{"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\/de\/light\/the-impact-of-low-temperature-on-intrinsically-safe-i-type-explosion-proof-lamps\/","title":{"rendered":"Der Einfluss von niedrigen Temperaturen auf eigensichere \u201ci\u201d-Lampen"},"content":{"rendered":"

Umgebungstemperaturen unter -20 \u2103 k\u00f6nnen die Explosionssicherheit des Ger\u00e4ts beeintr\u00e4chtigen und sollten bei der Bewertung und Pr\u00fcfung des Ger\u00e4ts ber\u00fccksichtigt werden. <\/p>\n\n\n\n

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

Bei eigensicheren Betriebsmitteln \u00e4ndern sich bei niedrigen Temperaturen die Leistungsmerkmale der in eigensicheren Betriebsmitteln verwendeten Komponenten, wie z. B. Sicherheitsbarrieren, und der funkenbegrenzten Stromversorgungen mit dynamischen eigensicheren Komponenten. Bei der Auswahl der Bauteile sollten diese \u00c4nderungen ber\u00fccksichtigt werden, und die Bewertung sollte gem\u00e4\u00df den Anforderungen der entsprechenden \u201cEigensicheren \u2018i\u2019 gesch\u00fctzten Betriebsmittel\u201d unter Verwendung der vom Hersteller angegebenen Betriebstemperatur erfolgen. Dieser Bemessungswert sollte die \u00c4nderungen im Betrieb von Halbleiterbauelementen ber\u00fccksichtigen, die sich auf die eigensichere Leistung auswirken, um die erforderliche eigensichere Funktion zu gew\u00e4hrleisten. <\/p>\n\n\n\n

Die Leistung der eigensicheren Stromversorgung mit dynamischen eigensicheren Bauelementen, die in solchen Systemen verwendet wird, h\u00e4ngt von der Umgebungstemperatur am Einsatzort ab. Bei niedrigen Temperaturen nimmt die Empfindlichkeit der dynamischen Halbleiterbauelemente des eigensicheren Netzteils ab und die Schaltzeit nimmt zu. Die entsprechenden Vorschriften sehen vor, dass die Funkenz\u00fcndpr\u00fcfung in der am st\u00e4rksten z\u00fcndgef\u00e4hrdeten Schaltungsanordnung durchgef\u00fchrt werden soll. In der Praxis werden die Pr\u00fcfungen jedoch meist bei Labortemperaturen durchgef\u00fchrt. <\/p>\n\n\n\n

Daher muss bei Systemen mit dynamischen Stromversorgungen mit eigensicherem Schutz in Bereichen mit niedrigen Temperaturen die eigensichere Leistung bei den Temperaturen innerhalb des Anwendungsbereichs, einschlie\u00dflich der niedrigsten Temperatur der dynamischen Halbleiterkomponenten, und unter der Bedingung gepr\u00fcft werden, dass das Funkenpr\u00fcfger\u00e4t an eine geeignete Last mit der h\u00f6chsten Betriebstemperatur angeschlossen ist. Halbleiterkomponenten, die bei einer Umgebungstemperatur unter -40 \u2103 eigensicher sind, erfordern m\u00f6glicherweise spezielle Heizsysteme. F\u00fcr Ger\u00e4te, die in kaltem Meeresklima eingesetzt werden, kann ein h\u00f6herer Schutzgrad als IP54 erforderlich sein, um sicherzustellen, dass Chloridablagerungen auf der Oberfl\u00e4che von Leiterplatten keine Kriechstrombildung verursachen, auch wenn die Ger\u00e4te die entsprechenden Kriechstrecken und den Comparative Tracking Index (CTI) von Isoliermaterialien einhalten.<\/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\/de\/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\/de\/wp-json\/wp\/v2\/posts\/1610","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/led.amasly.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/led.amasly.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/de\/wp-json\/wp\/v2\/comments?post=1610"}],"version-history":[{"count":1,"href":"https:\/\/led.amasly.com\/de\/wp-json\/wp\/v2\/posts\/1610\/revisions"}],"predecessor-version":[{"id":1611,"href":"https:\/\/led.amasly.com\/de\/wp-json\/wp\/v2\/posts\/1610\/revisions\/1611"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/de\/wp-json\/wp\/v2\/media\/1600"}],"wp:attachment":[{"href":"https:\/\/led.amasly.com\/de\/wp-json\/wp\/v2\/media?parent=1610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/led.amasly.com\/de\/wp-json\/wp\/v2\/categories?post=1610"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/led.amasly.com\/de\/wp-json\/wp\/v2\/tags?post=1610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}