{"id":66773,"date":"2023-03-20T06:41:29","date_gmt":"2023-03-20T05:41:29","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/drut-oporowy-co-to-jest-i-gdzie-jest-wykorzystywany\/"},"modified":"2023-07-27T15:26:31","modified_gmt":"2023-07-27T13:26:31","slug":"odporovy-drat-co-to-je-a-kde-se-pouziva","status":"publish","type":"post","link":"https:\/\/botland.cz\/blog\/odporovy-drat-co-to-je-a-kde-se-pouziva\/","title":{"rendered":"Odporov\u00fd dr\u00e1t &#8211; co to je a kde se pou\u017e\u00edv\u00e1?"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u010cas \u010dten\u00ed:<\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">min.<\/span><\/span>\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"66773\" class=\"elementor elementor-66773 elementor-43285\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-aefb6fb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"aefb6fb\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5a38483\" data-id=\"5a38483\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bbfa4a1 elementor-widget elementor-widget-text-editor\" data-id=\"bbfa4a1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\nOdporov\u00fd dr\u00e1t je d\u016fle\u017eitou sou\u010d\u00e1st\u00ed mnoha za\u0159\u00edzen\u00ed, jako jsou oh\u0159\u00edva\u010de nebo za\u0159\u00edzen\u00ed na \u0159ez\u00e1n\u00ed polystyrenu. Zjist\u011bte, co jsou odporov\u00e9 dr\u00e1ty a jak funguj\u00ed!\n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5c6e21c elementor-widget elementor-widget-heading\" data-id=\"5c6e21c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><h2 data-elementor-setting-key=\"title\" data-pen-placeholder=\"Pisz tutaj...\" style=\"font-family: var( --e-global-typography-primary-font-family ), Sans-serif;font-weight: var( --e-global-typography-primary-font-weight )\">Co je to odporov\u00fd dr\u00e1t?<\/h2><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9671143 elementor-widget elementor-widget-text-editor\" data-id=\"9671143\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Odporov\u00fd dr\u00e1t je dr\u00e1t vyroben\u00fd z odporov\u00e9ho materi\u00e1lu, tj. l\u00e1tky s vysokou hodnotou m\u011brn\u00e9ho odporu. V praxi to znamen\u00e1, \u017ee takov\u00fd dr\u00e1t m\u00e1 velmi vysok\u00fd odpor v pom\u011bru ke sv\u00e9mu pr\u016fm\u011bru (a z\u00e1rove\u0148 je \u00fam\u011brn\u00fd sv\u00e9 d\u00e9lce) a je tak\u00e9 odoln\u00fd v\u016f\u010di vysok\u00fdm teplot\u00e1m.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b3f4734 elementor-widget elementor-widget-heading\" data-id=\"b3f4734\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><h2 data-elementor-setting-key=\"title\" data-pen-placeholder=\"Pisz tutaj...\" style=\"font-family: var( --e-global-typography-primary-font-family ), Sans-serif;font-weight: var( --e-global-typography-primary-font-weight )\">Z jak\u00fdch materi\u00e1l\u016f jsou vyrobeny odporov\u00e9 dr\u00e1ty?<\/h2><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c03f4ad elementor-widget elementor-widget-text-editor\" data-id=\"c03f4ad\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Odporov\u00e9 dr\u00e1ty jsou tvo\u0159eny odporov\u00fdmi materi\u00e1ly. Jedn\u00e1 se o speci\u00e1ln\u00ed l\u00e1tky, kter\u00e9 jsou odoln\u00e9 v\u016f\u010di vysok\u00fdm teplot\u00e1m a jejich hodnota odporu se s rostouc\u00ed nebo klesaj\u00edc\u00ed teplotou m\u011bn\u00ed jen nepatrn\u011b. Rezistivn\u00ed materi\u00e1ly nav\u00edc nejsou p\u0159\u00edli\u0161 citliv\u00e9 na chemick\u00e9 \u00fatoky, v\u010detn\u011b oxidace. Obvykle maj\u00ed tak\u00e9 dobrou mechanickou pevnost a rozm\u011brovou st\u00e1lost p\u0159i r\u016fzn\u00fdch teplotn\u00edch podm\u00ednk\u00e1ch.<\/p>\n<p>Odporov\u00e9 materi\u00e1ly nemus\u00ed b\u00fdt vyrobeny z kovu &#8211; mohou b\u00fdt nap\u0159\u00edklad keramick\u00e9, jako je sillit. Naproti tomu odporov\u00e9 vodi\u010de se obvykle vyr\u00e1b\u011bj\u00ed z odporov\u00fdch materi\u00e1l\u016f, kter\u00e9 jsou slitinami kov\u016f.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-fac4114 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fac4114\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-e9596c1\" data-id=\"e9596c1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9c2edfa elementor-widget elementor-widget-text-editor\" data-id=\"9c2edfa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4>Kantal<\/h4>\n<p>Kantal (tak\u00e9 kanthal) je slitina \u017eeleza a chromu, \u010dasto s p\u0159\u00edm\u011bs\u00ed kobaltu nebo hlin\u00edku. V z\u00e1vislosti na p\u0159esn\u00e9m slo\u017een\u00ed a \u00faprav\u011b m\u016f\u017ee kantal pracovat p\u0159i teplot\u00e1ch a\u017e 1300-1400 \u00b0C. Slitina m\u00e1 magnetick\u00e9 vlastnosti.<\/p>\n<h4>Chromonickel<\/h4>\n<p>Chromonikl (tak\u00e9: chromonikl, nichrom) je slitina niklu s chromem v pom\u011bru p\u0159ibli\u017en\u011b 4:1. Pou\u017e\u00edv\u00e1 se k v\u00fdrob\u011b korozivzdorn\u00fdch odporov\u00fdch dr\u00e1t\u016f s trvalou provozn\u00ed teplotou nejv\u00fd\u0161e 1100-1200 \u00b0C. Chromonikl nem\u00e1 \u017e\u00e1dn\u00e9 magnetick\u00e9 vlastnosti.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-072dd58\" data-id=\"072dd58\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d3f0148 elementor-widget elementor-widget-image\" data-id=\"d3f0148\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2023\/03\/16669_4.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"16669_4\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NTg3NDEsInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLmN6XC9ibG9nXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIzXC8wM1wvMTY2NjlfNC5qcGcifQ%3D%3D\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/16669_4-1024x1024.jpg\" class=\"attachment-large size-large wp-image-58741\" alt=\"\" srcset=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/16669_4-1024x1024.jpg 1024w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/16669_4-300x300.jpg 300w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/16669_4-150x150.jpg 150w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/16669_4-768x768.jpg 768w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/16669_4.jpg 1080w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Kanthalov\u00e9 odporov\u00e9 dr\u00e1ty.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-fb19048 elementor-widget elementor-widget-text-editor\" data-id=\"fb19048\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4>Slitiny m\u011bdi<\/h4>\n<p>Pro odporov\u00e9 dr\u00e1ty se pou\u017e\u00edvaj\u00ed tak\u00e9 r\u016fzn\u00e9 slitiny m\u011bdi, v\u010detn\u011b m\u011b\u010f-niklu (nap\u0159\u00edklad konstantan, co\u017e je slitina m\u011bdi a niklu v pom\u011bru 3:2), manganu (slitina m\u011bdi s manganem a p\u0159\u00edm\u011bs\u00ed niklu) nebo niklu (slitina m\u011bdi s niklem a p\u0159\u00edm\u011bs\u00ed ho\u0159\u010d\u00edku nebo zinku).<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6bda5a1 elementor-widget elementor-widget-heading\" data-id=\"6bda5a1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><h2 data-elementor-setting-key=\"title\" data-pen-placeholder=\"Pisz tutaj...\" style=\"font-family: var( --e-global-typography-primary-font-family ), Sans-serif;font-weight: var( --e-global-typography-primary-font-weight )\">K \u010demu slou\u017e\u00ed odporov\u00fd dr\u00e1t?<\/h2><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-f565f13 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f565f13\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-a4d31d9\" data-id=\"a4d31d9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0287480 elementor-widget elementor-widget-image\" data-id=\"0287480\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2023\/03\/woman-s-hand-holds-black-hair-dryer-black-background-accessory-beauty-1.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"woman-s-hand-holds-black-hair-dryer-black-background-accessory-beauty\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NTg3NDQsInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLmN6XC9ibG9nXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIzXC8wM1wvd29tYW4tcy1oYW5kLWhvbGRzLWJsYWNrLWhhaXItZHJ5ZXItYmxhY2stYmFja2dyb3VuZC1hY2Nlc3NvcnktYmVhdXR5LTEuanBnIn0%3D\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/woman-s-hand-holds-black-hair-dryer-black-background-accessory-beauty-1-1024x768.jpg\" class=\"attachment-large size-large wp-image-58744\" alt=\"\" srcset=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/woman-s-hand-holds-black-hair-dryer-black-background-accessory-beauty-1-1024x768.jpg 1024w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/woman-s-hand-holds-black-hair-dryer-black-background-accessory-beauty-1-300x225.jpg 300w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/woman-s-hand-holds-black-hair-dryer-black-background-accessory-beauty-1-768x576.jpg 768w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/woman-s-hand-holds-black-hair-dryer-black-background-accessory-beauty-1.jpg 1080w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Odporov\u00e9 vodi\u010de se nach\u00e1zej\u00ed v mnoha za\u0159\u00edzen\u00edch, kter\u00e1 denn\u011b pou\u017e\u00edv\u00e1me.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-806cca6\" data-id=\"806cca6\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e2c2a73 elementor-widget elementor-widget-text-editor\" data-id=\"e2c2a73\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Odporov\u00e9 vodi\u010de se pou\u017e\u00edvaj\u00ed ve velmi \u0161irok\u00e9 \u0161k\u00e1le aplikac\u00ed v mnoha za\u0159\u00edzen\u00edch a p\u0159\u00edstroj\u00edch. Pat\u0159\u00ed mezi n\u011b:<\/p>\n<ul style=\"font-size: 16px; background-color: #ffffff;\">\n<li style=\"font-size: 16px;\">topn\u00e1 t\u011blesa a topn\u00e9 spir\u00e1ly, kter\u00e9 jsou sou\u010d\u00e1st\u00ed spot\u0159ebi\u010d\u016f, jako jsou pra\u010dky, su\u0161i\u010dky, my\u010dky n\u00e1dob\u00ed, elektronick\u00e9 cigarety, elektrick\u00e9 zapalova\u010de, oh\u0159\u00edva\u010de, spor\u00e1ky a trouby, rychlovarn\u00e9 konvice a v\u0161echny ostatn\u00ed spot\u0159ebi\u010de vybaven\u00e9 topn\u00fdmi t\u011blesy, kter\u00e1 p\u0159em\u011b\u0148uj\u00ed elekt\u0159inu na teplo;<\/li>\n<li style=\"font-size: 16px;\">stroje na \u010din\u011bn\u00ed, pyrografii, pe\u010det\u011bn\u00ed a balen\u00ed;<\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-26b058e elementor-widget elementor-widget-spacer\" data-id=\"26b058e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c565e04 elementor-widget elementor-widget-text-editor\" data-id=\"c565e04\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul style=\"font-size: 16px; background-color: #ffffff;\">\n<li style=\"font-size: 16px;\">p\u00e1je\u010dky a p\u00e1jec\u00ed stanice;<\/li>\n<li style=\"font-size: 16px;\">\u0159ezac\u00ed za\u0159\u00edzen\u00ed pro \u0159ez\u00e1n\u00ed a tvarov\u00e1n\u00ed za tepla, nej\u010dast\u011bji ur\u010den\u00e9 pro pou\u017eit\u00ed s materi\u00e1ly, jako je polystyren, styrodur, akryl, plexisklo a dal\u0161\u00ed um\u011bl\u00e9 hmoty;<\/li>\n<li style=\"font-size: 16px;\">m\u011b\u0159ic\u00ed p\u0159\u00edstroje pou\u017e\u00edvaj\u00edc\u00ed termo\u010dleny (termo\u010dl\u00e1nky);<\/li>\n<li style=\"font-size: 16px;\">rezistory, zejm\u00e9na pro pou\u017eit\u00ed p\u0159i vysok\u00fdch teplot\u00e1ch.<\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fa5dda3 elementor-widget elementor-widget-heading\" data-id=\"fa5dda3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><h2 data-elementor-setting-key=\"title\" data-pen-placeholder=\"Pisz tutaj...\" style=\"font-family: var( --e-global-typography-primary-font-family ), Sans-serif;font-weight: var( --e-global-typography-primary-font-weight )\">Parametry odporov\u00e9ho dr\u00e1tu<\/h2><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3230b68 elementor-widget elementor-widget-text-editor\" data-id=\"3230b68\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Odporov\u00e9 dr\u00e1ty se li\u0161\u00ed \u0159adou vlastnost\u00ed. Nejd\u016fle\u017eit\u011bj\u0161\u00ed z nich jsou odpor, maxim\u00e1ln\u00ed provozn\u00ed teplota nebo pr\u016fm\u011br.<\/p>\n<h3>Rezistence<\/h3>\n<p>Odpor je z\u00e1kladn\u00ed vlastnost\u00ed odporov\u00e9ho dr\u00e1tu, kter\u00e1 se ud\u00e1v\u00e1 v ohmech na b\u011b\u017en\u00fd metr. Nap\u0159\u00edklad hodnota odporu 28 \u03a9\/mb znamen\u00e1, \u017ee metr dr\u00e1tu instalovan\u00e9ho v obvodu odpov\u00edd\u00e1 rezistoru 28 \u03a9.<\/p>\n<h3>Maxim\u00e1ln\u00ed provozn\u00ed teplota<\/h3>\n<p>Maxim\u00e1ln\u00ed pracovn\u00ed teplota z\u00e1vis\u00ed p\u0159edev\u0161\u00edm na materi\u00e1lu dr\u00e1tu a obvykle dosahuje a\u017e 1 400 \u00b0C u dr\u00e1t\u016f z kantalupu a o n\u011bco m\u00e9n\u011b u dr\u00e1t\u016f z m\u011bdi nebo slitin niklu. Je t\u0159eba pamatovat na to, abyste nep\u0159ekro\u010dili doporu\u010denou provozn\u00ed teplotu odporov\u00e9ho dr\u00e1tu, proto\u017ee to m\u016f\u017ee m\u00edt nep\u0159\u00edzniv\u00fd vliv na v\u00fdkon cel\u00e9ho syst\u00e9mu (a tak\u00e9 na jeho bezpe\u010dnost).<\/p>\n<h3>Pr\u016fm\u011br<\/h3>\n<p>Pr\u016fm\u011br odporov\u00e9ho dr\u00e1tu se obvykle ud\u00e1v\u00e1 v syst\u00e9mu AWG (American Wire Gauge), co\u017e je standardizovan\u00e1 m\u00edra pr\u016f\u0159ezu dr\u00e1t\u016f a kabel\u016f. V evropsk\u00fdch zem\u00edch se nav\u00edc uv\u00e1d\u00ed pr\u016fm\u011br dr\u00e1tu v milimetrech. Pr\u016fm\u011br odporov\u00e9ho dr\u00e1tu ovliv\u0148uje maxim\u00e1ln\u00ed proud, kter\u00fd j\u00edm m\u016f\u017ee prot\u00e9kat.<\/p>\n<h3>Dal\u0161\u00ed parametry<\/h3>\n<p>Odporov\u00e9 dr\u00e1ty se li\u0161\u00ed tak\u00e9 parametry, jako je d\u00e9lka (ovliv\u0148uj\u00edc\u00ed nap\u0159\u00edklad cenu za metr), mechanick\u00e1 pevnost nebo odolnost proti korozi. Mnoh\u00e9 z t\u011bchto vlastnost\u00ed souvisej\u00ed nejen s materi\u00e1lem dr\u00e1tu, ale tak\u00e9 se zp\u016fsobem jeho v\u00fdroby a dokonce i s podm\u00ednkami skladov\u00e1n\u00ed.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ffa6791 elementor-widget elementor-widget-heading\" data-id=\"ffa6791\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><h3 data-elementor-setting-key=\"title\" data-pen-placeholder=\"Pisz tutaj...\" style=\"font-family: var( --e-global-typography-primary-font-family ), Sans-serif;font-weight: var( --e-global-typography-primary-font-weight )\">Jak vybrat spr\u00e1vn\u00fd odporov\u00fd dr\u00e1t?<\/h3><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-34d9458 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"34d9458\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-32998be\" data-id=\"32998be\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fa05b1e elementor-widget elementor-widget-text-editor\" data-id=\"fa05b1e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Nejjednodu\u0161\u0161\u00ed zp\u016fsob, jak vybrat spr\u00e1vn\u00fd odporov\u00fd dr\u00e1t pro zam\u00fd\u0161lenou aplikaci, je pou\u017e\u00edt proudov\u011b-teplotn\u00ed diagram, kter\u00fd je sou\u010d\u00e1st\u00ed technick\u00e9 dokumentace v\u00fdrobk\u016f. To umo\u017e\u0148uje dos\u00e1hnout p\u0159esn\u00fdch hodnot teploty nebo odporu nastaven\u00edm d\u00e9lky odporov\u00e9ho dr\u00e1tu a \u00fapravou parametr\u016f j\u00edm proch\u00e1zej\u00edc\u00edho elektrick\u00e9ho proudu.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-3e2f76f\" data-id=\"3e2f76f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1953bf5 elementor-widget elementor-widget-image\" data-id=\"1953bf5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2023\/03\/16659_2.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"16659_2\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NTg3NDAsInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLmN6XC9ibG9nXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIzXC8wM1wvMTY2NTlfMi5qcGcifQ%3D%3D\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"520\" src=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/16659_2-1024x665.jpg\" class=\"attachment-large size-large wp-image-58740\" alt=\"\" srcset=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/16659_2-1024x665.jpg 1024w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/16659_2-300x195.jpg 300w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/16659_2-768x498.jpg 768w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/16659_2.jpg 1080w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Obchod Botland nab\u00edz\u00ed \u0161irok\u00fd sortiment odporov\u00fdch dr\u00e1t\u016f.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13e0dac elementor-align-center elementor-widget elementor-widget-button\" data-id=\"13e0dac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/botland.cz\/1152-odporove-draty\" target=\"_blank\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">POD\u00cdVEJTE SE NA<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Odporov\u00fd dr\u00e1t je d\u016fle\u017eitou sou\u010d\u00e1st\u00ed mnoha za\u0159\u00edzen\u00ed, jako jsou oh\u0159\u00edva\u010de nebo za\u0159\u00edzen\u00ed na \u0159ez\u00e1n\u00ed polystyrenu. Zjist\u011bte, co jsou odporov\u00e9 dr\u00e1ty a jak funguj\u00ed!<\/p>\n","protected":false},"author":22,"featured_media":63518,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[548,549],"tags":[],"class_list":["post-66773","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektronika-cs","category-kompendium-cs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Odporov\u00fd dr\u00e1t - co to je a kde se pou\u017e\u00edv\u00e1? - Botland<\/title>\n<meta name=\"description\" content=\"Odporov\u00fd dr\u00e1t je nezbytnou sou\u010d\u00e1st\u00ed za\u0159\u00edzen\u00ed, jako jsou topn\u00e1 t\u011blesa nebo termo\u010dl\u00e1nky. 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