{"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\/pt\/light\/the-impact-of-low-temperature-on-intrinsically-safe-i-type-explosion-proof-lamps\/","title":{"rendered":"O impacto da baixa temperatura nas l\u00e2mpadas de seguran\u00e7a intr\u00ednseca do tipo \u201ci\u201d \u00e0 prova de explos\u00e3o"},"content":{"rendered":"<p class=\"has-medium-font-size wp-block-paragraph\">As temperaturas ambiente inferiores a -20 \u2103 podem afetar o tipo de prote\u00e7\u00e3o antideflagrante do equipamento e devem ser tidas em conta durante a avalia\u00e7\u00e3o e os ensaios do equipamento. <\/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\/pt\/\" 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=\"Luzes \u00e0 prova de explos\u00e3o\" loading=\"lazy\" role=\"img\"><\/a><\/figure><\/div>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Para equipamentos intrinsecamente seguros, a baixas temperaturas, as carater\u00edsticas de desempenho dos componentes utilizados em equipamentos intrinsecamente seguros, tais como barreiras de seguran\u00e7a, e as fontes de alimenta\u00e7\u00e3o limitadas por fa\u00edscas com componentes din\u00e2micos intrinsecamente seguros ir\u00e3o mudar. Ao selecionar os componentes, estas altera\u00e7\u00f5es devem ser tidas em conta e a avalia\u00e7\u00e3o deve ser realizada de acordo com os requisitos do \u201cEquipamento Intrinsecamente Seguro \u2018i\u2019 Protegido\u201d correspondente, utilizando a temperatura de funcionamento especificada pelo fabricante. Este valor nominal deve ter em conta as altera\u00e7\u00f5es no funcionamento dos componentes semicondutores que afectam o desempenho intrinsecamente seguro para fornecer a fun\u00e7\u00e3o intrinsecamente segura necess\u00e1ria. <\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">O desempenho de seguran\u00e7a intr\u00ednseca da fonte de alimenta\u00e7\u00e3o com componentes din\u00e2micos intrinsecamente seguros utilizados em tais sistemas depende da temperatura ambiente do local de aplica\u00e7\u00e3o. A baixas temperaturas, a sensibilidade dos componentes din\u00e2micos semicondutores da fonte de alimenta\u00e7\u00e3o intrinsecamente segura diminui e o tempo de comuta\u00e7\u00e3o aumenta. Os regulamentos correspondentes estipulam que o teste de igni\u00e7\u00e3o por fa\u00edsca deve ser realizado no arranjo de circuito que \u00e9 mais propenso \u00e0 igni\u00e7\u00e3o. No entanto, na pr\u00e1tica, os testes s\u00e3o geralmente efectuados a temperaturas de laborat\u00f3rio. <\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Por conseguinte, para sistemas com fontes de alimenta\u00e7\u00e3o de prote\u00e7\u00e3o intrinsecamente segura de natureza din\u00e2mica em \u00e1reas que envolvem baixas temperaturas, o desempenho intrinsecamente seguro tem de ser testado \u00e0s temperaturas dentro da gama de aplica\u00e7\u00e3o, incluindo a temperatura mais baixa dos componentes din\u00e2micos de semicondutores, e sob a condi\u00e7\u00e3o de que o dispositivo de teste de fa\u00edscas esteja ligado a uma carga adequada \u00e0 temperatura de funcionamento mais elevada. Os componentes semicondutores que fornecem prote\u00e7\u00e3o intrinsecamente segura a uma temperatura ambiente inferior a -40 \u2103 podem exigir sistemas de aquecimento especiais. Para equipamento utilizado em climas mar\u00edtimos frios, embora o equipamento cumpra a dist\u00e2ncia de fuga correspondente e o \u00cdndice de Rastreio Comparativo (CTI) dos materiais isolantes, pode ser necess\u00e1rio um n\u00edvel de prote\u00e7\u00e3o superior a IP54 para garantir que os dep\u00f3sitos de cloreto na superf\u00edcie das placas de circuito impresso n\u00e3o causam rastreio.<\/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":"","_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","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\/pt\/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\/pt\/wp-json\/wp\/v2\/posts\/1610","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/led.amasly.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/led.amasly.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/pt\/wp-json\/wp\/v2\/comments?post=1610"}],"version-history":[{"count":1,"href":"https:\/\/led.amasly.com\/pt\/wp-json\/wp\/v2\/posts\/1610\/revisions"}],"predecessor-version":[{"id":1611,"href":"https:\/\/led.amasly.com\/pt\/wp-json\/wp\/v2\/posts\/1610\/revisions\/1611"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/pt\/wp-json\/wp\/v2\/media\/1600"}],"wp:attachment":[{"href":"https:\/\/led.amasly.com\/pt\/wp-json\/wp\/v2\/media?parent=1610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/led.amasly.com\/pt\/wp-json\/wp\/v2\/categories?post=1610"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/led.amasly.com\/pt\/wp-json\/wp\/v2\/tags?post=1610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}