{"id":3219,"date":"2026-03-11T15:22:01","date_gmt":"2026-03-11T15:22:01","guid":{"rendered":"https:\/\/www.wundertricks.com\/?p=3219"},"modified":"2026-03-11T15:22:01","modified_gmt":"2026-03-11T15:22:01","slug":"je-vlnita-rurka-potrebna-pri-instalacii-elektrickeho-vedenia-ako-trvaju-stavitelia-alebo-je-lepsie-ju-instalovat-do-betonu-podme-to-zistit","status":"publish","type":"post","link":"https:\/\/www.wundertricks.com\/?p=3219","title":{"rendered":"Je vlnit\u00e1 r\u00farka potrebn\u00e1 pri in\u0161tal\u00e1cii elektrick\u00e9ho vedenia, ako trvaj\u00fa stavitelia, alebo je lep\u0161ie ju in\u0161talova\u0165 do bet\u00f3nu? Po\u010fme to zisti\u0165."},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Meta popis:<\/strong> Oplat\u00ed sa pou\u017ei\u0165 plastov\u00fa chr\u00e1ni\u010dku na elektroin\u0161tal\u00e1ciu v byte? Zistite pravdu o ochrane pred vodou, mechanickom po\u0161koden\u00ed a m\u00fdtoch o nehor\u013eavosti materi\u00e1lov.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Plastov\u00e1 chr\u00e1ni\u010dka na k\u00e1ble: Skuto\u010dn\u00e1 ochrana alebo zbyto\u010dn\u00e9 vyhadzovanie pe\u0148az\u00ed?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V poslednom \u010dase sa pri rekon\u0161trukci\u00e1ch a stavb\u00e1ch stalo trendom umiest\u0148ova\u0165 elektroin\u0161tal\u00e1ciu do plastov\u00fdch ohybn\u00fdch r\u00farok, zn\u00e1mych ako \u201ehusie krky\u201c alebo vr\u00e1skav\u00e9 chr\u00e1ni\u010dky. Mnoh\u00ed elektrik\u00e1ri a stavebn\u00e9 firmy t\u00fato met\u00f3du presadzuj\u00fa ako nevyhnutn\u00fd \u0161tandard. Zamyslime sa v\u0161ak spolo\u010dne: m\u00e1 tak\u00e1to oper\u00e1cia v be\u017enom mestskom byte re\u00e1lny zmysel, alebo ide len o \u0161ikovn\u00fd trik remeseln\u00edkov, ako nav\u00fd\u0161i\u0165 rozpo\u010det za materi\u00e1l a pr\u00e1cu?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ochrana pred mechanick\u00fdm po\u0161koden\u00edm a vodou<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdrobcovia a predajcovia t\u00fdchto produktov svorne tvrdia, \u017ee chr\u00e1ni\u010dka m\u00e1 elektrick\u00e9 k\u00e1ble chr\u00e1ni\u0165 pred vlhkos\u0165ou a mechanick\u00fdm zlomen\u00edm. V na\u0161ich panelov\u00fdch \u010di tehlov\u00fdch domoch je v\u0161ak kabel\u00e1\u017e pevne zamurovan\u00e1 v sten\u00e1ch pod vrstvou omietky. Je ve\u013emi \u0165a\u017ek\u00e9 predstavi\u0165 si situ\u00e1ciu, kedy by v stene do\u0161lo k n\u00e1hodn\u00e9mu mechanick\u00e9mu po\u0161kodeniu k\u00e1bla. Ak by aj do\u0161lo k extr\u00e9mnemu n\u00e1razu, tenk\u00e1 PVC vrstva by k\u00e1bel zachr\u00e1nila len sotva. \u010co sa t\u00fdka vody, modern\u00e9 k\u00e1ble maj\u00fa dvojit\u00fa izol\u00e1ciu, ktor\u00e1 ich chr\u00e1ni viac ne\u017e dostato\u010dne. V miestach, kde re\u00e1lne hroz\u00ed zatekanie (napr\u00edklad pri z\u00e1suvk\u00e1ch alebo v\u00fdvodoch), sa navy\u0161e chr\u00e1ni\u010dka z praktick\u00fdch d\u00f4vodov nepou\u017e\u00edva, tak\u017ee v kritickom bode nepom\u00f4\u017ee.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kde m\u00e1 pou\u017eitie chr\u00e1ni\u010dky re\u00e1lne opodstatnenie?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hoci je v mestsk\u00fdch bytoch jej pr\u00ednos sporn\u00fd, existuj\u00fa pr\u00edpady, kedy je t\u00e1to technol\u00f3gia u\u017eito\u010dn\u00e1. Ide najm\u00e4 o dut\u00e9 stropy alebo drevenice a chaty. Tam, kde sa k\u00e1ble ved\u00fa po povrchu alebo v dreven\u00fdch kon\u0161trukci\u00e1ch, m\u00e1 zmysel \u201ezabali\u0165\u201c vedenie do dodato\u010dnej vrstvy. Taktie\u017e pri vonkaj\u0161ej elektroin\u0161tal\u00e1cii m\u00f4\u017ee chr\u00e1ni\u010dka sl\u00fa\u017ei\u0165 ako poistka pre dlh\u0161iu \u017eivotnos\u0165 izol\u00e1cie. Ni\u017e\u0161ie uv\u00e1dzame porovnanie be\u017en\u00fdch typov materi\u00e1lov pou\u017e\u00edvan\u00fdch na ochranu k\u00e1blov:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Typ materi\u00e1lu<\/strong><\/td><td><strong>Vlastnosti<\/strong><\/td><td><strong>Odpor\u00fa\u010dan\u00e9 pou\u017eitie<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>Siv\u00e1 PVC chr\u00e1ni\u010dka<\/strong><\/td><td>Samozh\u00e1\u0161av\u00e1, m\u00e4kk\u00e1<\/td><td>Be\u017en\u00e9 vn\u00fatorn\u00e9 rozvody v dutin\u00e1ch.<\/td><\/tr><tr><td><strong>\u010cierna HDPE r\u00farka<\/strong><\/td><td>Odoln\u00e1 vo\u010di UV \u017eiareniu, hor\u013eav\u00e1<\/td><td>Exteri\u00e9r, ulo\u017eenie do zeme.<\/td><\/tr><tr><td><strong>Kovov\u00e1 chr\u00e1ni\u010dka<\/strong><\/td><td>Mechanicky najpevnej\u0161ia, nehor\u013eav\u00e1<\/td><td>Priemyseln\u00e9 objekty, drevostavby.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u00fdtus o nehor\u013eavosti materi\u00e1lu<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u010eal\u0161\u00edm siln\u00fdm argumentom predajcov je nehor\u013eavos\u0165 materi\u00e1lu. Prax v\u0161ak ukazuje nie\u010do in\u00e9. V\u00e4\u010d\u0161ina plastov pou\u017e\u00edvan\u00fdch na v\u00fdrobu t\u00fdchto r\u00farok sa pri kontakte s oh\u0148om minim\u00e1lne tav\u00ed. Navy\u0161e, aby k\u00e1bel v stene za\u010dal horie\u0165, potreboval by pr\u00edstup kysl\u00edka, ktor\u00fd tam nem\u00e1. K po\u017eiarom doch\u00e1dza naj\u010dastej\u0161ie v krabiciach a z\u00e1suvk\u00e1ch \u2013 teda presne tam, kde sa chr\u00e1ni\u010dka kon\u010d\u00ed. Ak chcete skuto\u010dn\u00fa protipo\u017eiarnu ochranu, napr\u00edklad pri in\u0161tal\u00e1cii podlahov\u00e9ho k\u00farenia, je lep\u0161ie siahnu\u0165 po kovovej r\u00farke alebo pevnom plaste, ktor\u00fd odol\u00e1 tlaku bet\u00f3nu pri zalievan\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u00fdsledky testov: \u010co sa stane v ohni?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pri p\u00e1tran\u00ed po re\u00e1lnych sk\u00fasenostiach sme narazili na zauj\u00edmav\u00fd experiment s tromi druhmi chr\u00e1ni\u010diek. V\u00fdsledky boli jednozna\u010dn\u00e9. Klasick\u00e1 siv\u00e1 PVC chr\u00e1ni\u010dka s\u00edce priamo nehorela plame\u0148om, ale okam\u017eite sa zo\u0161kvrkla a roztavila na k\u00e1bel. \u010cierna HDPE r\u00farka horela ve\u013emi intenz\u00edvne a odkvapk\u00e1vali z nej horiace kvapky plastu. Varianta s retard\u00e9rom horenia s\u00edce nehorela tak prudko, ale ohe\u0148 st\u00e1le \u0161\u00edrila. Z\u00e1ver je jasn\u00fd: niektor\u00e9 typy r\u00farok m\u00f4\u017eu v pr\u00edpade skratu ohe\u0148 dokonca roznies\u0165 \u010falej po budove namiesto toho, aby ho zastavili.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ak pl\u00e1nujete rekon\u0161trukciu bytu, nenechajte sa bezhlavo nahovori\u0165 na zbyto\u010dn\u00e9 polo\u017eky v rozpo\u010dte. V klasickej panelovej stene je chr\u00e1ni\u010dka \u010dasto len &#8220;estetick\u00fdm&#8221; doplnkom, ktor\u00fd zaplat\u00edte vy. Ak v\u0161ak staviate drevodom alebo rie\u0161ite rozvody v podh\u013eadoch, vyberajte materi\u00e1l s certifik\u00e1tom a vysokou odolnos\u0165ou. Spr\u00e1vne zvolen\u00e1 elektroin\u0161tal\u00e1cia je z\u00e1kladom bezpe\u010dn\u00e9ho domova, ale mus\u00ed by\u0165 navrhnut\u00e1 logicky a \u00fa\u010delne.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Zauj\u00edmaj\u00fa v\u00e1s \u010fal\u0161ie praktick\u00e9 rady pre va\u0161u stavbu alebo byt?<\/strong> Ak chcete ma\u0165 preh\u013ead o tom, na \u010dom sa oplat\u00ed \u0161etri\u0165 a kde rad\u0161ej ne\u0161etri\u0165, <strong>prihl\u00e1ste sa na odber na\u0161ej str\u00e1nky<\/strong>! Budeme v\u010fa\u010dn\u00ed za ka\u017ed\u00fd <strong>lajk<\/strong> a ak si mysl\u00edte, \u017ee tento \u010dl\u00e1nok m\u00f4\u017ee niekomu pom\u00f4c\u0165, nev\u00e1hajte ho <strong>zdie\u013ea\u0165<\/strong> so svojimi zn\u00e1mymi. Va\u0161a podpora n\u00e1s pos\u00fava vpred!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Meta popis: Oplat\u00ed sa pou\u017ei\u0165 plastov\u00fa chr\u00e1ni\u010dku na elektroin\u0161tal\u00e1ciu v byte? Zistite pravdu o ochrane pred vodou, mechanickom po\u0161koden\u00ed a m\u00fdtoch o nehor\u013eavosti materi\u00e1lov. Plastov\u00e1 chr\u00e1ni\u010dka na k\u00e1ble: Skuto\u010dn\u00e1 ochrana [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":3220,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-3219","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-recept"],"_links":{"self":[{"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=\/wp\/v2\/posts\/3219","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3219"}],"version-history":[{"count":1,"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=\/wp\/v2\/posts\/3219\/revisions"}],"predecessor-version":[{"id":3221,"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=\/wp\/v2\/posts\/3219\/revisions\/3221"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=\/wp\/v2\/media\/3220"}],"wp:attachment":[{"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wundertricks.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}