{"id":1586,"date":"2024-12-28T14:26:53","date_gmt":"2024-12-28T06:26:53","guid":{"rendered":"https:\/\/led.amasly.com\/?p=1586"},"modified":"2024-12-28T14:52:21","modified_gmt":"2024-12-28T06:52:21","slug":"requirements-for-the-electrical-strength-of-n-type-electrical-equipment-for-explosion-proof-purposes","status":"publish","type":"post","link":"https:\/\/led.amasly.com\/vi\/explosion-proof-equipment\/requirements-for-the-electrical-strength-of-n-type-electrical-equipment-for-explosion-proof-purposes\/","title":{"rendered":"Y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 b\u1ec1n \u0111i\u1ec7n c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n lo\u1ea1i \u201cn\u201d d\u00f9ng cho m\u1ee5c \u0111\u00edch ch\u1ed1ng ch\u00e1y n\u1ed5"},"content":{"rendered":"

\u0110\u1ed9 b\u1ec1n \u0111i\u1ec7n m\u00f4i c\u00e1ch \u0111i\u1ec7n c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n lo\u1ea1i \u201cn\u201d so v\u1edbi \u0111\u1ea5t ho\u1eb7c khung ph\u1ea3i tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh sau \u0111\u00e2y, tr\u1eeb tr\u01b0\u1eddng h\u1ee3p c\u00e1c m\u1ea1ch \u0111i\u1ec7n \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t trong thi\u1ebft b\u1ecb \u0111i\u1ec7n \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp v\u1edbi khung thi\u1ebft b\u1ecb ho\u1eb7c \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi khung trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh thi\u1ebft b\u1ecb: <\/p>\n\n\n\n

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

a. C\u00e1c th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh trong c\u00e1c ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p li\u00ean quan \u0111\u1ed1i v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c nhau c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n, ho\u1eb7c <\/p>\n\n\n\n

b. N\u1ebfu c\u00e1c y\u00eau c\u1ea7u th\u1eed nghi\u1ec7m n\u00eau tr\u00ean kh\u00f4ng t\u1ed3n t\u1ea1i, \u0111i\u1ec7n \u00e1p th\u1eed nghi\u1ec7m \u00edt nh\u1ea5t ph\u1ea3i tu\u00e2n th\u1ee7 c\u00e1c y\u00eau c\u1ea7u sau \u0111\u00e2y 1) ho\u1eb7c 2), v\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ecb ph\u00e1 v\u1ee1 trong \u00edt nh\u1ea5t 1 ph\u00fat. <\/p>\n\n\n\n

1) \u0110\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u0111i\u1ec7n c\u00f3 \u0111i\u1ec7n \u00e1p cung c\u1ea5p \u0111\u1ec9nh kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 90 V ho\u1eb7c \u0111i\u1ec7n \u00e1p \u0111\u1ec9nh b\u00ean trong kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 90 V, gi\u00e1 tr\u1ecb RMS c\u1ee7a \u0111i\u1ec7n \u00e1p th\u1eed nghi\u1ec7m l\u00e0 500 V; <\/p>\n\n\n\n

2) \u0110\u1ed1i v\u1edbi c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n kh\u00e1c ho\u1eb7c thi\u1ebft b\u1ecb c\u00f3 \u0111i\u1ec7n \u00e1p \u0111\u1ec9nh b\u00ean trong v\u01b0\u1ee3t qu\u00e1 90 V, gi\u00e1 tr\u1ecb RMS c\u1ee7a \u0111i\u1ec7n \u00e1p th\u1eed nghi\u1ec7m l\u00e0 gi\u00e1 tr\u1ecb l\u1edbn h\u01a1n gi\u1eefa 2 U + 1000 V ho\u1eb7c 1500 V.<\/p>\n\n\n\n

\u0110\u01b0\u1ee3c ph\u00e9p s\u1eed d\u1ee5ng \u0111i\u1ec7n \u00e1p th\u1eed nghi\u1ec7m DC thay cho \u0111i\u1ec7n \u00e1p th\u1eed nghi\u1ec7m AC \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh. \u0110\u1ed1i v\u1edbi cu\u1ed9n d\u00e2y c\u00e1ch \u0111i\u1ec7n, gi\u00e1 tr\u1ecb n\u00e0y ph\u1ea3i b\u1eb1ng 170% c\u1ee7a gi\u00e1 tr\u1ecb hi\u1ec7u d\u1ee5ng c\u1ee7a \u0111i\u1ec7n \u00e1p th\u1eed nghi\u1ec7m AC \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh, ho\u1eb7c \u0111\u1ed1i v\u1edbi kho\u1ea3ng c\u00e1ch c\u00e1ch \u0111i\u1ec7n ho\u1eb7c kho\u1ea3ng c\u00e1ch lan truy\u1ec1n trong m\u00f4i tr\u01b0\u1eddng c\u00e1ch \u0111i\u1ec7n, gi\u00e1 tr\u1ecb n\u00e0y ph\u1ea3i b\u1eb1ng 140% c\u1ee7a gi\u00e1 tr\u1ecb hi\u1ec7u d\u1ee5ng c\u1ee7a \u0111i\u1ec7n \u00e1p th\u1eed nghi\u1ec7m AC \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh. <\/p>\n\n\n\n

L\u01b0u \u00fd: U l\u00e0 gi\u00e1 tr\u1ecb cao h\u01a1n gi\u1eefa \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c c\u1ee7a ngu\u1ed3n c\u1ea5p ho\u1eb7c \u0111i\u1ec7n \u00e1p cao nh\u1ea5t x\u1ea3y ra b\u00ean trong thi\u1ebft b\u1ecb. <\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi thi\u1ebft b\u1ecb c\u00f3 c\u00e1c th\u00e0nh ph\u1ea7n c\u00e1ch ly \u0111i\u1ec7n, \u0111i\u1ec7n \u00e1p th\u1eed nghi\u1ec7m n\u00ean \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng ri\u00eang l\u1ebb cho t\u1eebng th\u00e0nh ph\u1ea7n \u1edf m\u1ee9c \u0111i\u1ec7n \u00e1p ph\u00f9 h\u1ee3p.<\/p>","protected":false},"excerpt":{"rendered":"

The insulation dielectric strength of “n” type electrical equipment to ground or frame shall comply with the following provisions, except when the circuits installed in the electrical equipment are directly connected to the equipment frame or connected to the frame during equipment operation: a. Tests as specified in the relevant industrial standards for the various […]<\/p>\n","protected":false},"author":1,"featured_media":1587,"comment_status":"closed","ping_status":"open","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":"disabled","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-1586","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-explosion-proof-equipment"],"uagb_featured_image_src":{"full":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/lQLPJwmlIEhxDanNAo3NBAGwh6Wl8DNh4UkHUImFCzUoAA_1025_653-e1735367197283.png",1025,352,false],"thumbnail":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/lQLPJwmlIEhxDanNAo3NBAGwh6Wl8DNh4UkHUImFCzUoAA_1025_653-e1735367197283-150x150.png",150,150,true],"medium":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/lQLPJwmlIEhxDanNAo3NBAGwh6Wl8DNh4UkHUImFCzUoAA_1025_653-e1735367197283-300x103.png",300,103,true],"medium_large":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/lQLPJwmlIEhxDanNAo3NBAGwh6Wl8DNh4UkHUImFCzUoAA_1025_653-e1735367197283-768x264.png",768,264,true],"large":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/lQLPJwmlIEhxDanNAo3NBAGwh6Wl8DNh4UkHUImFCzUoAA_1025_653-e1735367197283.png",1024,352,false],"1536x1536":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/lQLPJwmlIEhxDanNAo3NBAGwh6Wl8DNh4UkHUImFCzUoAA_1025_653-e1735367197283.png",1025,352,false],"2048x2048":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/lQLPJwmlIEhxDanNAo3NBAGwh6Wl8DNh4UkHUImFCzUoAA_1025_653-e1735367197283.png",1025,352,false],"trp-custom-language-flag":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/lQLPJwmlIEhxDanNAo3NBAGwh6Wl8DNh4UkHUImFCzUoAA_1025_653-e1735367197283.png",18,6,false]},"uagb_author_info":{"display_name":"Joe","author_link":"https:\/\/led.amasly.com\/vi\/author\/jacklin\/"},"uagb_comment_info":0,"uagb_excerpt":"The insulation dielectric strength of “n” type electrical equipment to ground or frame shall comply with the following provisions, except when the circuits installed in the electrical equipment are directly connected to the equipment frame or connected to the frame during equipment operation: a. 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