{"id":1616,"date":"2025-01-01T20:38:48","date_gmt":"2025-01-01T12:38:48","guid":{"rendered":"https:\/\/led.amasly.com\/?p=1616"},"modified":"2025-05-26T20:25:17","modified_gmt":"2025-05-26T12:25:17","slug":"explosion-proof-lampsspecial-requirements-for-ambient-temperature-of-flameproof-electrical-equipment","status":"publish","type":"post","link":"https:\/\/led.amasly.com\/fr\/explosion-proof-equipment\/explosion-proof-lampsspecial-requirements-for-ambient-temperature-of-flameproof-electrical-equipment\/","title":{"rendered":"lampes antid\u00e9flagrantes - prescriptions sp\u00e9ciales pour la temp\u00e9rature ambiante du mat\u00e9riel \u00e9lectrique antid\u00e9flagrant"},"content":{"rendered":"

lampes antid\u00e9flagrantes La temp\u00e9rature ambiante correspond \u00e0 la temp\u00e9rature de l'air ou d'un autre milieu entourant l'\u00e9quipement ou le composant.<\/p>\n\n\n\n

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

Dans des circonstances normales, la temp\u00e9rature ambiante pour le fonctionnement de l'\u00e9quipement doit \u00eatre comprise entre -20 et 40 \u2103. Dans ce cas, aucun marquage suppl\u00e9mentaire de la temp\u00e9rature ambiante n'est n\u00e9cessaire. Toutefois, lorsqu'il est pr\u00e9vu que l'\u00e9quipement soit utilis\u00e9 dans un environnement situ\u00e9 en dehors de cette plage de temp\u00e9rature, il s'agit d'une situation particuli\u00e8re. Le marquage doit inclure le symbole Ta ou Tamb ainsi que les limites sup\u00e9rieure et inf\u00e9rieure de la temp\u00e9rature ambiante. Si cela n'est pas possible, le symbole \u201cX\u201d doit indiquer les conditions de fonctionnement particuli\u00e8res, y compris les limites sup\u00e9rieure et inf\u00e9rieure de la temp\u00e9rature ambiante. En d'autres termes, il n'est pas n\u00e9cessaire d'indiquer sur la plaque signal\u00e9tique ou sur le certificat antid\u00e9flagrant la temp\u00e9rature ambiante de -20 \u00e0 40 \u2103 exig\u00e9e pour l'\u00e9quipement. Mais si l'\u00e9quipement est destin\u00e9 \u00e0 \u00eatre utilis\u00e9 dans une plage de temp\u00e9ratures ambiantes diff\u00e9rente, cela doit \u00eatre indiqu\u00e9 sur la plaque signal\u00e9tique et le certificat, et sp\u00e9cifi\u00e9 dans le manuel d'utilisation.<\/p>\n\n\n\n

Quelles sont les exigences particuli\u00e8res en mati\u00e8re de temp\u00e9rature ambiante pour les \u00e9quipements \u00e9lectriques antid\u00e9flagrants et les lampes antid\u00e9flagrantes ?<\/p>\n\n\n\n

Premi\u00e8rement, les basses temp\u00e9ratures ont un impact sur la pression d'explosion, et les r\u00e9glementations correspondantes sont :<\/p>\n\n\n\n

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

Lorsque la temp\u00e9rature ambiante est inf\u00e9rieure \u00e0 -20 \u2103, la pression de r\u00e9f\u00e9rence doit \u00eatre mesur\u00e9e par des m\u00e9thodes de basse temp\u00e9rature ou de pr\u00e9-pressurisation. La pression de r\u00e9f\u00e9rence ainsi obtenue est beaucoup plus \u00e9lev\u00e9e que celle mesur\u00e9e \u00e0 temp\u00e9rature et pression normales. <\/p>\n\n\n\n

Par cons\u00e9quent, les exigences en mati\u00e8re de r\u00e9sistance pour les bo\u00eetiers des \u00e9quipements \u00e9lectriques dans les environnements \u00e0 basse temp\u00e9rature sont plus \u00e9lev\u00e9es, ce qui doit \u00eatre pris en compte lors du processus de conception.<\/p>\n\n\n\n

Deuxi\u00e8mement, l'influence de la temp\u00e9rature \u00e9lev\u00e9e sur l'essai de non-propagation de l'allumage interne et les r\u00e9glementations correspondantes :<\/p>\n\n\n\n

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

En d'autres termes, lorsque la temp\u00e9rature ambiante est sup\u00e9rieure \u00e0 60 \u2103, l'essai de non-propagation de l'allumage interne doit \u00eatre effectu\u00e9 \u00e0 haute temp\u00e9rature ou par pressurisation pr\u00e9alable. La pression d'explosion g\u00e9n\u00e9r\u00e9e de cette mani\u00e8re est plus \u00e9lev\u00e9e que dans des conditions normales de temp\u00e9rature et de pression. <\/p>\n\n\n\n

Un \u00e9quipement qui peut r\u00e9ussir l'essai \u00e0 temp\u00e9rature et pression normales peut ne pas r\u00e9ussir l'essai de non-propagation de l'allumage interne sous pr\u00e9pression. Les exigences sont donc plus \u00e9lev\u00e9es en ce qui concerne la longueur, l'espacement et la r\u00e9sistance de la surface de joint \u00e9tanche \u00e0 la flamme des \u00e9quipements \u00e9tanches \u00e0 la flamme utilis\u00e9s dans des environnements \u00e0 haute temp\u00e9rature. Ces facteurs doivent \u00eatre pris en compte lors de la conception.<\/p>","protected":false},"excerpt":{"rendered":"

explosion proof lamps Ambient temperature refers to the temperature of the air or other medium surrounding the equipment or component. Under normal circumstances, the ambient temperature for equipment operation should be -20 to 40 \u2103. In such cases, no additional ambient temperature marking is required. However, when the equipment is expected to be used in […]<\/p>\n","protected":false},"author":1,"featured_media":1617,"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-1616","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\/2025\/01\/1.png",1080,694,false],"thumbnail":["https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/01\/1-150x150.png",150,150,true],"medium":["https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/01\/1-300x193.png",300,193,true],"medium_large":["https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/01\/1-768x494.png",768,494,true],"large":["https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/01\/1-1024x658.png",1024,658,true],"1536x1536":["https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/01\/1.png",1080,694,false],"2048x2048":["https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/01\/1.png",1080,694,false],"trp-custom-language-flag":["https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/01\/1.png",18,12,false]},"uagb_author_info":{"display_name":"Joe","author_link":"https:\/\/led.amasly.com\/fr\/author\/jacklin\/"},"uagb_comment_info":0,"uagb_excerpt":"explosion proof lamps Ambient temperature refers to the temperature of the air or other medium surrounding the equipment or component. Under normal circumstances, the ambient temperature for equipment operation should be -20 to 40 \u2103. In such cases, no additional ambient temperature marking is required. However, when the equipment is expected to be used in\u2026","_links":{"self":[{"href":"https:\/\/led.amasly.com\/fr\/wp-json\/wp\/v2\/posts\/1616","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/led.amasly.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/led.amasly.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/fr\/wp-json\/wp\/v2\/comments?post=1616"}],"version-history":[{"count":2,"href":"https:\/\/led.amasly.com\/fr\/wp-json\/wp\/v2\/posts\/1616\/revisions"}],"predecessor-version":[{"id":3995,"href":"https:\/\/led.amasly.com\/fr\/wp-json\/wp\/v2\/posts\/1616\/revisions\/3995"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/fr\/wp-json\/wp\/v2\/media\/1617"}],"wp:attachment":[{"href":"https:\/\/led.amasly.com\/fr\/wp-json\/wp\/v2\/media?parent=1616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/led.amasly.com\/fr\/wp-json\/wp\/v2\/categories?post=1616"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/led.amasly.com\/fr\/wp-json\/wp\/v2\/tags?post=1616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}