{"id":5895,"date":"2025-12-06T19:55:11","date_gmt":"2025-12-06T19:55:11","guid":{"rendered":"https:\/\/www.vaseuzemneni.cz\/?p=5895"},"modified":"2025-12-06T22:21:28","modified_gmt":"2025-12-06T22:21:28","slug":"jak-zmerit-vodivost-podlozky-prosteradla","status":"publish","type":"post","link":"https:\/\/www.vaseuzemneni.cz\/sk\/jak-zmerit-vodivost-podlozky-prosteradla\/","title":{"rendered":"Jak zm\u011b\u0159it vodivost podlo\u017eky nebo prost\u011bradla"},"content":{"rendered":"

Vodivost prost\u011bradla nebo uzem\u0148ovac\u00ed podlo\u017eky lze zm\u011b\u0159it snadno jak\u00fdmkoli b\u011b\u017en\u00fdm multimetrem (k dost\u00e1n\u00ed v prodejn\u00e1ch s elektrik\u00e1\u0159sk\u00fdm vybaven\u00edm GME, GES, apod).<\/p>\n\n\n\n

Multimetr zapneme a nastav\u00edme na m\u011b\u0159en\u00ed odporu (jednotka Ohm, \u0159eck\u00e9 p\u00edsmeno Omega). Pokud m\u00e1 multimetr zvl\u00e1\u0161\u0165 nastaven\u00ed pro jednotliv\u00e9 rozsahy odporu, tak jej nastav\u00edme na 6kOhm nebo 60 kOhm (viz obr. 1).<\/p>\n\n\n\n

\"Nastaven\u00ed<\/a>
Obr. 1: Nastaven\u00ed multimetru pro m\u011b\u0159en\u00ed odporu.<\/em><\/figcaption><\/figure>\n\n\n\n

N\u00e1sledn\u011b p\u0159ilo\u017e\u00edme ob\u011b sondy multimetru na m\u011b\u0159enou podlo\u017eku \u010di prost\u011bradlo (viz Obr. 3). Multimetr by n\u00e1m m\u011bl uk\u00e1zat hodnotu odporu. Tato hodnota z\u00e1vis\u00ed na tom jak daleko od sebe sondy p\u0159ilo\u017e\u00edte.<\/p>\n\n\n\n

\"Pokud<\/a>
Obr. 2: Pokud se podlo\u017eky dot\u00fdk\u00e1 pouze jedna sonda, multimetr ukazuje 0.<\/em><\/figcaption><\/figure>\n\n\n\n
\"Pokud<\/a>
Obr. 3: Pokud se dotkeneme podlo\u017eky i druhou sondou, multimetr uk\u00e1\u017ee hodnotu nam\u011b\u0159en\u00e9ho odporu. V tomto p\u0159\u00edpad\u011b 2,29k Ohm\u016f.<\/em><\/figcaption><\/figure>\n\n\n\n

V na\u0161em p\u0159\u00edpad\u011b multimetr uk\u00e1zal odpor 2.1 kOhm, co\u017e je pro tento typ podlo\u017eky v po\u0159\u00e1dku. Konkr\u00e9tn\u00ed p\u0159esn\u00e1 hodnota odporu nen\u00ed podstatn\u00e1. Pro na\u0161e uzem\u0148ovac\u00ed podlo\u017eky s uhl\u00edkovou vrstvou je m\u011brn\u00fd odpor cca 7 kOhm\/50cm. U prost\u011bradel je m\u011brn\u00fd odpor cca 1 kOhm\/50cm.<\/p>\n\n\n\n

Takto jsme si jednodu\u0161e ov\u011b\u0159ili, \u017ee je podlo\u017eka opravdu vodiv\u00e1. Pokud by multimetr uk\u00e1zal stejnou hodnotu, jako kdy\u017e ob\u011b sondy nem\u00e1te p\u0159ilo\u017eeny (na foto je tato hodnota 0L – viz obr. 2), to by znamenalo, \u017ee dan\u00fd podlo\u017eka \u010di prost\u011bradlo nen\u00ed vodiv\u00e9.<\/p>\n\n\n\n

Pro kontrolu zb\u00fdv\u00e1 zm\u011b\u0159it tak\u00e9 odpor p\u0159\u00edvodn\u00edho uzem\u0148ovac\u00edho kabelu. V konektoru kabelu je zabudov\u00e1n bezpe\u010dnost\u00ed odpor 100k Ohm\u016f, aby v p\u0159\u00edpad\u011b poruchy \u010di zkratu nedo\u0161lo k poran\u011bn\u00ed elektrick\u00fdm proudem. Pro tento p\u0159\u00edpad nastav\u00edme multimetr na rozsah m\u011b\u0159en\u00ed 600k Ohm\u016f. A v\u00fdsledn\u00fd nam\u011b\u0159en\u00fd odpor bude kolem 100kOhm, v na\u0161em p\u0159\u00edpad\u011b konkr\u00e9tn\u011b 101,3kOhm (viz obr. 4).<\/p>\n\n\n\n

\"M\u011b\u0159en\u00ed<\/a>
Obr. 4: M\u011b\u0159en\u00ed odporu podlo\u017eky se zapojen\u00fdm p\u0159\u00edvodn\u00edm kabelem se zabudovan\u00fdm odporem 100k.<\/em><\/figcaption><\/figure>\n\n\n\n

T\u00edmto jsme si ov\u011b\u0159ili jak vodivost samotn\u00e9 podlo\u017eky, tak i to, \u017ee p\u0159\u00edvodn\u00ed kabel je tak\u00e9 vodiv\u00fd a nen\u00ed nikde p\u0159eru\u0161en.<\/p>","protected":false},"excerpt":{"rendered":"

Vodivost prost\u011bradla nebo uzem\u0148ovac\u00ed podlo\u017eky lze zm\u011b\u0159it snadno jak\u00fdmkoli b\u011b\u017en\u00fdm multimetrem (k dost\u00e1n\u00ed v prodejn\u00e1ch s elektrik\u00e1\u0159sk\u00fdm vybaven\u00edm GME, GES, apod). Multimetr zapneme a nastav\u00edme na m\u011b\u0159en\u00ed odporu (jednotka Ohm, \u0159eck\u00e9 p\u00edsmeno Omega). Pokud m\u00e1 multimetr zvl\u00e1\u0161\u0165 nastaven\u00ed pro jednotliv\u00e9 rozsahy odporu, tak jej nastav\u00edme na 6kOhm nebo 60 kOhm (viz obr. 1). N\u00e1sledn\u011b p\u0159ilo\u017e\u00edme ob\u011b sondy multimetru na […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5895","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"yoast_head":"\nJak zm\u011b\u0159it vodivost podlo\u017eky nebo prost\u011bradla - Va\u0161eUzemn\u011bn\u00ed.cz - Uzem\u0148ovac\u00ed prost\u011bradla a podlo\u017eky<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vaseuzemneni.cz\/sk\/jak-zmerit-vodivost-podlozky-prosteradla\/\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.vaseuzemneni.cz\\\/jak-zmerit-vodivost-podlozky-prosteradla\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\u016f\",\"item\":\"https:\\\/\\\/www.vaseuzemneni.cz\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak zm\u011b\u0159it vodivost podlo\u017eky nebo prost\u011bradla\"}]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Jak zm\u011b\u0159it vodivost podlo\u017eky nebo prost\u011bradla - Va\u0161eUzemn\u011bn\u00ed.cz - Uzem\u0148ovac\u00ed prost\u011bradla a podlo\u017eky","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.vaseuzemneni.cz\/sk\/jak-zmerit-vodivost-podlozky-prosteradla\/","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/www.vaseuzemneni.cz\/jak-zmerit-vodivost-podlozky-prosteradla\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Dom\u016f","item":"https:\/\/www.vaseuzemneni.cz\/"},{"@type":"ListItem","position":2,"name":"Jak zm\u011b\u0159it vodivost podlo\u017eky nebo prost\u011bradla"}]}]}},"_links":{"self":[{"href":"https:\/\/www.vaseuzemneni.cz\/sk\/wp-json\/wp\/v2\/posts\/5895","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vaseuzemneni.cz\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vaseuzemneni.cz\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vaseuzemneni.cz\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vaseuzemneni.cz\/sk\/wp-json\/wp\/v2\/comments?post=5895"}],"version-history":[{"count":4,"href":"https:\/\/www.vaseuzemneni.cz\/sk\/wp-json\/wp\/v2\/posts\/5895\/revisions"}],"predecessor-version":[{"id":5908,"href":"https:\/\/www.vaseuzemneni.cz\/sk\/wp-json\/wp\/v2\/posts\/5895\/revisions\/5908"}],"wp:attachment":[{"href":"https:\/\/www.vaseuzemneni.cz\/sk\/wp-json\/wp\/v2\/media?parent=5895"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vaseuzemneni.cz\/sk\/wp-json\/wp\/v2\/categories?post=5895"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vaseuzemneni.cz\/sk\/wp-json\/wp\/v2\/tags?post=5895"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}