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Trong th\u1ebf gi\u1edbi t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p<\/strong>, n\u01a1i h\u00e0ng lo\u1ea1t thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ho\u1ea1t \u0111\u1ed9ng song song, t\u01b0\u01a1ng th\u00edch \u0111i\u1ec7n t\u1eeb (EMC)<\/strong> kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t t\u00ednh n\u0103ng \u2013 m\u00e0 l\u00e0 y\u00eau c\u1ea7u b\u1eaft bu\u1ed9c<\/strong> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c<\/strong> c\u1ee7a to\u00e0n h\u1ec7 th\u1ed1ng.<\/p>\n EMC (Electro Magnetic Compatibility)<\/strong> \u2013 T\u01b0\u01a1ng th\u00edch \u0111i\u1ec7n t\u1eeb<\/em>: EMI (Electro Magnetic Interference)<\/strong> \u2013 Nhi\u1ec5u \u0111i\u1ec7n t\u1eeb<\/em>: N\u00f3i c\u00e1ch kh\u00e1c, EMC<\/strong> l\u00e0 \u201ckh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u\u201d, c\u00f2n EMI<\/strong> l\u00e0 \u201cngu\u1ed3n g\u00e2y nhi\u1ec5u\u201d.<\/p>\n N\u1ebfu thi\u1ebft b\u1ecb kh\u00f4ng tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n EMC, h\u1ec7 th\u1ed1ng s\u1ebd d\u1ec5 g\u1eb7p c\u00e1c s\u1ef1 c\u1ed1:<\/p>\n T\u00edn hi\u1ec7u \u0111o l\u01b0\u1eddng kh\u00f4ng \u1ed5n \u0111\u1ecbnh<\/p>\n<\/li>\n Xu\u1ea5t hi\u1ec7n c\u00e1c xung \u0111i\u1ec7n ho\u1eb7c t\u00edn hi\u1ec7u l\u1ea1<\/p>\n<\/li>\n D\u1eef li\u1ec7u b\u1ecb sai l\u1ec7ch m\u00e0 kh\u00f4ng r\u00f5 nguy\u00ean nh\u00e2n<\/p>\n<\/li>\n<\/ul>\n C\u00e1c l\u1ed7i n\u00e0y g\u00e2y gi\u00e1n \u0111o\u1ea1n s\u1ea3n xu\u1ea5t<\/strong>, \u1ea3nh h\u01b0\u1edfng \u0111\u1ed9 ch\u00ednh x\u00e1c<\/strong>, v\u00e0 t\u0103ng nguy c\u01a1 h\u1ecfng h\u00f3c thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n<\/strong>.<\/p>\n D\u1ea5u CE (Conformit\u00e9 Europ\u00e9enne)<\/strong> l\u00e0 ch\u1ee9ng nh\u1eadn b\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi nhi\u1ec1u nh\u00f3m s\u1ea3n ph\u1ea9m khi l\u01b0u h\u00e0nh t\u1ea1i ch\u00e2u \u00c2u v\u00e0 c\u00e1c th\u1ecb tr\u01b0\u1eddng qu\u1ed1c t\u1ebf.<\/p>\n V\u1edbi thi\u1ebft b\u1ecb \u0111i\u1ec7n v\u00e0 \u0111i\u1ec7n t\u1eed<\/strong>, ch\u1ec9 th\u1ecb EMC \u2013 Directive 2014\/30\/EU<\/strong> l\u00e0 quy \u0111\u1ecbnh quan tr\u1ecdng nh\u1eb1m \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb:<\/p>\n Kh\u00f4ng ph\u00e1t x\u1ea1 nhi\u1ec5u v\u01b0\u1ee3t m\u1ee9c cho ph\u00e9p<\/p>\n<\/li>\n C\u00f3 kh\u1ea3 n\u0103ng mi\u1ec5n nhi\u1ec5m tr\u01b0\u1edbc nhi\u1ec5u \u0111i\u1ec7n t\u1eeb b\u00ean ngo\u00e0i<\/p>\n<\/li>\n<\/ul>\n C\u00e1c s\u1ea3n ph\u1ea9m \u0111\u1ea1t d\u1ea5u CE v\u1ec1 EMC kh\u00f4ng ch\u1ec9 an to\u00e0n m\u00e0 c\u00f2n \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u0111i\u1ec7n t\u1eeb t\u1ed1i thi\u1ec3u<\/strong> trong m\u1ecdi m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p.<\/p>\n Ngo\u00e0i EMC, m\u1ed9t thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 \u0111\u1ed3ng th\u1eddi tu\u00e2n th\u1ee7 c\u00e1c ch\u1ec9 th\u1ecb kh\u00e1c nh\u01b0:<\/p>\n ATEX (2014\/34\/EU)<\/strong> \u2013 cho m\u00f4i tr\u01b0\u1eddng d\u1ec5 ch\u00e1y n\u1ed5<\/p>\n<\/li>\n LVD (2014\/35\/EU)<\/strong> \u2013 thi\u1ebft b\u1ecb \u0111i\u1ec7n \u00e1p th\u1ea5p<\/p>\n<\/li>\n RoHS (2011\/65\/EU)<\/strong> \u2013 h\u1ea1n ch\u1ebf h\u00f3a ch\u1ea5t \u0111\u1ed9c h\u1ea1i<\/p>\n<\/li>\n MID (2014\/32\/EU)<\/strong> \u2013 thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng<\/p>\n<\/li>\n Pressure (2014\/68\/EU)<\/strong> \u2013 thi\u1ebft b\u1ecb \u00e1p l\u1ef1c<\/p>\n<\/li>\n<\/ul>\n Nhi\u1ec5u \u0111i\u1ec7n t\u1eeb xu\u1ea5t ph\u00e1t t\u1eeb c\u1ea3 ngu\u1ed3n t\u1ef1 nhi\u00ean<\/strong> v\u00e0 ngu\u1ed3n nh\u00e2n t\u1ea1o<\/strong>, v\u00ed d\u1ee5:<\/p>\n S\u00e9t \u0111\u00e1nh, \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n cao th\u1ebf, tr\u1ea1m ph\u00e1t s\u00f3ng di \u0111\u1ed9ng<\/p>\n<\/li>\n \u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n, m\u00e1y h\u00e0n, m\u00e1y t\u00ednh, \u0111i\u1ec7n tho\u1ea1i, thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p<\/p>\n<\/li>\n<\/ul>\n C\u00e1c c\u01a1 ch\u1ebf truy\u1ec1n nhi\u1ec5u ch\u00ednh:<\/p>\n D\u1eabn truy\u1ec1n (Conduction):<\/strong> Nhi\u1ec5u \u0111i qua d\u00e2y d\u1eabn ho\u1eb7c c\u00e1p ngu\u1ed3n.<\/p>\n<\/li>\n B\u1ee9c x\u1ea1 (Radiation):<\/strong> Nhi\u1ec5u lan truy\u1ec1n trong kh\u00f4ng kh\u00ed d\u01b0\u1edbi d\u1ea1ng s\u00f3ng \u0111i\u1ec7n t\u1eeb.<\/p>\n<\/li>\n Gh\u00e9p t\u1eeb (Magnetic Coupling):<\/strong> C\u1ea3m \u1ee9ng d\u00f2ng \u0111i\u1ec7n kh\u00f4ng mong mu\u1ed1n gi\u1eefa c\u00e1c d\u00e2y d\u1eabn g\u1ea7n nhau.<\/p>\n<\/li>\n Gh\u00e9p \u0111i\u1ec7n dung (Capacitive Coupling):<\/strong> Truy\u1ec1n nhi\u1ec5u qua \u0111i\u1ec7n tr\u01b0\u1eddng gi\u1eefa c\u00e1c v\u1eadt d\u1eabn g\u1ea7n nhau.<\/p>\n<\/li>\n<\/ul>\n Trong c\u00e1c ng\u00e0nh h\u00e0ng h\u1ea3i (Marine)<\/strong> v\u00e0 quy tr\u00ecnh c\u00f4ng nghi\u1ec7p (Process Industry)<\/strong>, ti\u00eau chu\u1ea9n EMC c\u01a1 b\u1ea3n l\u00e0 ch\u01b0a \u0111\u1ee7. C\u00e1c thi\u1ebft b\u1ecb ph\u1ea3i \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau ch\u00ed hi\u1ec7u su\u1ea5t (Performance Criteria):<\/strong><\/p>\n Criterion A:<\/strong> Thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng trong su\u1ed1t qu\u00e1 tr\u00ecnh th\u1eed nhi\u1ec5u.<\/p>\n<\/li>\n Criterion B:<\/strong> C\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng t\u1ea1m th\u1eddi, nh\u01b0ng t\u1ef1 ph\u1ee5c h\u1ed3i m\u00e0 kh\u00f4ng c\u1ea7n can thi\u1ec7p.<\/p>\n<\/li>\n<\/ul>\n C\u00e1c thi\u1ebft b\u1ecb PR electronics<\/strong> \u0111\u01b0\u1ee3c ki\u1ec3m \u0111\u1ecbnh theo ti\u00eau chu\u1ea9n EN 61326-1<\/strong>, NAMUR NE21<\/strong>, v\u00e0 DNV Marine<\/strong>.<\/p>\n Ti\u00eau ch\u00ed hi\u1ec7u su\u1ea5t (Performance Criterion) v\u00e0 \u0111\u00e1p \u1ee9ng ti\u00eau ch\u00ed cao c\u1ee7a PR electron<\/strong>ics<\/strong><\/p>\n \u0110\u1ec3 \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng mi\u1ec5n nhi\u1ec5m (EMS), c\u00e1c b\u00e0i ki\u1ec3m tra \u0111\u01b0\u1ee3c x\u1ebfp lo\u1ea1i theo ti\u00eau ch\u00ed:<\/p>\n B\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt chi ti\u1ebft sau \u0111\u00e2y so s\u00e1nh ba m\u1ee9c ti\u00eau chu\u1ea9n:<\/p>\n C\u00e1c thi\u1ebft b\u1ecb nh\u01b0 PR electronics<\/strong> ph\u1ea3i v\u01b0\u1ee3t qua h\u00e0ng lo\u1ea1t th\u1eed nghi\u1ec7m kh\u1eafc nghi\u1ec7t nh\u01b0:<\/p>\n M\u00f4 ph\u1ecfng s\u1ef1 ph\u00f3ng \u0111i\u1ec7n khi con ng\u01b0\u1eddi ho\u1eb7c v\u1eadt li\u1ec7u nh\u1ef1a ch\u1ea1m v\u00e0o thi\u1ebft b\u1ecb, m\u1ed9t v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn khi t\u1ee7 \u0111i\u1ec7n ch\u1ee9a nhi\u1ec1u h\u1ed9p nh\u1ef1a v\u00e0 thi\u1ebft b\u1ecb hi\u1ec7n \u0111\u1ea1i l\u00e0m t\u1eeb nh\u1ef1a<\/p>\n M\u00f4 ph\u1ecfng nhi\u1ec5u n\u0103ng l\u01b0\u1ee3ng cao sinh ra t\u1eeb vi\u1ec7c \u0111\u00f3ng\/c\u1eaft t\u1ea3i c\u1ea3m \u1ee9ng (v\u00ed d\u1ee5: motor, r\u01a1-le). Thi\u1ebft b\u1ecb ph\u1ea3i ch\u1ecbu \u0111\u1ef1ng \u0111\u01b0\u1ee3c \u0111i\u1ec7n \u00e1p xung 1kV ho\u1eb7c 2kV<\/p>\n M\u00f4 ph\u1ecfng nhi\u1ec5u n\u0103ng l\u01b0\u1ee3ng r\u1ea5t cao g\u00e2y ra b\u1edfi s\u00e9t \u0111\u00e1nh ho\u1eb7c nhi\u1ec5u tr\u00ean l\u01b0\u1edbi ph\u00e2n ph\u1ed1i \u0111i\u1ec7n.<\/p>\n Ki\u1ec3m tra kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh khi c\u00f3 s\u00f3ng v\u00f4 tuy\u1ebfn (t\u1eeb b\u1ed9 \u0111\u00e0m, \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng) trong m\u00f4i tr\u01b0\u1eddng. V\u00ed d\u1ee5, nhi\u1ec5u RF ch\u1ec9 x\u1ea3y ra khi n\u00e0o ch\u00fang ta n\u00f3i chuy\u1ec7n qua b\u1ed9 \u0111\u00e0m.<\/p>\n M\u1eb7c d\u00f9 nhi\u1ec5u 50 Hz t\u1eeb m\u00e1y bi\u1ebfn \u00e1p v\u00e0 d\u00e2y c\u00e1p kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a ch\u1ec9 th\u1ecb EMC, PR electronics<\/strong> v\u1eabn thi\u1ebft l\u1eadp ti\u00eau chu\u1ea9n ki\u1ec3m tra ri\u00eang \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao.<\/p>\n Khi b\u1ecb t\u1ea5n c\u00f4ng b\u1eb1ng nhi\u1ec5u s\u00f3ng v\u00f4 tuy\u1ebfn (RF noise) \u1edf c\u01b0\u1eddng \u0111\u1ed9 cao 10 V\/m (t\u1eeb 80 MHz \u0111\u1ebfn 1000 MHz):<\/p>\n \u0110\u01b0\u1eddng t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c ghi l\u1ea1i g\u1ea7n nh\u01b0 ph\u1eb3ng<\/strong> v\u00e0 \u1ed5n \u0111\u1ecbnh<\/strong>.<\/p>\n Thi\u1ebft b\u1ecb PR electronics<\/strong>\u00a0 \u0111\u1ea1t Ti\u00eau ch\u00ed A<\/strong> (Criterion A), ch\u1ee9ng t\u1ecf kh\u1ea3 n\u0103ng mi\u1ec5n nhi\u1ec5m tuy\u1ec7t \u0111\u1ed1i<\/strong>; d\u1eef li\u1ec7u \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c duy tr\u00ec ch\u00ednh x\u00e1c v\u00e0 kh\u00f4ng b\u1ecb sai l\u1ec7ch ngay c\u1ea3 khi b\u1ecb nhi\u1ec5u RF m\u1ea1nh t\u1ea5n c\u00f4ng.<\/p>\n Sau khi v\u01b0\u1ee3t qua c\u00e1c b\u00e0i ki\u1ec3m tra, nh\u00e0 s\u1ea3n xu\u1ea5t ph\u1ea3i l\u1eadp t\u00e0i li\u1ec7u Tuy\u00ean b\u1ed1 v\u1ec1 s\u1ef1 ph\u00f9 h\u1ee3p (Declaration of Conformity)<\/strong> \u0111\u1ec3 ch\u00ednh th\u1ee9c x\u00e1c nh\u1eadn vi\u1ec7c tu\u00e2n th\u1ee7 c\u00e1c ch\u1ec9 th\u1ecb, bao g\u1ed3m c\u1ea3 Ch\u1ec9 th\u1ecb EMC.<\/p>\n Trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i, EMC v\u00e0 EMI<\/strong> kh\u00f4ng c\u00f2n l\u00e0 l\u1ef1a ch\u1ecdn m\u00e0 l\u00e0 y\u1ebfu t\u1ed1 b\u1eaft bu\u1ed9c<\/strong> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n, \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 tu\u1ed5i th\u1ecd thi\u1ebft b\u1ecb.<\/p>\n C\u00e1c s\u1ea3n ph\u1ea9m \u0111\u1ea1t chu\u1ea9n EMC qu\u1ed1c t\u1ebf<\/strong>, nh\u01b0 PR electronics<\/strong>, gi\u00fap doanh nghi\u1ec7p: VNTECH GROUP<\/strong> \u2013 \u0111\u01a1n v\u1ecb cung c\u1ea5p thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a<\/strong> h\u00e0ng \u0111\u1ea7u Vi\u1ec7t Nam, cam k\u1ebft mang \u0111\u1ebfn gi\u1ea3i ph\u00e1p \u0111\u1ea1t chu\u1ea9n EMC & CE<\/strong>, \u0111\u00e1p \u1ee9ng m\u1ecdi ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p qu\u1ed1c t\u1ebf.<\/p>\n PR electronics<\/strong>\u00a0l\u00e0 th\u01b0\u01a1ng hi\u1ec7u h\u00e0ng \u0111\u1ea7u th\u1ebf gi\u1edbi trong l\u0129nh v\u1ef1c thi\u1ebft b\u1ecb x\u1eed l\u00fd t\u00edn hi\u1ec7u v\u00e0 \u0111o l\u01b0\u1eddng c\u00f4ng nghi\u1ec7p. V\u1edbi h\u01a1n 40 n\u0103m kinh nghi\u1ec7m v\u00e0 h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i t\u1ea1i h\u01a1n 40 qu\u1ed1c gia, PR cam k\u1ebft mang \u0111\u1ebfn gi\u1ea3i ph\u00e1p \u0111o l\u01b0\u1eddng ti\u00ean ti\u1ebfn \u2013 ch\u00ednh x\u00e1c \u2013 an to\u00e0n \u2013 \u0111\u1ea1t ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf.<\/p>\n Li\u00ean h\u1ec7 \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n v\u00e0 b\u00e1o gi\u00e1 PR electronics <\/strong><\/p>\n Ch\u00fang t\u00f4i l\u00e0\u00a0\u0111\u1ea1i di\u1ec7n ch\u00ednh th\u1ee9c c\u1ee7a PR electronics t\u1ea1i Vi\u1ec7t Nam<\/strong>, cung c\u1ea5p gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt, h\u1ed7 tr\u1ee3 c\u00e0i \u0111\u1eb7t v\u00e0 b\u1ea3o h\u00e0nh ch\u00ednh h\u00e3ng.<\/p>\n \u0110\u1ec3 c\u00f3 th\u00f4ng tin chi ti\u1ebft h\u01a1n, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt c\u1ee7a s\u1ea3n ph\u1ea9m tr\u00ean trang web c\u1ee7a PR electronics <\/strong> ho\u1eb7c li\u00ean h\u1ec7 v\u1edbi nh\u00e0 ph\u00e2n ph\u1ed1i ch\u00ednh th\u1ee9c.<\/p>\n Vntech Group JSC<\/strong><\/a> l\u00e0 \u0111\u1ea1i di\u1ec7n ph\u00e2n ph\u1ed1i ch\u00ednh th\u1ee9c PR electronics<\/strong>\u00a0t\u1eeb \u0110an M\u1ea1ch v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m kh\u00e1c t\u1eeb thi\u1ebft b\u1ecb \u0111o, t\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 c\u00f4ng nghi\u1ec7p xu\u1ea5t x\u1ee9 100% t\u1eeb Ch\u00e2u \u00c2u.<\/p>\n T\u01b0 v\u1ea5n v\u00e0 \u0111\u01b0a gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u \u0111\u1ebfn Qu\u00fd kh\u00e1ch h\u00e0ng. Li\u00ean h\u1ec7 ngay v\u1edbi ch\u00fang t\u00f4i \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n v\u00e0 h\u1ed7 tr\u1ee3 t\u1ed1t nh\u1ea5t.<\/p>\n V\u1edbi kim ch\u1ec9 nam l\u00e0 lu\u00f4n mang l\u1ea1i nh\u1eefng s\u1ea3n ph\u1ea9m t\u1ed1t nh\u1ea5t \u0111\u1ebfn v\u1edbi kh\u00e1ch h\u00e0ng, Vntech Group JSC<\/strong> \u0111\u00e3 v\u00e0 \u0111ang l\u1eafng nghe v\u00e0 th\u1ea5u hi\u1ec3u t\u00e2m l\u00fd c\u0169ng nh\u01b0 nhu c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng . H\u1ed7 tr\u1ee3 l\u1eafp \u0111\u1eb7t v\u00e0 \u0111\u01b0a ra gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u nh\u1ea5t l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng khi h\u1ee3p t\u00e1c v\u1edbi VNTECH c\u1ee7a ch\u00fang t\u00f4i.<\/p>\n Hi\u1ec7n t\u1ea1i s\u1ea3n ph\u1ea9m PR Electronics \u0111\u01b0\u1ee3c Vntech Group JSC<\/strong> l\u00e0 \u0111\u01a1n v\u1ecb \u0111\u1ed9c quy\u1ec1n \u0111\u01b0\u1ee3c ph\u00e2n ph\u1ed1i s\u1ea3n ph\u1ea9m \u1edf Vi\u1ec7t Nam. H\u00e3y li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 v\u00e0 c\u00f3 gi\u00e1 th\u00e0nh t\u1ed1t nh\u1ea5t. Vntech Group JSC<\/strong> lu\u00f4n t\u00e2m ni\u1ec7m s\u1ef1 h\u00e0i l\u00f2ng c\u1ee7a kh\u00e1ch h\u00e0ng l\u00e0 m\u1ee5c ti\u00eau quan tr\u1ecdng. Ch\u00fang t\u00f4i cam k\u1ebft \u0111em l\u1ea1i nh\u1eefng s\u1ea3n ph\u1ea9m v\u00e0 d\u1ecbch v\u1ee5 v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t nh\u1ea5t cho Qu\u00fd kh\u00e1ch h\u00e0ng.<\/p>\n Xem th\u00eam:<\/p>\n B\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u\u00a0<\/a><\/p>\n S\u1ea3n ph\u1ea9m m\u1edbi PR Electronics<\/a><\/p>\n 10 c\u00e2u h\u1ecfi v\u1ec1 m\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb PR4511<\/a><\/p>\n Kh\u00e1c bi\u1ec7t gi\u1eefa b\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u PR3185 v\u00e0 PR3186 l\u00e0 g\u00ec?<\/a><\/p>\n B\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u v\u00e0 c\u00e1c lo\u1ea1i t\u00edn hi\u1ec7u ph\u1ed5 bi\u1ebfn<\/a><\/p>\n 10 c\u00e2u h\u1ecfi \u0111\u00e1p v\u1ec1 m\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb t\u00edn hi\u1ec7u PR 4511<\/a><\/p>\n B\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111a n\u0103ng PR 4179B: Gi\u1ea3i ph\u00e1p linh ho\u1ea1t cho gi\u00e1m s\u00e1t v\u00e0 b\u1ea3o v\u1ec7 quy tr\u00ecnh<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" Trong th\u1ebf gi\u1edbi t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p, n\u01a1i h\u00e0ng lo\u1ea1t thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ho\u1ea1t \u0111\u1ed9ng song song, t\u01b0\u01a1ng th\u00edch \u0111i\u1ec7n t\u1eeb (EMC) kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t t\u00ednh n\u0103ng \u2013 m\u00e0 l\u00e0 y\u00eau c\u1ea7u b\u1eaft bu\u1ed9c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a to\u00e0n h\u1ec7 th\u1ed1ng. Ph\u00e2n bi\u1ec7t EMC v\u00e0 … \u0110\u1ecdc ti\u1ebfp<\/a><\/p>\n","protected":false},"author":9,"featured_media":19205,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[229],"tags":[],"class_list":["post-19204","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"lang":"vi","translations":{"vi":19204},"pll_sync_post":[],"_links":{"self":[{"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=\/wp\/v2\/posts\/19204"}],"collection":[{"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19204"}],"version-history":[{"count":1,"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=\/wp\/v2\/posts\/19204\/revisions"}],"predecessor-version":[{"id":19206,"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=\/wp\/v2\/posts\/19204\/revisions\/19206"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=\/wp\/v2\/media\/19205"}],"wp:attachment":[{"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vn-tech.com.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Ph\u00e2n bi\u1ec7t EMC v\u00e0 EMI<\/strong>
![\"\"](\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2025\/11\/EMC-va-EMI-\u2013-Tieu-Chuan-Song-Con-Cua-Thiet-Bi-Cong-Nghiep-1-800x387.jpg\")
<\/h2>\n\n
L\u00e0 kh\u1ea3 n\u0103ng m\u1ed9t thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh trong m\u00f4i tr\u01b0\u1eddng \u0111i\u1ec7n t\u1eeb<\/strong>, m\u00e0 kh\u00f4ng g\u00e2y nhi\u1ec5u cho thi\u1ebft b\u1ecb kh\u00e1c<\/strong> v\u00e0 kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec5u xung quanh<\/strong>.<\/p>\n<\/li>\n
L\u00e0 c\u00e1c t\u00edn hi\u1ec7u nhi\u1ec5u \u0111\u01b0\u1ee3c ph\u00e1t x\u1ea1 t\u1eeb thi\u1ebft b\u1ecb<\/strong>, c\u00f3 th\u1ec3 l\u00e0 nhi\u1ec5u d\u1eabn (Conducted)<\/strong>, nhi\u1ec5u b\u1ee9c x\u1ea1 (Radiated)<\/strong> ho\u1eb7c nhi\u1ec5u gh\u00e9p c\u1eb7p (Coupled)<\/strong>.<\/p>\n<\/li>\n<\/ul>\nKhi thi\u1ebft b\u1ecb kh\u00f4ng \u0111\u1ea1t chu\u1ea9n EMC<\/strong><\/h2>\n
\n
![\"\"](\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2025\/11\/EMC-va-EMI-\u2013-Tieu-Chuan-Song-Con-Cua-Thiet-Bi-Cong-Nghiep-695x400.png\")
<\/p>\nD\u1ea5u CE v\u00e0 ch\u1ec9 th\u1ecb EMC trong thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed<\/strong><\/h2>\n
![\"\"](\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2025\/11\/EMC-va-EMI-\u2013-Tieu-Chuan-Song-Con-Cua-Thiet-Bi-Cong-Nghiep-2.png\")
<\/p>\n\n
\n
Ngu\u1ed3n g\u1ed1c v\u00e0 c\u01a1 ch\u1ebf g\u00e2y nhi\u1ec5u EMI<\/strong><\/h2>\n
\n
![\"\"](\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2025\/11\/EMC-va-EMI-\u2013-Tieu-Chuan-Song-Con-Cua-Thiet-Bi-Cong-Nghiep3-775x400.png\")
<\/p>\n\n
Ti\u00eau chu\u1ea9n EMC n\u00e2ng cao \u2013 DNV v\u00e0 NAMUR<\/strong><\/h2>\n
Do \u0111\u00f3, c\u00e1c t\u1ed5 ch\u1ee9c nh\u01b0 DNV<\/strong> (Det Norske Veritas) v\u00e0 NAMUR (NE21)<\/strong> \u0111\u00e3 \u0111\u01b0a ra c\u00e1c y\u00eau c\u1ea7u kh\u1eaft khe h\u01a1n<\/strong> v\u1ec1 kh\u1ea3 n\u0103ng mi\u1ec5n nhi\u1ec5m v\u00e0 hi\u1ec7u su\u1ea5t \u0111o l\u01b0\u1eddng.<\/p>\n\n
![\"\"](\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2025\/11\/EMC-va-EMI-\u2013-Tieu-Chuan-Song-Con-Cua-Thiet-Bi-Cong-Nghiep4-800x364.png\")
<\/p>\nPR electronics \u2013 V\u01b0\u1ee3t chu\u1ea9n EMC c\u00f4ng nghi\u1ec7p<\/strong><\/h2>\n
\n
![\"\"](\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2025\/11\/EMC-va-EMI-\u2013-Tieu-Chuan-Song-Con-Cua-Thiet-Bi-Cong-Nghiep5-800x371.png\")
<\/p>\nT<\/strong>i\u00eau ch\u00ed cao c\u1ee7a PR electron<\/strong>ics<\/strong><\/h3>\n
\n
![\"\"](\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2025\/11\/EMC-va-EMI-\u2013-Tieu-Chuan-Song-Con-Cua-Thiet-Bi-Cong-Nghiep6-755x400.png\")
<\/p>\n\u0110\u1ec3 \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng v\u01b0\u1ee3t tr\u1ed9i thi\u1ebft b\u1ecb <\/strong>PR<\/strong> electronics<\/strong> tr\u1ea3i qua c\u00e1c b\u00e0i ki\u1ec3m tra.<\/strong><\/h4>\n
Ki\u1ec3m tra ESD (Electrostatic Discharge – Ph\u00f3ng \u0111i\u1ec7n t\u0129nh):<\/strong><\/h4>\n
![\"\"](\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2025\/11\/EMC-va-EMI-\u2013-Tieu-Chuan-Song-Con-Cua-Thiet-Bi-Cong-Nghiep-6-794x400.jpg\")
<\/p>\nKi\u1ec3m tra Burst (Xung nhanh tho\u00e1ng qua):<\/strong><\/h4>\n
![\"\"](\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2025\/11\/EMC-va-EMI-\u2013-Tieu-Chuan-Song-Con-Cua-Thiet-Bi-Cong-Nghiep7-797x400.png\")
<\/p>\nKi\u1ec3m tra Surge (S\u00f3ng s\u00e9t\/qu\u00e1 \u0111\u1ed9):<\/strong><\/h4>\n
![\"\"](\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2025\/11\/EMC-va-EMI-\u2013-Tieu-Chuan-Song-Con-Cua-Thiet-Bi-Cong-Nghiep8-788x400.png\")
Ki\u1ec3m tra RF (Radio Frequency Noise):<\/strong><\/h4>\n![\"\"](\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2025\/11\/EMC-va-EMI-\u2013-Tieu-Chuan-Song-Con-Cua-Thiet-Bi-Cong-Nghiep9-746x400.png\")
<\/p>\nKi\u1ec3m tra nhi\u1ec5u 50 Hz (Hum- nhi\u1ec5u ti\u1ebfng \u1ed3n):<\/strong><\/h4>\n
![\"\"](\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2025\/11\/EMC-va-EMI-\u2013-Tieu-Chuan-Song-Con-Cua-Thiet-Bi-Cong-Nghiep10-772x400.png\")
<\/p>\nKh\u1ea3 n\u0103ng v\u01b0\u1ee3t tr\u1ed9i c\u1ee7a PR electronics<\/strong><\/h3>\n
![\"\"](\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2025\/11\/EMC-va-EMI-\u2013-Tieu-Chuan-Song-Con-Cua-Thiet-Bi-Cong-Nghiep11-679x400.png\")
<\/p>\nT\u00e0i li\u1ec7u Ch\u1ee9ng nh\u1eadn<\/strong><\/h4>\n
![\"\"](\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2025\/11\/EMC-va-EMI-\u2013-Tieu-Chuan-Song-Con-Cua-Thiet-Bi-Cong-Nghiep12-617x400.png\")
<\/p>\n![\"\"](\"https:\/\/congnghiephoa.com.vn\/wp-content\/uploads\/2025\/11\/EMC-va-EMI-\u2013-Tieu-Chuan-Song-Con-Cua-Thiet-Bi-Cong-Nghiep13-716x400.png\")
<\/p>\n
\u2705 Duy tr\u00ec t\u00edn hi\u1ec7u \u0111o l\u01b0\u1eddng \u1ed5n \u0111\u1ecbnh
\u2705 Gi\u1ea3m thi\u1ec3u r\u1ee7i ro h\u1ec7 th\u1ed1ng
\u2705 \u0110\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec5u cao<\/p>\nK\u1ebft lu\u1eadn<\/strong><\/span><\/h2>\n
Li\u00ean h\u1ec7<\/strong><\/span><\/h2>\n
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