\n<td><strong>Ph\u00e1t hi\u1ec7n MCB?<\/strong><\/td>\n<td><strong>KH\u00d4NG.<\/strong> D\u00f2ng \u0111i\u1ec7n d\u01b0\u1edbi ng\u01b0\u1ee1ng t\u00e1c \u0111\u1ed9ng.<\/td>\n<td><strong>\u0110\u00f4i khi.<\/strong> Ch\u1ec9 khi d\u00f2ng \u0111i\u1ec7n v\u01b0\u1ee3t qu\u00e1 m\u1ee9c t\u00e1c \u0111\u1ed9ng t\u1eeb.<\/td>\n<\/tr>\n<tr>\n<td><strong>Ph\u00e1t hi\u1ec7n RCD?<\/strong><\/td>\n<td><strong>KH\u00d4NG.<\/strong> Kh\u00f4ng r\u00f2 r\u1ec9 xu\u1ed1ng \u0111\u1ea5t.<\/td>\n<td><strong>C\u00f3 (n\u1ebfu Pha-\u0110\u1ea5t).<\/strong> Kh\u00f4ng (n\u1ebfu Pha-Trung t\u00ednh).<\/td>\n<\/tr>\n<tr>\n<td><strong>Ph\u00e1t hi\u1ec7n AFDD?<\/strong><\/td>\n<td><strong>\u0110\u00fang.<\/strong> Ch\u1ee9c n\u0103ng ch\u00ednh.<\/td>\n<td><strong>\u0110\u00fang.<\/strong> Ch\u1ee9c n\u0103ng ch\u00ednh.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>AFDD so v\u1edbi AFCI: Hi\u1ec3u s\u1ef1 kh\u00e1c bi\u1ec7t<\/h2>\n<p>C\u00e1c nh\u00e0 ph\u00e2n ph\u1ed1i B2B th\u01b0\u1eddng nh\u1ea7m l\u1eabn AFDD ti\u00eau chu\u1ea9n IEC v\u1edbi AFCI ti\u00eau chu\u1ea9n UL \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf B\u1eafc M\u1ef9. M\u1eb7c d\u00f9 ch\u00fang ph\u1ee5c v\u1ee5 c\u00e1c m\u1ee5c \u0111\u00edch t\u01b0\u01a1ng t\u1ef1, nh\u01b0ng ch\u00fang kh\u00f4ng th\u1ec3 ho\u00e1n \u0111\u1ed5i cho nhau.<\/p>\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"text-align: left;\">N\u0103ng<\/th>\n<th style=\"text-align: left;\">AFDD (IEC 62606)<\/th>\n<th style=\"text-align: left;\">AFCI (UL 1699)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Khu v\u1ef1c ch\u00ednh<\/strong><\/td>\n<td>Ch\u00e2u \u00c2u, V\u01b0\u01a1ng qu\u1ed1c Anh, \u00dac, Qu\u1ed1c t\u1ebf (IEC).<\/td>\n<td>Hoa K\u1ef3, Canada, B\u1eafc M\u1ef9 (NEC\/UL).<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0110i\u1ec7n \u00e1p\/T\u1ea7n s\u1ed1<\/strong><\/td>\n<td>230V \/ 50Hz (th\u01b0\u1eddng).<\/td>\n<td>120V \/ 60Hz.<\/td>\n<\/tr>\n<tr>\n<td><strong>Ph\u1ea1m vi ph\u00e1t hi\u1ec7n<\/strong><\/td>\n<td>T\u1eadp trung nhi\u1ec1u v\u00e0o c\u1ea3 h\u1ed3 quang n\u1ed1i ti\u1ebfp v\u00e0 song song.<\/td>\n<td>C\u00e1c phi\u00ean b\u1ea3n ban \u0111\u1ea7u ch\u1ee7 y\u1ebfu t\u1eadp trung v\u00e0o h\u1ed3 quang song song; AFCI \u201cK\u1ebft h\u1ee3p\u201d hi\u1ec7n \u0111\u1ea1i bao g\u1ed3m c\u1ea3 hai.<\/td>\n<\/tr>\n<tr>\n<td><strong>Ng\u01b0\u1ee1ng ng\u1eaft<\/strong><\/td>\n<td>2,5 Amps (ph\u00e1t hi\u1ec7n t\u1ed1i thi\u1ec3u).<\/td>\n<td>5 Amps (th\u01b0\u1eddng).<\/td>\n<\/tr>\n<tr>\n<td><strong>T\u00edch h\u1ee3p<\/strong><\/td>\n<td>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi RCBO (Qu\u00e1 d\u00f2ng + D\u00f2ng d\u01b0).<\/td>\n<td>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi b\u1ed9 ng\u1eaft m\u1ea1ch t\u1eeb nhi\u1ec7t ti\u00eau chu\u1ea9n.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0110\u1ec3 so s\u00e1nh chi ti\u1ebft c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7, h\u00e3y tham kh\u1ea3o <a href=\"https:\/\/test.viox.com\/vi\/rcbo-vs-afdd-difference-guide\/\">H\u01b0\u1edbng d\u1eabn v\u1ec1 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa RCBO v\u00e0 AFDD<\/a>.<\/p>\n<h2>Chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o v\u1ec7 to\u00e0n di\u1ec7n<\/h2>\n<p>AFDD kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 thay th\u1ebf cho MCB ho\u1eb7c RCD; ch\u00fang b\u1ed5 sung cho nhau. M\u1ed9t chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o v\u1ec7 ho\u00e0n ch\u1ec9nh bao g\u1ed3m ba l\u1edbp ph\u00f2ng th\u1ee7.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Three-layer-electrical-protection-diagram-showing-MCB-RCD-and-AFDD-complementary-functions.webp\" alt=\"Three layer electrical protection diagram showing MCB, RCD, and AFDD complementary functions\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px; font-size: 0.9em;\">H\u00ecnh 4: H\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 \u0111i\u1ec7n 3 l\u1edbp ti\u00ean ti\u1ebfn cho th\u1ea5y MCB, RCD v\u00e0 AFDD ph\u1ed1i h\u1ee3p v\u1edbi nhau \u0111\u1ec3 bao ph\u1ee7 c\u00e1c lo\u1ea1i s\u1ef1 c\u1ed1 kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o.<\/figcaption><\/figure>\n<h3>B\u1ea3ng so s\u00e1nh b\u1ea3o v\u1ec7<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"text-align: left;\">Lo\u1ea1i L\u1ed7i<\/th>\n<th style=\"text-align: center;\">MCB<\/th>\n<th style=\"text-align: center;\">RCD\/RCCB<\/th>\n<th style=\"text-align: center;\">AFDD<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Qu\u00e1 t\u1ea3i<\/strong><\/td>\n<td style=\"text-align: center;\">\u2705<\/td>\n<td style=\"text-align: center;\">\u274c<\/td>\n<td style=\"text-align: center;\">\u274c (tr\u1eeb khi \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p)<\/td>\n<\/tr>\n<tr>\n<td><strong>Ng\u1eafn m\u1ea1ch<\/strong><\/td>\n<td style=\"text-align: center;\">\u2705<\/td>\n<td style=\"text-align: center;\">\u274c<\/td>\n<td style=\"text-align: center;\">\u274c (tr\u1eeb khi \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p)<\/td>\n<\/tr>\n<tr>\n<td><strong>R\u00f2 r\u1ec9 \u0111\u1ea5t<\/strong><\/td>\n<td style=\"text-align: center;\">\u274c<\/td>\n<td style=\"text-align: center;\">\u2705<\/td>\n<td style=\"text-align: center;\">\u274c (tr\u1eeb khi \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p)<\/td>\n<\/tr>\n<tr>\n<td><strong>H\u1ed3 quang song song (L-N)<\/strong><\/td>\n<td style=\"text-align: center;\">\u26a0\ufe0f (Ch\u1ec9 d\u00f2ng \u0111i\u1ec7n cao)<\/td>\n<td style=\"text-align: center;\">\u274c<\/td>\n<td style=\"text-align: center;\">\u2705<\/td>\n<\/tr>\n<tr>\n<td><strong>H\u1ed3 quang song song (L-E)<\/strong><\/td>\n<td style=\"text-align: center;\">\u26a0\ufe0f (Ch\u1ec9 d\u00f2ng \u0111i\u1ec7n cao)<\/td>\n<td style=\"text-align: center;\">\u2705<\/td>\n<td style=\"text-align: center;\">\u2705<\/td>\n<\/tr>\n<tr>\n<td><strong>H\u1ed3 quang n\u1ed1i ti\u1ebfp<\/strong><\/td>\n<td style=\"text-align: center;\">\u274c<\/td>\n<td style=\"text-align: center;\">\u274c<\/td>\n<td style=\"text-align: center;\">\u2705<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 c\u00e1ch ch\u1ecdn \u0111\u00fang t\u1ed5 h\u1ee3p thi\u1ebft b\u1ecb, h\u00e3y xem l\u1ea1i <a href=\"https:\/\/test.viox.com\/vi\/circuit-protection-selection-framework-a-5-step-guide-for-panel-builders-iec-60947\/\">khung l\u1ef1a ch\u1ecdn b\u1ea3o v\u1ec7 m\u1ea1ch c\u1ee7a ch\u00fang t\u00f4i<\/a>.<\/p>\n<h2>C\u00e0i \u0111\u1eb7t v\u00e0 \u1ee9ng d\u1ee5ng<\/h2>\n<p>Theo <strong>IEC 60364-4-42<\/strong>, vi\u1ec7c l\u1eafp \u0111\u1eb7t AFDD \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb (v\u00e0 \u1edf m\u1ed9t s\u1ed1 qu\u1ed1c gia l\u00e0 b\u1eaft bu\u1ed9c) cho c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00f3 r\u1ee7i ro cao c\u1ee5 th\u1ec3.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Professional-installation-of-VIOX-AFDD-breakers-in-commercial-electrical-distribution-panel.webp\" alt=\"Professional installation of VIOX AFDD breakers in commercial electrical distribution panel\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px; font-size: 0.9em;\">H\u00ecnh 5: M\u1ed9t th\u1ee3 \u0111i\u1ec7n chuy\u00ean nghi\u1ec7p l\u1eafp \u0111\u1eb7t b\u1ed9 ng\u1eaft m\u1ea1ch VIOX AFDD v\u00e0o b\u1ea3ng ph\u00e2n ph\u1ed1i th\u01b0\u01a1ng m\u1ea1i, \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 an to\u00e0n.<\/figcaption><\/figure>\n<h3>C\u00e1c l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng ch\u00ednh<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"text-align: left;\">Lo\u1ea1i \u0111\u1ecba \u0111i\u1ec3m<\/th>\n<th style=\"text-align: left;\">V\u00ed d\u1ee5<\/th>\n<th style=\"text-align: left;\">Y\u1ebfu t\u1ed1 r\u1ee7i ro<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Ch\u1ed7 \u1edf ng\u1ee7<\/strong><\/td>\n<td>Kh\u00e1ch s\u1ea1n, nh\u00e0 tr\u1ecd, ph\u00f2ng ng\u1ee7, nh\u00e0 ch\u0103m s\u00f3c.<\/td>\n<td>Th\u1eddi gian s\u01a1 t\u00e1n ch\u1eadm trong tr\u01b0\u1eddng h\u1ee3p h\u1ecfa ho\u1ea1n.<\/td>\n<\/tr>\n<tr>\n<td><strong>Nguy c\u01a1 h\u1ecfa ho\u1ea1n cao<\/strong><\/td>\n<td>Chu\u1ed3ng tr\u1ea1i, x\u01b0\u1edfng m\u1ed9c, nh\u00e0 m\u00e1y gi\u1ea5y.<\/td>\n<td>S\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a v\u1eadt li\u1ec7u d\u1ec5 ch\u00e1y.<\/td>\n<\/tr>\n<tr>\n<td><strong>C\u1ea5u tr\u00fac d\u1ec5 ch\u00e1y<\/strong><\/td>\n<td>C\u00e1c t\u00f2a nh\u00e0 b\u1eb1ng g\u1ed7.<\/td>\n<td>L\u1eeda lan nhanh.<\/td>\n<\/tr>\n<tr>\n<td><strong>H\u00e0ng h\u00f3a kh\u00f4ng th\u1ec3 thay th\u1ebf<\/strong><\/td>\n<td>Vi\u1ec7n b\u1ea3o t\u00e0ng, ph\u00f2ng tr\u01b0ng b\u00e0y, trung t\u00e2m d\u1eef li\u1ec7u.<\/td>\n<td>Gi\u00e1 tr\u1ecb t\u00e0i s\u1ea3n cao.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Khi l\u1eafp \u0111\u1eb7t AFDD, h\u00e3y \u0111\u1ea3m b\u1ea3o b\u1ea1n c\u0169ng tu\u00e2n th\u1ee7 <a href=\"https:\/\/test.viox.com\/vi\/electrical-cabinet-fire-protection-causes-prevention-guide\/\">h\u01b0\u1edbng d\u1eabn ph\u00f2ng ch\u00e1y ch\u1eefa ch\u00e1y t\u1ee7 \u0111i\u1ec7n<\/a>.<\/p>\n<h3>M\u1eb9o t\u00edch h\u1ee3p cho nh\u00e0 s\u1ea3n xu\u1ea5t b\u1ea3ng \u0111i\u1ec7n<\/h3>\n<ol>\n<li><strong>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a thanh c\u00e1i:<\/strong> \u0110\u1ea3m b\u1ea3o AFDD ph\u00f9 h\u1ee3p v\u1edbi h\u1ec7 th\u1ed1ng thanh c\u00e1i hi\u1ec7n c\u00f3. AFDD VIOX \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 l\u1eafp tr\u00ean ray DIN ti\u00eau chu\u1ea9n.<\/li>\n<li><strong>K\u1ebft n\u1ed1i trung t\u00ednh:<\/strong> H\u1ea7u h\u1ebft c\u00e1c AFDD l\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed v\u00e0 y\u00eau c\u1ea7u n\u1ed1i \u0111\u1ea5t ch\u1ee9c n\u0103ng ho\u1eb7c tham chi\u1ebfu trung t\u00ednh \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng. \u0110\u1ea3m b\u1ea3o \u0111\u00fang c\u1ef1c t\u00ednh.<\/li>\n<li><strong>Ki\u1ec3m tra:<\/strong> Kh\u00f4ng gi\u1ed1ng nh\u01b0 MCB, AFDD c\u00f3 n\u00fat ki\u1ec3m tra. N\u00fat n\u00e0y ki\u1ec3m tra m\u1ea1ch ph\u00e1t hi\u1ec7n h\u1ed3 quang \u0111i\u1ec7n t\u1eed, kh\u00f4ng ch\u1ec9 l\u00e0 c\u01a1 c\u1ea5u ng\u1eaft c\u01a1 h\u1ecdc.<\/li>\n<\/ol>\n<h2>L\u1ee3i \u00edch cho kh\u00e1ch h\u00e0ng B2B<\/h2>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 ph\u00e2n ph\u1ed1i v\u00e0 nh\u00e0 th\u1ea7u, vi\u1ec7c cung c\u1ea5p AFDD VIOX mang l\u1ea1i gi\u00e1 tr\u1ecb \u0111\u00e1ng k\u1ec3:<\/p>\n<ol>\n<li><strong>N\u00e2ng cao uy t\u00edn v\u1ec1 an to\u00e0n:<\/strong> Cung c\u1ea5p m\u1ee9c \u0111\u1ed9 b\u1ea3o v\u1ec7 ch\u1ed1ng ch\u00e1y cao nh\u1ea5t x\u00e2y d\u1ef1ng l\u00f2ng tin v\u1edbi kh\u00e1ch h\u00e0ng cu\u1ed1i.<\/li>\n<li><strong>Tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh:<\/strong> \u0110\u00e1p \u1ee9ng c\u00e1c s\u1eeda \u0111\u1ed5i m\u1edbi nh\u1ea5t c\u1ee7a quy \u0111\u1ecbnh v\u1ec1 h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n (nh\u01b0 \u1ea4n b\u1ea3n th\u1ee9 18 \u1edf V\u01b0\u01a1ng qu\u1ed1c Anh ho\u1eb7c c\u00e1c b\u1ea3n s\u1eeda \u0111\u1ed5i IEC t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng).<\/li>\n<li><strong>Gi\u1ea3m Tr\u00e1ch nhi\u1ec7m Ph\u00e1p l\u00fd:<\/strong> Gi\u1ea3m thi\u1ec3u r\u1ee7i ro h\u1ecfa ho\u1ea1n do \u0111i\u1ec7n b\u1ea3o v\u1ec7 c\u1ea3 ng\u01b0\u1eddi l\u1eafp \u0111\u1eb7t v\u00e0 ch\u1ee7 s\u1edf h\u1eefu t\u00f2a nh\u00e0.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng ch\u1ea9n \u0111o\u00e1n:<\/strong> AFDD VIOX th\u01b0\u1eddng c\u00f3 c\u00e1c ch\u1ec9 b\u00e1o LED gi\u00fap th\u1ee3 \u0111i\u1ec7n x\u00e1c \u0111\u1ecbnh <em>t\u1ea1i sao<\/em> s\u1ef1 c\u1ed1 x\u1ea3y ra (h\u1ed3 quang n\u1ed1i ti\u1ebfp so v\u1edbi h\u1ed3 quang song song so v\u1edbi qu\u00e1 \u00e1p), ti\u1ebft ki\u1ec7m th\u1eddi gian kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1. Xem <a href=\"https:\/\/test.viox.com\/vi\/circuit-breaker-buzzing-diagnostic-guide\/\">h\u01b0\u1edbng d\u1eabn ch\u1ea9n \u0111o\u00e1n ti\u1ebfng \u1ed3n c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch<\/a> \u0111\u1ec3 bi\u1ebft c\u00e1c c\u00e1ch kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 li\u00ean quan.<\/li>\n<\/ol>\n<h2>Nh\u1eefng \u0111i\u1ec3m ch\u00ednh<\/h2>\n<ul>\n<li><strong>Kho\u1ea3ng tr\u1ed1ng trong b\u1ea3o v\u1ec7:<\/strong> MCB v\u00e0 RCD ti\u00eau chu\u1ea9n kh\u00f4ng th\u1ec3 ph\u00e1t hi\u1ec7n l\u1ed7i h\u1ed3 quang n\u1ed1i ti\u1ebfp; c\u1ea7n c\u00f3 AFDD \u0111\u1ec3 l\u1ea5p \u0111\u1ea7y kho\u1ea3ng tr\u1ed1ng n\u00e0y.<\/li>\n<li><strong>Tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n:<\/strong> IEC 62606 l\u00e0 ti\u00eau chu\u1ea9n chi ph\u1ed1i, y\u00eau c\u1ea7u ng\u1eaft trong v\u00f2ng 120ms \u0111\u1ed1i v\u1edbi h\u1ed3 quang d\u00f2ng \u0111i\u1ec7n cao.<\/li>\n<li><strong>C\u00f4ng ngh\u1ec7:<\/strong> AFDD s\u1eed d\u1ee5ng b\u1ed9 vi x\u1eed l\u00fd \u0111\u1ec3 ph\u00e2n t\u00edch nhi\u1ec5u t\u1ea7n s\u1ed1 cao (~100kHz) v\u00e0 c\u00e1c b\u1ea5t th\u01b0\u1eddng v\u1ec1 d\u1ea1ng s\u00f3ng.<\/li>\n<li><strong>T\u00ednh linh ho\u1ea1t:<\/strong> Ch\u00fang b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u1ea3 h\u1ed3 quang n\u1ed1i ti\u1ebfp v\u00e0 song song, ng\u0103n ng\u1eeba h\u1ecfa ho\u1ea1n \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 &gt;6.000\u00b0C.<\/li>\n<li><strong>T\u00edch h\u1ee3p:<\/strong> Th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t bao g\u1ed3m s\u1eed d\u1ee5ng AFDD c\u00f9ng v\u1edbi <a href=\"https:\/\/test.viox.com\/vi\/rcbo\/\">RCBO<\/a> ho\u1eb7c d\u01b0\u1edbi d\u1ea1ng c\u00e1c thi\u1ebft b\u1ecb t\u00edch h\u1ee3p \u0111\u1ec3 b\u1ea3o v\u1ec7 to\u00e0n di\u1ec7n ch\u1ed1ng qu\u00e1 t\u1ea3i, ng\u1eafn m\u1ea1ch, r\u00f2 r\u1ec9 \u0111\u1ea5t v\u00e0 l\u1ed7i h\u1ed3 quang.<\/li>\n<\/ul>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<p><strong>H: T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng AFDD thay cho RCD kh\u00f4ng?<\/strong><br \/>\n\u0110: Kh\u00f4ng. AFDD ph\u00e1t hi\u1ec7n l\u1ed7i h\u1ed3 quang (nguy c\u01a1 h\u1ecfa ho\u1ea1n), trong khi RCD ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9 \u0111\u1ea5t (nguy c\u01a1 \u0111i\u1ec7n gi\u1eadt). Ch\u00fang ph\u1ee5c v\u1ee5 c\u00e1c m\u1ee5c \u0111\u00edch kh\u00e1c nhau. Tuy nhi\u00ean, b\u1ea1n c\u00f3 th\u1ec3 mua AFDD c\u00f3 t\u00edch h\u1ee3p b\u1ea3o v\u1ec7 RCD (th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 AFDD+RCBO). T\u00ecm hi\u1ec3u th\u00eam v\u1ec1 <a href=\"https:\/\/test.viox.com\/vi\/rcd-vs-mcb-understanding-the-key-differences-in-electrical-protection-devices\/\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa RCD v\u00e0 MCB t\u1ea1i \u0111\u00e2y<\/a>.<\/p>\n<p><strong>H: AFDD c\u00f3 g\u00e2y ra ng\u1eaft \u0111i\u1ec7n kh\u00f4ng c\u1ea7n thi\u1ebft kh\u00f4ng?<\/strong><br \/>\n\u0110: C\u00e1c th\u1ebf h\u1ec7 \u0111\u1ea7u ti\u00ean c\u00f3 m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1, nh\u01b0ng AFDD VIOX hi\u1ec7n \u0111\u1ea1i tu\u00e2n th\u1ee7 IEC 62606 s\u1eed d\u1ee5ng c\u00e1c thu\u1eadt to\u00e1n ti\u00ean ti\u1ebfn \u0111\u1ec3 ph\u00e2n bi\u1ec7t gi\u1eefa h\u1ed3 quang nguy hi\u1ec3m v\u00e0 ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng (nh\u01b0 m\u00e1y khoan \u0111i\u1ec7n ho\u1eb7c m\u00e1y h\u00fat b\u1ee5i).<\/p>\n<p><strong>H: AFDD c\u00f3 b\u1eaft bu\u1ed9c kh\u00f4ng?<\/strong><br \/>\n\u0110: \u0110i\u1ec1u \u0111\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c quy \u0111\u1ecbnh c\u1ee7a \u0111\u1ecba ph\u01b0\u01a1ng b\u1ea1n. \u1ede nhi\u1ec1u qu\u1ed1c gia tu\u00e2n theo IEC 60364-4-42, ch\u00fang l\u00e0 b\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi ch\u1ed7 \u1edf ng\u1ee7 ngh\u1ec9, \u0111\u1ecba \u0111i\u1ec3m c\u00f3 nguy c\u01a1 h\u1ecfa ho\u1ea1n v\u00e0 c\u00e1c t\u00f2a nh\u00e0 c\u00f3 h\u00e0ng h\u00f3a kh\u00f4ng th\u1ec3 thay th\u1ebf.<\/p>\n<p><strong>H: Tu\u1ed5i th\u1ecd c\u1ee7a AFDD l\u00e0 bao l\u00e2u?<\/strong><br \/>\n\u0110: Gi\u1ed1ng nh\u01b0 h\u1ea7u h\u1ebft c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 \u0111i\u1ec7n t\u1eed, ch\u00fang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho tu\u1ed5i th\u1ecd s\u1eed d\u1ee5ng l\u00e2u d\u00e0i. Tuy nhi\u00ean, n\u00ean ki\u1ec3m tra th\u01b0\u1eddng xuy\u00ean b\u1eb1ng n\u00fat ki\u1ec3m tra.<\/p>\n<p><strong>H: L\u00e0m c\u00e1ch n\u00e0o \u0111\u1ec3 ch\u1ecdn \u0111\u1ecbnh m\u1ee9c AFDD ph\u00f9 h\u1ee3p?<\/strong><br \/>\n\u0110: \u0110\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n (In) c\u1ee7a AFDD ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi d\u00f2ng \u0111i\u1ec7n thi\u1ebft k\u1ebf c\u1ee7a m\u1ea1ch, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 ch\u1ecdn MCB. Tham kh\u1ea3o <a href=\"https:\/\/test.viox.com\/vi\/mcb-buying-checklist-b2b-procurement-guide\/\">Danh s\u00e1ch ki\u1ec3m tra mua MCB<\/a> \u0111\u1ec3 bi\u1ebft c\u00e1c nguy\u00ean t\u1eafc \u0111\u1ecbnh c\u1ee1.<\/p>\n<p><strong>H: C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng AFDD ti\u00eau chu\u1ea9n tr\u00ean m\u1ea1ch DC (nh\u01b0 Solar PV ho\u1eb7c L\u01b0u tr\u1eef pin) kh\u00f4ng?<\/strong><\/p>\n<p data-path-to-node=\"7\"><b data-path-to-node=\"7\" data-index-in-node=\"0\">\u0110: Kh\u00f4ng, tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng.<\/b> AFDD ti\u00eau chu\u1ea9n tu\u00e2n th\u1ee7 <b data-path-to-node=\"7\" data-index-in-node=\"53\">IEC 62606<\/b> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u00e0nh ri\u00eang cho m\u1ea1ch AC (th\u01b0\u1eddng l\u00e0 230V, 50\/60Hz). Ch\u00fang kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean m\u1ea1ch DC v\u00ec hai l\u00fd do quan tr\u1ecdng:<\/p>\n<ol start=\"1\" data-path-to-node=\"8\">\n<li>\n<p data-path-to-node=\"8,0,0\"><b data-path-to-node=\"8,0,0\" data-index-in-node=\"0\">Kh\u00f4ng kh\u1edbp thu\u1eadt to\u00e1n ph\u00e1t hi\u1ec7n:<\/b> B\u1ed9 vi x\u1eed l\u00fd AFDD \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh \u0111\u1ec3 ph\u00e2n t\u00edch c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m d\u1ea1ng s\u00f3ng c\u1ee5 th\u1ec3 c\u1ee7a h\u1ed3 quang AC, th\u01b0\u1eddng d\u1ef1a v\u00e0o \u0111i\u1ec3m \u201cgiao nhau b\u1eb1ng kh\u00f4ng\u201d c\u1ee7a s\u00f3ng sin AC \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh l\u1ed7i. D\u00f2ng \u0111i\u1ec7n DC kh\u00f4ng c\u00f3 \u0111i\u1ec3m giao nhau b\u1eb1ng kh\u00f4ng, v\u00ec v\u1eady thi\u1ebft b\u1ecb s\u1ebd kh\u00f4ng ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c h\u1ed3 quang.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"8,1,0\"><b data-path-to-node=\"8,1,0\" data-index-in-node=\"0\">An to\u00e0n d\u1eadp t\u1eaft h\u1ed3 quang:<\/b> H\u1ed3 quang DC kh\u00f3 d\u1eadp t\u1eaft h\u01a1n nhi\u1ec1u so v\u1edbi h\u1ed3 quang AC v\u00ec d\u00f2ng \u0111i\u1ec7n kh\u00f4ng bao gi\u1edd gi\u1ea3m t\u1ef1 nhi\u00ean v\u1ec1 kh\u00f4ng. C\u01a1 ch\u1ebf chuy\u1ec3n m\u1ea1ch \u0111\u1ecbnh m\u1ee9c AC c\u00f3 th\u1ec3 kh\u00f4ng ng\u1eaft \u0111\u01b0\u1ee3c h\u1ed3 quang DC, d\u1eabn \u0111\u1ebfn h\u01b0 h\u1ecfng nghi\u00eam tr\u1ecdng ho\u1eb7c h\u1ecfa ho\u1ea1n b\u00ean trong ch\u00ednh b\u1ed9 ng\u1eaft m\u1ea1ch.<\/p>\n<\/li>\n<\/ol>\n<p data-path-to-node=\"9\">\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng DC (ch\u1eb3ng h\u1ea1n nh\u01b0 Solar PV), b\u1ea1n ph\u1ea3i s\u1eed d\u1ee5ng <b data-path-to-node=\"9\" data-index-in-node=\"62\">B\u1ea3o v\u1ec7 l\u1ed7i h\u1ed3 quang DC<\/b> (th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o bi\u1ebfn t\u1ea7n ho\u1eb7c b\u1ed9 k\u1ebft h\u1ee3p DC chuy\u00ean d\u1ee5ng). \u0110\u1ec3 bi\u1ebft th\u00eam v\u1ec1 b\u1ea3o v\u1ec7 DC, h\u00e3y xem h\u01b0\u1edbng d\u1eabn c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <a class=\"ng-star-inserted\" href=\"https:\/\/test.viox.com\/vi\/dc-circuit-breaker-vs-fuse\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwjM_O_ulp2SAxUAAAAAHQAAAAAQyAE\">B\u1ed9 ng\u1eaft m\u1ea1ch DC so v\u1edbi C\u1ea7u ch\u00ec<\/a>.<\/p>\n<\/div>\n<div class=\"simg-pop-btn\" style=\"top: 240px; left: 14.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 240px; left: 14.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 240px; left: 14.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 240px; left: 14.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 2245.66px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 2245.66px; left: 14px; display: none;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Electrical fires remain one of the most significant risks in residential and commercial buildings, with a substantial percentage attributed to arc faults. While standard circuit protection devices like Miniature Circuit Breakers (MCBs) and Residual Current Devices (RCDs) are essential, they have a blind spot: they cannot detect the unique signature of a dangerous electrical arc. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21399,"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-21397","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\/21397","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=21397"}],"version-history":[{"count":4,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/21397\/revisions"}],"predecessor-version":[{"id":21402,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/posts\/21397\/revisions\/21402"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media\/21399"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/media?parent=21397"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/categories?post=21397"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/vi\/wp-json\/wp\/v2\/tags?post=21397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}