{"id":13567,"date":"2025-04-30T09:29:48","date_gmt":"2025-04-30T07:29:48","guid":{"rendered":"https:\/\/rwlkwwtx9d.wpdns.site\/?p=13567"},"modified":"2025-05-15T15:23:18","modified_gmt":"2025-05-15T13:23:18","slug":"normy-a-skusky-pre-kablove-chranicky-450n-a-750n","status":"publish","type":"post","link":"https:\/\/polieco.com\/sk\/normy-a-skusky-pre-kablove-chranicky-450n-a-750n\/","title":{"rendered":"NORMY A SK\u00da\u0160KY PRE K\u00c1BLOV\u00c9 CHR\u00c1NI\u010cKY 450N A 750N"},"content":{"rendered":"\n<p>Rebrovan\u00e9 k\u00e1blov\u00e9 chr\u00e1ni\u010dky&nbsp;<a href=\"https:\/\/polieco.com\/sk\/prodotti\/kablova-chranicka-450n\/\">450N<\/a>&nbsp;a&nbsp;<a href=\"https:\/\/polieco.com\/sk\/prodotti\/kablova-chranicka-750n\/\">750N<\/a>&nbsp;sa vyr\u00e1baj\u00fa a sk\u00fa\u0161aj\u00fa v s\u00falade s normami CEI EN 61386-1 a CEI EN 61386-24. S oh\u013eadom na tieto normy k\u00e1\u017ed\u00fd \u0161t\u00e1t Eur\u00f3pskej \u00fanie vyd\u00e1va vlastn\u00fa v\u00fdrobn\u00fa zn\u00e1mku: m\u00e1me dva pr\u00edklady&nbsp;<a href=\"https:\/\/polieco.com\/sk\/systemove-a-produktove-certifikaty\/\">zn\u00e1mka IMQ<\/a>&nbsp;v Taliansku a&nbsp;<a href=\"https:\/\/polieco.com\/sk\/systemove-a-produktove-certifikaty\/\"><strong>zn\u00e1mka NF<\/strong><\/a>&nbsp;vo Franc\u00fazsku.&nbsp;<a href=\"https:\/\/polieco.com\/sk\/type\/kablove-chranicky\/\">Trubice k\u00e1blov\u00fdch chr\u00e1ni\u010diek<\/a>&nbsp;sa vyr\u00e1baj\u00fa v s\u00falade so \u201cSmernicou 2014\/35\/E\u00da o elektrickom zariaden\u00ed ur\u010denom na pou\u017e\u00edvanie v r\u00e1mci ur\u010dit\u00fdch limitov nap\u00e4tia\u201d a s\u00fa ozna\u010den\u00e9 CE, a preto nespadaj\u00fa pod \u201cNariadenie pre stavebn\u00e9 v\u00fdrobky \u010d\u00eds. 305\/2011\u201d.<\/p>\n\n\n\n<p>K\u00e1blov\u00e9 chr\u00e1ni\u010dky musia by\u0165 identifikovate\u013en\u00e9 trval\u00fdm a \u010ditate\u013en\u00fdm ozna\u010den\u00edm na povrchu trubice v pravidelnej vzdialenosti od 1 do 3 metrov.<\/p>\n\n\n\n<p>Ozna\u010denie v s\u00falade s normami CEI EN 61386-1 a CEI EN 61386-24 mus\u00ed nies\u0165 tieto inform\u00e1cie:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>n\u00e1zov v\u00fdrobcu<\/li>\n\n\n\n<li>menovit\u00fd priemer<\/li>\n\n\n\n<li>p\u00edsmeno N (norm\u00e1lny typ)<\/li>\n\n\n\n<li>s\u00favisiace normy<\/li>\n\n\n\n<li>zn\u00e1mku a certifika\u010dn\u00fa organiz\u00e1ciu (napr.: IEMMEQU)<\/li>\n\n\n\n<li>d\u00e1tum v\u00fdroby<\/li>\n\n\n\n<li>odolnos\u0165 na stla\u010denie (450N alebo 750N)<\/li>\n<\/ul>\n\n\n\n<p>Sk\u00fa\u0161ky, ktor\u00e9 po\u017eaduj\u00fa uveden\u00e9 normy, a ktor\u00e9 s\u00fa \u010dasto uveden\u00e9 v&nbsp;<strong>technickej karte rebrovanej trubice,<\/strong>&nbsp;s\u00fa tieto:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>odolnos\u0165 na stla\u010denie (450N alebo 750N);<\/li>\n\n\n\n<li>odolnos\u0165 na n\u00e1raz (s\u00e9ria L alebo N);<\/li>\n\n\n\n<li>odolnos\u0165 na ohnutie: ohnute\u013en\u00e1 alebo oh\u00fdbate\u013en\u00e1;<\/li>\n\n\n\n<li>odolnos\u0165 na prienik pevn\u00fdch telies a tekut\u00edn: stupe\u0148 ochrany IP pod\u013ea normy CEI EN 60529.<\/li>\n<\/ul>\n\n\n\n<p>Hlavn\u00fdmi vlastnos\u0165ami pre spr\u00e1vny v\u00fdber&nbsp;<strong>rebrovan\u00fdch trub\u00edc pre elektrick\u00fa in\u0161tal\u00e1ciu pod\u013ea normy<\/strong>&nbsp;s\u00fa odolnos\u0165 na stla\u010denie a n\u00e1raz.<\/p>\n\n\n\n<p>Odolnos\u0165 na n\u00e1raz je najd\u00f4le\u017eitej\u0161ou vlastnos\u0165ou od chv\u00edle, ke\u010f sa trubica d\u00e1va pod zem a n\u00e1sledne je na \u0148u vyv\u00edjan\u00fd statick\u00fd tlak p\u00f4dy zhora. K tomuto treba prida\u0165 pr\u00edpadn\u00fd tlak p\u00f4sobiaci nad zemou, ako je tlak vozidiel. Na z\u00e1klade ustanoven\u00ed noriem, vzorka <strong>rebrovanej k\u00e1blovej chr\u00e1ni\u010dky<\/strong> sa stla\u010d\u00ed medzi dvomi plat\u0148ami tak, aby sa zdeformoval vn\u00fatorn\u00fd priemer o 5%; sila potrebn\u00e1 na tak\u00e9to stla\u010denie mus\u00ed by\u0165 vy\u0161\u0161ie ne\u017e je hodnota&nbsp;<a href=\"https:\/\/polieco.com\/sk\/prodotti\/kablova-chranicka-450n\/\">450N<\/a>&nbsp;alebo&nbsp;<a href=\"https:\/\/polieco.com\/sk\/prodotti\/kablova-chranicka-750n\/\">750N<\/a>.<\/p>\n\n\n\n<p>Ak je odolnos\u0165 na stla\u010denie vlastnos\u0165ou, ktor\u00e1 sprev\u00e1dza&nbsp;<a href=\"https:\/\/polieco.com\/sk\/type\/kablove-chranicky\/\">k\u00e1blov\u00fa chr\u00e1ni\u010dku<\/a>&nbsp;po cel\u00fa jej \u017eivotnos\u0165, sk\u00fa\u0161ka na n\u00e1raz naopak sl\u00fa\u017ei na zabezpe\u010denie chr\u00e1ni\u010dky pri pokladan\u00ed. Sk\u00fa\u0161ka simuluje n\u00e1hodn\u00e9 nam\u00e1hanie sp\u00f4soben\u00e9 kame\u0148mi v ter\u00e9ne, ktor\u00e9 dopadaj\u00fa na povrch produktu po\u010das f\u00e1zy ukladania do zeme. Preto je vhodn\u00e9, aby vrstva zeme pri k\u00e1blovej chr\u00e1ni\u010dke bola bez kame\u0148ov s priemerom viac ako 80-100 mm. Pri testovan\u00ed tejto vlastnosti sa vzorka, chladen\u00e1 2 hodiny pri -5 \u00b0C, nar\u00e1\u017ea ty\u010dou s pevnou hmotnos\u0165ou 5 kg z r\u00f4znej v\u00fd\u0161ky v z\u00e1vislosti od menovit\u00e9ho priemeru&nbsp;<strong>rebrovan\u00fdch trub\u00edc<\/strong>&nbsp;(od 300 do 800 mm v\u00fd\u0161ky). Po skon\u010den\u00ed sk\u00fa\u0161ky nesmie by\u0165 na trubici \u017eiadna \u0161trbina, ktorou by mohla prech\u00e1dza\u0165 voda&nbsp; z vn\u00fatra trubice von..<\/p>\n\n\n\n<p class=\"has-text-align-center\"><a class=\"button button-darker\" href=\"https:\/\/polieco.com\/sk\/prodotti\/kablova-chranicka-450n\/\" target=\"_blank\" rel=\"noopener\">K\u00c1BLOV\u00c9 CHR\u00c1NI\u010cKY 450 N <\/a>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <a class=\"button button-darker\" href=\"https:\/\/polieco.com\/sk\/prodotti\/kablova-chranicka-750n\/\" target=\"_blank\" rel=\"noopener\">K\u00c1BLOV\u00c9 CHR\u00c1NI\u010cKY 750 N <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Rebrovan\u00e9 k\u00e1blov\u00e9 chr\u00e1ni\u010dky&nbsp;450N&nbsp;a&nbsp;750N&nbsp;sa vyr\u00e1baj\u00fa a sk\u00fa\u0161aj\u00fa v s\u00falade s normami CEI EN 61386-1 a CEI EN 61386-24. S oh\u013eadom na [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[199],"tags":[],"class_list":["post-13567","post","type-post","status-publish","format-standard","hentry","category-kablove-chranicky"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NORMY A SK\u00da\u0160KY PRE K\u00c1BLOV\u00c9 CHR\u00c1NI\u010cKY 450N A 750N - Polieco Industrie MPB<\/title>\n<meta name=\"description\" content=\"K\u00e1blov\u00e9 chr\u00e1ni\u010dky musia sp\u013a\u0148a\u0165 ur\u010dit\u00e9 v\u00fdrobn\u00e9 krit\u00e9ri\u00e1. 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