![\"\"](\"https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-lights.jpg\" "\\"Luces")
<\/a><\/figure><\/div>\n\n\n\nPara los equipos intr\u00ednsecamente seguros, a bajas temperaturas cambiar\u00e1n las caracter\u00edsticas de funcionamiento de los componentes utilizados en los equipos intr\u00ednsecamente seguros, como las barreras de seguridad, y las fuentes de alimentaci\u00f3n limitadas por chispas con componentes din\u00e1micos intr\u00ednsecamente seguros. A la hora de seleccionar los componentes, deben tenerse en cuenta estos cambios, y la evaluaci\u00f3n debe realizarse de acuerdo con los requisitos de los \u201cEquipos protegidos con seguridad intr\u00ednseca \u2018i\u2019\u201d correspondientes, utilizando la temperatura de funcionamiento especificada por el fabricante. Este valor nominal debe tener en cuenta los cambios en el funcionamiento de los componentes semiconductores que afectan al rendimiento intr\u00ednsecamente seguro para proporcionar la funci\u00f3n intr\u00ednsecamente segura requerida. <\/p>\n\n\n\n
Las prestaciones de seguridad intr\u00ednseca de la fuente de alimentaci\u00f3n con componentes din\u00e1micos de seguridad intr\u00ednseca utilizada en tales sistemas dependen de la temperatura ambiente del lugar de aplicaci\u00f3n. A bajas temperaturas, la sensibilidad de los componentes semiconductores din\u00e1micos de la fuente de alimentaci\u00f3n de seguridad intr\u00ednseca disminuye y el tiempo de conmutaci\u00f3n aumenta. La normativa correspondiente estipula que la prueba de encendido por chispa debe realizarse en la disposici\u00f3n del circuito m\u00e1s propensa a la ignici\u00f3n. Sin embargo, en la pr\u00e1ctica, las pruebas suelen realizarse a temperaturas de laboratorio. <\/p>\n\n\n\n
Por lo tanto, para los sistemas con fuentes de alimentaci\u00f3n de protecci\u00f3n intr\u00ednsecamente segura de naturaleza din\u00e1mica en \u00e1reas que implican bajas temperaturas, el rendimiento intr\u00ednsecamente seguro necesita ser probado a las temperaturas dentro del rango de aplicaci\u00f3n, incluyendo la temperatura m\u00e1s baja de los componentes semiconductores din\u00e1micos, y bajo la condici\u00f3n de que el dispositivo de prueba de chispa est\u00e1 conectado a una carga adecuada a la temperatura de funcionamiento m\u00e1s alta. Los componentes semiconductores que proporcionan una protecci\u00f3n intr\u00ednsecamente segura a una temperatura ambiente inferior a -40 \u2103 pueden requerir sistemas de calefacci\u00f3n especiales. Para los equipos utilizados en climas marinos fr\u00edos, aunque el equipo cumpla con la distancia de fuga correspondiente y el \u00cdndice de Seguimiento Comparativo (CTI) de los materiales aislantes, puede ser necesario un nivel de protecci\u00f3n superior a IP54 para garantizar que los dep\u00f3sitos de cloruro en la superficie de las placas de circuitos impresos no causen seguimiento.<\/p>","protected":false},"excerpt":{"rendered":"
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 […]<\/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\/es\/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…","_links":{"self":[{"href":"https:\/\/led.amasly.com\/es\/wp-json\/wp\/v2\/posts\/1610","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/led.amasly.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/led.amasly.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/es\/wp-json\/wp\/v2\/comments?post=1610"}],"version-history":[{"count":1,"href":"https:\/\/led.amasly.com\/es\/wp-json\/wp\/v2\/posts\/1610\/revisions"}],"predecessor-version":[{"id":1611,"href":"https:\/\/led.amasly.com\/es\/wp-json\/wp\/v2\/posts\/1610\/revisions\/1611"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/es\/wp-json\/wp\/v2\/media\/1600"}],"wp:attachment":[{"href":"https:\/\/led.amasly.com\/es\/wp-json\/wp\/v2\/media?parent=1610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/led.amasly.com\/es\/wp-json\/wp\/v2\/categories?post=1610"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/led.amasly.com\/es\/wp-json\/wp\/v2\/tags?post=1610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}