{"id":3014,"date":"2025-04-09T21:16:22","date_gmt":"2025-04-09T13:16:22","guid":{"rendered":"https:\/\/led.amasly.com\/?page_id=3014"},"modified":"2025-04-09T21:16:29","modified_gmt":"2025-04-09T13:16:29","slug":"what-is-the-principle-of-explosion-proof","status":"publish","type":"page","link":"https:\/\/led.amasly.com\/vi\/knowledge\/explosion-proof-products-knowledge\/what-is-the-principle-of-explosion-proof\/","title":{"rendered":"Nguy\u00ean l\u00fd ch\u1ed1ng ch\u00e1y n\u1ed5 l\u00e0 g\u00ec?"},"content":{"rendered":"
<\/div><\/div>\n\n\n\n

Nguy\u00ean l\u00fd ch\u1ed1ng ch\u00e1y n\u1ed5 l\u00e0 g\u00ec?<\/strong><\/strong><\/h2>\n\n\n\n
\"\"<\/a><\/figure><\/div>\n\n\n\n

B\u1ea3o v\u1ec7 ch\u1ed1ng n\u1ed5 (b\u1ea3o v\u1ec7 ch\u1ed1ng n\u1ed5) l\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng t\u00e1c \u0111\u1ed9ng c\u1ee7a v\u1ee5 n\u1ed5 v\u00e0 nhi\u1ec7t \u0111\u1ed9 m\u00e0 kh\u00f4ng l\u00e0m gi\u00e1n \u0111o\u1ea1n ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u1ea3o v\u1ec7 ch\u1ed1ng n\u1ed5. \u0110\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 h\u00ecnh th\u00e0nh c\u1ee7a v\u1ee5 n\u1ed5, c\u1ea7n xem x\u00e9t ba \u0111i\u1ec1u ki\u1ec7n c\u1ea7n thi\u1ebft, v\u00e0 vi\u1ec7c h\u1ea1n ch\u1ebf m\u1ed9t trong ba \u0111i\u1ec1u ki\u1ec7n n\u00e0y s\u1ebd gi\u00fap ng\u0103n ch\u1eb7n s\u1ef1 h\u00ecnh th\u00e0nh c\u1ee7a v\u1ee5 n\u1ed5.<\/p>\n\n\n\n

T<\/strong>Ba \u0111i\u1ec1u ki\u1ec7n c\u1ea7n thi\u1ebft<\/strong><\/strong><\/h2>\n\n\n\n

1. Ba \u0111i\u1ec1u ki\u1ec7n c\u1ea7n thi\u1ebft \u0111\u1ec3 g\u00e2y ra m\u1ed9t v\u1ee5 n\u1ed5, ba \u0111i\u1ec1u ki\u1ec7n x\u1ea3y ra c\u00f9ng l\u00fac \u2014 v\u1ee5 n\u1ed5.<\/p>\n\n\n\n

\u0110\u1ed1t ch\u00e1y; kh\u00ed ch\u00e1y (c\u00e1c ch\u1ea5t \u0111\u1eb7c bi\u1ec7t c\u00f3 th\u1ec3 ch\u00e1y ho\u1eb7c n\u1ed5 trong \u0111i\u1ec1u ki\u1ec7n kh\u00f4ng c\u00f3 oxy, v\u00ed d\u1ee5 nh\u01b0 Mg trong kh\u00ed carbon dioxide c\u00f3 th\u1ec3 ch\u00e1y d\u1eef d\u1ed9i); ch\u1ea5t ch\u00e1y.<\/p>\n\n\n\n

2. \u0110\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a c\u00e1c v\u1ee5 n\u1ed5, c\u1ea7n xem x\u00e9t ba \u0111i\u1ec1u ki\u1ec7n c\u1ea7n thi\u1ebft. B\u1eb1ng c\u00e1ch h\u1ea1n ch\u1ebf m\u1ed9t trong ba \u0111i\u1ec1u ki\u1ec7n c\u1ea7n thi\u1ebft, c\u00f3 th\u1ec3 h\u1ea1n ch\u1ebf s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a c\u00e1c v\u1ee5 n\u1ed5.<\/p>\n\n\n\n

Ng\u0103n ch\u1eb7n c\u00e1c nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t, nh\u00e0 m\u00e1y l\u1ecdc d\u1ea7u s\u1eed d\u1ee5ng c\u00e1c ch\u1ea5t d\u1ec5 ch\u00e1y v\u00e0 d\u1ec5 n\u1ed5 c\u00f3 th\u1ec3 g\u00e2y ra n\u1ed5.<\/p>\n\n\n\n

Thi\u1ebft b\u1ecb v\u00e0 \u0111\u01b0\u1eddng \u1ed1ng do r\u00f2 r\u1ec9 ch\u1ea5t n\u1ed5 ho\u1eb7c ch\u1ea5t d\u1ec5 ch\u00e1y g\u00e2y ra do k\u00edn kh\u00f4ng t\u1ed1t, c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i trong h\u1ec7 th\u1ed1ng \u0111o l\u01b0\u1eddng c\u1ee7a c\u00e1c ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec7n v\u00e0 tia l\u1eeda do ch\u1eadp \u0111i\u1ec7n c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n, c\u00f3 th\u1ec3 g\u00e2y ra n\u1ed5 ho\u1eb7c ch\u00e1y.<\/p>\n\n\n\n

Ch\u1ed1ng ch\u00e1y n\u1ed5<\/strong> c\u00e1c bi\u1ec7n ph\u00e1p<\/strong><\/strong><\/h2>\n\n\n\n

(1) Ch\u1ecdn thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng ch\u1ed1ng ch\u00e1y n\u1ed5 v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n ch\u1ed1ng ch\u00e1y n\u1ed5 ph\u00f9 h\u1ee3p, c\u1ea5u tr\u00fac ti\u00eau chu\u1ea9n: Ch\u1ed1ng ch\u00e1y n\u1ed5, an to\u00e0n t\u0103ng c\u01b0\u1eddng, \u00e1p su\u1ea5t d\u01b0\u01a1ng, ch\u1ee9a c\u00e1t, an to\u00e0n n\u1ed9i t\u1ea1i v\u00e0 ch\u1ee9a d\u1ea7u.<\/p>\n\n\n\n

(2) L\u1ef1a ch\u1ecdn c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u00f4ng gi\u00f3 th\u00edch \u1ee9ng.<\/p>\n\n\n\n

(3) Ng\u0103n ch\u1eb7n ho\u1eb7c gi\u1ea3m thi\u1ec3u kh\u1ea3 n\u0103ng r\u00f2 r\u1ec9 c\u1ee7a c\u00e1c ch\u1ea5t d\u1ec5 ch\u00e1y.<\/p>\n\n\n\n

(4) Kh\u00f4ng s\u1eed d\u1ee5ng ho\u1eb7c h\u1ea1n ch\u1ebf s\u1eed d\u1ee5ng c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed c\u00f3 nguy c\u01a1 g\u00e2y tia l\u1eeda.<\/p>\n\n\n\n

(5) Duy tr\u00ec tr\u1ea1ng th\u00e1i tr\u01a1 b\u1eb1ng c\u00e1ch b\u01a1m kh\u00ed nit\u01a1.<\/p>\n\n\n\n

Ch\u1ed1ng ch\u00e1y n\u1ed5<\/strong> thi\u1ebft k\u1ebf<\/strong><\/strong><\/h2>\n\n\n\n

Trong thi\u1ebft k\u1ebf c\u00f4ng tr\u00ecnh, vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u c\u1ee7a c\u00f4ng tr\u00ecnh c\u1ea7n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd:<\/p>\n\n\n\n

(1) S\u1ed1 t\u1ea7ng c\u1ee7a t\u00f2a nh\u00e0. Th\u00f4ng th\u01b0\u1eddng, n\u00ean s\u1eed d\u1ee5ng t\u00f2a nh\u00e0 m\u1ed9t t\u1ea7ng. \u0110\u1ed1i v\u1edbi quy tr\u00ecnh s\u1ea3n xu\u1ea5t theo ph\u01b0\u01a1ng ph\u00e1p t\u1eeb d\u01b0\u1edbi l\u00ean ho\u1eb7c t\u1eeb tr\u00ean xu\u1ed1ng, ch\u1ec9 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng t\u00f2a nh\u00e0 nhi\u1ec1u t\u1ea7ng.<\/p>\n\n\n\n

Trong t\u00f2a nh\u00e0 nhi\u1ec1u t\u1ea7ng, n\u1ebfu ch\u1ec9 m\u1ed9t ph\u1ea7n c\u1ee7a ph\u00f2ng ch\u1ed1ng n\u1ed5, n\u00f3 n\u00ean \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed \u1edf t\u1ea7ng cao nh\u1ea5t c\u00f3 th\u1ec3, kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed \u1edf t\u1ea7ng h\u1ea7m ho\u1eb7c t\u1ea7ng b\u00e1n h\u1ea7m.<\/p>\n\n\n\n

N\u1ebfu qu\u00e1 tr\u00ecnh ch\u1ed1ng n\u1ed5 di\u1ec5n ra li\u00ean t\u1ee5c t\u1eeb d\u01b0\u1edbi l\u00ean \u0111\u1ebfn \u0111\u1ec9nh c\u1ee7a t\u1ea7ng cao nh\u1ea5t, c\u1ea7n m\u1edf c\u00e1c l\u1ed7 tho\u00e1t \u00e1p tr\u00ean m\u1ed7i t\u1ea7ng. Di\u1ec7n t\u00edch c\u1ee7a c\u00e1c l\u1ed7 tho\u00e1t \u00e1p n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1ecf h\u01a1n 15% so v\u1edbi di\u1ec7n t\u00edch s\u00e0n, v\u00e0 m\u00e1i nh\u00e0 ph\u1ea3i l\u00e0 m\u00e1i tho\u00e1t \u00e1p nh\u1eb9.<\/p>\n\n\n\n

\u2461 M\u1ee9c \u0111\u1ed9 ch\u1ed1ng ch\u00e1y. C\u00e1c v\u1ee5 n\u1ed5 th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn h\u1ecfa ho\u1ea1n, do \u0111\u00f3 c\u00e1c c\u00f4ng tr\u00ecnh ch\u1ed1ng n\u1ed5 c\u1ea7n c\u00f3 m\u1ee9c \u0111\u1ed9 ch\u1ed1ng ch\u00e1y cao: c\u00f4ng tr\u00ecnh m\u1ed9t t\u1ea7ng kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ea5p h\u01a1n hai, c\u00f4ng tr\u00ecnh nhi\u1ec1u t\u1ea7ng ph\u1ea3i \u0111\u1ea1t m\u1ee9c \u0111\u1ed9 t\u01b0\u01a1ng \u1ee9ng.<\/p>\n\n\n\n

\u2462 Lo\u1ea1i k\u1ebft c\u1ea5u. \u0110\u1ec3 tr\u00e1nh n\u1ed5 do s\u1eadp t\u00f2a nh\u00e0, n\u00ean ch\u1ecdn k\u1ebft c\u1ea5u ch\u1ecbu l\u1ef1c ch\u1ed1ng n\u1ed5 v\u00e0 \u00e1p d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p gi\u1ea3m \u00e1p. Th\u00f4ng th\u01b0\u1eddng s\u1eed d\u1ee5ng k\u1ebft c\u1ea5u b\u00ea t\u00f4ng c\u1ed1t th\u00e9p; n\u1ebfu t\u01b0\u1eddng d\u00e0y h\u01a1n ho\u1eb7c di\u1ec7n t\u00edch t\u00f2a nh\u00e0 ch\u1ed1ng n\u1ed5 r\u1ea5t nh\u1ecf, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng k\u1ebft c\u1ea5u h\u1ed7n h\u1ee3p t\u01b0\u1eddng g\u1ea1ch ch\u1ecbu l\u1ef1c, nh\u01b0ng ph\u1ea3i l\u1eafp \u0111\u1eb7t m\u00e1i gi\u1ea3m \u00e1p nh\u1eb9.<\/p>\n\n\n\n

\u2463 H\u00ecnh d\u1ea1ng m\u1eb7t b\u1eb1ng. M\u1eb7t b\u1eb1ng c\u00f4ng tr\u00ecnh n\u00ean c\u00f3 h\u00ecnh ch\u1eef nh\u1eadt. C\u00e0ng h\u1eb9p chi\u1ec1u r\u1ed9ng c\u1ee7a c\u00f4ng tr\u00ecnh, t\u1ef7 l\u1ec7 di\u1ec7n t\u00edch t\u01b0\u1eddng ngo\u00e0i so v\u1edbi th\u1ec3 t\u00edch c\u00e0ng l\u1edbn, c\u00e0ng thu\u1eadn l\u1ee3i cho vi\u1ec7c l\u1ea5y s\u00e1ng, th\u00f4ng gi\u00f3 v\u00e0 gi\u1ea3m \u00e1p l\u1ef1c. Chi\u1ec1u r\u1ed9ng c\u1ee7a c\u00f4ng tr\u00ecnh nhi\u1ec1u t\u1ea7ng kh\u00f4ng n\u00ean v\u01b0\u1ee3t qu\u00e1 18 m\u00e9t.<\/p>\n\n\n\n

\u2464 C\u1eeda ra v\u00e0o an to\u00e0n. C\u1eeda ra v\u00e0o tho\u00e1t hi\u1ec3m an to\u00e0n th\u00f4ng th\u01b0\u1eddng kh\u00f4ng n\u00ean \u00edt h\u01a1n hai, v\u00e0 ph\u1ea3i \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 kho\u1ea3ng c\u00e1ch tho\u00e1t hi\u1ec3m, chi\u1ec1u r\u1ed9ng tho\u00e1t hi\u1ec3m v\u00e0 c\u00e1c y\u00eau c\u1ea7u kh\u00e1c.<\/p>\n\n\n\n

\u2465 Thi\u1ebft k\u1ebf b\u1ed1 tr\u00ed khu v\u1ef1c ch\u1ed1ng ch\u00e1y n\u1ed5. C\u00e1c t\u00f2a nh\u00e0 ch\u1ec9 c\u1ea7n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ch\u1ed1ng ch\u00e1y n\u1ed5 m\u1ed9t ph\u1ea7n, khu v\u1ef1c ch\u1ed1ng ch\u00e1y n\u1ed5 n\u00ean \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed d\u1ecdc theo t\u01b0\u1eddng ngo\u00e0i, y\u00eau c\u1ea7u \u00edt nh\u1ea5t hai b\u1ec1 m\u1eb7t t\u01b0\u1eddng ngo\u00e0i;<\/p>\n\n\n\n

N\u1ebfu ch\u1ec9 c\u00f3 m\u1ed9t b\u1ec1 m\u1eb7t t\u01b0\u1eddng ngo\u00e0i, di\u1ec7n t\u00edch c\u1ee7a n\u00f3 ph\u1ea3i chi\u1ebfm h\u01a1n 25% so v\u1edbi t\u1ed5ng chu vi c\u1ee7a ph\u00f2ng. Trong tr\u01b0\u1eddng h\u1ee3p s\u1ea3n xu\u1ea5t ch\u1ea5t n\u1ed5 t\u1ea1i nh\u00e0 m\u00e1y, vi\u1ec7c s\u1eed d\u1ee5ng c\u00f4ng tr\u00ecnh m\u1edf ho\u1eb7c b\u00e1n m\u1edf l\u00e0 ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n

Ch\u1ed1ng ch\u00e1y n\u1ed5<\/strong> thi\u1ebft b\u1ecb<\/strong><\/strong><\/h2>\n\n\n\n

\u0110\u1ecbnh ngh\u0129a: Thi\u1ebft b\u1ecb \u0111i\u1ec7n kh\u00f4ng g\u00e2y ch\u00e1y n\u1ed5 m\u00f4i tr\u01b0\u1eddng xung quanh c\u00f3 kh\u1ea3 n\u0103ng n\u1ed5 d\u01b0\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n quy \u0111\u1ecbnh.<\/p>\n\n\n\n

\u0110\u01b0\u1ee3c chia th\u00e0nh ba lo\u1ea1i:<\/strong><\/strong><\/h4>\n\n\n\n

L\u1edbp \u2160: Thi\u1ebft b\u1ecb \u0111i\u1ec7n ng\u1ea7m trong m\u1ecf than;<\/p>\n\n\n\n

L\u1edbp II: Ngo\u00e0i c\u00e1c m\u1ecf than ng\u1ea7m, t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n kh\u00e1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng c\u00f3 nguy c\u01a1 n\u1ed5.<\/p>\n\n\n\n

L\u1edbp \u2161 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c l\u1edbp \u2161 A, \u2161 B v\u00e0 \u2161 C. Thi\u1ebft b\u1ecb c\u00f3 d\u1ea5u hi\u1ec7u \u2161 B c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho \u0111i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng c\u1ee7a thi\u1ebft b\u1ecb \u2161 A; thi\u1ebft b\u1ecb \u2161 C c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho \u0111i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng c\u1ee7a thi\u1ebft b\u1ecb \u2161 A v\u00e0 \u2161 B.<\/p>\n\n\n\n

L\u1edbp III: Thi\u1ebft b\u1ecb \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng b\u1ee5i d\u1ec5 ch\u00e1y n\u1ed5, tr\u1eeb c\u00e1c m\u1ecf than.<\/p>\n\n\n\n

Thi\u1ebft b\u1ecb \u0111i\u1ec7n lo\u1ea1i III \u0111\u01b0\u1ee3c chia th\u00e0nh: Lo\u1ea1i IIIA: v\u1eadt li\u1ec7u d\u1ec5 ch\u00e1y; Lo\u1ea1i IIIB: b\u1ee5i kh\u00f4ng d\u1eabn \u0111i\u1ec7n; Lo\u1ea1i IIIC: b\u1ee5i d\u1eabn \u0111i\u1ec7n.<\/p>\n\n\n\n

L\u01b0u \u00fd: D\u1ea5u hi\u1ec7u \u2161 C l\u00e0 m\u1ee9c \u0111\u1ed9 ch\u1ed1ng ch\u00e1y n\u1ed5 cao h\u01a1n, nh\u01b0ng kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 thi\u1ebft b\u1ecb c\u00f3 hi\u1ec7u su\u1ea5t t\u1ed1t nh\u1ea5t.<\/p>\n\n\n\n

Nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t t\u1ed1i \u0111a: Thi\u1ebft b\u1ecb \u0111i\u1ec7n trong ph\u1ea1m vi \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng b\u1ea5t l\u1ee3i nh\u1ea5t c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 ch\u00e1y n\u1ed5 c\u1ee7a m\u00f4i tr\u01b0\u1eddng xung quanh do b\u1ea5t k\u1ef3 ph\u1ea7n n\u00e0o c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 cao nh\u1ea5t. Nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t t\u1ed1i \u0111a ph\u1ea3i th\u1ea5p h\u01a1n nhi\u1ec7t \u0111\u1ed9 ch\u00e1y c\u1ee7a v\u1eadt li\u1ec7u d\u1ec5 ch\u00e1y.<\/p>\n\n\n\n

V\u00ed d\u1ee5: Trong m\u00f4i tr\u01b0\u1eddng c\u1ea3m bi\u1ebfn ch\u1ed1ng ch\u00e1y n\u1ed5 c\u00f3 nhi\u1ec7t \u0111\u1ed9 b\u1eaft l\u1eeda c\u1ee7a kh\u00ed n\u1ed5 l\u00e0 100 \u2103, th\u00ec trong \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng kh\u1eafc nghi\u1ec7t nh\u1ea5t, nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t t\u1ed1i \u0111a c\u1ee7a b\u1ea5t k\u1ef3 th\u00e0nh ph\u1ea7n n\u00e0o c\u1ee7a c\u1ea3m bi\u1ebfn c\u0169ng ph\u1ea3i nh\u1ecf h\u01a1n 100 \u2103.<\/p>\n\n\n\n

Nh\u00f3m nhi\u1ec7t \u0111\u1ed9: Thi\u1ebft b\u1ecb \u0111i\u1ec7n cho m\u00f4i tr\u01b0\u1eddng d\u1ec5 ch\u00e1y n\u1ed5 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh c\u00e1c nh\u00f3m T1-T6 d\u1ef1a tr\u00ean nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t t\u1ed1i \u0111a c\u1ee7a ch\u00fang.<\/p>\n\n\n\n

T1<\/td>T2<\/td>T3<\/td>T4<\/td>T5<\/td>T6<\/td><\/tr>
450 \u00b0C<\/td>300 \u00b0C<\/td>200\u00b0C<\/td>135 \u00b0C<\/td>100 \u00b0C<\/td>85\u00b0C<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Ch\u1ed1ng ch\u00e1y n\u1ed5<\/strong> c\u00e1ch<\/strong><\/strong><\/h2>\n\n\n\n

Ch\u1ea5t n\u1ed5 nguy hi\u1ec3m trong nh\u00e0 m\u00e1y ho\u1eb7c khu v\u1ef1c khai th\u00e1c m\u1ecf, d\u1ef1a tr\u00ean n\u0103ng l\u01b0\u1ee3ng \u0111\u00e1nh l\u1eeda, nhi\u1ec7t \u0111\u1ed9 \u0111\u00e1nh l\u1eeda t\u1ed1i thi\u1ec3u v\u00e0 s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a kh\u00ed n\u1ed5 nguy hi\u1ec3m t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng trong kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh, \u0111\u1ec3 ph\u00e2n lo\u1ea1i v\u00e0 \u0111\u00e1nh gi\u00e1 khoa h\u1ecdc, nh\u1eb1m x\u00e1c \u0111\u1ecbnh thi\u1ebft b\u1ecb ch\u1ed1ng n\u1ed5 t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng, bi\u1ec3n b\u00e1o ch\u1ed1ng n\u1ed5 v\u00e0 bi\u1ec3u m\u1eabu ch\u1ed1ng n\u1ed5.<\/p>\n\n\n\n

Gi\u1ea3i th\u00edch c\u00e1c thu\u1eadt ng\u1eef:<\/strong><\/strong><\/h4>\n\n\n\n

L\u1edbp ia: Trong \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, m\u1ed9t s\u1ef1 c\u1ed1 ho\u1eb7c hai s\u1ef1 c\u1ed1 kh\u00f4ng th\u1ec3 g\u00e2y ch\u00e1y h\u1ed7n h\u1ee3p kh\u00ed n\u1ed5 c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, h\u1ec7 s\u1ed1 an to\u00e0n l\u00e0 2.0; \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ef1 c\u1ed1, h\u1ec7 s\u1ed1 an to\u00e0n l\u00e0 1.5; \u0111\u1ed1i v\u1edbi hai s\u1ef1 c\u1ed1, h\u1ec7 s\u1ed1 an to\u00e0n l\u00e0 1.0.<\/p>\n\n\n\n

L\u01b0u \u00fd: C\u00e1c ti\u1ebfp \u0111i\u1ec3m c\u00f3 tia l\u1eeda ph\u1ea3i \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t trong v\u1ecf ch\u1ed1ng ch\u00e1y n\u1ed5, v\u1ecf k\u00edn kh\u00ed ho\u1eb7c \u0111\u01b0\u1ee3c nh\u00e2n \u0111\u00f4i \u0111\u1ec3 t\u0103ng\u4fc2 s\u1ed1 an to\u00e0n.<\/p>\n\n\n\n

L\u1edbp ib: Thi\u1ebft b\u1ecb \u0111i\u1ec7n kh\u00f4ng th\u1ec3 g\u00e2y ch\u00e1y c\u00e1c h\u1ed7n h\u1ee3p kh\u00ed n\u1ed5 trong \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng v\u00e0 khi x\u1ea3y ra m\u1ed9t s\u1ef1 c\u1ed1.<\/p>\n\n\n\n

Trong \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, h\u1ec7 s\u1ed1 an to\u00e0n l\u00e0 2.0; trong tr\u01b0\u1eddng h\u1ee3p x\u1ea3y ra s\u1ef1 c\u1ed1, h\u1ec7 s\u1ed1 an to\u00e0n l\u00e0 1.5.<\/p>\n\n\n\n

Trong \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, c\u00e1c ti\u1ebfp \u0111i\u1ec3m \u0111\u00e1nh l\u1eeda ph\u1ea3i \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1eb1ng v\u1ecf ch\u1ed1ng ch\u00e1y n\u1ed5 ho\u1eb7c v\u1ecf k\u00edn kh\u00ed, v\u00e0 c\u00f3 c\u00e1c bi\u1ec7n ph\u00e1p t\u1ef1 hi\u1ec3n th\u1ecb s\u1ef1 c\u1ed1. H\u1ec7 s\u1ed1 an to\u00e0n l\u00e0 1.0 cho m\u1ed9t s\u1ef1 c\u1ed1.<\/p>\n\n\n\n

EExd: c\u00f3 ngh\u0129a l\u00e0 \u00fd ngh\u0129a c\u1ee7a g\u00f3i ch\u1ed1ng ch\u00e1y n\u1ed5;<\/p>\n\n\n\n

IIC: ch\u1ec9 n\u0103ng l\u01b0\u1ee3ng \u0111\u00e1nh l\u1eeda uJ,280,>180,60\u2026. .80,<60; T6: ch\u1ec9 nh\u00f3m nhi\u1ec7t \u0111\u1ed9, t\u1ee9c l\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c nh\u00f3m nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau d\u1ef1a tr\u00ean nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t t\u1ed1i \u0111a c\u1ee7a n\u00f3. C\u00e1c nh\u00f3m nhi\u1ec7t \u0111\u1ed9 c\u1ee7a kh\u00ed \u0111\u01b0\u1ee3c chia theo c\u00e1c nhi\u1ec7t \u0111\u1ed9 \u0111\u00e1nh l\u1eeda kh\u00e1c nhau. t6 l\u00e0 85 \u0111\u1ed9.<\/p>\n\n\n\n

Thi\u1ebft b\u1ecb \u0111i\u1ec7n ch\u1ed1ng ch\u00e1y n\u1ed5 (d): ch\u1ec9 c\u00e1c b\u1ed9 ph\u1eadn c\u00f3 th\u1ec3 g\u00e2y ch\u00e1y n\u1ed5 c\u1ee7a h\u1ed7n h\u1ee3p n\u1ed5 \u0111\u01b0\u1ee3c bao b\u1ecdc trong m\u1ed9t v\u1ecf b\u1ecdc, v\u1ecf b\u1ecdc n\u00e0y c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t n\u1ed5 c\u1ee7a h\u1ed7n h\u1ee3p n\u1ed5 b\u00ean trong v\u00e0 ng\u0103n ch\u1eb7n s\u1ef1 lan truy\u1ec1n c\u1ee7a h\u1ed7n h\u1ee3p n\u1ed5 xung quanh v\u00e0 h\u1ed7n h\u1ee3p n\u1ed5 c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n.<\/p>\n\n\n\n

Thi\u1ebft b\u1ecb \u0111i\u1ec7n an to\u00e0n cao (e): Trong \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, kh\u00f4ng g\u00e2y ra s\u1ef1 ch\u00e1y n\u1ed5 c\u1ee7a c\u00e1c h\u1ed7n h\u1ee3p d\u1ec5 ch\u00e1y do tia l\u1eeda ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 nguy hi\u1ec3m, v\u00e0 trong c\u1ea5u tr\u00fac c\u00e1c bi\u1ec7n ph\u00e1p nh\u1eb1m n\u00e2ng cao m\u1ee9c \u0111\u1ed9 an to\u00e0n, nh\u1eb1m tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng ch\u00e1y n\u1ed5 trong \u0111i\u1ec1u ki\u1ec7n qu\u00e1 t\u1ea3i b\u00ecnh th\u01b0\u1eddng v\u00e0 qu\u00e1 t\u1ea3i \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n.<\/p>\n\n\n\n

Thi\u1ebft b\u1ecb \u0111i\u1ec7n an to\u00e0n n\u1ed9i t\u1ea1i (i): Thi\u1ebft b\u1ecb \u0111i\u1ec7n trong \u0111\u00f3 c\u1ea3 tia l\u1eeda \u0111i\u1ec7n l\u1eabn t\u00e1c \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ec1u kh\u00f4ng th\u1ec3 g\u00e2y ch\u00e1y n\u1ed5 c\u00e1c h\u1ed7n h\u1ee3p d\u1ec5 ch\u00e1y trong \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh b\u00ecnh th\u01b0\u1eddng ho\u1eb7c trong \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n

Thi\u1ebft b\u1ecb \u0111i\u1ec7n kh\u00f4ng t\u1ea1o tia l\u1eeda (n): Trong \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, thi\u1ebft b\u1ecb n\u00e0y kh\u00f4ng t\u1ea1o ra tia l\u1eeda ho\u1eb7c h\u1ed3 quang, kh\u00f4ng t\u1ea1o ra c\u00e1c b\u1ec1 m\u1eb7t c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c \u0111i\u1ec3m ch\u00e1y c\u00f3 th\u1ec3 g\u00e2y ch\u00e1y n\u1ed5 h\u1ed7n h\u1ee3p d\u1ec5 ch\u00e1y xung quanh, v\u00e0 th\u00f4ng th\u01b0\u1eddng kh\u00f4ng x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng ch\u00e1y n\u1ed5 do s\u1ef1 c\u1ed1 c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n.<\/p>\n\n\n\n

Lo\u1ea1i ch\u1ed1ng ch\u00e1y n\u1ed5 \u0111\u1eb7c bi\u1ec7t (s): Thi\u1ebft b\u1ecb \u0111i\u1ec7n ho\u1eb7c linh ki\u1ec7n s\u1eed d\u1ee5ng ti\u00eau chu\u1ea9n GB3836-83 kh\u00f4ng thu\u1ed9c lo\u1ea1i ch\u1ed1ng ch\u00e1y n\u1ed5, c\u00e1c c\u01a1 quan c\u00f3 th\u1ea9m quy\u1ec1n s\u1ebd ban h\u00e0nh quy \u0111\u1ecbnh t\u1ea1m th\u1eddi. G\u1eedi \u0111\u1ebfn B\u1ed9 Lao \u0111\u1ed9ng v\u00e0 Nh\u00e2n s\u1ef1 \u0111\u1ec3 l\u01b0u tr\u1eef, v\u00e0 do \u0111\u01a1n v\u1ecb ki\u1ec3m \u0111\u1ecbnh \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m, theo quy \u0111\u1ecbnh x\u1eed l\u00fd lo\u1ea1i thi\u1ebft b\u1ecb \u0111i\u1ec7n \u0111\u1eb7c bi\u1ec7t \u201cs\u201d.<\/p>\n\n\n\n

Khu v\u1ef1c nguy hi\u1ec3m<\/strong><\/strong><\/h2>\n\n\n\n

C\u00e1c khu v\u1ef1c nguy hi\u1ec3m trong khu v\u1ef1c n\u00e0y l\u00e0 s\u1ef1 t\u1ed3n t\u1ea1i th\u1ef1c t\u1ebf c\u1ee7a kh\u1ea3 n\u0103ng x\u1ea3y ra c\u00e1c \u0111o l\u01b0\u1eddng nguy hi\u1ec3m, \u0111i\u1ec1u n\u00e0y y\u00eau c\u1ea7u ph\u1ea3i \u00e1p d\u1ee5ng lo\u1ea1i ch\u1ed1ng ch\u00e1y n\u1ed5 ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n

1. \u1ee6y ban K\u1ef9 thu\u1eadt \u0110i\u1ec7n Qu\u1ed1c t\u1ebf \/ \u1ee6y ban K\u1ef9 thu\u1eadt \u0110i\u1ec7n Ch\u00e2u \u00c2u \u0111\u00e3 ph\u00e2n lo\u1ea1i c\u00e1c khu v\u1ef1c nguy hi\u1ec3m theo c\u00e1c l\u1edbp ph\u00e2n lo\u1ea1i sau:<\/p>\n\n\n\n

Khu v\u1ef1c 0 (Khu v\u1ef1c 0): Kh\u00ed n\u1ed5 lu\u00f4n hi\u1ec7n di\u1ec7n ho\u1eb7c trong th\u1eddi gian d\u00e0i; khu v\u1ef1c c\u00f3 s\u1ef1 hi\u1ec7n di\u1ec7n li\u00ean t\u1ee5c c\u1ee7a kh\u00ed nguy hi\u1ec3m v\u01b0\u1ee3t qu\u00e1 1000 gi\u1edd\/n\u0103m;<\/p>\n\n\n\n

Khu v\u1ef1c 1 (Khu v\u1ef1c 1): Kh\u00ed d\u1ec5 ch\u00e1y c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n ho\u1eb7c t\u1ed3n t\u1ea1i trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh b\u00ecnh th\u01b0\u1eddng c\u1ee7a thi\u1ebft b\u1ecb; s\u1ef1 hi\u1ec7n di\u1ec7n gi\u00e1n \u0111o\u1ea1n c\u1ee7a kh\u00ed nguy hi\u1ec3m t\u1eeb 10 \u0111\u1ebfn 1.000 gi\u1edd\/n\u0103m;<\/p>\n\n\n\n

Khu v\u1ef1c 2: Nh\u00ecn chung, kh\u00f4ng c\u00f3 kh\u00ed d\u1ec5 ch\u00e1y v\u00e0 ngay c\u1ea3 khi c\u00f3 x\u1ea3y ra th\u1ec9nh tho\u1ea3ng, th\u1eddi gian t\u1ed3n t\u1ea1i c\u01a1 b\u1ea3n c\u1ee7a n\u00f3 r\u1ea5t ng\u1eafn; nguy c\u01a1 x\u1ea3y ra t\u00ecnh tr\u1ea1ng nguy hi\u1ec3m t\u1ed3n t\u1ea1i trong kho\u1ea3ng th\u1eddi gian t\u1eeb 0,1 \u0111\u1ebfn 10 gi\u1edd\/n\u0103m;<\/p>\n\n\n\n

Trung Qu\u1ed1c \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c khu v\u1ef1c nguy hi\u1ec3m v\u00e0 t\u01b0\u01a1ng t\u1ef1 nh\u01b0 tr\u00ean.<\/p>\n\n\n\n

2. Ph\u00e2n lo\u1ea1i khu v\u1ef1c nguy hi\u1ec3m, ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf v\u00e0 ti\u00eau chu\u1ea9n c\u1ee7a Hoa K\u1ef3 \u0111\u1ec3 so s\u00e1nh.<\/p>\n\n\n\n

I.E.C.<\/a><\/p>\n\n\n\n

Khu v\u1ef1c kh\u00ed 0, Khu v\u1ef1c 1, Khu v\u1ef1c 2<\/p>\n\n\n\n

Khu v\u1ef1c b\u1ee5i 20, Khu v\u1ef1c 21, Khu v\u1ef1c 22<\/p>\n\n\n\n

N.E.C.<\/a><\/p>\n\n\n\n

Kh\u00ed lo\u1ea1i I, nh\u00f3m I, lo\u1ea1i I, nh\u00f3m I, lo\u1ea1i I, nh\u00f3m II<\/p>\n\n\n\n

B\u1ee5i Lo\u1ea1i II, Nh\u00f3m I, Lo\u1ea1i II, Nh\u00f3m II<\/p>\n\n\n\n

I.E.C.: \u1ee6y ban K\u1ef9 thu\u1eadt \u0110i\u1ec7n Qu\u1ed1c t\u1ebf<\/p>\n\n\n\n

N.E.C.: Ti\u00eau chu\u1ea9n \u0110i\u1ec7n Qu\u1ed1c gia, Hoa K\u1ef3.<\/p>\n\n\n\n

<\/div><\/div>\n\n\n\n

S\u1ea3n ph\u1ea9m li\u00ean quan<\/h2>\n\n\n\n
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\u0110\u00e8n LED ch\u1ed1ng ch\u00e1y n\u1ed5<\/a><\/h4>\n<\/div>\n\n\n\n
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\u0110\u00e8n LED ch\u1ed1ng n\u01b0\u1edbc, ch\u1ed1ng b\u1ee5i v\u00e0 ch\u1ed1ng va \u0111\u1eadp<\/a><\/h4>\n<\/div>\n\n\n\n
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\u0110\u00e8n chi\u1ebfu s\u00e1ng ch\u1ed1ng ch\u00e1y n\u1ed5 cho tr\u1ea1m x\u0103ng<\/a><\/h4>\n<\/div>\n<\/div><\/div>\n\n\n\n
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What is the principle of explosion proof? 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Explosion protection (explosion protection) refers to the ability to resist the impact of the explosion and heat without loss of normal operation is called explosion protection, to prevent the generation of explosions must be considered from the three necessary conditions, limiting one of the necessary conditions to limit…","_links":{"self":[{"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/pages\/3014","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/types\/page"}],"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=3014"}],"version-history":[{"count":1,"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/pages\/3014\/revisions"}],"predecessor-version":[{"id":3019,"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/pages\/3014\/revisions\/3019"}],"up":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/pages\/2374"}],"wp:attachment":[{"href":"https:\/\/led.amasly.com\/vi\/wp-json\/wp\/v2\/media?parent=3014"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}