{"id":2181,"date":"2025-03-02T18:42:12","date_gmt":"2025-03-02T10:42:12","guid":{"rendered":"https:\/\/led.amasly.com\/?p=2181"},"modified":"2025-03-06T22:55:15","modified_gmt":"2025-03-06T14:55:15","slug":"nguyen-ly-chong-chay-no-cho-thiet-bi-dien-trong-moi-truong-de-chay-no","status":"publish","type":"post","link":"https:\/\/led.amasly.com\/vi\/thiet-bi-chong-chay-no\/nguyen-ly-chong-chay-no-cho-thiet-bi-dien-trong-moi-truong-de-chay-no\/","title":{"rendered":"Nguy\u00ean l\u00fd ch\u1ed1ng ch\u00e1y n\u1ed5 cho thi\u1ebft b\u1ecb \u0111i\u1ec7n trong m\u00f4i tr\u01b0\u1eddng c\u00f3 nguy c\u01a1 ch\u00e1y n\u1ed5"},"content":{"rendered":"

Nguy\u00ean l\u00fd ch\u1ed1ng ch\u00e1y n\u1ed5 cho thi\u1ebft b\u1ecb \u0111i\u1ec7n trong m\u00f4i tr\u01b0\u1eddng d\u1ec5 ch\u00e1y n\u1ed5<\/strong><\/strong><\/h1>\n\n\n\n
\"\"<\/a><\/figure>\n\n\n\n

Thi\u1ebft b\u1ecb \u0111i\u1ec7n an to\u00e0n t\u0103ng c\u01b0\u1eddng l\u00e0 m\u1ed9t lo\u1ea1i thi\u1ebft b\u1ecb \u0111i\u1ec7n ch\u1ed1ng ch\u00e1y n\u1ed5 chuy\u00ean d\u1ee5ng, \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u b\u1eb1ng bi\u1ec3u t\u01b0\u1ee3ng \u201ce\u201d. \u0110\u00e2y l\u00e0 lo\u1ea1i thi\u1ebft b\u1ecb \u0111i\u1ec7n ch\u1ed1ng ch\u00e1y n\u1ed5 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c doanh nghi\u1ec7p c\u00f4ng nghi\u1ec7p c\u00f3 s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a kh\u00ed d\u1ec5 ch\u00e1y.<\/p>\n\n\n\n

Th\u00f4ng th\u01b0\u1eddng, ng\u01b0\u1eddi ta cho r\u1eb1ng khi \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 11kV (gi\u00e1 tr\u1ecb RMS AC ho\u1eb7c DC), trong \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng ho\u1eb7c c\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u1ea5t th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn, s\u1ebd kh\u00f4ng g\u00e2y ra tia l\u1eeda, h\u1ed3 quang v\u00e0 (ho\u1eb7c) \u0111\u1ed9 \u1ea9m nguy hi\u1ec3m c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n, th\u00ec \u0111\u01b0\u1ee3c ph\u00e9p thi\u1ebft k\u1ebf v\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb \u0111i\u1ec7n c\u00f3 \u0111\u1ed9 an to\u00e0n cao. R\u00f5 r\u00e0ng, thi\u1ebft b\u1ecb \u0111i\u1ec7n kh\u00f4ng \u0111\u00e1p \u1ee9ng c\u00e1c \u0111i\u1ec1u ki\u1ec7n n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p ch\u1ebf t\u1ea1o th\u00e0nh lo\u1ea1i ch\u1ed1ng ch\u00e1y n\u1ed5 c\u00f3 \u0111\u1ed9 an to\u00e0n cao.<\/p>\n\n\n\n

D\u01b0\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111\u1ee7 n\u00eau tr\u00ean, thi\u1ebft b\u1ecb \u0111i\u1ec7n \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng an to\u00e0n kh\u00f4ng \u0111\u01b0\u1ee3c coi l\u00e0 \u201cch\u1ed1ng ch\u00e1y n\u1ed5\u201d b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng v\u1ecf b\u1ea3o v\u1ec7 ch\u1ed1ng ch\u00e1y n\u1ed5 (explosion-proof enclosure) nh\u01b0 trong thi\u1ebft b\u1ecb \u0111i\u1ec7n ch\u1ed1ng ch\u00e1y n\u1ed5, m\u00e0 thay v\u00e0o \u0111\u00f3, theo c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ea7n thi\u1ebft cho qu\u00e1 tr\u00ecnh ch\u00e1y n\u1ed5, c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c nhau c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng v\u1ec1 m\u1eb7t c\u01a1 h\u1ecdc v\u00e0\/ho\u1eb7c \u0111i\u1ec7n \u0111\u1ec3 n\u00e2ng cao h\u01a1n n\u1eefa m\u1ee9c \u0111\u1ed9 an to\u00e0n v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a ch\u00fang, t\u1eeb \u0111\u00f3 tr\u00e1nh kh\u1ea3 n\u0103ng t\u1ea1o ra tia l\u1eeda, h\u1ed3 quang v\u00e0\/ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 nguy hi\u1ec3m. C\u00e1c bi\u1ec7n ph\u00e1p t\u0103ng c\u01b0\u1eddng c\u01a1 h\u1ecdc v\u00e0\/ho\u1eb7c \u0111i\u1ec7n \u0111\u1ec3 n\u00e2ng cao m\u1ee9c \u0111\u1ed9 an to\u00e0n v\u00e0 \u0111\u1ed9 tin c\u1eady, nh\u1eb1m tr\u00e1nh vi\u1ec7c ch\u00fang t\u1ea1o ra tia l\u1eeda, h\u1ed3 quang v\u00e0\/ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 nguy hi\u1ec3m, t\u1ee9c l\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n ph\u1ea3i \u00e1p d\u1ee5ng v\u00e0 \u0111\u1ec1 xu\u1ea5t m\u1ed9t s\u1ed1 bi\u1ec7n ph\u00e1p c\u1ea5u tr\u00fac v\u00e0 y\u00eau c\u1ea7u an to\u00e0n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u00f3 \u00edt c\u00f3 kh\u1ea3 n\u0103ng tr\u1edf th\u00e0nh ngu\u1ed3n g\u00e2y ch\u00e1y c\u1ee7a kh\u00ed d\u1ec5 ch\u00e1y.<\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 nguy\u00ean t\u1eafc b\u1ea3o v\u1ec7 ch\u1ed1ng n\u1ed5 \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng an to\u00e0n cho thi\u1ebft b\u1ecb \u0111i\u1ec7n.<\/strong><\/strong><\/p>\n\n\n\n

Theo nguy\u00ean l\u00fd ch\u1ed1ng ch\u00e1y n\u1ed5 c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n an to\u00e0n t\u0103ng c\u01b0\u1eddng, b\u1ea1n c\u1ea7n bi\u1ebft r\u1eb1ng c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf ph\u1ea3i \u0111\u01b0a ra c\u00e1c y\u00eau c\u1ea7u \u0111\u1eb7c bi\u1ec7t c\u1ea7n thi\u1ebft v\u00e0 \u0111\u1ee7 v\u1ec1 c\u1ea5u tr\u00fac c\u01a1 kh\u00ed c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n, b\u1ea3o v\u1ec7 v\u1ecf, c\u00e1ch \u0111i\u1ec7n \u0111i\u1ec7n, k\u1ebft n\u1ed1i d\u00e2y, c\u00e1c v\u1ea5n \u0111\u1ec1 \u0111i\u1ec7n v\u00e0 kho\u1ea3ng c\u00e1ch r\u00f2 r\u1ec9, nhi\u1ec7t \u0111\u1ed9 gi\u1edbi h\u1ea1n, v.v., \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng thi\u1ebft b\u1ecb \u0111i\u1ec7n an to\u00e0n t\u0103ng c\u01b0\u1eddng c\u00f3 hi\u1ec7u su\u1ea5t an to\u00e0n ch\u1ed1ng ch\u00e1y n\u1ed5 \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n

N\u00f3i chung, c\u00e1c lo\u1ea1i thi\u1ebft b\u1ecb \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng trong m\u00f4i tr\u01b0\u1eddng ch\u1ed1ng ch\u00e1y n\u1ed5 bao g\u1ed3m: \u0111\u1ed9ng c\u01a1 AC (bao g\u1ed3m \u0111\u1ed9ng c\u01a1 quay, bi\u1ebfn \u00e1p v\u00e0 cu\u1ed9n d\u00e2y \u0111i\u1ec7n t\u1eeb, v.v.); \u0111\u00e8n v\u00e0 \u0111\u00e8n l\u1ed3ng (bao g\u1ed3m \u0111\u00e8n v\u00e0 \u0111\u00e8n l\u1ed3ng c\u00f3 b\u1ed9 \u1ed5n \u00e1p c\u1ea3m \u1ee9ng); b\u1ed9 gia nhi\u1ec7t; lo\u1ea1i pin; h\u1ed9p d\u00e2y k\u1ebft n\u1ed1i (h\u1ed9p) lo\u1ea1i; bi\u1ebfn \u00e1p d\u00f2ng \u0111i\u1ec7n cho thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng v\u00e0 bi\u1ebfn \u00e1p d\u00f2ng \u0111i\u1ec7n kh\u00f4ng d\u00f9ng cho thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng. Ngo\u00e0i c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n kh\u00e1c c\u1ea7n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf theo lo\u1ea1i ch\u1ed1ng ch\u00e1y n\u1ed5 n\u00e0y, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf v\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb \u0111i\u1ec7n ch\u1ed1ng ch\u00e1y n\u1ed5 ph\u1ea3i tu\u00e2n th\u1ee7 c\u00e1c y\u00eau c\u1ea7u chung c\u1ee7a lo\u1ea1i ch\u1ed1ng ch\u00e1y n\u1ed5, \u0111\u1ed3ng th\u1eddi c\u0169ng ph\u1ea3i xem x\u00e9t \u0111\u01b0a ra m\u1ed9t s\u1ed1 bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt v\u00e0 y\u00eau c\u1ea7u an to\u00e0n b\u1ed5 sung.<\/p>\n\n\n\n

C\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt b\u1ed5 sung v\u00e0 y\u00eau c\u1ea7u an to\u00e0n n\u00e0y, v\u1ec1 nguy\u00ean t\u1eafc, n\u00ean bao g\u1ed3m c\u00e1c n\u1ed9i dung sau:<\/p>\n\n\n\n

\u2460 C\u00e1c th\u00f4ng s\u1ed1 s\u1eed d\u1ee5ng c\u1ee7a c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 2\/3 gi\u00e1 tr\u1ecb \u0111\u1ecbnh m\u1ee9c c\u1ee7a ch\u00fang.<\/p>\n\n\n\n

\u2461 Th\u00e0nh ph\u1ea7n sinh nhi\u1ec7t kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ea1o ra nhi\u1ec7t \u0111\u1ed9 nguy hi\u1ec3m v\u01b0\u1ee3t qu\u00e1 nhi\u1ec7t \u0111\u1ed9 gi\u1edbi h\u1ea1n v\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn \u0111\u01a1n v\u1ecb m\u1ea1ch (c\u1ea5u tr\u00fac, th\u00f4ng s\u1ed1, c\u00e1ch \u0111i\u1ec7n) xung quanh n\u00f3. \u2462 Th\u00e0nh ph\u1ea7n kh\u00e1ng \u0111i\u1ec7n n\u00ean l\u00e0 lo\u1ea1i phim ho\u1eb7c kh\u00e1ng \u0111i\u1ec7n cu\u1ed9n d\u00e2y.<\/p>\n\n\n\n

\u2463 Th\u00e0nh ph\u1ea7n c\u1ea3m \u1ee9ng n\u00ean c\u00f3 c\u00e1c bi\u1ec7n ph\u00e1p \u0111\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 sinh ra c\u1ee7a l\u1ef1c \u0111i\u1ec7n \u0111\u1ed9ng ng\u01b0\u1ee3c t\u1ea1i th\u1eddi \u0111i\u1ec3m ng\u1eaft m\u1ea1ch.<\/p>\n\n\n\n

\u2464 C\u00e1c t\u1ee5 \u0111i\u1ec7n ph\u1ea3i l\u00e0 t\u1ee5 \u0111i\u1ec7n c\u00e1ch \u0111i\u1ec7n r\u1eafn. Kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u1ee5 \u0111i\u1ec7n \u0111i\u1ec7n ph\u00e2n v\u00e0 t\u1ee5 \u0111i\u1ec7n tantalum.<\/p>\n\n\n\n

(vi) C\u00e1c b\u1ed9 ph\u1eadn chuy\u1ec3n m\u1ea1ch \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1eb1ng v\u1ecf ch\u1ed1ng ch\u00e1y n\u1ed5, v.v.<\/p>\n\n\n\n

Th\u00f4ng th\u01b0\u1eddng, c\u00e1c lo\u1ea1i thi\u1ebft b\u1ecb ch\u1ed1ng ch\u00e1y n\u1ed5 n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i l\u00e0 thi\u1ebft b\u1ecb ch\u1ed1ng ch\u00e1y n\u1ed5. N\u1ebfu c\u1ea7n thi\u1ebft, c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 ch\u1ed1ng ch\u00e1y n\u1ed5 c\u1ea7n thi\u1ebft c\u1ee7a m\u1ed9t lo\u1ea1i thi\u1ebft b\u1ecb \u0111i\u1ec7n c\u1ee5 th\u1ec3 th\u00f4ng qua th\u1eed nghi\u1ec7m, v\u00ed d\u1ee5: c\u00e1c \u0111\u1ed9ng c\u01a1 AC t\u0103ng c\u01b0\u1eddng an to\u00e0n c\u00f3 \u0111i\u1ec7n \u00e1p cao ho\u1eb7c c\u00f4ng su\u1ea5t l\u1edbn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i l\u00e0 Lo\u1ea1i \u2161A, Lo\u1ea1i \u2161B ho\u1eb7c Lo\u1ea1i \u2161C th\u00f4ng qua th\u1eed nghi\u1ec7m. Tuy nhi\u00ean, lo\u1ea1i thi\u1ebft b\u1ecb \u0111i\u1ec7n an to\u00e0n t\u0103ng c\u01b0\u1eddng ch\u1ed1ng ch\u00e1y n\u1ed5 ph\u1ea3i c\u00f3 m\u1ee9c \u0111\u1ed9 b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb t\u01b0\u01a1ng \u1ee9ng, ch\u1eb3ng h\u1ea1n nh\u01b0 lo\u1ea1i b ho\u1eb7c lo\u1ea1i C; tr\u00ean th\u1ef1c t\u1ebf, n\u00f3 c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb l\u00e0 lo\u1ea1i Gb ho\u1eb7c lo\u1ea1i Gc. V\u1ecf b\u1ecdc c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n an to\u00e0n t\u0103ng c\u01b0\u1eddng th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng th\u00e9p t\u1ea5m (v\u00ed d\u1ee5: m\u1ed9t s\u1ed1 thanh th\u00e9p v\u00e0 thanh h\u1ee3p kim nh\u00f4m), gang \u0111\u00fac, nh\u00f4m \u0111\u00fac v\u00e0 nh\u1ef1a k\u1ef9 thu\u1eadt.<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Doanh s\u1ed1 b\u00e1n h\u00e0ng c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m \u0111i\u1ec7n ch\u1ed1ng ch\u00e1y n\u1ed5 tr\u00ean th\u1ecb tr\u01b0\u1eddng v\u1eabn ch\u01b0a \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ea5u tr\u00fac c\u1ee7a c\u00e1c ti\u00eau chu\u1ea9n li\u00ean quan. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 ph\u00e2n t\u00edch v\u1ec1 c\u00e1ch ki\u1ec3m tra t\u00ednh x\u00e1c th\u1ef1c c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n ch\u1ed1ng ch\u00e1y n\u1ed5 d\u1ea1ng h\u1ee3p ch\u1ea5t d\u1ef1a tr\u00ean c\u1ea5u tr\u00fac ph\u00e2n t\u00edch.<\/p>\n\n\n\n

V\u1ecf b\u1ea3o v\u1ec7 ch\u1ed1ng n\u1ed5 \u201cd\u201d<\/strong>\u201d\u0110\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u0111i\u1ec7n, lo\u1ea1i ch\u1ed1ng ch\u00e1y n\u1ed5, v\u1ecf thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p l\u1ef1c t\u1eeb b\u00ean trong do s\u1ef1 n\u1ed5 c\u1ee7a h\u1ed7n h\u1ee3p n\u1ed5 b\u00ean trong m\u00e0 kh\u00f4ng b\u1ecb h\u01b0 h\u1ecfng, v\u00e0 s\u1ebd kh\u00f4ng g\u00e2y ra s\u1ef1 ch\u00e1y n\u1ed5 b\u00ean ngo\u00e0i do m\u1ed9t ho\u1eb7c nhi\u1ec1u kh\u00ed ho\u1eb7c h\u01a1i \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh t\u1eeb m\u00f4i tr\u01b0\u1eddng kh\u00ed n\u1ed5.<\/p>\n\n\n\n

Lo\u1ea1i an to\u00e0n t\u0103ng c\u01b0\u1eddng \u201ce\u201d <\/strong>l\u00e0 lo\u1ea1i thi\u1ebft b\u1ecb \u0111i\u1ec7n ch\u1ed1ng ch\u00e1y n\u1ed5, t\u1ee9c l\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p b\u1ed5 sung \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng an to\u00e0n cho thi\u1ebft b\u1ecb \u0111i\u1ec7n, nh\u1eb1m ng\u0103n ch\u1eb7n kh\u1ea3 n\u0103ng sinh ra nhi\u1ec7t \u0111\u1ed9 nguy hi\u1ec3m, tia l\u1eeda \u0111i\u1ec7n v\u00e0 tia l\u1eeda trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh b\u00ecnh th\u01b0\u1eddng ho\u1eb7c trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u1ea5t th\u01b0\u1eddng \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh.<\/p>\n\n\n\n

Khi c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c nhau c\u1ee7a m\u1ed9t thi\u1ebft b\u1ecb \u0111i\u1ec7n ho\u1eb7c c\u00e1c th\u00e0nh ph\u1ea7n Ex s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i ch\u1ed1ng ch\u00e1y n\u1ed5 kh\u00e1c nhau, c\u00e1c bi\u1ec3n b\u00e1o ch\u1ed1ng ch\u00e1y n\u1ed5 n\u00ean bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c bi\u1ec3u t\u01b0\u1ee3ng lo\u1ea1i ch\u1ed1ng ch\u00e1y n\u1ed5 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. C\u00e1c bi\u1ec3u t\u01b0\u1ee3ng lo\u1ea1i ch\u1ed1ng ch\u00e1y n\u1ed5 n\u00ean \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 alphabet, v\u00e0 n\u00ean c\u00f3 m\u1ed9t kho\u1ea3ng c\u00e1ch nh\u1ecf gi\u1eefa ch\u00fang. Tr\u00ean th\u1ef1c t\u1ebf, c\u00e1c s\u1ea3n ph\u1ea9m \u0111i\u1ec7n ch\u1ed1ng ch\u00e1y n\u1ed5 (Ex d e) th\u01b0\u1eddng c\u00f3 hai c\u1ea5u tr\u00fac \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t:<\/p>\n\n\n\n

    \n
  1. C\u00e1c s\u1ea3n ph\u1ea9m \u0111i\u1ec7n ch\u1ed1ng ch\u00e1y n\u1ed5, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u1ed9p ph\u00e2n ph\u1ed1i \u0111i\u1ec7n ch\u1ed1ng ch\u00e1y n\u1ed5, b\u1ed9 kh\u1edfi \u0111\u1ed9ng t\u1eeb ch\u1ed1ng ch\u00e1y n\u1ed5, v.v., \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa khoang ch\u1ed1ng ch\u00e1y n\u1ed5 v\u00e0 khoang t\u0103ng c\u01b0\u1eddng an to\u00e0n. C\u1ea5u tr\u00fac n\u00e0y \u00e1p d\u1ee5ng cho c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c nhau c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n, l\u1ea7n l\u01b0\u1ee3t s\u1eed d\u1ee5ng lo\u1ea1i ch\u1ed1ng ch\u00e1y n\u1ed5 v\u00e0 lo\u1ea1i t\u0103ng c\u01b0\u1eddng an to\u00e0n, nh\u01b0 minh h\u1ecda trong h\u00ecnh d\u01b0\u1edbi \u0111\u00e2y. 2. Khoang t\u0103ng c\u01b0\u1eddng an to\u00e0n \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t b\u00ean trong c\u00e1c th\u00e0nh ph\u1ea7n Ex ch\u1ed1ng ch\u00e1y n\u1ed5 ho\u1eb7c th\u00e0nh ph\u1ea7n Ex ch\u1ed1ng ch\u00e1y n\u1ed5 v\u00e0 t\u0103ng c\u01b0\u1eddng an to\u00e0n c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m \u0111i\u1ec7n ch\u1ed1ng ch\u00e1y n\u1ed5, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00f4ng t\u1eafc chi\u1ebfu s\u00e1ng ch\u1ed1ng ch\u00e1y n\u1ed5, c\u1ed9t ch\u1ed1ng \u0103n m\u00f2n ch\u1ed1ng ch\u00e1y n\u1ed5 v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m \u0111i\u1ec7n kh\u00e1c. C\u1ea5u tr\u00fac n\u00e0y l\u00e0 ph\u1ea7n th\u00e2n ch\u00ednh c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n s\u1eed d\u1ee5ng th\u00e0nh ph\u1ea7n Ex ch\u1ed1ng ch\u00e1y n\u1ed5 ho\u1eb7c th\u00e0nh ph\u1ea7n Ex ch\u1ed1ng ch\u00e1y n\u1ed5 v\u00e0 t\u0103ng c\u01b0\u1eddng an to\u00e0n, nh\u01b0 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong h\u00ecnh d\u01b0\u1edbi \u0111\u00e2y.
    \u00a0\u00a0Tuy nhi\u00ean, c\u1ea7n l\u01b0u \u00fd r\u1eb1ng c\u1ea5u tr\u00fac c\u1ee7a vi\u1ec7c l\u1eafp \u0111\u1eb7t thi\u1ebft b\u1ecb qua \u0111\u1ea7u v\u00e0 v\u1ecf thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t gi\u1eefa gio\u0103ng cao su, c\u00f9ng v\u1edbi \u1ed1c v\u00edt t\u1eeb h\u1ec7 th\u1ed1ng c\u1ed1 \u0111\u1ecbnh b\u00ean trong v\u1ecf thi\u1ebft b\u1ecb, nh\u01b0 minh h\u1ecda b\u00ean d\u01b0\u1edbi, kh\u00f4ng \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u c\u1ee7a v\u1ecf ch\u1ed1ng ch\u00e1y n\u1ed5, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho v\u1ecf an to\u00e0n t\u0103ng c\u01b0\u1eddng.<\/li>\n<\/ol>\n\n\n\n
    \"\"<\/a><\/figure><\/div>\n\n\n\n

    Do \u0111\u00f3, n\u1ebfu nh\u00e3n hi\u1ec7u ch\u1ed1ng ch\u00e1y n\u1ed5 c\u1ee7a thi\u1ebft b\u1ecb thu\u1ed9c lo\u1ea1i ch\u1ed1ng ch\u00e1y n\u1ed5 Zengan composite v\u00e0 c\u00f3 c\u1ea5u tr\u00fac nh\u01b0 sau, c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh r\u1eb1ng s\u1ea3n ph\u1ea9m kh\u00f4ng \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u ch\u1ed1ng ch\u00e1y n\u1ed5: 1. Thi\u1ebft b\u1ecb \u0111i\u1ec7n m\u1ed9t khoang, c\u1ea5u tr\u00fac c\u1ee7a thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong H\u00ecnh 3, v\u00e0 b\u00ean trong c\u00f3 s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n g\u00e2y ch\u00e1y nh\u01b0 c\u1ea7u dao, m\u00f4-\u0111un ngu\u1ed3n, \u1ed5 c\u1eafm gia d\u1ee5ng, b\u1ea3ng m\u1ea1ch kh\u00f4ng an to\u00e0n v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n g\u00e2y ch\u00e1y kh\u00e1c. Tr\u1ea3 l\u1eddi: V\u1ecf b\u1ea3o v\u1ec7 c\u00f3 c\u1ea5u tr\u00fac nh\u01b0 tr\u00ean kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m v\u1ecf b\u1ea3o v\u1ec7 ch\u1ed1ng ch\u00e1y n\u1ed5, v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n g\u00e2y ch\u00e1y kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t b\u00ean trong v\u1ecf b\u1ea3o v\u1ec7 t\u0103ng c\u01b0\u1eddng an to\u00e0n, nh\u01b0 th\u1ec3 hi\u1ec7n trong h\u00ecnh d\u01b0\u1edbi \u0111\u00e2y.   <\/p>\n\n\n\n

    \"\"<\/a><\/figure><\/div>\n\n\n\n

    Thi\u1ebft b\u1ecb gi\u1edbi thi\u1ec7u thi\u1ebft b\u1ecb m\u1ed9t bu\u1ed3ng t\u1ed3n t\u1ea1i trong c\u1ea5u h\u00ecnh \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb trong H\u00ecnh 4 v\u00e0 kh\u00f4ng ch\u1ee9a b\u1ea5t k\u1ef3 th\u00e0nh ph\u1ea7n n\u1ed9i b\u1ed9 n\u00e0o c\u00f3 c\u1ea5u tr\u00fac ch\u1ed1ng ch\u00e1y n\u1ed5.
        Gi\u1ea3i th\u00edch: Thi\u1ebft b\u1ecb kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac ch\u1ed1ng ch\u00e1y n\u1ed5 v\u00e0 kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi lo\u1ea1i ch\u1ed1ng ch\u00e1y n\u1ed5 \u0111\u01b0\u1ee3c ghi tr\u00ean nh\u00e3n ch\u1ed1ng ch\u00e1y n\u1ed5, nh\u01b0 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong h\u00ecnh d\u01b0\u1edbi \u0111\u00e2y.<\/p>","protected":false},"excerpt":{"rendered":"

    Explosion-proof principle for electrical equipment in explosive atmospheres Increased safety electrical equipment is a specialized explosion-proof type of explosion-proof electrical equipment, indicated by the symbol “e”. It is a widely used type of explosion-proof electrical equipment in industrial enterprises where flammable gases are present. It is generally accepted that when the rated voltage of the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","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":"var(--ast-global-color-4)","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":[8],"tags":[],"class_list":["post-2181","post","type-post","status-publish","format-standard","hentry","category-explosion-proof-equipment"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"Joe","author_link":"https:\/\/led.amasly.com\/vi\/author\/jacklin\/"},"uagb_comment_info":0,"uagb_excerpt":"Explosion-proof principle for electrical equipment in explosive atmospheres Increased safety electrical equipment is a specialized explosion-proof type of explosion-proof electrical equipment, indicated by the symbol “e”. It is a widely used type of explosion-proof electrical equipment in industrial enterprises where flammable gases are present. It is generally accepted that when the rated voltage of the…","_links":{"self":[{"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/posts\/2181","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/comments?post=2181"}],"version-history":[{"count":2,"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/posts\/2181\/revisions"}],"predecessor-version":[{"id":2298,"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/posts\/2181\/revisions\/2298"}],"wp:attachment":[{"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/media?parent=2181"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/categories?post=2181"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/tags?post=2181"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}