Ch\u1ee9ng nh\u1eadn UL<\/a> l\u00e0 ch\u1ee9ng nh\u1eadn \u0111\u01b0\u1ee3c th\u00e0nh l\u1eadp b\u1edfi t\u1ed5 ch\u1ee9c th\u1eed nghi\u1ec7m to\u00e0n c\u1ea7u, t\u1ed5 ch\u1ee9c ph\u00e1t tri\u1ec3n ti\u00eau chu\u1ea9n UL Co., Ltd c\u1ee7a Hoa K\u1ef3. T\u1eeb nh\u1eefng ng\u00e0y \u0111\u1ea7u th\u00e0nh l\u1eadp n\u0103m 1894, UL \u0111\u00e3 ban h\u00e0nh g\u1ea7n 1.800 ti\u00eau chu\u1ea9n v\u1ea7 an to\u00e0n, ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 b\u1ec1n v\u1eefng, trong \u0111\u00f3 h\u01a1n 70% \u0111\u00e3 tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n qu\u1ed1c gia c\u1ee7a M\u1ef9 v\u00e0 UL, c\u0169ng l\u00e0 c\u01a1 quan ph\u00e1t tri\u1ec3n ti\u00eau chu\u1ea9n qu\u1ed1c gia c\u1ee7a Canada.<\/span><\/p>\nSong song v\u1edbi \u0111\u00f3 s\u1ebd c\u00f3 nh\u1eefng y\u00eau c\u1ea7u v\u1ec1 c\u1ea5u tr\u00fac d\u00e2y m\u00e0 c\u00e1p ch\u1ed1ng ch\u00e1y LLT ph\u1ea3i tu\u00e2n th\u1ee7 ch\u1eb3ng h\u1ea1n:<\/span><\/p>\nPh\u00e2n ph\u1ed1i c\u1ea5u tr\u00fac d\u00e2y AWM: Y\u00eau c\u1ea7u c\u1ee7a d\u00e2y \u0111i\u1ec7n t\u1eed UL AWM \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng th\u01b0\u1eddng l\u00e0 s\u1eed d\u1ee5ng UL 1581 \u0111\u1ec3 th\u1ec3 hi\u1ec7n c\u1ea5u tr\u00fac chi ti\u1ebft, hi\u1ec7u su\u1ea5t th\u1eed nghi\u1ec7m\u00a0<\/span><\/p>\n\n- 1XXX: D\u00e2y c\u00e1ch \u0111i\u1ec7n b\u1eb1ng nh\u1ef1a nhi\u1ec7t d\u1ebbo c\u00f3 c\u1ea5u tr\u00fac d\u00e2y d\u1eabn \u0111\u01a1n, nh\u01b0: AWM 1007, 1015, 1061<\/span><\/li>\n
- 2XXX: C\u1ea5u tr\u00fac v\u1ecf b\u1ecdc hai d\u00e2y d\u1eabn ho\u1eb7c nhi\u1ec1u d\u00e2y d\u1eabn, ch\u1eb3ng h\u1ea1n nh\u01b0 AWM 2468, 2464, 2919,..<\/span><\/li>\n
- 3XXX: d\u00e2y d\u1eabn \u0111\u01a1n, d\u00e2y c\u00e1ch \u0111i\u1ec7n ch\u1ecbu nhi\u1ec7t<\/span><\/li>\n
- 4XXX: C\u1ea5u tr\u00fac v\u1ecf b\u1ecdc, nhi\u1ec1u d\u00e2y d\u1eabn, c\u00f3 c\u00e1ch \u0111i\u1ec7n ch\u1ecbu nhi\u1ec7t<\/span><\/li>\n
- 5XXX: D\u00e2y d\u1ef1 \u00e1n \u0111\u1eb7c bi\u1ec7t m\u1ed9t d\u00e2y d\u1eabn ho\u1eb7c nhi\u1ec1u d\u00e2y d\u1eabn<\/span><\/li>\n<\/ul>\n
Nh\u1eefng v\u1eadt li\u1ec7u th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m d\u00e2y d\u1eabn \u0111i\u1ec7n t\u1eed nh\u01b0 d\u00e2y l\u00e1 \u0111\u1ed3ng, d\u00e2y \u0111\u1ed3ng tr\u1ea7n, d\u00e2y \u0111\u1ed3ng m\u1ea1 thi\u1ebfc, \u0111\u1ed3ng xo\u1eafn, d\u00e2y \u0111\u1ed3ng b\u1ecb m\u1eafc k\u1eb9t, d\u00e2y \u0111\u1ed3ng m\u1ea1 b\u1ea1c, th\u00e9p m\u1ea1 \u0111\u1ed3ng v\u00e0 c\u00f9ng v\u1edbi nh\u1eefng v\u1eadt li\u1ec7u kim lo\u1ea1i nh\u01b0 b\u1ea1c, nh\u00f4m, \u0111\u1ed3ng<\/span><\/p>\nNh\u1eefng kh\u00e1i ni\u1ec7m ti\u00eau chu\u1ea9n v\u1ec1 d\u00e2y \u0111i\u1ec7n t\u1eed m\u00e0 b\u1ea1n c\u1ea7n n\u1eafm r\u00f5:<\/span><\/p>\nD\u00e2y \u0111i\u1ec7n t\u1eed 1015 l\u00e0: th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111i\u1ec7n t\u1eed th\u01b0\u01a1ng m\u1ea1i, thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, thi\u1ebft b\u1ecb gia d\u1ee5ng, thi\u1ebft b\u1ecb chi\u1ebfu s\u00e1ng v\u00e0 d\u00e2y k\u1ebft n\u1ed1i b\u00ean trong c\u1ee7a thi\u1ebft b\u1ecb v\u00e0 d\u1ee5ng c\u1ee5, d\u00e2y d\u1eabn \u0111\u00e8n c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p \u0111\u1ed9ng c\u01a1 trong \u0111\u00f3 m\u00f4i tr\u01b0\u1eddng kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 150 \u0111\u1ed9 C,..<\/span><\/p>\n