{"id":77975,"date":"2017-01-05T12:36:10","date_gmt":"2017-01-05T11:36:10","guid":{"rendered":"https:\/\/coelectrix.com\/como-saber-a-seccao-transversal-de-um-cabo-eletrico"},"modified":"2025-08-19T05:52:37","modified_gmt":"2025-08-19T03:52:37","slug":"como-saber-a-seccao-transversal-de-um-cabo-eletrico","status":"publish","type":"post","link":"https:\/\/coelectrix.com\/pt-pt\/blogue\/seccao-de-um-cabo-eletrico","title":{"rendered":"Como saber a sec\u00e7\u00e3o transversal de um cabo el\u00e9trico?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"77975\" class=\"elementor elementor-77975 elementor-1041\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-13b023b9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"13b023b9\" 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-21109bc5\" data-id=\"21109bc5\" 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-67a2e62a elementor-widget elementor-widget-text-editor\" data-id=\"67a2e62a\" 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><span style=\"font-family: helvetica, arial, sans-serif;\">A sec\u00e7\u00e3o transversal de um cabo el\u00e9trico<\/span><\/p><p><span style=\"font-family: helvetica, arial, sans-serif;\">Como retalhista especializado em <a href=\"http:\/\/www.coelectrix.com\/cable-electrico\"><strong>cabos el\u00e9ctricos<\/strong><\/a>Todos os dias recebemos pedidos de informa\u00e7\u00e3o atrav\u00e9s de formul\u00e1rios como: <strong>Como saber a sec\u00e7\u00e3o transversal de um cabo el\u00e9trico?<\/strong> ou <strong>Como medir a sec\u00e7\u00e3o transversal de um cabo?<\/strong> ou <strong>O que \u00e9 a sec\u00e7\u00e3o transversal de um cabo?<\/strong> <\/span><\/p><p><span style=\"font-family: helvetica, arial, sans-serif;\">Estas perguntas repetem-se muitas vezes e, para as colocar por escrito e torn\u00e1-las acess\u00edveis a todos, vou explicar de forma simples e clara as chaves para saber exatamente <strong>qual \u00e9 a sec\u00e7\u00e3o transversal de um cabo<\/strong>, como medi-la e como calcul\u00e1-la.<\/span><\/p><p><span style=\"font-family: helvetica, arial, sans-serif;\">Quando compramos um <strong>cabo el\u00e9trico<\/strong>, o fabricante fala sempre da sec\u00e7\u00e3o transversal do cabo, <strong>cabo de 1,5 mm de<\/strong> sec\u00e7\u00e3o transversal, <strong>cabo de 10 mm de<\/strong> sec\u00e7\u00e3o transversal, etc&#8230; <\/span><\/p><p><span style=\"font-family: helvetica, arial, sans-serif;\">Na realidade, se pegarmos num <strong>cabo de sec\u00e7\u00e3o transversal de 10 mm<\/strong> e o medirmos com um paqu\u00edmetro, nunca nos dar\u00e1 10 mm, e \u00e9 aqui que entra a quest\u00e3o cl\u00e1ssica&#8230;<\/span><\/p><p><a href=\"https:\/\/coelectrix.com\/pt-pt\/cabo-eletrico\"><img fetchpriority=\"high\" decoding=\"async\" class=\"solo-pc alignnone wp-image-46041 size-full\" src=\"https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/Banner-Coelectrix-Cables-electricos.jpg\" alt=\"Comprar cables el\u00e9ctricos\" width=\"1000\" height=\"250\" srcset=\"https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/Banner-Coelectrix-Cables-electricos.jpg 1000w, https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/Banner-Coelectrix-Cables-electricos-300x75.jpg 300w, https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/Banner-Coelectrix-Cables-electricos-768x192.jpg 768w, https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/Banner-Coelectrix-Cables-electricos-416x104.jpg 416w, https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/Banner-Coelectrix-Cables-electricos-64x16.jpg 64w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/a><\/p><h2><a href=\"https:\/\/coelectrix.com\/pt-pt\/cabo-eletrico\"><img decoding=\"async\" class=\"solo-movil alignnone wp-image-46042 size-full\" src=\"https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/Responsive-Banner-Cables-electricos-Coelectrix.jpg\" alt=\"\" width=\"600\" height=\"647\" srcset=\"https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/Responsive-Banner-Cables-electricos-Coelectrix.jpg 600w, https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/Responsive-Banner-Cables-electricos-Coelectrix-278x300.jpg 278w, https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/Responsive-Banner-Cables-electricos-Coelectrix-416x449.jpg 416w, https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/Responsive-Banner-Cables-electricos-Coelectrix-64x69.jpg 64w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/h2><h2><span style=\"font-family: helvetica, arial, sans-serif;\">Como saber a medida real de um cabo el\u00e9trico?<\/span><\/h2><p><span style=\"font-family: helvetica, arial, sans-serif;\">Na verdade, a sec\u00e7\u00e3o transversal de um <strong>cabo el\u00e9trico<\/strong> \u00e9 calculada com uma f\u00f3rmula simples da \u00e1rea de um c\u00edrculo (A=Pi x R\u00b2), mas para aqueles que n\u00e3o querem fazer os c\u00e1lculos, aqui est\u00e1 uma tabela de convers\u00e3o da sec\u00e7\u00e3o transversal do cabo em mil\u00edmetros \u00b2 para o di\u00e2metro real do cabo em mm.<\/span><\/p><p><img decoding=\"async\" class=\"alignnone size-medium wp-image-1070\" src=\"http:\/\/www.coelectrix.com\/wp-content\/uploads\/2017\/01\/seccion-de-cable-167x300.jpg\" alt=\"\" width=\"167\" height=\"300\" srcset=\"https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/seccion-de-cable-167x300.jpg 167w, https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/seccion-de-cable-64x115.jpg 64w, https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/seccion-de-cable.jpg 250w\" sizes=\"(max-width: 167px) 100vw, 167px\" \/><\/p><p><span style=\"font-family: helvetica, arial, sans-serif;\">Tenha sempre em mente que a medida real que tomamos em mil\u00edmetros deve ser sempre apenas a do <strong>cobre<\/strong>, uma vez que a bainha de PVC tenha sido removida do cabo. <\/span><\/p><p><span style=\"font-family: helvetica, arial, sans-serif;\">Tamb\u00e9m \u00e9 preciso ter em conta que quando se efectua a medi\u00e7\u00e3o do cobre nu, por ser flex\u00edvel, pode sempre haver uma varia\u00e7\u00e3o de alguns mil\u00edmetros. Nos testes que efectuei, tentei primeiro entran\u00e7ar o cobre para que ficasse consistente e depois fazer a medi\u00e7\u00e3o com um paqu\u00edmetro o mais pr\u00f3ximo poss\u00edvel do PVC para que n\u00e3o ficasse deformado. <\/span><\/p><p><span style=\"font-family: helvetica, arial, sans-serif;\">Com esta tabela podemos agora saber quantos mil\u00edmetros reais mede um <strong>cabo el\u00e9trico<\/strong> conhecendo a <strong>sec\u00e7\u00e3o<\/strong>, ou pelo contr\u00e1rio, conhecendo a medida de um cabo em mil\u00edmetros, com a tabela, podemos conhecer a sec\u00e7\u00e3o.<\/span><\/p><p>Nesta outra tabela, medimos o cabo H07V-k em todas as sec\u00e7\u00f5es, desta vez a partir do exterior. Ou seja, na tabela pode ver a medida real em mm do di\u00e2metro do cabo na sec\u00e7\u00e3o que desejar.<\/p><p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-6125\" src=\"https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/seccion-cablefootoo-300x169.jpg\" alt=\"seccion del cable\" width=\"300\" height=\"169\" srcset=\"https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/seccion-cablefootoo-300x169.jpg 300w, https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/seccion-cablefootoo-416x234.jpg 416w, https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/seccion-cablefootoo-64x36.jpg 64w, https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/seccion-cablefootoo-768x432.jpg 768w, https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/seccion-cablefootoo-1024x576.jpg 1024w, https:\/\/coelectrix.com\/wp-content\/uploads\/2017\/01\/seccion-cablefootoo.jpg 1280w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p><p>Tamb\u00e9m pode estar interessado em saber <a href=\"http:\/\/www.coelectrix.com\/que-amperaje-soporta-un-cable-electrico\"><strong>a amperagem que um cabo el\u00e9trico pode suportar<\/strong><\/a>Explico-o neste outro post:<\/p><h3><a href=\"http:\/\/www.coelectrix.com\/que-amperaje-soporta-un-cable-electrico\">Que amperagem suporta um cabo el\u00e9trico?<\/a><\/h3><p>Bem, este \u00e9 o fim deste post, espero que o tenha ajudado e se tiver alguma d\u00favida pode deixar o seu coment\u00e1rio e terei todo o gosto em ajud\u00e1-lo.<\/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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-68a9fb2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"68a9fb2\" 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-top-column elementor-element elementor-element-5834f5b\" data-id=\"5834f5b\" 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-454e3f4 elementor-widget elementor-widget-heading\" data-id=\"454e3f4\" 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<h3 class=\"elementor-heading-title elementor-size-default\">Pode utilizar esta calculadora:<\/h3>\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-top-column elementor-element elementor-element-ffb55ff\" data-id=\"ffb55ff\" 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-0d39cb1 elementor-widget elementor-widget-shortcode\" data-id=\"0d39cb1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><p><a class=\"button sec-cable\" href=\"#\">Calculadora de secci\u00f3n del cable<\/a><\/p>\n <p><a class=\"button sec-cable\" href=\"#\">Calculadora de secci\u00f3n del cable<\/a><\/p>\n.<\/div>\n\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>\n\t\t","protected":false},"excerpt":{"rendered":"<p>A sec\u00e7\u00e3o transversal de um cabo el\u00e9trico Como retalhista especializado em cabos el\u00e9ctricosTodos os dias recebemos pedidos de informa\u00e7\u00e3o atrav\u00e9s de formul\u00e1rios como: Como saber a sec\u00e7\u00e3o transversal de um cabo el\u00e9trico? ou Como medir a sec\u00e7\u00e3o transversal de um cabo? ou O que \u00e9 a sec\u00e7\u00e3o transversal de um cabo? Estas perguntas repetem-se muitas [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":74023,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1451],"tags":[],"class_list":["post-77975","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cabos-electricos"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Como saber a sec\u00e7\u00e3o transversal de um cabo el\u00e9trico | Coelectrix.com<\/title>\n<meta name=\"description\" content=\"Aqui encontrar\u00e1 uma tabela para converter a sec\u00e7\u00e3o transversal de um cabo el\u00e9trico para a medida real em mil\u00edmetros, para saber qual \u00e9 a medida real de um cabo.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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