{"id":1610,"date":"2024-12-30T22:33:12","date_gmt":"2024-12-30T14:33:12","guid":{"rendered":"https:\/\/led.amasly.com\/?p=1610"},"modified":"2024-12-30T22:34:14","modified_gmt":"2024-12-30T14:34:14","slug":"the-impact-of-low-temperature-on-intrinsically-safe-i-type-explosion-proof-lamps","status":"publish","type":"post","link":"https:\/\/led.amasly.com\/da\/light\/the-impact-of-low-temperature-on-intrinsically-safe-i-type-explosion-proof-lamps\/","title":{"rendered":"Indvirkningen af lav temperatur p\u00e5 eksplosionssikre lamper af typen \u201ci\u201d i egenskab af sikkerhed"},"content":{"rendered":"<p class=\"has-medium-font-size\">Omgivelsestemperaturer under -20 \u00b0C kan p\u00e5virke udstyrets eksplosionssikre type og b\u00f8r tages i betragtning under evaluering og test af udstyret. <\/p>\n\n\n\n<div class=\"wp-block-uagb-image uagb-block-55316f07 wp-block-uagb-image--layout-default wp-block-uagb-image--effect-static wp-block-uagb-image--align-none\"><figure class=\"wp-block-uagb-image__figure\"><a class=\"\" href=\"https:\/\/led.amasly.com\/da\/\" target=\"\" rel=\"noopener\"><img decoding=\"async\" srcset=\"https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-lights.jpg ,https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-lights.jpg 780w, https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-lights.jpg 360w\" sizes=\"auto, (max-width: 480px) 150px\" src=\"https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-lights.jpg\" alt=\"\" class=\"uag-image-1600\" width=\"1008\" height=\"341\" title=\"Eksplosionssikre lamper\" loading=\"lazy\" role=\"img\"><\/a><\/figure><\/div>\n\n\n\n<p class=\"has-medium-font-size\">For egensikkert udstyr \u00e6ndres ydelsesegenskaberne ved lave temperaturer for komponenter, der anvendes i egensikkert udstyr, s\u00e5som sikkerhedsbarrierer og gnistbegr\u00e6nsede str\u00f8mforsyninger med dynamiske egensikre komponenter. Ved valg af komponenter skal der tages h\u00f8jde for disse \u00e6ndringer, og evalueringen skal udf\u00f8res i overensstemmelse med kravene i det tilsvarende \u201cEgensikkert \u2018i\u2019-beskyttet udstyr\u201d ved hj\u00e6lp af den driftstemperatur, der er angivet af producenten. Denne nominelle v\u00e6rdi skal tage h\u00f8jde for \u00e6ndringerne i driften af halvlederkomponenter, der p\u00e5virker den egensikre ydeevne for at give den kr\u00e6vede egensikre funktion. <\/p>\n\n\n\n<p class=\"has-medium-font-size\">Egensikkerheden for str\u00f8mforsyningen med dynamiske egensikre komponenter, der bruges i s\u00e5danne systemer, afh\u00e6nger af den omgivende temperatur p\u00e5 anvendelsesstedet. Ved lave temperaturer falder f\u00f8lsomheden for de dynamiske halvlederkomponenter i den egensikre str\u00f8mforsyning, og koblingstiden \u00f8ges. De tilsvarende regler foreskriver, at gnistt\u00e6ndingstesten skal udf\u00f8res i det kredsl\u00f8bsarrangement, der er mest tilb\u00f8jeligt til at blive ant\u00e6ndt. I praksis udf\u00f8res testene dog normalt ved laboratorietemperaturer. <\/p>\n\n\n\n<p class=\"has-medium-font-size\">For systemer med egensikre str\u00f8mforsyninger af dynamisk karakter i omr\u00e5der med lave temperaturer skal den egensikre ydeevne derfor testes ved temperaturer inden for anvendelsesomr\u00e5det, herunder den laveste temperatur for de dynamiske halvlederkomponenter, og under foruds\u00e6tning af, at gnisttestenheden er tilsluttet en passende belastning ved den h\u00f8jeste driftstemperatur. Halvlederkomponenter, der giver egensikker beskyttelse i en omgivelsestemperatur under -40 \u00b0C, kan kr\u00e6ve s\u00e6rlige varmesystemer. For udstyr, der bruges i kolde havklimaer, kan det v\u00e6re n\u00f8dvendigt med et beskyttelsesniveau h\u00f8jere end IP54 for at sikre, at kloridaflejringer p\u00e5 overfladen af printkort ikke for\u00e5rsager sporing, selvom udstyret overholder den tilsvarende krybeafstand og det sammenlignende sporingsindeks (CTI) for isolerende materialer.<\/p>","protected":false},"excerpt":{"rendered":"<p>Ambient temperatures below -20 \u2103 may affect the explosion-proof type of the equipment, and should be taken into account during equipment evaluation and testing. For intrinsically safe equipment, at low temperatures, the performance characteristics of components used in intrinsically safe equipment, such as safety barriers, and the spark-limited power supplies with dynamic intrinsically safe components [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1600,"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":[7],"tags":[],"class_list":["post-1610","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-light"],"uagb_featured_image_src":{"full":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-lights.jpg",1008,341,false],"thumbnail":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-lights-150x150.jpg",150,150,true],"medium":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-lights-300x101.jpg",300,101,true],"medium_large":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-lights-768x260.jpg",768,260,true],"large":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-lights.jpg",1008,341,false],"1536x1536":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-lights.jpg",1008,341,false],"2048x2048":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-lights.jpg",1008,341,false],"trp-custom-language-flag":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-lights.jpg",18,6,false]},"uagb_author_info":{"display_name":"Joe","author_link":"https:\/\/led.amasly.com\/da\/author\/jacklin\/"},"uagb_comment_info":0,"uagb_excerpt":"Ambient temperatures below -20 \u2103 may affect the explosion-proof type of the equipment, and should be taken into account during equipment evaluation and testing. For intrinsically safe equipment, at low temperatures, the performance characteristics of components used in intrinsically safe equipment, such as safety barriers, and the spark-limited power supplies with dynamic intrinsically safe components&hellip;","_links":{"self":[{"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/posts\/1610","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/comments?post=1610"}],"version-history":[{"count":1,"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/posts\/1610\/revisions"}],"predecessor-version":[{"id":1611,"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/posts\/1610\/revisions\/1611"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/media\/1600"}],"wp:attachment":[{"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/media?parent=1610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/categories?post=1610"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/tags?post=1610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}