{"id":1602,"date":"2024-12-29T15:26:42","date_gmt":"2024-12-29T07:26:42","guid":{"rendered":"https:\/\/led.amasly.com\/?p=1602"},"modified":"2024-12-29T15:27:24","modified_gmt":"2024-12-29T07:27:24","slug":"krav-til-pakninger-og-taetninger-i-udstyr-der-er-beskyttet-af-stovtaendingssikre-kabinetter-t-til-eksplosionssikre-lamper","status":"publish","type":"post","link":"https:\/\/led.amasly.com\/da\/eksplosionssikkert-udstyr\/krav-til-pakninger-og-taetninger-i-udstyr-der-er-beskyttet-af-stovtaendingssikre-kabinetter-t-til-eksplosionssikre-lamper\/","title":{"rendered":"Krav til pakninger og t\u00e6tninger i udstyr, der er beskyttet af st\u00f8vt\u00e6ndingssikre kabinetter \u201ct\u201d til eksplosionssikre lamper"},"content":{"rendered":"

Det er velkendt, at beskyttelsesevnen for det udstyrskabinet, der er beskyttet af det st\u00f8vt\u00e6tte, t\u00e6ndingssikre kabinet \u201ct\u201d, er et n\u00f8glepunkt, som produktdesignet fokuserer p\u00e5. Derfor er den strukturelle rationalitet af de pakninger og t\u00e6tninger, der spiller en beskyttende rolle, s\u00e6rlig vigtig. <\/p>\n\n\n\n

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

I. Strukturelle krav <\/p>\n\n\n\n

I parringsfladerne kan der anvendes komprimerede pakninger for at sikre en effektiv t\u00e6tning af skabet. Alle pakninger og t\u00e6tninger skal v\u00e6re af en integreret kontinuerlig struktur, dvs. ringformede og uafbrudte. Skabets struktur skal sikre den korrekte placering af pakningerne. <\/p>\n\n\n\n

Hvis skabets beskyttelsesgrad afh\u00e6nger af pakningen ved skabets samling, og samlingen skal \u00e5bnes under installation eller vedligeholdelse, skal pakningen kl\u00e6bes eller fastg\u00f8res mekanisk til en af parringsfladerne for at forhindre tab, beskadigelse eller forkert installation. Samlingsfladerne, der bruger pakninger, b\u00f8r ikke bruge yderligere t\u00e6tningsmaterialer som et ekstra middel til t\u00e6tning. <\/p>\n\n\n\n

H\u00e6ngsler b\u00f8r ikke bruges som middel til at opretholde forseglingen, undtagen i tilf\u00e6lde, hvor pakningen kan komprimeres korrekt uden at for\u00e5rsage uventet bev\u00e6gelse, stress eller deformation af pakningen. <\/p>\n\n\n\n

Fleksible t\u00e6tninger, som f.eks. b\u00e6lge, b\u00f8r ikke uds\u00e6ttes for overdreven belastning p\u00e5 noget tidspunkt. Der skal tr\u00e6ffes foranstaltninger for at forhindre ekstern mekanisk skade, og hver ende skal v\u00e6re mekanisk fastgjort. <\/p>\n\n\n\n

Bem\u00e6rk: Ovenst\u00e5ende krav g\u00e6lder ikke for t\u00e6tningerne i kabelindf\u00f8ringsanordningen. <\/p>\n\n\n\n

II. Krav til test <\/p>\n\n\n\n

Efter udf\u00f8relse af skaltest i overensstemmelse med de tilsvarende krav skal der udf\u00f8res tryktest p\u00e5 alle testpr\u00f8ver efterfulgt af test af IP-beskyttelsesgrad. <\/p>\n\n\n\n

Standarden for \u201cEquipment Protected by Dust Ignition-Proof Enclosures \u2018t'\u201d i eksplosive milj\u00f8er har tilf\u00f8jet et krav om tryktest for at vurdere den beskyttende effekt af pakninger og t\u00e6tninger. Specifikt skal det indvendige tryk v\u00e6re mindst (4 \u00b1 0,4) kPa (for beskyttelsesniveau \u2018ta\u2019) og (2 \u00b1 0,2) kPa (for beskyttelsesniveau \u2018tb\u2019 og \u2018tc\u2019), som varer i 60 til 70 sekunder. <\/p>\n\n\n\n

Det skal bem\u00e6rkes her, at:<\/p>\n\n\n\n

(a) Kabelindf\u00f8ringsanordningen og yderligere indkapslinger af Ex-udstyr beh\u00f8ver ikke at gennemg\u00e5 trykpr\u00f8ver, bortset fra den t\u00e6tningspakning, der giver beskyttelse ved installationsfugen p\u00e5 indf\u00f8ringsanordningen og indkapslingen; <\/p>\n\n\n\n

(b) Hvis Ex-udstyrets struktur kan begr\u00e6nse bev\u00e6gelsen af pakninger og t\u00e6tninger, s\u00e5som \u201cO\u201d-ringe i riller eller t\u00e6tningslister, der er kl\u00e6bet til den ene side af forbindelsesoverfladen, er trykpr\u00f8vninger ikke p\u00e5kr\u00e6vet for Ex-udstyr med \u201ctb\u201d- og \u201ctc\u201d-beskyttelsesniveauer.<\/p>","protected":false},"excerpt":{"rendered":"

It is well known that the protective performance of the equipment enclosure protected by the dust-proof ignition-proof enclosure “t” is a key point that product design focuses on. Therefore, the structural rationality of the gaskets and seals that play a protective role is particularly important. I. Structural Requirements In the mating surfaces, compressed gaskets can […]<\/p>\n","protected":false},"author":1,"featured_media":1603,"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":[8],"tags":[],"class_list":["post-1602","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-explosion-proof-equipment"],"uagb_featured_image_src":{"full":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-junction-box.jpg",995,395,false],"thumbnail":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-junction-box-150x150.jpg",150,150,true],"medium":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-junction-box-300x119.jpg",300,119,true],"medium_large":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-junction-box-768x305.jpg",768,305,true],"large":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-junction-box.jpg",995,395,false],"1536x1536":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-junction-box.jpg",995,395,false],"2048x2048":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-junction-box.jpg",995,395,false],"trp-custom-language-flag":["https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-junction-box.jpg",18,7,false]},"uagb_author_info":{"display_name":"Joe","author_link":"https:\/\/led.amasly.com\/da\/author\/jacklin\/"},"uagb_comment_info":0,"uagb_excerpt":"It is well known that the protective performance of the equipment enclosure protected by the dust-proof ignition-proof enclosure “t” is a key point that product design focuses on. Therefore, the structural rationality of the gaskets and seals that play a protective role is particularly important. I. Structural Requirements In the mating surfaces, compressed gaskets can…","_links":{"self":[{"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/posts\/1602","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=1602"}],"version-history":[{"count":1,"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/posts\/1602\/revisions"}],"predecessor-version":[{"id":1604,"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/posts\/1602\/revisions\/1604"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/media\/1603"}],"wp:attachment":[{"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/media?parent=1602"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/categories?post=1602"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/led.amasly.com\/da\/wp-json\/wp\/v2\/tags?post=1602"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}