{"id":2976,"date":"2026-10-20T15:04:35","date_gmt":"2026-10-20T14:04:35","guid":{"rendered":"https:\/\/wpcalc.com\/pt\/engenharia\/calculadora-ocupacao-eletroduto-nec\/"},"modified":"2026-10-20T15:04:35","modified_gmt":"2026-10-20T14:04:35","slug":"calculadora-ocupacao-eletroduto-nec","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/pt\/engenharia\/calculadora-ocupacao-eletroduto-nec\/","title":{"rendered":"Calculadora de ocupa\u00e7\u00e3o de eletroduto (NEC)"},"content":{"rendered":"<section class=\"not-prose calculator-box\" aria-labelledby=\"calculator-title\"><div class=\"flex items-baseline sm:items-center justify-between gap-2 sm:gap-3\"><div class=\"flex flex-col sm:flex-row sm:items-center gap-2\"><span class=\"icon icon-calculator text-primary-700! text-base! dark:text-primary-300!\" aria-hidden=\"true\"><\/span><h2 id=\"calculator-title\" class=\"text-lg font-display font-bold\">Verifique a ocupa\u00e7\u00e3o do eletroduto para sua lista de fios<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"2976\" data-favorite-title=\"Ocupa\u00e7\u00e3o do eletroduto\" data-favorite-url=\"https:\/\/wpcalc.com\/pt\/engenharia\/calculadora-ocupacao-eletroduto-nec\/\" data-favorite-excerpt=\"Verifique a ocupa\u00e7\u00e3o do eletroduto conforme a NEC para at\u00e9 seis grupos de condutores isolados. Selecione o tipo de eletroduto e o tamanho nominal, e informe o isolamento, a bitola e a quantidade de cada grupo de fios.\" aria-label=\"Adicionar aos favoritos\" data-favorite-icon=\"icon icon-electrical\">\n    <span class=\"icon icon-shape-star-empty\" aria-hidden=\"true\"><\/span>\n  <\/button>\n  <div class=\"calcdash-favorite__tip\" aria-hidden=\"true\">\n   <span class=\"favorite-tooltip\" id=\"favorite-tooltip\"><\/span>\n  <\/div>\n  <span class=\"sr-only\" role=\"status\" id=\"favorite-status\"><\/span>\n<\/div><\/div><form action=\"https:\/\/wpcalc.com\/pt\/engenharia\/calculadora-ocupacao-eletroduto-nec\/\" method=\"POST\" class=\"calculator\" id=\"calculator-2976\" data-post=\"2976\"><fieldset class=\"fieldset-input is-3\"><legend class=\"sr-only\">Campos de entrada<\/legend><div class=\"field\" id=\"input-1\"><label for=\"field-1\">Tipo de eletroduto<\/label><div class=\"grid grid-cols-1\"><select id=\"field-1\" name=\"tipo_de_eletroduto\"><option value=\"emt\" selected>EMT<\/option><option value=\"rmc\">RMC<\/option><option value=\"pvc40\">PVC Schedule 40<\/option><option value=\"pvc80\">PVC Schedule 80<\/option><option value=\"fmc\">FMC<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-2\"><label for=\"field-2\">Bitola nominal<\/label><div class=\"grid grid-cols-1\"><select id=\"field-2\" name=\"bitola_nominal\"><option value=\"s12\" selected>1\/2 pol<\/option><option value=\"s34\">3\/4 pol<\/option><option value=\"s1\">1 pol<\/option><option value=\"s114\">1-1\/4 pol<\/option><option value=\"s112\">1-1\/2 pol<\/option><option value=\"s2\">2 pol<\/option><option value=\"s212\">2-1\/2 pol<\/option><option value=\"s3\">3 pol<\/option><option value=\"s312\">3-1\/2 pol<\/option><option value=\"s4\">4 pol<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"is-single field\" id=\"input-3\"><span class=\"font-semibold\">Linha de fio 1<\/span><\/div><div class=\"field\" id=\"input-4\"><label for=\"field-4\">Isola\u00e7\u00e3o<\/label><div class=\"grid grid-cols-1\"><select id=\"field-4\" name=\"isolao\"><option value=\"thhn\" selected>THHN\/THWN-2<\/option><option value=\"xhhw\">XHHW-2<\/option><option value=\"thw\">THW&#039;,<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-5\"><label for=\"field-5\">Wire size<\/label><div class=\"grid grid-cols-1\"><select id=\"field-5\" name=\"wire_size\"><option value=\"a14\">14 AWG<\/option><option value=\"a12\" selected>12 AWG<\/option><option value=\"a10\">10 AWG<\/option><option value=\"a8\">8 AWG<\/option><option value=\"a6\">6 AWG<\/option><option value=\"a4\">4 AWG<\/option><option value=\"a3\">3 AWG<\/option><option value=\"a2\">2 AWG<\/option><option value=\"a1\">1 AWG<\/option><option value=\"a1_0\">1\/0 AWG<\/option><option value=\"a2_0\">2\/0 AWG<\/option><option value=\"a3_0\">3\/0 AWG<\/option><option value=\"a4_0\">4\/0 AWG<\/option><option value=\"k250\">250 kcmil<\/option><option value=\"k300\">300 kcmil<\/option><option value=\"k350\">350 kcmil<\/option><option value=\"k400\">400 kcmil<\/option><option value=\"k500\">500 kcmil<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-6\"><label for=\"field-6\">Quantity<\/label><input type=\"text\" name=\"quantity\" id=\"field-6\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"3\"\/><\/div><div class=\"is-single field\" id=\"input-7\"><span class=\"font-semibold\">Wire row 2<\/span><\/div><div class=\"field\" id=\"input-8\"><label for=\"field-8\">Insulation<\/label><div class=\"grid grid-cols-1\"><select id=\"field-8\" name=\"insulation\"><option value=\"thhn\" selected>THHN\/THWN-2<\/option><option value=\"xhhw\">XHHW-2<\/option><option value=\"thw\">THW<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-9\"><label for=\"field-9\">Wire size<\/label><div class=\"grid grid-cols-1\"><select id=\"field-9\" name=\"wire_size\"><option value=\"a14\">14 AWG<\/option><option value=\"a12\" selected>12 AWG<\/option><option value=\"a10\">10 AWG<\/option><option value=\"a8\">8 AWG<\/option><option value=\"a6\">6 AWG<\/option><option value=\"a4\">4 AWG<\/option><option value=\"a3\">3 AWG<\/option><option value=\"a2\">2 AWG<\/option><option value=\"a1\">1 AWG<\/option><option value=\"a1_0\">1\/0 AWG<\/option><option value=\"a2_0\">2\/0 AWG<\/option><option value=\"a3_0\">3\/0 AWG<\/option><option value=\"a4_0\">4\/0 AWG<\/option><option value=\"k250\">250 kcmil<\/option><option value=\"k300\">300 kcmil<\/option><option value=\"k350\">350 kcmil<\/option><option value=\"k400\">400 kcmil<\/option><option value=\"k500\">500 kcmil<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-10\"><label for=\"field-10\">Quantity<\/label><input type=\"text\" name=\"quantity\" id=\"field-10\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"0\"\/><\/div><div class=\"is-single field\" id=\"input-11\"><span class=\"font-semibold\">Wire row 3<\/span><\/div><div class=\"field\" id=\"input-12\"><label for=\"field-12\">Insulation<\/label><div class=\"grid grid-cols-1\"><select id=\"field-12\" name=\"insulation\"><option value=\"thhn\" selected>THHN\/THWN-2<\/option><option value=\"xhhw\">XHHW-2<\/option><option value=\"thw\">THW<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-13\"><label for=\"field-13\">Wire size<\/label><div class=\"grid grid-cols-1\"><select id=\"field-13\" name=\"wire_size\"><option value=\"a14\">14 AWG<\/option><option value=\"a12\" selected>12 AWG<\/option><option value=\"a10\">10 AWG<\/option><option value=\"a8\">8 AWG<\/option><option value=\"a6\">6 AWG<\/option><option value=\"a4\">4 AWG<\/option><option value=\"a3\">3 AWG<\/option><option value=\"a2\">2 AWG<\/option><option value=\"a1\">1 AWG<\/option><option value=\"a1_0\">1\/0 AWG<\/option><option value=\"a2_0\">2\/0 AWG<\/option><option value=\"a3_0\">3\/0 AWG<\/option><option value=\"a4_0\">4\/0 AWG<\/option><option value=\"k250\">250 kcmil<\/option><option value=\"k300\">300 kcmil<\/option><option value=\"k350\">350 kcmil<\/option><option value=\"k400\">400 kcmil<\/option><option value=\"k500\">500 kcmil<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-14\"><label for=\"field-14\">Quantity<\/label><input type=\"text\" name=\"quantity\" id=\"field-14\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"0\"\/><\/div><div class=\"is-single field\" id=\"input-15\"><span class=\"font-semibold\">Wire row 4<\/span><\/div><div class=\"field\" id=\"input-16\"><label for=\"field-16\">Insulation<\/label><div class=\"grid grid-cols-1\"><select id=\"field-16\" name=\"insulation\"><option value=\"thhn\" selected>THHN\/THWN-2<\/option><option value=\"xhhw\">XHHW-2<\/option><option value=\"thw\">THW<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-17\"><label for=\"field-17\">Wire size<\/label><div class=\"grid grid-cols-1\"><select id=\"field-17\" name=\"wire_size\"><option value=\"a14\">14 AWG<\/option><option value=\"a12\" selected>12 AWG<\/option><option value=\"a10\">10 AWG<\/option><option value=\"a8\">8 AWG<\/option><option value=\"a6\">6 AWG<\/option><option value=\"a4\">4 AWG<\/option><option value=\"a3\">3 AWG<\/option><option value=\"a2\">2 AWG<\/option><option value=\"a1\">1 AWG<\/option><option value=\"a1_0\">1\/0 AWG<\/option><option value=\"a2_0\">2\/0 AWG<\/option><option value=\"a3_0\">3\/0 AWG<\/option><option value=\"a4_0\">4\/0 AWG<\/option><option value=\"k250\">250 kcmil<\/option><option value=\"k300\">300 kcmil<\/option><option value=\"k350\">350 kcmil<\/option><option value=\"k400\">400 kcmil<\/option><option value=\"k500\">500 kcmil<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-18\"><label for=\"field-18\">Quantity<\/label><input type=\"text\" name=\"quantity\" id=\"field-18\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"0\"\/><\/div><div class=\"is-single field\" id=\"input-19\"><span class=\"font-semibold\">Wire row 5<\/span><\/div><div class=\"field\" id=\"input-20\"><label for=\"field-20\">Insulation<\/label><div class=\"grid grid-cols-1\"><select id=\"field-20\" name=\"insulation\"><option value=\"thhn\" selected>THHN\/THWN-2<\/option><option value=\"xhhw\">XHHW-2<\/option><option value=\"thw\">THW<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-21\"><label for=\"field-21\">Wire size<\/label><div class=\"grid grid-cols-1\"><select id=\"field-21\" name=\"wire_size\"><option value=\"a14\">14 AWG<\/option><option value=\"a12\" selected>12 AWG<\/option><option value=\"a10\">10 AWG<\/option><option value=\"a8\">8 AWG<\/option><option value=\"a6\">6 AWG<\/option><option value=\"a4\">4 AWG<\/option><option value=\"a3\">3 AWG<\/option><option value=\"a2\">2 AWG<\/option><option value=\"a1\">1 AWG<\/option><option value=\"a1_0\">1\/0 AWG<\/option><option value=\"a2_0\">2\/0 AWG<\/option><option value=\"a3_0\">3\/0 AWG<\/option><option value=\"a4_0\">4\/0 AWG<\/option><option value=\"k250\">250 kcmil<\/option><option value=\"k300\">300 kcmil<\/option><option value=\"k350\">350 kcmil<\/option><option value=\"k400\">400 kcmil<\/option><option value=\"k500\">500 kcmil<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-22\"><label for=\"field-22\">Quantity<\/label><input type=\"text\" name=\"quantity\" id=\"field-22\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"0\"\/><\/div><div class=\"is-single field\" id=\"input-23\"><span class=\"font-semibold\">Wire row 6<\/span><\/div><div class=\"field\" id=\"input-24\"><label for=\"field-24\">Insulation<\/label><div class=\"grid grid-cols-1\"><select id=\"field-24\" name=\"insulation\"><option value=\"thhn\" selected>THHN\/THWN-2<\/option><option value=\"xhhw\">XHHW-2<\/option><option value=\"thw\">THW<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-25\"><label for=\"field-25\">Wire size<\/label><div class=\"grid grid-cols-1\"><select id=\"field-25\" name=\"wire_size\"><option value=\"a14\">14 AWG<\/option><option value=\"a12\" selected>12 AWG<\/option><option value=\"a10\">10 AWG<\/option><option value=\"a8\">8 AWG<\/option><option value=\"a6\">6 AWG<\/option><option value=\"a4\">4 AWG<\/option><option value=\"a3\">3 AWG<\/option><option value=\"a2\">2 AWG<\/option><option value=\"a1\">1 AWG<\/option><option value=\"a1_0\">1\/0 AWG<\/option><option value=\"a2_0\">2\/0 AWG<\/option><option value=\"a3_0\">3\/0 AWG<\/option><option value=\"a4_0\">4\/0 AWG<\/option><option value=\"k250\">250 kcmil<\/option><option value=\"k300\">300 kcmil<\/option><option value=\"k350\">350 kcmil<\/option><option value=\"k400\">400 kcmil<\/option><option value=\"k500\">500 kcmil<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-26\"><label for=\"field-26\">Quantity<\/label><input type=\"text\" name=\"quantity\" id=\"field-26\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"0\"\/><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Recalcular\" id=\"calculate-button\" data-post=\"2976\">Calcular<\/button><button type=\"reset\">Redefinir<\/button><\/div><div class=\"field is-checkbox hidden!\" id=\"field-auto-calc\"><input type=\"checkbox\" id=\"auto-calc\"><label for=\"auto-calc\">Calcular automaticamente<\/label><small>Se ativado, o resultado \u00e9 atualizado automaticamente quando voc\u00ea altera qualquer valor.<\/small><\/div><div class=\"fieldset-result is-hidden\" aria-labelledby=\"result-title\" aria-live=\"polite\" role=\"region\"> <h3 class=\"result-title bg-gradient-to-r from-primary-50 to-gray-50 dark:from-primary-900 dark:to-gray-800\" id=\"result-title\"><span class=\"icon icon-s-pulse\" aria-hidden=\"true\"><\/span> Conduit Fill Results<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>Total Wire Area<\/span><\/span><span class=\"field-value\" id=\"result-1\" data-unit=\"in\u00b2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-2\"><span class=\"field-title\"><span>Conduit Internal Area<\/span><\/span><span class=\"field-value\" id=\"result-2\" data-unit=\"in\u00b2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-3\"><span class=\"field-title\"><span>Conduit Fill<\/span><\/span><span class=\"field-value\" id=\"result-3\" data-unit=\"%\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-4\"><span class=\"field-title\"><span>Maximum Allowed Fill<\/span><\/span><span class=\"field-value\" id=\"result-4\" data-unit=\"%\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-5\"><span class=\"field-title\"><span>Fill Check<\/span><\/span><span class=\"field-value\" id=\"result-5\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-6\"><span class=\"field-title\"><span>Smallest Passing Trade Size<\/span><\/span><span class=\"field-value\" id=\"result-6\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-7\"><span class=\"field-title\"><span>Maximum Identical Wires<\/span><\/span><span class=\"field-value\" id=\"result-7\" data-unit=\"wires\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-8\"><span class=\"field-title\"><span>Calculation Details<\/span><\/span><span class=\"field-value\" id=\"result-8\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><\/div><div class=\"result-actions\"><button type=\"button\" class=\"copy-link\"><svg viewBox=\"0 0 20 20\" fill=\"currentColor\" aria-hidden=\"true\"><path d=\"M12.232 4.232a2.5 2.5 0 0 1 3.536 3.536l-1.225 1.224a.75.75 0 0 0 1.061 1.06l1.224-1.224a4 4 0 0 0-5.656-5.656l-3 3a4 4 0 0 0 .225 5.865.75.75 0 0 0 .977-1.138 2.5 2.5 0 0 1-.142-3.667l3-3Z\"\/><path d=\"M11.603 7.963a.75.75 0 0 0-.977 1.138 2.5 2.5 0 0 1 .142 3.667l-3 3a2.5 2.5 0 0 1-3.536-3.536l1.225-1.224a.75.75 0 0 0-1.061-1.06l-1.224 1.224a4 4 0 1 0 5.656 5.656l3-3a4 4 0 0 0-.225-5.865Z\"\/><\/svg><span class=\"copy-link__text\">Copiar link para este c\u00e1lculo<\/span><\/button><span class=\"sr-only\" role=\"status\" id=\"copy-link-status\"><\/span><\/div><\/div><a href=\"#respond\" class=\"hidden transition-opacity duration-300 opacity-0 w-50 text-sm justify-center items-center gap-2 px-4 py-2 rounded bg-gray-200 text-gray-700 hover:bg-gray-300\" id=\"leave-comment\"><span class=\"icon icon-comments\" aria-hidden=\"true\"><\/span>Deixar um coment\u00e1rio<\/a><\/form><\/section><section id=\"calc-reactions\" class=\"not-prose hidden my-12 bg-gradient-to-r from-primary-50 to-gray-50 border border-indigo-100 rounded-xl px-6 py-4 shadow-sm\" data-post=\"2976\" aria-live=\"polite\" aria-labelledby=\"calc-reactions-title\"><p id=\"calc-reactions-title\" class=\"text-sm text-gray-500 text-center mb-2\">O que voc\u00ea achou deste resultado?<\/p><div role=\"group\" aria-labelledby=\"calc-reactions-title\" class=\"grid grid-cols-3 sm:flex sm:flex-row sm:justify-around gap-4 sm:items-center sm:flex-wrap\"><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"like\"><span class=\"reaction-count\" data-reaction-count=\"like\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude00 <\/span><span class=\"reaction-description font-medium\">Curti <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"helpful\"><span class=\"reaction-count\" data-reaction-count=\"helpful\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\udca1 <\/span><span class=\"reaction-description font-medium\">\u00datil <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"confused\"><span class=\"reaction-count\" data-reaction-count=\"confused\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude15 <\/span><span class=\"reaction-description font-medium\">Confuso <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"disappointed\"><span class=\"reaction-count\" data-reaction-count=\"disappointed\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude1e <\/span><span class=\"reaction-description font-medium\">Decepcionado <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"inaccurate\"><span class=\"reaction-count\" data-reaction-count=\"inaccurate\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\u274c <\/span><span class=\"reaction-description font-medium\">Impreciso <\/span><\/button><\/div><div id=\"reaction-message\" class=\"hidden mt-8 rounded-md border border-primary-100 bg-white\/50 backdrop-blur-sm px-4 py-2 text-sm text-center shadow-sm\"><\/div><\/section><div class=\"calcdash-ad not-prose calcdash-ad--calc_result calcdash-ad--in-article\"><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-1721569815777345\" data-ad-slot=\"6317458308\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/div>\n<style id=\"wpcoderpro-inline-1\">.formula-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section class=\"formula-box\" aria-labelledby=\"formula-title\">\r\n\t<div id=\"formula-title\" class=\"not-prose font-display mb-4\"><span class=\"icon icon-formula\" aria-hidden=\"true\"><\/span><h2>F\u00f3rmula da ocupa\u00e7\u00e3o do eletroduto<\/h2><\/div>\r\n\t<figure class=\"not-prose formula\">\r\n\t\t<figcaption class=\"formula-title\">F\u00f3rmula<\/figcaption>\r\n\t\t<div class=\"text-base text-gray-800\" id=\"formula\">\n\\[\\begin{aligned}A_{\\mathrm{w}}&amp;=\\sum_i n_i a_i\\\\F&amp;=\\frac{A_{\\mathrm{w}}}{A_{\\mathrm{c}}}\\times100\\%\\end{aligned}\\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Onde:<\/strong><\/p>\n<ul>\n<li>\\(A_{\\mathrm{w}}\\) \u2014 \u00e1rea combinada de todos os fios (in\u00b2)<\/li>\n<li>\\(n_i\\) \u2014 quantidade de fios na linha \\(i\\)<\/li>\n<li>\\(a_i\\) \u2014 \u00e1rea de um fio da linha \\(i\\), incluindo o isolamento (in\u00b2)<\/li>\n<li>\\(A_{\\mathrm{c}}\\) \u2014 \u00e1rea interna do eletroduto selecionado (in\u00b2)<\/li>\n<li>\\(F\\) \u2014 porcentagem da \u00e1rea do eletroduto ocupada pelos fios<\/li>\n<\/ul>\n<p>A calculadora soma as \u00e1reas dos condutores isolados informados e divide o resultado pela \u00e1rea interna do eletroduto. Em seguida, compara o valor com o limite de ocupa\u00e7\u00e3o do Cap\u00edtulo 9, Tabela 1 da NEC para o n\u00famero total de fios: 53% para um, 31% para dois ou 40% para tr\u00eas ou mais.<\/p>\n<p>\r\n<\/section>\n<style id=\"wpcoderpro-inline-2\">.calculation-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section id=\"calculation\" class=\"calculation-box\" aria-labelledby=\"calculation-title\">\r\n\t<div id=\"calculation-title\" class=\"not-prose font-display\"><span class=\"icon icon-unordered-list\" aria-hidden=\"true\"><\/span><h2>Ocupa\u00e7\u00e3o do eletroduto \u2013 Exemplo de c\u00e1lculo<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Exemplo:<\/strong> os dados pr\u00e9-carregados s\u00e3o tr\u00eas fios 12 AWG THHN\/THWN-2 em EMT de 1\/2 in. Cada fio ocupa 0,0133 in\u00b2 e a \u00e1rea interna do EMT \u00e9 0,304 in\u00b2.<\/p>\n<p>\\[A_{\\mathrm{w}}=3(0.0133)=0.0399\\ \\mathrm{in}^2\\]<\/p>\n<p>\\[F=\\frac{0.0399}{0.304}\\times100\\%=13.13\\%\\]<\/p>\n<p><strong>Resultado:<\/strong> a ocupa\u00e7\u00e3o de 13,13% est\u00e1 abaixo do limite de 40%, ou seja, o eletroduto selecionado \u00e9 aprovado. O menor tamanho de EMT aprovado na calculadora \u00e9 1\/2 in; sua capacidade m\u00e1xima para fios id\u00eanticos 12 AWG THHN\/THWN-2 \u00e9 nove.<\/p>\n<p>\n\r\n<\/section>\n<h2>Como usar a calculadora<\/h2>\n<ol>\n<li>Escolha o <strong>Tipo de eletroduto<\/strong> \u2014 EMT, RMC, PVC Schedule 40, PVC Schedule 80 ou FMC \u2014 e selecione o <strong>Tamanho nominal<\/strong> proposto.<\/li>\n<li>Em <strong>Linha de fios 1<\/strong>, escolha o <strong>Isolamento<\/strong> e a <strong>Bitola do fio<\/strong> e informe a <strong>Quantidade<\/strong> como n\u00famero inteiro.<\/li>\n<li>Use a <strong>Linha de fios 2<\/strong> at\u00e9 a <strong>Linha de fios 6<\/strong> para outras combina\u00e7\u00f5es de isolamento e bitola. Deixe a <strong>Quantidade<\/strong> de uma linha n\u00e3o utilizada em zero. Informe pelo menos um fio no total.<\/li>\n<li>Leia a <strong>\u00c1rea total dos fios<\/strong>, a <strong>\u00c1rea interna do eletroduto<\/strong> e a <strong>Ocupa\u00e7\u00e3o do eletroduto<\/strong>. Compare a ocupa\u00e7\u00e3o com a <strong>Ocupa\u00e7\u00e3o m\u00e1xima permitida<\/strong> e confira em <strong>Verifica\u00e7\u00e3o da ocupa\u00e7\u00e3o<\/strong> se o resultado \u00e9 APROVADO ou REPROVADO.<\/li>\n<li>Se necess\u00e1rio, consulte o <strong>Menor tamanho nominal aprovado<\/strong> para o mesmo tipo de eletroduto. Leia a <strong>Quantidade m\u00e1xima de fios id\u00eanticos<\/strong> e os <strong>Detalhes do c\u00e1lculo<\/strong> para entender como a capacidade separada de fios id\u00eanticos foi determinada.<\/li>\n<\/ol>\n<h2>O que a ocupa\u00e7\u00e3o do eletroduto indica<\/h2>\n<p>A ocupa\u00e7\u00e3o do eletroduto \u00e9 a parcela da \u00e1rea interna da se\u00e7\u00e3o transversal do eletroduto ocupada pelos fios. A \u00e1rea considerada para um condutor isolado inclui o isolamento, n\u00e3o apenas o n\u00facleo met\u00e1lico. Num conjunto misto, cada linha contribui com a \u00e1rea por fio multiplicada pela sua quantidade. A calculadora soma essas contribui\u00e7\u00f5es antes de determinar a porcentagem de ocupa\u00e7\u00e3o.<\/p>\n<p>Sob os limites comuns do Cap\u00edtulo 9, Tabela 1 da NEC usados aqui, a porcentagem permitida depende do <em>n\u00famero total de fios<\/em>, e n\u00e3o do n\u00famero de bitolas ou linhas diferentes. Por exemplo, tr\u00eas fios informados juntos numa \u00fanica linha e tr\u00eas fios informados em linhas separadas est\u00e3o ambos sujeitos ao limite de 40%. Um resultado APROVADO significa que a \u00e1rea dos fios informados n\u00e3o excede o limite para a \u00e1rea do eletroduto selecionado; n\u00e3o \u00e9 uma aprova\u00e7\u00e3o da instala\u00e7\u00e3o el\u00e9trica como um todo.<\/p>\n<p>O <strong>Menor tamanho nominal aprovado<\/strong> verifica o mesmo conjunto de fios nos tamanhos listados do tipo de eletroduto selecionado, de 1\/2 in at\u00e9 4 in. Se nenhum passar, o resultado exibe \"Nenhum at\u00e9 4 in\". A <strong>Quantidade m\u00e1xima de fios id\u00eanticos<\/strong> responde a outra pergunta: quantas c\u00f3pias da primeira linha de fios com quantidade diferente de zero cabem no eletroduto selecionado. Ela verifica separadamente os limites de um, dois e tr\u00eas ou mais fios. N\u00e3o se trata de uma capacidade adicional dispon\u00edvel ao lado de um conjunto misto.<\/p>\n<h2>Premissas e verifica\u00e7\u00f5es pr\u00e1ticas<\/h2>\n<ul>\n<li>O c\u00e1lculo usa \u00e1reas internas de eletrodutos e \u00e1reas de fios isolados embutidas para as op\u00e7\u00f5es listadas. Confirme os valores aplic\u00e1veis conforme a edi\u00e7\u00e3o da NEC adotada na sua jurisdi\u00e7\u00e3o e os produtos realmente especificados para a obra.<\/li>\n<li>Ele pressup\u00f5e condutores isolados individuais num trecho comum de eletroduto. N\u00e3o avalia cabos multipolares, condutores nus nem regras especiais de ocupa\u00e7\u00e3o, como as que podem se aplicar a niples curtos.<\/li>\n<li>Conte todo condutor que ocupe o eletroduto, inclusive os condutores de prote\u00e7\u00e3o (aterramento) isolados. Uma linha com quantidade zero n\u00e3o contribui com \u00e1rea e n\u00e3o afeta a contagem de fios.<\/li>\n<li>A ocupa\u00e7\u00e3o \u00e9 apenas uma verifica\u00e7\u00e3o de projeto. O ajuste de ampacidade dos condutores, a corre\u00e7\u00e3o por temperatura, os requisitos de instala\u00e7\u00e3o do eletroduto e as condi\u00e7\u00f5es de puxamento podem exigir an\u00e1lises separadas. Se voc\u00ea estiver escolhendo condutores, use a <a href=\"https:\/\/wpcalc.com\/pt\/engenharia\/bitola-de-fio-awg\/\">calculadora de bitola de fio<\/a> como refer\u00eancia complementar; verifique o circuito com a <a href=\"https:\/\/wpcalc.com\/pt\/engenharia\/dimensionamento-disjuntor\/\">calculadora de disjuntor<\/a> e avalie o comprimento do trecho com a <a href=\"https:\/\/wpcalc.com\/pt\/engenharia\/queda-de-tensao-eletrica\/\">calculadora de queda de tens\u00e3o<\/a>.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Verifique a ocupa\u00e7\u00e3o do eletroduto conforme a NEC para at\u00e9 seis grupos de condutores isolados. Selecione o tipo de eletroduto e o tamanho nominal, e informe o isolamento, a bitola e a quantidade de cada grupo de fios.<\/p>\n","protected":false},"author":3168,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6],"tags":[35],"class_list":["post-2976","post","type-post","status-publish","format-standard","hentry","category-engenharia","tag-eletrica"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts\/2976","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/users\/3168"}],"replies":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/comments?post=2976"}],"version-history":[{"count":0,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts\/2976\/revisions"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/media?parent=2976"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/categories?post=2976"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/tags?post=2976"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}