![\"\"](\"https:\/\/led.amasly.com\/wp-content\/uploads\/2024\/12\/Explosion-proof-junction-box.jpg\" "\\"Nev\u00fdbu\u0161n\u00e1")
<\/figure><\/div>\n\n\n\nI. Po\u017eiadavky na kon\u0161trukciu <\/p>\n\n\n\n
V sty\u010dn\u00fdch ploch\u00e1ch sa m\u00f4\u017eu pou\u017ei\u0165 stla\u010den\u00e9 tesnenia, aby sa zabezpe\u010dila \u00fa\u010dinnos\u0165 tesnenia krytu. V\u0161etky tesnenia a tesnenia by mali ma\u0165 celistv\u00fa s\u00favisl\u00fa \u0161trukt\u00faru, t. j. prstencov\u00fa a nepreru\u0161ovan\u00fa. \u0160trukt\u00fara skrine by mala zabezpe\u010di\u0165 spr\u00e1vnu polohu tesnen\u00ed. <\/p>\n\n\n\n
Ak stupe\u0148 ochrany krytu z\u00e1vis\u00ed od tesnenia v spoji krytu a spoj je potrebn\u00e9 po\u010das in\u0161tal\u00e1cie alebo \u00fadr\u017eby otvori\u0165, tesnenie by malo by\u0165 prilepen\u00e9 alebo mechanicky upevnen\u00e9 na jednom z l\u00edcuj\u00facich povrchov, aby sa zabr\u00e1nilo strate, po\u0161kodeniu alebo nespr\u00e1vnej in\u0161tal\u00e1cii. Na sp\u00e1jaj\u00facich sa povrchoch, na ktor\u00fdch sa pou\u017e\u00edvaj\u00fa tesnenia, by sa nemali pou\u017e\u00edva\u0165 \u010fal\u0161ie tesniace materi\u00e1ly ako pomocn\u00e9 prostriedky na zabezpe\u010denie tesniaceho v\u00fdkonu. <\/p>\n\n\n\n
Z\u00e1vesy by sa nemali pou\u017e\u00edva\u0165 ako prostriedok na udr\u017eanie tesnenia, okrem pr\u00edpadov, ke\u010f je mo\u017en\u00e9 tesnenie riadne stla\u010di\u0165 bez toho, aby do\u0161lo k neo\u010dak\u00e1van\u00e9mu pohybu, nam\u00e1haniu alebo deform\u00e1cii tesnenia. <\/p>\n\n\n\n
Pru\u017en\u00e9 tesnenia, ako s\u00fa napr\u00edklad vlnovce, by nemali by\u0165 v \u017eiadnom bode vystaven\u00e9 nadmern\u00e9mu nam\u00e1haniu. Mali by sa prija\u0165 opatrenia na zabr\u00e1nenie vonkaj\u0161iemu mechanick\u00e9mu po\u0161kodeniu a ka\u017ed\u00fd koniec by mal by\u0165 mechanicky upevnen\u00fd. <\/p>\n\n\n\n
Pozn\u00e1mka: Vy\u0161\u0161ie uveden\u00e9 po\u017eiadavky sa nevz\u0165ahuj\u00fa na tesnenia vo vn\u00fatri zariadenia na vstup k\u00e1bla. <\/p>\n\n\n\n
II. Po\u017eiadavky na testovanie <\/p>\n\n\n\n
Po vykonan\u00ed sk\u00fa\u0161ok pl\u00e1\u0161\u0165a v s\u00falade s pr\u00edslu\u0161n\u00fdmi po\u017eiadavkami by sa na v\u0161etk\u00fdch sk\u00fa\u0161obn\u00fdch vzork\u00e1ch mali vykona\u0165 tlakov\u00e9 sk\u00fa\u0161ky a n\u00e1sledne sk\u00fa\u0161ky stup\u0148a ochrany IP. <\/p>\n\n\n\n
Do normy pre \u201cZariadenia chr\u00e1nen\u00e9 prachotesn\u00fdmi skri\u0148ami \u2018t'\u201d vo v\u00fdbu\u0161nom prostred\u00ed bola pridan\u00e1 po\u017eiadavka na tlakov\u00fa sk\u00fa\u0161ku na pos\u00fadenie ochrann\u00e9ho \u00fa\u010dinku tesnen\u00ed a uz\u00e1verov. Konkr\u00e9tne by mal by\u0165 vn\u00fatorn\u00fd tlak najmenej (4 \u00b1 0,4) kPa (pre stupe\u0148 ochrany \u2018ta\u2019) a (2 \u00b1 0,2) kPa (pre stupne ochrany \u2018tb\u2019 a \u2018tc\u2019), ktor\u00fd trv\u00e1 60 a\u017e 70 sek\u00fand. <\/p>\n\n\n\n
Tu je potrebn\u00e9 poznamena\u0165, \u017ee:<\/p>\n\n\n\n
(a) Zariadenie na zav\u00e1dzanie k\u00e1blov a pr\u00eddavn\u00e9 kryty Ex zariadenia sa nemusia podrobi\u0165 tlakov\u00fdm sk\u00fa\u0161kam, s v\u00fdnimkou tesniaceho tesnenia, ktor\u00e9 zabezpe\u010duje ochranu na povrchu in\u0161tala\u010dn\u00e9ho spoja zariadenia na zav\u00e1dzanie k\u00e1blov a krytu; <\/p>\n\n\n\n
(b) Ak kon\u0161trukcia Ex zariadenia m\u00f4\u017ee obmedzi\u0165 pohyb tesnen\u00ed a uz\u00e1verov, ako s\u00fa \u201cO\u201d kr\u00fa\u017eky v dr\u00e1\u017ekach alebo tesniace tesnenia prilepen\u00e9 na jednej strane povrchu spoja, tlakov\u00e9 sk\u00fa\u0161ky sa nevy\u017eaduj\u00fa pre Ex zariadenie s \u00farov\u0148ou ochrany \u201ctb\u201d a \u201ctc\u201d.<\/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\/sk\/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\/sk\/wp-json\/wp\/v2\/posts\/1602","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/comments?post=1602"}],"version-history":[{"count":1,"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/posts\/1602\/revisions"}],"predecessor-version":[{"id":1604,"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/posts\/1602\/revisions\/1604"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/media\/1603"}],"wp:attachment":[{"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/media?parent=1602"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/categories?post=1602"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/tags?post=1602"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}