{"id":4271,"date":"2026-09-30T00:00:00","date_gmt":"2026-09-30T00:00:00","guid":{"rendered":"https:\/\/chac-electric.com\/?p=4271"},"modified":"2026-09-30T07:39:15","modified_gmt":"2026-09-30T07:39:15","slug":"top-10-nha-san-xuat-dong-co-tiep-xuc-dc-huong-dan-cho-nguoi-mua","status":"publish","type":"post","link":"https:\/\/chac-electric.com\/vi\/blog\/top-10-dc-contactor-manufacturers-a-buyers-guide\/","title":{"rendered":"Top 10 DC contactor manufacturers: A Buyer\u2019s Guide"},"content":{"rendered":"

Khi m\u1ed9t d\u1ef1 \u00e1n g\u1eb7p v\u1ea5n \u0111\u1ec1 l\u1ef1a ch\u1ecdn, s\u1ef1 th\u1ea5t b\u1ea1i r\u00f5 r\u00e0ng th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n tr\u01b0\u1edbc khi nguy\u00ean nh\u00e2n th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c hi\u1ec3u r\u00f5. Daniel, m\u1ed9t k\u1ef9 s\u01b0 ph\u1ee5 tr\u00e1ch s\u1ea1c pin cho c\u00e1c xe \u00f4 t\u00f4 t\u1ea1i Oslo, \u0111\u00e3 ch\u1ecdn l\u1ecdc c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t b\u1ed9 s\u1ea1c pin d\u1ef1a tr\u00ean ch\u1ec9 s\u1ed1 \u0111i\u1ec7n \u00e1p cu\u1ed9n d\u00e2y. Vi\u1ec7c th\u00e1o r\u1eddi b\u1ed9 s\u1ea1c cho th\u1ea5y c\u00e1c d\u1eef li\u1ec7u v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ed1ng n\u00f3ng kh\u00e1c nhau v\u00e0 kh\u00f4ng c\u00f3 th\u1eed nghi\u1ec7m r\u00f5 r\u00e0ng v\u1ec1 tu\u1ed5i th\u1ecd. Nh\u00f3m \u0111\u00e3 thay \u0111\u1ed5i y\u00eau c\u1ea7u thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ec9 bao g\u1ed3m th\u00f4ng s\u1ed1 v\u1ec1 \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o, d\u00f2ng \u0111i\u1ec7n, lo\u1ea1i c\u00f4ng d\u1ee5ng, th\u1eddi gian s\u1ea1c tr\u01b0\u1edbc v\u00e0 c\u00e1c ch\u1ee9ng t\u1eeb.<\/p>\n

T\u00f3m t\u1eaft:<\/strong> M\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t c\u1ea7u n\u1ed1i DC n\u00ean \u0111\u01b0\u1ee3c so s\u00e1nh v\u1ec1 ph\u1ea1m vi c\u00f4ng su\u1ea5t, \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n khi chuy\u1ec3n m\u1ea1ch, v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac, kh\u1ea3 n\u0103ng ti\u1ebft ki\u1ec7m cu\u1ed9n d\u00e2y, kh\u1ea3 n\u0103ng ch\u1ed1ng h\u00e0n, x\u1ebfp h\u1ea1ng v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00f4i tr\u01b0\u1eddng v\u00e0 c\u00e1c ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng c\u00f3 th\u1ec3 truy xu\u1ea5t \u0111\u01b0\u1ee3c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn h\u00e0ng \u0111\u1ea7u n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t khu\u00f4n kh\u1ed5 th\u1eadn tr\u1ecdng, kh\u00f4ng ph\u1ea3i l\u00e0 x\u1ebfp h\u1ea1ng kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3. Li\u00ean k\u1ebft c\u1ea7u n\u1ed1i v\u1edbi chi\u1ebfn l\u01b0\u1ee3c s\u1ea1c tr\u01b0\u1edbc, ng\u1eaft \u0111i\u1ec7n kh\u1ea9n c\u1ea5p v\u00e0 gi\u1ea3i quy\u1ebft s\u1ef1 c\u1ed1 c\u1ee7a h\u1ec7 th\u1ed1ng. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111\u01b0a ra b\u1eb1ng ch\u1ee9ng d\u1ef1a tr\u00ean d\u1eef li\u1ec7u th\u1ef1c t\u1ebf v\u00e0 t\u00e1ch bi\u1ec7t kh\u1ea3 n\u0103ng s\u1ea3n ph\u1ea9m v\u1edbi tr\u00e1ch nhi\u1ec7m l\u1eafp \u0111\u1eb7t.<\/p>\n

\"Top<\/p>\n

So s\u00e1nh th\u1ecb tr\u01b0\u1eddng c\u1ea7u n\u1ed1i DC<\/h2>\n

C\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang b\u1eaft \u0111\u1ea7u t\u1eeb ranh gi\u1edbi \u1ee9ng d\u1ee5ng. H\u00e3y x\u00e1c \u0111\u1ecbnh ngu\u1ed3n, t\u1ea3i, d\u00e2y d\u1eabn, m\u1ee9c \u0111\u1ed9 s\u1ef1 c\u1ed1 v\u00e0 m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh tr\u01b0\u1edbc khi so s\u00e1nh c\u00e1c catalogue. M\u1ed9t thi\u1ebft b\u1ecb tr\u00f4ng c\u00f3 v\u1ebb ph\u00f9 h\u1ee3p v\u1ec1 \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n v\u1eabn c\u00f3 th\u1ec3 h\u1ecfng v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu h\u1ed3 quang, t\u00ednh ch\u1ecdn l\u1ecdc, nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t. H\u00e3y s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng cong th\u1eddi gian-d\u00f2ng \u0111i\u1ec7n c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 ti\u00eau chu\u1ea9n \u0111i d\u00e2y \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng l\u00e0m ng\u00f4n ng\u1eef chung gi\u1eefa thi\u1ebft k\u1ebf, mua s\u1eafm v\u00e0 ch\u1ea1y th\u1eed.<\/p>\n

L\u1eadp t\u00e0i li\u1ec7u v\u1ec1 c\u00e1c gi\u1ea3 \u0111\u1ecbnh v\u00e0 ki\u1ec3m tra ch\u00fang t\u1ea1i t\u1ee7 \u0111i\u1ec7n. V\u00ed d\u1ee5, m\u1ed9t nghi\u00ean c\u1ee9u v\u1ec1 b\u1ea3o v\u1ec7 c\u1ea7n n\u00eau r\u00f5 d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch d\u1ef1 ki\u1ebfn, d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng (inrush) d\u1ef1 ki\u1ebfn, kh\u1ea3 n\u0103ng mang d\u00f2ng c\u1ee7a d\u00e2y d\u1eabn v\u00e0 th\u1eddi gian c\u1eaft y\u00eau c\u1ea7u. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u00f3 t\u00ean g\u1ecdi c\u1ee5 th\u1ec3 nh\u01b0 th\u1eed nghi\u1ec7m ti\u00eam d\u00f2ng s\u01a1 c\u1ea5p, th\u1eed nghi\u1ec7m \u0111i\u1ec7n tr\u1edf c\u00e1ch \u0111i\u1ec7n ho\u1eb7c nghi\u00ean c\u1ee9u ph\u1ed1i h\u1ee3p s\u1ebd h\u1eefu \u00edch h\u01a1n so v\u1edbi m\u1ed9t tuy\u00ean b\u1ed1 chung chung r\u1eb1ng m\u1ed9t s\u1ea3n ph\u1ea9m \u0111\u1ea1t \u201cc\u1ea5p \u0111\u1ed9 c\u00f4ng nghi\u1ec7p.\u201d<\/p>\n

N\u1ebfu c\u00e2u tr\u1ea3 l\u1eddi thay \u0111\u1ed5i theo th\u1ecb tr\u01b0\u1eddng \u0111\u00edch, h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u00e1p ho\u1eb7c lo\u1ea1i \u1ee9ng d\u1ee5ng, h\u00e3y n\u00eau gi\u1ea3 \u0111\u1ecbnh \u0111\u00f3 trong th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn b\u1eb1ng v\u0103n b\u1ea3n tr\u01b0\u1edbc khi ph\u00e1t h\u00e0nh.<\/p>\n

B\u1eb1ng ch\u1ee9ng v\u1ec1 \u0111i\u1ec7n \u00e1p\/t\u1ea7n s\u1ed1<\/h2>\n

C\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang b\u1eaft \u0111\u1ea7u t\u1eeb ranh gi\u1edbi \u1ee9ng d\u1ee5ng. H\u00e3y x\u00e1c \u0111\u1ecbnh ngu\u1ed3n, t\u1ea3i, d\u00e2y d\u1eabn, m\u1ee9c \u0111\u1ed9 s\u1ef1 c\u1ed1 v\u00e0 m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh tr\u01b0\u1edbc khi so s\u00e1nh c\u00e1c catalogue. M\u1ed9t thi\u1ebft b\u1ecb tr\u00f4ng c\u00f3 v\u1ebb ph\u00f9 h\u1ee3p v\u1ec1 \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n v\u1eabn c\u00f3 th\u1ec3 h\u1ecfng v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu h\u1ed3 quang, t\u00ednh ch\u1ecdn l\u1ecdc, nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t. H\u00e3y s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng cong th\u1eddi gian-d\u00f2ng \u0111i\u1ec7n c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 ti\u00eau chu\u1ea9n \u0111i d\u00e2y \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng l\u00e0m ng\u00f4n ng\u1eef chung gi\u1eefa thi\u1ebft k\u1ebf, mua s\u1eafm v\u00e0 ch\u1ea1y th\u1eed.<\/p>\n

L\u1eadp t\u00e0i li\u1ec7u v\u1ec1 c\u00e1c gi\u1ea3 \u0111\u1ecbnh v\u00e0 ki\u1ec3m tra ch\u00fang t\u1ea1i t\u1ee7 \u0111i\u1ec7n. V\u00ed d\u1ee5, m\u1ed9t nghi\u00ean c\u1ee9u v\u1ec1 b\u1ea3o v\u1ec7 c\u1ea7n n\u00eau r\u00f5 d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch d\u1ef1 ki\u1ebfn, d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng (inrush) d\u1ef1 ki\u1ebfn, kh\u1ea3 n\u0103ng mang d\u00f2ng c\u1ee7a d\u00e2y d\u1eabn v\u00e0 th\u1eddi gian c\u1eaft y\u00eau c\u1ea7u. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u00f3 t\u00ean g\u1ecdi c\u1ee5 th\u1ec3 nh\u01b0 th\u1eed nghi\u1ec7m ti\u00eam d\u00f2ng s\u01a1 c\u1ea5p, th\u1eed nghi\u1ec7m \u0111i\u1ec7n tr\u1edf c\u00e1ch \u0111i\u1ec7n ho\u1eb7c nghi\u00ean c\u1ee9u ph\u1ed1i h\u1ee3p s\u1ebd h\u1eefu \u00edch h\u01a1n so v\u1edbi m\u1ed9t tuy\u00ean b\u1ed1 chung chung r\u1eb1ng m\u1ed9t s\u1ea3n ph\u1ea9m \u0111\u1ea1t \u201cc\u1ea5p \u0111\u1ed9 c\u00f4ng nghi\u1ec7p.\u201d<\/p>\n

N\u1ebfu c\u00e2u tr\u1ea3 l\u1eddi thay \u0111\u1ed5i theo th\u1ecb tr\u01b0\u1eddng \u0111\u00edch, h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u00e1p ho\u1eb7c lo\u1ea1i \u1ee9ng d\u1ee5ng, h\u00e3y n\u00eau gi\u1ea3 \u0111\u1ecbnh \u0111\u00f3 trong th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn b\u1eb1ng v\u0103n b\u1ea3n tr\u01b0\u1edbc khi ph\u00e1t h\u00e0nh.<\/p>\n

N\u1ed7 l\u1ef1c c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t OEM v\u00e0 vi\u1ec7c th\u1eed nghi\u1ec7m v\u00f2ng \u0111\u1eddi<\/h2>\n

C\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang b\u1eaft \u0111\u1ea7u t\u1eeb ranh gi\u1edbi \u1ee9ng d\u1ee5ng. H\u00e3y x\u00e1c \u0111\u1ecbnh ngu\u1ed3n, t\u1ea3i, d\u00e2y d\u1eabn, m\u1ee9c \u0111\u1ed9 s\u1ef1 c\u1ed1 v\u00e0 m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh tr\u01b0\u1edbc khi so s\u00e1nh c\u00e1c catalogue. M\u1ed9t thi\u1ebft b\u1ecb tr\u00f4ng c\u00f3 v\u1ebb ph\u00f9 h\u1ee3p v\u1ec1 \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n v\u1eabn c\u00f3 th\u1ec3 h\u1ecfng v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu h\u1ed3 quang, t\u00ednh ch\u1ecdn l\u1ecdc, nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t. H\u00e3y s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng cong th\u1eddi gian-d\u00f2ng \u0111i\u1ec7n c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 ti\u00eau chu\u1ea9n \u0111i d\u00e2y \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng l\u00e0m ng\u00f4n ng\u1eef chung gi\u1eefa thi\u1ebft k\u1ebf, mua s\u1eafm v\u00e0 ch\u1ea1y th\u1eed.<\/p>\n

L\u1eadp t\u00e0i li\u1ec7u v\u1ec1 c\u00e1c gi\u1ea3 \u0111\u1ecbnh v\u00e0 ki\u1ec3m tra ch\u00fang t\u1ea1i t\u1ee7 \u0111i\u1ec7n. V\u00ed d\u1ee5, m\u1ed9t nghi\u00ean c\u1ee9u v\u1ec1 b\u1ea3o v\u1ec7 c\u1ea7n n\u00eau r\u00f5 d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch d\u1ef1 ki\u1ebfn, d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng (inrush) d\u1ef1 ki\u1ebfn, kh\u1ea3 n\u0103ng mang d\u00f2ng c\u1ee7a d\u00e2y d\u1eabn v\u00e0 th\u1eddi gian c\u1eaft y\u00eau c\u1ea7u. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u00f3 t\u00ean g\u1ecdi c\u1ee5 th\u1ec3 nh\u01b0 th\u1eed nghi\u1ec7m ti\u00eam d\u00f2ng s\u01a1 c\u1ea5p, th\u1eed nghi\u1ec7m \u0111i\u1ec7n tr\u1edf c\u00e1ch \u0111i\u1ec7n ho\u1eb7c nghi\u00ean c\u1ee9u ph\u1ed1i h\u1ee3p s\u1ebd h\u1eefu \u00edch h\u01a1n so v\u1edbi m\u1ed9t tuy\u00ean b\u1ed1 chung chung r\u1eb1ng m\u1ed9t s\u1ea3n ph\u1ea9m \u0111\u1ea1t \u201cc\u1ea5p \u0111\u1ed9 c\u00f4ng nghi\u1ec7p.\u201d<\/p>\n

N\u1ebfu c\u00e2u tr\u1ea3 l\u1eddi thay \u0111\u1ed5i theo th\u1ecb tr\u01b0\u1eddng \u0111\u00edch, h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u00e1p ho\u1eb7c lo\u1ea1i \u1ee9ng d\u1ee5ng, h\u00e3y n\u00eau gi\u1ea3 \u0111\u1ecbnh \u0111\u00f3 trong th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn b\u1eb1ng v\u0103n b\u1ea3n tr\u01b0\u1edbc khi ph\u00e1t h\u00e0nh.<\/p>\n

\"CHAC<\/p>\n

Danh s\u00e1ch mua s\u1eafm g\u1ed3m 10 s\u1ea3n ph\u1ea9m<\/h2>\n
    \n
  1. Ti\u00eau chu\u1ea9n v\u00e0 phi\u00ean b\u1ea3n s\u1ea3n ph\u1ea9m \u00e1p d\u1ee5ng.<\/li>\n
  2. B\u1eb1ng ch\u1ee9ng v\u1ec1 th\u1eed nghi\u1ec7m ho\u1eb7c ch\u1ee9ng nh\u1eadn theo lo\u1ea1i d\u00e0nh ri\u00eang cho m\u1eabu s\u1ea3n ph\u1ea9m.<\/li>\n
  3. \u0110\u00e1nh gi\u00e1 \u0111i\u1ec7n \u00e1p, d\u00f2ng \u0111i\u1ec7n v\u00e0 c\u00f4ng su\u1ea5t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb.<\/li>\n
  4. D\u1eef li\u1ec7u theo th\u1eddi gian th\u1ef1c ho\u1eb7c theo lo\u1ea1i h\u00ecnh s\u1eed d\u1ee5ng.<\/li>\n
  5. T\u00ednh kh\u1ea3 d\u1ee5ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c \u0111\u1ed1i v\u1edbi v\u1eadt li\u1ec7u, l\u00f4 h\u00e0ng v\u00e0 s\u1ed1 s\u00eari.<\/li>\n
  6. C\u00e1c thi\u1ebft b\u1ecb ki\u1ec3m so\u00e1t hi\u1ec7u chu\u1ea9n v\u00e0 ki\u1ec3m tra cu\u1ed1i d\u00e2y chuy\u1ec1n.<\/li>\n
  7. Qu\u1ea3n l\u00fd thay \u0111\u1ed5i b\u1ea3n v\u1ebd, nh\u00e3n m\u00e1c v\u00e0 ph\u1ea7n m\u1ec1m ho\u1eb7c c\u00f4ng c\u1ee5 ch\u1ebf t\u1ea1o.<\/li>\n
  8. H\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt v\u00e0 quy tr\u00ecnh m\u1eabu c\u1ee7a OEM\/ODM.<\/li>\n
  9. Kh\u1ea3 n\u0103ng \u0111\u00e1p \u1ee9ng, gi\u1ea3 \u0111\u1ecbnh v\u1ec1 th\u1eddi gian th\u1ef1c hi\u1ec7n v\u00e0 k\u1ebf ho\u1ea1ch li\u00ean t\u1ee5c.<\/li>\n
  10. Qu\u00e1 tr\u00ecnh b\u1ea3o h\u00e0nh, ph\u00e2n t\u00edch s\u1ef1 c\u1ed1 v\u00e0 ph\u1ea3n h\u1ed3i k\u1ef9 thu\u1eadt.<\/li>\n<\/ol>\n

    So s\u00e1nh cho m\u1ed9t th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u00f3 t\u00ednh b\u1ea3o v\u1ec7<\/h2>\n\n\n\n\n\n\n\n
    K\u00edch th\u01b0\u1edbc<\/th>\nL\u1ef1a ch\u1ecdn A<\/th>\nPh\u01b0\u01a1ng \u00e1n B<\/th>\n<\/tr>\n<\/thead>\n
    Vai tr\u00f2 thay \u0111\u1ed5i<\/td>\nD\u1eef li\u1ec7u v\u1ec1 tu\u1ed5i th\u1ecd v\u00e0 th\u1eed nghi\u1ec7m l\u00e0m\/kh\u00f4ng l\u00e0m vi\u1ec7c<\/td>\nLi\u1ec7u n\u00f3 c\u00f3 t\u01b0\u01a1ng x\u1ee9ng v\u1edbi t\u1ea3i tr\u1ecdng th\u1ef1c c\u1ee7a DC kh\u00f4ng?<\/td>\n<\/tr>\n
    Cu\u1ed9n d\u00e2y\/\u0111i\u1ec1u khi\u1ec3n<\/td>\n\u0110\u1ed9 \u0111i\u1ec7n tr\u1edf cu\u1ed9n d\u00e2y, ti\u1ebft ki\u1ec7m \u0111i\u1ec7n v\u00e0 ch\u1ea9n \u0111o\u00e1n<\/td>\nN\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd nh\u01b0 th\u1ebf n\u00e0o?<\/td>\n<\/tr>\n
    Ch\u1ea5t l\u01b0\u1ee3ng<\/td>\nT\u00ednh kh\u1ea3 quan v\u00e0 ki\u1ec3m tra cu\u1ed1i d\u00e2y chuy\u1ec1n<\/td>\nC\u00f3 th\u1ec3 \u0111i\u1ec1u tra nh\u1eefng th\u1ea5t b\u1ea1i kh\u00f4ng?<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    C\u00e1c ho\u1ea1t \u0111\u1ed9ng l\u1ef1a ch\u1ecdn v\u00e0 mua s\u1eafm<\/h2>\n
      \n
    1. \u0110\u00f3ng b\u0103ng c\u00e1c gi\u1ea3 \u0111\u1ecbnh v\u1ec1 \u0111i\u1ec7n: \u0111i\u1ec7n \u00e1p h\u1ec7 th\u1ed1ng, s\u1ed1 c\u1ef1c, d\u00f2ng t\u1ea3i, ph\u01b0\u01a1ng ph\u00e1p d\u1eabn \u0111i\u1ec7n, d\u00f2ng s\u1ef1 c\u1ed1 v\u00e0 gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng.<\/li>\n
    2. Y\u00eau c\u1ea7u d\u1eef li\u1ec7u theo d\u00f2ng s\u1ea3n ph\u1ea9m: phi\u00ean b\u1ea3n ti\u00eau chu\u1ea9n, \u0111\u01b0\u1eddng \u0111\u1eb7c t\u00ednh d\u00f2ng c\u1eaft, kh\u1ea3 n\u0103ng ng\u1eaft, gi\u1edbi h\u1ea1n c\u1ef1c \u0111\u1ea5u d\u00e2y, k\u00edch th\u01b0\u1edbc v\u00e0 b\u1eb1ng ch\u1ee9ng th\u1eed nghi\u1ec7m.<\/li>\n
    3. Xem x\u00e9t vi\u1ec7c ph\u1ed1i h\u1ee3p v\u1edbi c\u00e1c thi\u1ebft b\u1ecb th\u01b0\u1ee3ng ngu\u1ed3n v\u00e0 h\u1ea1 ngu\u1ed3n; kh\u00f4ng suy lu\u1eadn t\u00ednh ch\u1ecdn l\u1ecdc t\u1eeb nh\u00e3n hi\u1ec7u ho\u1eb7c k\u00edch th\u01b0\u1edbc khung.<\/li>\n
    4. Ph\u00ea duy\u1ec7t m\u1eabu ho\u1eb7c b\u00e0i vi\u1ebft \u0111\u1ea7u ti\u00ean, ghi l\u1ea1i l\u1ef1c si\u1ebft v\u00e0 c\u00e1c \u0111i\u1ec3m ki\u1ec3m tra, \u0111\u1ed3ng th\u1eddi x\u00e1c \u0111\u1ecbnh ai l\u00e0 ng\u01b0\u1eddi th\u1ef1c hi\u1ec7n c\u00e1c b\u00e0i ki\u1ec3m tra ch\u1ea1y th\u1eed.<\/li>\n
    5. L\u1eadp k\u1ebf ho\u1ea1ch ph\u1ee5 t\u00f9ng v\u00e0 qu\u1ea3n l\u00fd thay \u0111\u1ed5i \u0111\u1ec3 vi\u1ec7c thay th\u1ebf sau n\u00e0y kh\u00f4ng l\u00e0m thay \u0111\u1ed5i \u00e2m th\u1ea7m hi\u1ec7u su\u1ea5t an to\u00e0n.<\/li>\n<\/ol>\n

      \u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi mua \u0111ang so s\u00e1nh c\u00e1c d\u00f2ng s\u1ea3n ph\u1ea9m b\u1ea3o v\u1ec7 c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh, CHAC Electric cung c\u1ea5p th\u00f4ng tin c\u00f4ng khai v\u1ec1 C\u00e1c s\u1ea3n ph\u1ea9m c\u1ea7u ti\u1ebfp \u0111\u1ea5t<\/strong><\/a> v\u00e0 C\u00e1c s\u1ea3n ph\u1ea9m ti\u1ebfp \u0111i\u1ec3m AC<\/strong><\/a>. H\u00e3y coi c\u00e1c trang n\u00e0y l\u00e0 \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u v\u00e0 x\u00e1c nh\u1eadn d\u1eef li\u1ec7u m\u00f4 h\u00ecnh ch\u00ednh x\u00e1c cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/p>\n

      <\/p>\n

      Ki\u1ec3m tra d\u1eef li\u1ec7u c\u1ea7u ti\u1ebfp x\u00fac ngo\u00e0i \u0111i\u1ec7n \u00e1p cu\u1ed9n d\u00e2y<\/h2>\n

      A B\u1ed9 ph\u1eadn ti\u1ebfp x\u00fac DC \u0111i\u1ec7n \u00e1p cao<\/strong><\/a> Nh\u00e0 cung c\u1ea5p n\u00ean ghi ch\u00e9p \u0111i\u1ec7n \u00e1p ti\u1ebfp x\u00fac, d\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c, c\u00f4ng su\u1ea5t chuy\u1ec3n \u0111\u1ed5i, \u0111i\u1ec1u khi\u1ec3n cu\u1ed9n d\u00e2y v\u00e0 b\u1ed1 tr\u00ed \u0111\u1ea7u n\u1ed1i. Khi so s\u00e1nh C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u1ea7u ch\u00ec DC<\/strong><\/a>, th\u00eam ti\u00eau ch\u00ed th\u1ee9 ba l\u00e0 B\u1ed9 ph\u1eadn ti\u1ebfp x\u00fac tr\u01b0\u1edbc khi s\u1ea1c<\/strong> T\u00ednh t\u01b0\u01a1ng th\u00edch khi h\u1ec7 th\u1ed1ng bao g\u1ed3m t\u1ea3i \u0111i\u1ec7n dung. X\u00e1c nh\u1eadn c\u00f4ng su\u1ea5t d\u1ef1 ki\u1ebfn b\u1eb1ng b\u1ea3ng d\u1eef li\u1ec7u v\u00e0 s\u01a1 \u0111\u1ed3 \u1ee9ng d\u1ee5ng thay v\u00ec ch\u1ec9 so s\u00e1nh \u0111i\u1ec7n \u00e1p cu\u1ed9n d\u00e2y.<\/p>\n

      B\u1eb1ng ch\u1ee9ng mua s\u1eafm h\u1eefu \u00edch bao g\u1ed3m ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ed9 b\u1ec1n, h\u01b0\u1edbng d\u1eabn ph\u00e1t hi\u1ec7n h\u00e0n ti\u1ebfp x\u00fac, d\u1eef li\u1ec7u c\u00e1ch nhi\u1ec7t, ph\u00ea duy\u1ec7t m\u1eabu v\u00e0 th\u1ef1c h\u00e0nh ki\u1ec3m so\u00e1t thay \u0111\u1ed5i. L\u01b0u \u00fd c\u00e1c y\u00eau c\u1ea7u v\u1ec1 b\u1ed9 ph\u1eadn ti\u1ebfp x\u00fac AC v\u00e0 b\u1ed9 ph\u1eadn ti\u1ebfp x\u00fac DC cao \u00e1p trong c\u00e1c b\u1ea3ng \u0111\u00e1nh gi\u00e1 ri\u00eang bi\u1ec7t.<\/p>\n

      B\u00e0i vi\u1ebft li\u00ean quan: C\u00e1c lo\u1ea1i c\u1ea7u dao DC<\/a> gi\u00fap t\u00e1ch bi\u1ec7t vi\u1ec7c chuy\u1ec3n m\u1ea1ch kh\u1ecfi ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng trong c\u00f9ng m\u1ed9t h\u1ec7 th\u1ed1ng.<\/p>\n

      C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n

      T\u00f4i n\u00ean so s\u00e1nh nh\u1eefng s\u1ea3n ph\u1ea9m n\u00e0o gi\u1eefa c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u1ea7u ch\u00ec DC?<\/h3>\n

      So s\u00e1nh \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c, d\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c v\u00e0 gi\u00e1n \u0111o\u1ea1n, lo\u1ea1i s\u1eed d\u1ee5ng, \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac, t\u00ednh ch\u1ea5t cu\u1ed9n d\u00e2y, gi\u1edbi h\u1ea1n v\u1ec1 m\u00f4i tr\u01b0\u1eddng v\u00e0 c\u00e1c th\u1eed nghi\u1ec7m s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf \u0111\u00e3 \u0111\u01b0\u1ee3c ghi ch\u00e9p. So s\u00e1nh d\u1eef li\u1ec7u v\u1edbi c\u00f4ng su\u1ea5t th\u1ef1c t\u1ebf c\u1ee7a pin ho\u1eb7c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n.<\/p>\n

      T\u1ea1i sao kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u1ee7a c\u1ea7u n\u1ed1i DC l\u1ea1i quan tr\u1ecdng?<\/h3>\n

      M\u1ed9t thi\u1ebft b\u1ecb ti\u1ebfp x\u00fac ph\u1ea3i ng\u1eaft d\u00f2ng \u0111i\u1ec7n v\u00e0 \u0111i\u1ec7n \u00e1p \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh m\u00e0 kh\u00f4ng g\u00e2y ra qu\u00e1 tr\u00ecnh h\u00e0n ho\u1eb7c t\u1ea1o ra hi\u1ec7n t\u01b0\u1ee3ng h\u1ed3 quang nguy hi\u1ec3m. N\u0103ng l\u01b0\u1ee3ng l\u1ed7i pin v\u00e0 h\u00e0nh vi s\u1ea1c tr\u01b0\u1edbc l\u00e0m cho vi\u1ec7c ph\u00e2n t\u00edch \u1edf c\u1ea5p h\u1ec7 th\u1ed1ng tr\u1edf n\u00ean c\u1ea7n thi\u1ebft.<\/p>\n

      T\u00f4i l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c minh x\u1ebfp h\u1ea1ng hi\u1ec7n t\u1ea1i c\u1ee7a nh\u00e0 cung c\u1ea5p?<\/h3>\n

      H\u00e3y h\u1ecfi v\u1ec1 \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m, chu k\u1ef3 l\u00e0m vi\u1ec7c, nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng xung quanh, c\u00e1ch b\u1ed1 tr\u00ed c\u00e1p v\u00e0 ti\u00eau ch\u00ed v\u1ec1 th\u1eddi gian s\u1eed d\u1ee5ng cu\u1ed1i c\u00f9ng. M\u1ed9t ch\u1ec9 s\u1ed1 c\u00f4ng su\u1ea5t \u0111\u01a1n gi\u1ea3n l\u00e0 ch\u01b0a \u0111\u1ee7.<\/p>\n

      C\u00e1c ti\u1ebfp \u0111i\u1ec3m DC \u0111\u1ec1u c\u1ea7n \u0111\u01b0\u1ee3c s\u1ea1c tr\u01b0\u1edbc hay kh\u00f4ng?<\/h3>\n

      Nhi\u1ec1u h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng cao s\u1eed d\u1ee5ng ch\u1ebf \u0111\u1ed9 s\u1ea1c tr\u01b0\u1edbc \u0111\u1ec3 h\u1ea1n ch\u1ebf d\u00f2ng \u0111i\u1ec7n r\u00f2 r\u1ec9 v\u00e0o t\u1ee5 \u0111i\u1ec7n, nh\u01b0ng c\u1ea5u tr\u00fac v\u00e0 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh y\u00eau c\u1ea7u n\u00e0y. H\u00e3y tu\u00e2n theo thi\u1ebft k\u1ebf an to\u00e0n c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n

      T\u00e0i li\u1ec7u tham kh\u1ea3o c\u00f3 th\u1ea9m quy\u1ec1n<\/h2>\n