{"id":2147,"date":"2025-03-02T16:05:53","date_gmt":"2025-03-02T08:05:53","guid":{"rendered":"https:\/\/led.amasly.com\/?p=2147"},"modified":"2025-03-06T23:07:12","modified_gmt":"2025-03-06T15:07:12","slug":"uvod-a-pouzitie-rozvodnej-skrine-odolnej-proti-vybuchu","status":"publish","type":"post","link":"https:\/\/led.amasly.com\/sk\/zariadenia-odolne-proti-vybuchu\/uvod-a-pouzitie-rozvodnej-skrine-odolnej-proti-vybuchu\/","title":{"rendered":"Zavedenie a pou\u017eitie rozvodnej skrine odolnej proti v\u00fdbuchu"},"content":{"rendered":"

Zavedenie a pou\u017eitie nev\u00fdbu\u0161nej rozvodnej skrine<\/strong><\/strong><\/h1>\n\n\n\n

Nev\u00fdbu\u0161n\u00e1 spojovacia skrinka <\/strong><\/strong><\/h2>\n\n\n\n
\"\"<\/a><\/figure><\/div>\n\n\n\n

V priemyseln\u00fdch odvetviach, ako je ropn\u00fd, chemick\u00fd, uho\u013en\u00fd a metalurgick\u00fd priemysel, sa vo v\u00fdrobnom re\u0165azci \u010dasto vyskytuj\u00fa hor\u013eav\u00e9 plyny alebo prach, ktor\u00e9 predstavuj\u00fa hor\u013eav\u00e9, v\u00fdbu\u0161n\u00e9 a pra\u0161n\u00e9 prostredie. Be\u017en\u00e9 elektrick\u00e9 zariadenia v prev\u00e1dzkovom procese v pr\u00edpade elektrickej iskry nevyhnutne sp\u00f4sobia horenie alebo v\u00fdbuch, \u010do m\u00e1 za n\u00e1sledok zna\u010dn\u00e9 obete a materi\u00e1lne \u0161kody. Ako mo\u017eno v t\u00fdchto prostrediach bezpe\u010dne pou\u017e\u00edva\u0165 elektrick\u00e9 zariadenia? Vznikli nev\u00fdbu\u0161n\u00e9 v\u00fdrobky, nev\u00fdbu\u0161n\u00e1 skrinka je ve\u013emi d\u00f4le\u017eit\u00fd elektrotechnick\u00fd v\u00fdrobok, ktor\u00fd okrem toho, \u017ee zabra\u0148uje po\u017eiaru alebo v\u00fdbuchu, ale aj zabra\u0148uje vnikaniu prachu, vlhkosti, dymu a in\u00fdch \u0161kodliv\u00edn.<\/p>\n\n\n\n

V porovnan\u00ed s civilnou rozvodnou skri\u0148ou sa nev\u00fdbu\u0161n\u00e1 rozvodn\u00e1 skri\u0148a men\u00ed na elektroin\u0161tala\u010dn\u00fa skri\u0148u s nev\u00fdbu\u0161nou funkciou. Pou\u017e\u00edvan\u00e9 elektrick\u00e9 zariadenie mus\u00ed by\u0165 prepojen\u00e9 vodi\u010dom alebo k\u00e1blom a nap\u00e1jacou sie\u0165ou, aby sa vytvoril syst\u00e9m na dokon\u010denie pou\u017e\u00edvania jeho funkcie; ale pripojovac\u00ed vodi\u010d alebo k\u00e1bel nem\u00f4\u017ee by\u0165 nekone\u010dne dlh\u00fd a v procese pripojenia je potrebn\u00e9 pripoji\u0165 mnoho miest s\u00e9riovo, paralelne pre odbo\u010dku vodi\u010da. To nevyhnutne sp\u00f4sob\u00ed, \u017ee spoje bud\u00fa \u010diasto\u010dne odhalen\u00e9, \u010do \u013eahko sp\u00f4sob\u00ed nehody. V\u00fdrobky z nev\u00fdbu\u0161nej spojovacej skrinky maj\u00fa vyrie\u0161i\u0165 tieto probl\u00e9my a v\u00fdrobu v\u00fdrobkov, aby sa \u010falej zabezpe\u010dila bezpe\u010dn\u00e1 v\u00fdroba.<\/p>\n\n\n\n

Spolo\u010dn\u00e9 koncepcie ochrany proti v\u00fdbuchu<\/strong>
 Najsk\u00f4r by sme chceli predstavi\u0165 niektor\u00e9 spolo\u010dn\u00e9 pojmy o ochrane proti v\u00fdbuchu:<\/strong>
<\/strong>  <\/strong> R\u00f4zne krajiny a regi\u00f3ny maj\u00fa r\u00f4zne normy o nev\u00fdbu\u0161nosti, nasleduj\u00faci hlavn\u00fd odkaz je na \u010d\u00ednske normy GB, normy IEC Medzin\u00e1rodnej elektrotechnickej komisie, eur\u00f3pske normy EN, Eur\u00f3pska \u00fania vypracovala smernicu ATEX, normy NEC505. Je potrebn\u00e9 poznamena\u0165, \u017ee severoamerick\u00e9 pou\u017eitie s\u00e9rie noriem NEC500 a text rozdiel je ve\u013ek\u00fd, ak pou\u017e\u00edvate\u013e potrebuje splni\u0165 s\u00e9riu noriem NEC500, je potrebn\u00e9 vybra\u0165 pod\u013ea pr\u00edslu\u0161n\u00fdch inform\u00e1ci\u00ed, nem\u00f4\u017ee sa odvol\u00e1va\u0165 na nasleduj\u00face.<\/p>\n\n\n\n

Klasifik\u00e1cia v\u00fdbu\u0161n\u00fdch l\u00e1tok  <\/strong><\/strong><\/h3>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n

V\u00fdbu\u0161n\u00e9 l\u00e1tky sa delia do troch hlavn\u00fdch kateg\u00f3ri\u00ed pod\u013ea stup\u0148a hor\u013eavosti: V\u00fdbu\u0161n\u00e9 plyny sa delia do troch stup\u0148ov: 1, podzemn\u00e9 uho\u013en\u00e9 bane kv\u00f4li pr\u00edtomnosti plynu a uho\u013en\u00e9ho prachu sa klasifikuj\u00fa ako trieda I a nebud\u00fa sa \u010falej deli\u0165; 2, ostatn\u00e9 v\u00fdbu\u0161n\u00e9 plyny sa delia do troch stup\u0148ov \u2161A, \u2161B, \u2161C; 3, v\u00fdbu\u0161n\u00fd prach sa m\u00f4\u017ee pod\u013ea svojich vlastnost\u00ed rozdeli\u0165 na \u2162A, \u2162B, \u2162C. zna\u010dka \u2162B zariadenia sa m\u00f4\u017ee pou\u017ei\u0165 na pou\u017eitie v podmienkach \u2162A zariadenia, zna\u010dka \u2162C zariadenia sa m\u00f4\u017ee pou\u017ei\u0165 pre \u2162B a \u2162A Zariadenie s ozna\u010den\u00edm \u2162C sa m\u00f4\u017ee pou\u017ei\u0165 v podmienkach \u2162B a \u2162A.<\/p>\n\n\n\n

Klasifik\u00e1cia oblast\u00ed s nebezpe\u010denstvom v\u00fdbuchu<\/strong><\/strong><\/h3>\n\n\n\n

Z\u00f3na 0: Trval\u00e1 alebo \u010dast\u00e1 pr\u00edtomnos\u0165 hor\u013eav\u00fdch plynov at\u010f. za norm\u00e1lnych podmienok.<\/p>\n\n\n\n

Z\u00f3na 1: Za norm\u00e1lnych podmienok sa m\u00f4\u017eu vyskytova\u0165 hor\u013eav\u00e9 plyny at\u010f.<\/p>\n\n\n\n

Z\u00f3na 2: Za norm\u00e1lnych podmienok nie je pravdepodobn\u00fd v\u00fdskyt hor\u013eav\u00fdch plynov at\u010f.<\/p>\n\n\n\n

Z\u00f3na 20: Tam, kde sa za norm\u00e1lnych podmienok trvale alebo \u010dasto vyskytuj\u00fa v\u00fdbu\u0161n\u00e9 koncentr\u00e1cie hor\u013eav\u00fdch prachov at\u010f.<\/p>\n\n\n\n

Z\u00f3na 21: Za norm\u00e1lnych podmienok m\u00f4\u017eu existova\u0165 v\u00fdbu\u0161n\u00e9 koncentr\u00e1cie hor\u013eav\u00e9ho prachu at\u010f.<\/p>\n\n\n\n

Z\u00f3na 22: V\u00fdbu\u0161n\u00e9 koncentr\u00e1cie hor\u013eav\u00fdch prachov at\u010f., ktor\u00fdch v\u00fdskyt je za norm\u00e1lnych podmienok nepravdepodobn\u00fd.<\/p>\n\n\n\n

Teplota vznietenia v\u00fdbu\u0161n\u00e9ho plynu<\/strong><\/strong><\/h3>\n\n\n\n

Zvy\u010dajne je teplota vznietenia v\u00fdbu\u0161n\u00fdch plynov rozdelen\u00e1 do \u0161iestich skup\u00edn T1 ~ T6, je vidie\u0165, \u017ee teplota vznietenia T6 je najni\u017e\u0161ia, to znamen\u00e1, \u017ee skupina T6 je naj\u013eah\u0161ie zap\u00e1lite\u013en\u00e1, tak\u017ee ak elektrick\u00e9 zariadenie sp\u013a\u0148a skupinu plynov\u00e9ho prostredia T6, ale nevyhnutne sp\u013a\u0148a aj plynov\u00e9 prostredie T1-T5, to znamen\u00e1, \u017ee \u010d\u00edm vy\u0161\u0161ia je teplotn\u00e1 skupina zariadenia, t\u00fdm je bezpe\u010dnej\u0161ie (kompatibilita smerom nahor). (Odkaz: IEC60079, EN60079, NEC505)<\/p>\n\n\n\n

\u00darove\u0148 ochrany zariadenia<\/strong><\/strong><\/h3>\n\n\n\n

S cie\u013eom u\u013eah\u010di\u0165 v\u00fdber nev\u00fdbu\u0161n\u00e9ho zariadenia sa definuje \u00farove\u0148 ochrany zariadenia (EPL). R\u00f4zne typy nev\u00fdbu\u0161n\u00fdch zariaden\u00ed, pokia\u013e je EPL rovnak\u00e1, ich ochrann\u00e1 schopnos\u0165 je \u0161tandardne rovnak\u00e1, to znamen\u00e1, \u017ee sa m\u00f4\u017eu pou\u017e\u00edva\u0165 v rovnakej oblasti s nebezpe\u010denstvom v\u00fdbuchu. (Odkaz: IEC60079, normy EN a smernica ATEX Eur\u00f3pskej \u00fanie) Pou\u017e\u00edvanie nev\u00fdbu\u0161n\u00fdch svorkovn\u00edc<\/strong><\/p>\n\n\n\n

Bezpe\u010dnostn\u00e9 opatrenia pri v\u00fdbere nev\u00fdbu\u0161nej rozvodnej skrine<\/strong><\/strong><\/h2>\n\n\n\n

1. V\u00fdber triedy nev\u00fdbu\u0161nosti pod\u013ea po\u017eiadaviek prostredia<\/strong><\/strong><\/h3>\n\n\n\n

Pri v\u00fdbere nev\u00fdbu\u0161nej rozvodnej skrine je najprv potrebn\u00e9 ur\u010di\u0165 \u00farove\u0148 nev\u00fdbu\u0161nosti pod\u013ea po\u017eiadaviek skuto\u010dn\u00e9ho pracovn\u00e9ho prostredia. R\u00f4zne priemyseln\u00e9 miesta maj\u00fa r\u00f4zne po\u017eiadavky na nev\u00fdbu\u0161n\u00fa \u00farove\u0148, je potrebn\u00e9 vybra\u0165 vhodn\u00fa nev\u00fdbu\u0161n\u00fa rozvodn\u00fa skrinku pod\u013ea konkr\u00e9tnych okolnost\u00ed.<\/p>\n\n\n\n

2. Znalos\u0165 materi\u00e1lov a \u00farovn\u00ed ochrany<\/strong><\/strong><\/h3>\n\n\n\n

Nev\u00fdbu\u0161n\u00e9 rozvodn\u00e9 skrine s\u00fa zvy\u010dajne vyroben\u00e9 z nehrdzavej\u00facej ocele, hlin\u00edkovej zliatiny alebo FRP, ktor\u00e9 maj\u00fa dobr\u00fa nev\u00fdbu\u0161nos\u0165 a odolnos\u0165 proti kor\u00f3zii. Z\u00e1rove\u0148 je d\u00f4le\u017eit\u00e9 pochopi\u0165 \u00farove\u0148 ochrany, aby sa zabezpe\u010dilo, \u017ee dok\u00e1\u017ee \u00fa\u010dinne blokova\u0165 vnikanie prachu, vodn\u00fdch p\u00e1r a koroz\u00edvnych plynov.<\/p>\n\n\n\n

3. V\u00fdber vhodn\u00fdch rozmerov a pr\u00edslu\u0161enstva<\/strong><\/strong><\/h3>\n\n\n\n

Pri v\u00fdbere nev\u00fdbu\u0161nej rozvodnej skrine je potrebn\u00e9 ur\u010di\u0165 vhodn\u00fa ve\u013ekos\u0165 a pr\u00edslu\u0161enstvo pod\u013ea po\u010dtu a ve\u013ekosti in\u0161talovan\u00fdch zariaden\u00ed. Primeran\u00e1 ve\u013ekos\u0165 a pr\u00edslu\u0161enstvo m\u00f4\u017eu zabezpe\u010di\u0165 pohodlnej\u0161iu in\u0161tal\u00e1ciu zariadenia, ale aj \u00fa\u010dinne \u0161etri\u0165 miesto.<\/p>\n\n\n\n

Spr\u00e1vne pou\u017e\u00edvanie nev\u00fdbu\u0161nej rozvodnej skrine<\/strong><\/strong><\/h2>\n\n\n\n

1. Pravideln\u00e1 kontrola a \u00fadr\u017eba<\/strong><\/strong><\/h3>\n\n\n\n

Aby sa zabezpe\u010dila spr\u00e1vna funk\u010dnos\u0165 nev\u00fdbu\u0161nej rozvodnej skrine, je potrebn\u00e9 ju pravidelne kontrolova\u0165 a udr\u017eiava\u0165. Skontrolova\u0165, \u010di vonkaj\u0161\u00ed povrch rozvodnej skrine nie je po\u0161koden\u00fd, \u010di je vedenie pevn\u00e9 a \u010di je nev\u00fdbu\u0161n\u00e9 zariadenie vo funk\u010dnom stave. Ak sa zistia probl\u00e9my, mali by sa v\u010das opravi\u0165 a vymeni\u0165, aby neovplyvnili bezpe\u010dn\u00fa prev\u00e1dzku zariadenia.<\/p>\n\n\n\n

2. Dodr\u017eiavanie pravidiel pou\u017e\u00edvania<\/strong><\/strong><\/h3>\n\n\n\n

Pri pou\u017e\u00edvan\u00ed nev\u00fdbu\u0161nej rozvodnej skrine je potrebn\u00e9 pr\u00edsne dodr\u017eiava\u0165 pr\u00edslu\u0161n\u00e9 predpisy na pou\u017e\u00edvanie. Neopr\u00e1vnen\u00e1 demont\u00e1\u017e alebo \u00faprava nev\u00fdbu\u0161nej rozvodnej skrine je zak\u00e1zan\u00e1, aby nedo\u0161lo k po\u0161kodeniu nev\u00fdbu\u0161nej kon\u0161trukcie, \u010do by malo za n\u00e1sledok bezpe\u010dnostn\u00e9 nehody. Z\u00e1rove\u0148 je tie\u017e potrebn\u00e9 vyhn\u00fa\u0165 sa pou\u017e\u00edvaniu be\u017en\u00fdch zariaden\u00ed v hor\u013eavom a v\u00fdbu\u0161nom prostred\u00ed a mali by sa pou\u017e\u00edva\u0165 zariadenia s nev\u00fdbu\u0161n\u00fdm preveden\u00edm, aby sa zabezpe\u010dila bezpe\u010dnos\u0165 v\u00fdrobn\u00e9ho prostredia.<\/p>\n\n\n\n

3. Zlep\u0161enie odbornej pr\u00edpravy zamestnancov<\/strong><\/strong><\/h3>\n\n\n\n

Na pou\u017e\u00edvanie person\u00e1lu nev\u00fdbu\u0161n\u00fdch rozvodn\u00fdch skr\u00ed\u0148 je potrebn\u00e9 posilni\u0165 pr\u00edslu\u0161n\u00e9 bezpe\u010dnostn\u00e9 \u0161kolenia, aby sa zlep\u0161ilo ich ch\u00e1panie nev\u00fdbu\u0161n\u00fdch zariaden\u00ed a prev\u00e1dzkov\u00fdch zru\u010dnost\u00ed. Iba odborne vy\u0161kolen\u00fd person\u00e1l m\u00f4\u017ee spr\u00e1vne pou\u017e\u00edva\u0165 a udr\u017eiava\u0165 nev\u00fdbu\u0161n\u00fa spojovaciu skrinku, \u00fa\u010dinne predch\u00e1dza\u0165 mo\u017en\u00fdm bezpe\u010dnostn\u00fdm incidentom a reagova\u0165 na ne.<\/p>","protected":false},"excerpt":{"rendered":"

Explosion-proof junction box introduction and application Explosion-proof junction box In industries such as petroleum, chemical, coal mining and metallurgy, there are often scenarios of combustible gases or dusts in the production chain, which are flammable, explosive and dusty environments. Ordinary electrical equipment in the operation process, if an electric spark, will inevitably cause combustion or […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","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":"","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-2147","post","type-post","status-publish","format-standard","hentry","category-explosion-proof-equipment"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"Joe","author_link":"https:\/\/led.amasly.com\/sk\/author\/jacklin\/"},"uagb_comment_info":0,"uagb_excerpt":"Explosion-proof junction box introduction and application Explosion-proof junction box In industries such as petroleum, chemical, coal mining and metallurgy, there are often scenarios of combustible gases or dusts in the production chain, which are flammable, explosive and dusty environments. Ordinary electrical equipment in the operation process, if an electric spark, will inevitably cause combustion or…","_links":{"self":[{"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/posts\/2147","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=2147"}],"version-history":[{"count":2,"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/posts\/2147\/revisions"}],"predecessor-version":[{"id":2306,"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/posts\/2147\/revisions\/2306"}],"wp:attachment":[{"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/media?parent=2147"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/categories?post=2147"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/led.amasly.com\/sk\/wp-json\/wp\/v2\/tags?post=2147"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}