![\"\"](\"https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-lights.jpg\" "\\"Sv\u011btla")
<\/a><\/figure><\/div>\n\n\n\nU jiskrov\u011b bezpe\u010dn\u00fdch za\u0159\u00edzen\u00ed se p\u0159i n\u00edzk\u00fdch teplot\u00e1ch zm\u011bn\u00ed v\u00fdkonnostn\u00ed charakteristiky sou\u010d\u00e1st\u00ed pou\u017e\u00edvan\u00fdch v jiskrov\u011b bezpe\u010dn\u00fdch za\u0159\u00edzen\u00edch, jako jsou bezpe\u010dnostn\u00ed bari\u00e9ry, a jiskrov\u011b omezen\u00e9 zdroje nap\u00e1jen\u00ed s dynamick\u00fdmi jiskrov\u011b bezpe\u010dn\u00fdmi sou\u010d\u00e1stmi. P\u0159i v\u00fdb\u011bru sou\u010d\u00e1st\u00ed je t\u0159eba tyto zm\u011bny zohlednit a vyhodnocen\u00ed prov\u00e9st v souladu s po\u017eadavky p\u0159\u00edslu\u0161n\u00e9ho \u201cJiskrov\u011b bezpe\u010dn\u00e9ho za\u0159\u00edzen\u00ed s ochranou \u2018i\u2019\u201d s pou\u017eit\u00edm provozn\u00ed teploty stanoven\u00e9 v\u00fdrobcem. Tato jmenovit\u00e1 hodnota by m\u011bla zohlednit zm\u011bny v provozu polovodi\u010dov\u00fdch sou\u010d\u00e1stek, kter\u00e9 ovliv\u0148uj\u00ed jiskrov\u011b bezpe\u010dnou funkci, aby byla zaji\u0161t\u011bna po\u017eadovan\u00e1 jiskrov\u011b bezpe\u010dn\u00e1 funkce. <\/p>\n\n\n\n
Jiskrov\u00e1 bezpe\u010dnost nap\u00e1jec\u00edho zdroje s dynamick\u00fdmi jiskrov\u011b bezpe\u010dn\u00fdmi sou\u010d\u00e1stmi pou\u017e\u00edvan\u00e9ho v takov\u00fdch syst\u00e9mech z\u00e1vis\u00ed na okoln\u00ed teplot\u011b v m\u00edst\u011b pou\u017eit\u00ed. P\u0159i n\u00edzk\u00fdch teplot\u00e1ch se citlivost dynamick\u00fdch polovodi\u010dov\u00fdch sou\u010d\u00e1stek jiskrov\u011b bezpe\u010dn\u00e9ho zdroje sni\u017euje a doba sp\u00edn\u00e1n\u00ed se prodlu\u017euje. P\u0159\u00edslu\u0161n\u00e9 p\u0159edpisy stanov\u00ed, \u017ee zkou\u0161ka jiskrov\u00e9ho vzn\u00edcen\u00ed by m\u011bla b\u00fdt provedena v uspo\u0159\u00e1d\u00e1n\u00ed obvodu, kter\u00e9 je nejv\u00edce n\u00e1chyln\u00e9 ke vzn\u00edcen\u00ed. V praxi se v\u0161ak zkou\u0161ky obvykle prov\u00e1d\u011bj\u00ed p\u0159i laboratorn\u00edch teplot\u00e1ch. <\/p>\n\n\n\n
U syst\u00e9m\u016f s jiskrov\u011b bezpe\u010dn\u00fdmi ochrann\u00fdmi zdroji nap\u00e1jen\u00ed dynamick\u00e9 povahy v oblastech s n\u00edzk\u00fdmi teplotami je proto t\u0159eba zkou\u0161et jiskrov\u011b bezpe\u010dnou funk\u010dnost p\u0159i teplot\u00e1ch v rozsahu pou\u017eit\u00ed, v\u010detn\u011b nejni\u017e\u0161\u00ed teploty dynamick\u00fdch polovodi\u010dov\u00fdch sou\u010d\u00e1stek, a za podm\u00ednky, \u017ee je jiskrov\u00e9 zku\u0161ebn\u00ed za\u0159\u00edzen\u00ed p\u0159ipojeno k vhodn\u00e9 z\u00e1t\u011b\u017ei p\u0159i nejvy\u0161\u0161\u00ed provozn\u00ed teplot\u011b. Polovodi\u010dov\u00e9 sou\u010d\u00e1stky zaji\u0161\u0165uj\u00edc\u00ed jiskrov\u011b bezpe\u010dnou ochranu p\u0159i okoln\u00ed teplot\u011b ni\u017e\u0161\u00ed ne\u017e -40 \u2103 mohou vy\u017eadovat speci\u00e1ln\u00ed oh\u0159\u00edvac\u00ed syst\u00e9my. U za\u0159\u00edzen\u00ed pou\u017e\u00edvan\u00fdch v chladn\u00e9m mo\u0159sk\u00e9m podneb\u00ed, p\u0159esto\u017ee za\u0159\u00edzen\u00ed spl\u0148uje odpov\u00eddaj\u00edc\u00ed plazivou vzd\u00e1lenost a srovn\u00e1vac\u00ed index sledov\u00e1n\u00ed (CTI) izola\u010dn\u00edch materi\u00e1l\u016f, m\u016f\u017ee b\u00fdt vy\u017eadov\u00e1n vy\u0161\u0161\u00ed stupe\u0148 ochrany ne\u017e IP54, aby se zajistilo, \u017ee chloridov\u00e9 usazeniny na povrchu desek s plo\u0161n\u00fdmi spoji nezp\u016fsob\u00ed sledov\u00e1n\u00ed.<\/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\/cs\/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\/cs\/wp-json\/wp\/v2\/posts\/1610","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/led.amasly.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/led.amasly.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/cs\/wp-json\/wp\/v2\/comments?post=1610"}],"version-history":[{"count":1,"href":"https:\/\/led.amasly.com\/cs\/wp-json\/wp\/v2\/posts\/1610\/revisions"}],"predecessor-version":[{"id":1611,"href":"https:\/\/led.amasly.com\/cs\/wp-json\/wp\/v2\/posts\/1610\/revisions\/1611"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/cs\/wp-json\/wp\/v2\/media\/1600"}],"wp:attachment":[{"href":"https:\/\/led.amasly.com\/cs\/wp-json\/wp\/v2\/media?parent=1610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/led.amasly.com\/cs\/wp-json\/wp\/v2\/categories?post=1610"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/led.amasly.com\/cs\/wp-json\/wp\/v2\/tags?post=1610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}