{"id":27526,"date":"2025-06-21T14:04:54","date_gmt":"2025-06-21T06:04:54","guid":{"rendered":"https:\/\/cnspd.com\/?p=27526"},"modified":"2026-04-11T13:10:24","modified_gmt":"2026-04-11T05:10:24","slug":"what-do-surge-protectors-do","status":"publish","type":"post","link":"https:\/\/www.cnspd.com\/pt\/o-que-fazem-os-protectores-contra-sobretensoes\uff1f\/","title":{"rendered":"O que fazem os protectores de sobretens\u00e3o?"},"content":{"rendered":"<p data-start=\"130\" data-end=\"203\"><strong data-start=\"130\" data-end=\"203\">An\u00e1lise t\u00e9cnica e guia de sele\u00e7\u00e3o para profissionais do sector da energia<\/strong><\/p>\n<p data-start=\"205\" data-end=\"909\">Picos de tens\u00e3o inesperados - quer sejam causados por rel\u00e2mpagos, comuta\u00e7\u00e3o de baterias de condensadores ou arranque de motores - podem resultar em danos permanentes nas infra-estruturas de energia e no equipamento ligado. Em campos solares, instala\u00e7\u00f5es industriais ou instala\u00e7\u00f5es de dados, isto significa tempo de inatividade, riscos de inc\u00eandio e grandes perdas de capital. A solu\u00e7\u00e3o \u00e9 uma estrat\u00e9gia de prote\u00e7\u00e3o contra sobretens\u00f5es concebida. <span style=\"color: #0000ff;\"><strong>LEEYEE, <\/strong><span style=\"color: #000000;\">um fabricante certificado no dom\u00ednio da prote\u00e7\u00e3o contra sobretens\u00f5es, fornece <strong>DPS de tipo 1, tipo 2 e tipo 3<\/strong> solu\u00e7\u00f5es com<strong> CE, CB, ISO9001 e TUV<\/strong> certifica\u00e7\u00f5es. Concebidos para sistemas AC e DC (at\u00e9 1500VDC), os SPDs da LEEYEE oferecem uma capacidade de descarga at\u00e9 100kA com tempos de resposta inferiores a 25ns - desempenho que se situa no topo dos fornecedores globais de SPD.<\/span><\/span><\/p>\n<p data-start=\"911\" data-end=\"1074\"><strong data-start=\"911\" data-end=\"1074\">Os protectores contra sobretens\u00f5es limitam as sobretens\u00f5es transit\u00f3rias, desviando a energia de sobretens\u00e3o para a terra em nanossegundos, garantindo a seguran\u00e7a e a continuidade em sistemas de energia cr\u00edticos.<\/strong><\/p>\n<p data-start=\"1076\" data-end=\"1214\">A sele\u00e7\u00e3o e coordena\u00e7\u00e3o adequadas do SPD s\u00e3o vitais para evitar falhas, disparos inc\u00f3modos ou n\u00e3o conformidade regulamentar. Vamos explorar em pormenor.<\/p>\n<p data-start=\"1076\" data-end=\"1214\"><a href=\"https:\/\/www.cnspd.com\/pt\/download-category\/all\/\" target=\"_blank\" rel=\"noopener\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-26994 size-full\" src=\"https:\/\/cnspd.com\/wp-content\/uploads\/2024\/12\/BookCover-3.jpg\" alt=\"Para que servem os protectores de sobretens\u00e3o\" width=\"600\" height=\"408\" srcset=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2024\/12\/BookCover-3.jpg 600w, https:\/\/www.cnspd.com\/wp-content\/uploads\/2024\/12\/BookCover-3-150x102.jpg 150w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<hr data-start=\"1216\" data-end=\"1219\" \/>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar o \u00edndice\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Alternar<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/pt\/o-que-fazem-os-protectores-contra-sobretensoes\uff1f\/#surge-protection-basics-%e2%80%93-what-do-surge-protectors-really-do\" >No\u00e7\u00f5es b\u00e1sicas sobre prote\u00e7\u00e3o contra sobretens\u00e3o - O que fazem realmente os protectores contra sobretens\u00e3o?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/pt\/o-que-fazem-os-protectores-contra-sobretensoes\uff1f\/#where-surge-protection-is-mandatory\" >Onde a prote\u00e7\u00e3o contra sobretens\u00f5es \u00e9 obrigat\u00f3ria<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/pt\/o-que-fazem-os-protectores-contra-sobretensoes\uff1f\/#leeyee-spd-technical-parameters\" >Par\u00e2metros t\u00e9cnicos do LEEYEE SPD<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/pt\/o-que-fazem-os-protectores-contra-sobretensoes\uff1f\/#application-engineering-how-to-configure-spds\" >Engenharia de aplica\u00e7\u00e3o: Como configurar SPDs<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/pt\/o-que-fazem-os-protectores-contra-sobretensoes\uff1f\/#for-ac-power-distribution-systems\" >Para sistemas de distribui\u00e7\u00e3o de energia AC:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/pt\/o-que-fazem-os-protectores-contra-sobretensoes\uff1f\/#for-pv-systems\" >Para sistemas fotovoltaicos:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/pt\/o-que-fazem-os-protectores-contra-sobretensoes\uff1f\/#field-integration-how-leeyee-adds-value\" >Integra\u00e7\u00e3o no terreno: Como a LEEYEE acrescenta valor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/pt\/o-que-fazem-os-protectores-contra-sobretensoes\uff1f\/#faqs-%e2%80%93-what-do-surge-protectors-do\" >Perguntas e Respostas - O que fazem os protectores de sobretens\u00e3o?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/pt\/o-que-fazem-os-protectores-contra-sobretensoes\uff1f\/#%e2%9a%a0%ef%b8%8f-disclaimer\" >\u26a0\ufe0f Declara\u00e7\u00e3o de exonera\u00e7\u00e3o de responsabilidade<\/a><\/li><\/ul><\/nav><\/div>\n<h2 data-start=\"1221\" data-end=\"1285\"><span class=\"ez-toc-section\" id=\"surge-protection-basics-%e2%80%93-what-do-surge-protectors-really-do\"><\/span>No\u00e7\u00f5es b\u00e1sicas sobre prote\u00e7\u00e3o contra sobretens\u00e3o - O que fazem realmente os protectores contra sobretens\u00e3o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"1287\" data-end=\"1586\">A <strong data-start=\"1289\" data-end=\"1322\">dispositivo de prote\u00e7\u00e3o contra sobretens\u00f5es (DPS)<\/strong> funciona atrav\u00e9s da fixa\u00e7\u00e3o e redireccionamento de sobretens\u00f5es transit\u00f3rias - muitas vezes sob a forma de milhares de volts ao longo de microssegundos. De acordo com <strong data-start=\"1455\" data-end=\"1471\">IEC 61643-11<\/strong>Se o SPD for um SPD, ele deve responder rapidamente (normalmente &lt;25ns) e lidar com a energia de pico especificada (medida em kA) sem falhas.<\/p>\n<p data-start=\"1588\" data-end=\"1660\">Nos sistemas de energia el\u00e9ctrica, s\u00e3o normalmente utilizados os seguintes tipos:<\/p>\n<ul data-start=\"1662\" data-end=\"1998\">\n<li data-start=\"1662\" data-end=\"1785\">\n<p data-start=\"1664\" data-end=\"1785\"><strong data-start=\"1664\" data-end=\"1678\">DUP tipo 1<\/strong>: Para descargas atmosf\u00e9ricas diretas (Classe I), frequentemente instalados em entradas de servi\u00e7o ou em zonas propensas a descargas atmosf\u00e9ricas.<\/p>\n<\/li>\n<li data-start=\"1786\" data-end=\"1903\">\n<p data-start=\"1788\" data-end=\"1903\"><strong data-start=\"1788\" data-end=\"1802\">DUP tipo 2<\/strong>: Para sobretens\u00f5es de comuta\u00e7\u00e3o e raios indirectos (classe II), utilizados em pain\u00e9is de distribui\u00e7\u00e3o e sistemas fotovoltaicos.<\/p>\n<\/li>\n<li data-start=\"1904\" data-end=\"1998\">\n<p data-start=\"1906\" data-end=\"1998\"><strong data-start=\"1906\" data-end=\"1920\">DUP tipo 3<\/strong>: Para prote\u00e7\u00e3o no local de utiliza\u00e7\u00e3o (classe III), aplicada na proximidade de aparelhos electr\u00f3nicos sens\u00edveis.<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"2000\" data-end=\"2003\" \/>\n<h2 data-start=\"2005\" data-end=\"2043\"><span class=\"ez-toc-section\" id=\"where-surge-protection-is-mandatory\"><\/span>Onde a prote\u00e7\u00e3o contra sobretens\u00f5es \u00e9 obrigat\u00f3ria<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"2045\" data-end=\"2125\">Os protectores de sobretens\u00e3o s\u00e3o <strong data-start=\"2066\" data-end=\"2106\">exigido por c\u00f3digos como IEC60364-4-44<\/strong>, especialmente onde:<\/p>\n<ul data-start=\"2127\" data-end=\"2386\">\n<li data-start=\"2127\" data-end=\"2173\">\n<p data-start=\"2129\" data-end=\"2173\">O risco de trovoada \u00e9 elevado (N\u00edvel LPL I-II)<\/p>\n<\/li>\n<li data-start=\"2174\" data-end=\"2246\">\n<p data-start=\"2176\" data-end=\"2246\">\u00c9 poss\u00edvel a perda de vidas humanas, de servi\u00e7os essenciais ou de dados econ\u00f3micos<\/p>\n<\/li>\n<li data-start=\"2247\" data-end=\"2316\">\n<p data-start=\"2249\" data-end=\"2316\">Os sistemas fotovoltaicos excedem 600VDC (normalmente requerem SPD tipo 2 ou h\u00edbrido)<\/p>\n<\/li>\n<li data-start=\"2317\" data-end=\"2386\">\n<p data-start=\"2319\" data-end=\"2386\">As cargas el\u00e9ctricas envolvem VFDs, elevadores ou sistemas acionados por motores<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"2388\" data-end=\"2391\" \/>\n<h2 data-start=\"2393\" data-end=\"2427\"><span class=\"ez-toc-section\" id=\"leeyee-spd-technical-parameters\"><\/span>Par\u00e2metros t\u00e9cnicos do LEEYEE SPD<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"_tableContainer_16hzy_1\">\n<div class=\"_tableWrapper_16hzy_14 group flex w-fit flex-col-reverse\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"2429\" data-end=\"3210\">\n<thead data-start=\"2429\" data-end=\"2501\">\n<tr data-start=\"2429\" data-end=\"2501\">\n<th data-start=\"2429\" data-end=\"2456\" data-col-size=\"sm\">Par\u00e2metro<\/th>\n<th data-start=\"2456\" data-end=\"2501\" data-col-size=\"sm\">Intervalo de valores<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"2575\" data-end=\"3210\">\n<tr data-start=\"2575\" data-end=\"2653\">\n<td data-start=\"2575\" data-end=\"2615\" data-col-size=\"sm\">Tens\u00e3o m\u00e1xima de funcionamento cont\u00ednuo (Uc)<\/td>\n<td data-col-size=\"sm\" data-start=\"2615\" data-end=\"2653\">275V-1500V AC\/DC<\/td>\n<\/tr>\n<tr data-start=\"2654\" data-end=\"2732\">\n<td data-start=\"2654\" data-end=\"2694\" data-col-size=\"sm\">Corrente de descarga nominal (In)<\/td>\n<td data-col-size=\"sm\" data-start=\"2694\" data-end=\"2732\">20kA-40kA<\/td>\n<\/tr>\n<tr data-start=\"2733\" data-end=\"2811\">\n<td data-start=\"2733\" data-end=\"2773\" data-col-size=\"sm\">Corrente m\u00e1xima de descarga (Imax)<\/td>\n<td data-col-size=\"sm\" data-start=\"2773\" data-end=\"2811\">At\u00e9 100kA<\/td>\n<\/tr>\n<tr data-start=\"2812\" data-end=\"2891\">\n<td data-start=\"2812\" data-end=\"2852\" data-col-size=\"sm\">N\u00edvel de prote\u00e7\u00e3o da tens\u00e3o (para cima)<\/td>\n<td data-col-size=\"sm\" data-start=\"2852\" data-end=\"2891\">&lt;1,8kV (Classe II), &lt;2,5kV (Classe I)<\/td>\n<\/tr>\n<tr data-start=\"2892\" data-end=\"2969\">\n<td data-start=\"2892\" data-end=\"2931\" data-col-size=\"sm\">Tempo de resposta<\/td>\n<td data-col-size=\"sm\" data-start=\"2931\" data-end=\"2969\">&lt;25ns<\/td>\n<\/tr>\n<tr data-start=\"2970\" data-end=\"3049\">\n<td data-start=\"2970\" data-end=\"3010\" data-col-size=\"sm\">Normas<\/td>\n<td data-col-size=\"sm\" data-start=\"3010\" data-end=\"3049\">IEC61643-11, EN50539, GB18802<\/td>\n<\/tr>\n<tr data-start=\"3050\" data-end=\"3128\">\n<td data-start=\"3050\" data-end=\"3090\" data-col-size=\"sm\">Certifica\u00e7\u00f5es<\/td>\n<td data-col-size=\"sm\" data-start=\"3090\" data-end=\"3128\">CE, CB, ISO9001, TUV<\/td>\n<\/tr>\n<tr data-start=\"3129\" data-end=\"3210\">\n<td data-start=\"3129\" data-end=\"3169\" data-col-size=\"sm\">Carater\u00edsticas de seguran\u00e7a<\/td>\n<td data-col-size=\"sm\" data-start=\"3169\" data-end=\"3210\">Seccionador t\u00e9rmico, indicador de falha<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"sticky end-(--thread-content-margin) h-0 self-end select-none\">\n<div class=\"absolute end-0 flex items-end\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p data-start=\"3212\" data-end=\"3334\">Os SPDs LEEYEE s\u00e3o modulares, podem ser montados em trilho DIN e est\u00e3o dispon\u00edveis em configura\u00e7\u00f5es monof\u00e1sicas, trif\u00e1sicas ou multi-MPP (PV).<\/p>\n<hr data-start=\"3336\" data-end=\"3339\" \/>\n<h2 data-start=\"3341\" data-end=\"3390\"><span class=\"ez-toc-section\" id=\"application-engineering-how-to-configure-spds\"><\/span>Engenharia de aplica\u00e7\u00e3o: Como configurar SPDs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-start=\"3392\" data-end=\"3430\"><span class=\"ez-toc-section\" id=\"for-ac-power-distribution-systems\"><\/span><a href=\"https:\/\/www.cnspd.com\/pt\/shop\/ac-surge-protective-device\/\">Para sistemas de distribui\u00e7\u00e3o de energia AC<\/a>:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-start=\"3432\" data-end=\"3706\">\n<li data-start=\"3432\" data-end=\"3509\">\n<p data-start=\"3434\" data-end=\"3509\"><strong data-start=\"3434\" data-end=\"3456\">Sistema TN-S\/TN-C-S<\/strong>: Utilizar 4P Tipo 2 SPD (por exemplo, LEEYEE modelo 40kA@275V AC)<\/p>\n<\/li>\n<li data-start=\"3510\" data-end=\"3569\">\n<p data-start=\"3512\" data-end=\"3569\"><strong data-start=\"3512\" data-end=\"3526\">Sistemas TT<\/strong>: Necessita de um m\u00f3dulo de prote\u00e7\u00e3o N-PE adicional<\/p>\n<\/li>\n<li data-start=\"3570\" data-end=\"3706\">\n<p data-start=\"3572\" data-end=\"3706\"><strong data-start=\"3572\" data-end=\"3609\">Coordena\u00e7\u00e3o com MCB\/Fus\u00edvel de reserva<\/strong>: O SPD deve ser coordenado com a prote\u00e7\u00e3o contra curto-circuitos a montante, de acordo com a classifica\u00e7\u00e3o Icc do fabricante<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"3708\" data-end=\"3727\"><span class=\"ez-toc-section\" id=\"for-pv-systems\"><\/span><a href=\"https:\/\/www.cnspd.com\/pt\/shop\/dc-surge-protective-device\/\">Para sistemas fotovoltaicos:<\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-start=\"3729\" data-end=\"3996\">\n<li data-start=\"3729\" data-end=\"3791\">\n<p data-start=\"3731\" data-end=\"3791\"><strong data-start=\"3731\" data-end=\"3752\">1000VDC e 1500VDC<\/strong>: Use PV SPD com VPR &lt;3kV, In \u2265 20kA<\/p>\n<\/li>\n<li data-start=\"3792\" data-end=\"3882\">\n<p data-start=\"3794\" data-end=\"3882\"><strong data-start=\"3794\" data-end=\"3815\">Prote\u00e7\u00e3o de cordas<\/strong>: Instalar o SPD na entrada CC do inversor, na caixa combinadora e no n\u00edvel da matriz<\/p>\n<\/li>\n<li data-start=\"3883\" data-end=\"3996\">\n<p data-start=\"3885\" data-end=\"3996\"><strong data-start=\"3885\" data-end=\"3916\">Prote\u00e7\u00e3o contra polaridade inversa<\/strong>: Os SPDs PV da LEEYEE incluem m\u00f3dulos h\u00edbridos varistor + GDT com design n\u00e3o polarizado<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"3998\" data-end=\"4001\" \/>\n<h2 data-start=\"4003\" data-end=\"4046\"><span class=\"ez-toc-section\" id=\"field-integration-how-leeyee-adds-value\"><\/span>Integra\u00e7\u00e3o no terreno: Como a LEEYEE acrescenta valor<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"4048\" data-end=\"4120\">A LEEYEE n\u00e3o s\u00f3 fornece DPS, como tamb\u00e9m oferece apoio total \u00e0 integra\u00e7\u00e3o:<\/p>\n<ul data-start=\"4122\" data-end=\"4411\">\n<li data-start=\"4122\" data-end=\"4172\">\n<p data-start=\"4124\" data-end=\"4172\">Marca OEM\/ODM com log\u00f3tipo impresso a laser ou serigr\u00e1fico<\/p>\n<\/li>\n<li data-start=\"4173\" data-end=\"4230\">\n<p data-start=\"4175\" data-end=\"4230\">Cor da caixa personalizada ou classifica\u00e7\u00e3o IP do inv\u00f3lucro (IP20-IP65)<\/p>\n<\/li>\n<li data-start=\"4231\" data-end=\"4316\">\n<p data-start=\"4233\" data-end=\"4316\">Relat\u00f3rios de inspe\u00e7\u00e3o da f\u00e1brica, an\u00e1lises de certificados de terceiros e garantia de qualidade PICC<\/p>\n<\/li>\n<li data-start=\"4317\" data-end=\"4411\">\n<p data-start=\"4319\" data-end=\"4411\">A pedido: Teste da curva I-V, conformidade com a norma UL94-V0 de retardador de chama, sa\u00edda de alarme de falha remota<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"4413\" data-end=\"4416\" \/>\n<h2 data-start=\"4418\" data-end=\"4456\"><span class=\"ez-toc-section\" id=\"faqs-%e2%80%93-what-do-surge-protectors-do\"><\/span>Perguntas e Respostas - O que fazem os protectores de sobretens\u00e3o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"4458\" data-end=\"4656\"><strong data-start=\"4458\" data-end=\"4517\">1. <a href=\"https:\/\/www.cnspd.com\/pt\/spd-tipo-1-vs-tipo-2-vs-tipo-3\/\">Qual \u00e9 a diferen\u00e7a entre DPS tipo 1 e tipo 2?<\/a><\/strong><br data-start=\"4517\" data-end=\"4520\" \/>O tipo 1 trata a corrente direta de rel\u00e2mpagos (forma de onda de 10\/350\u00b5s), o tipo 2 \u00e9 para sobretens\u00f5es de comuta\u00e7\u00e3o ou rel\u00e2mpagos indirectos (8\/20\u00b5s).<\/p>\n<p data-start=\"4658\" data-end=\"4802\"><strong data-start=\"4658\" data-end=\"4710\">2. Como selecciono a classifica\u00e7\u00e3o de corrente do SPD (In\/Imax)?<\/strong><br data-start=\"4710\" data-end=\"4713\" \/>Basear-se na avalia\u00e7\u00e3o de riscos, na densidade de raios (Ng), na altura do edif\u00edcio e na exposi\u00e7\u00e3o do sistema.<\/p>\n<p data-start=\"4804\" data-end=\"4943\"><strong data-start=\"4804\" data-end=\"4848\">3. Posso utilizar um DPS para CA e CC?<\/strong><br data-start=\"4848\" data-end=\"4851\" \/>N\u00e3o. Utilize separadamente os SPD espec\u00edficos para CA e para CC. A LEEYEE fornece modelos dedicados para ambos.<\/p>\n<p data-start=\"4945\" data-end=\"5130\"><strong data-start=\"4945\" data-end=\"4990\">4. Um DUP necessita de ser substitu\u00eddo periodicamente?<\/strong><br data-start=\"4990\" data-end=\"4993\" \/>Sim. Se o MOV estiver termicamente desligado ou o indicador estiver vermelho, substitua-o. Considere tamb\u00e9m o ciclo de fim de vida ~5 anos em zonas propensas a picos de tens\u00e3o.<\/p>\n<p data-start=\"5132\" data-end=\"5281\"><strong data-start=\"5132\" data-end=\"5165\">5.<a href=\"https:\/\/www.cnspd.com\/pt\/how-to-choose-fuses-or-miniature-circuit-breakers-mcb-for-surge-protective-devices-spd\/\"> Posso utilizar o SPD sem MCB?<\/a><\/strong><br data-start=\"5165\" data-end=\"5168\" \/>Apenas se a prote\u00e7\u00e3o integrada estiver incorporada. A LEEYEE recomenda a coordena\u00e7\u00e3o com MCBs certificados ou fus\u00edveis de reserva gG.<\/p>\n<p data-start=\"5283\" data-end=\"5435\"><strong data-start=\"5283\" data-end=\"5336\">6. Os DPS LEEYEE est\u00e3o em conformidade com os c\u00f3digos solares da UE?<\/strong><br data-start=\"5336\" data-end=\"5339\" \/>Sim. Os nossos SPDs PV est\u00e3o em conformidade com as normas EN50539-11 e IEC 61643-31, adequadas para projectos de servi\u00e7os p\u00fablicos europeus.<\/p>\n<p data-start=\"5437\" data-end=\"5612\"><strong data-start=\"5437\" data-end=\"5488\">7. Como \u00e9 que o DUP afecta a coordena\u00e7\u00e3o do isolamento?<\/strong><br data-start=\"5488\" data-end=\"5491\" \/>Reduz as tens\u00f5es transit\u00f3rias abaixo do n\u00edvel b\u00e1sico de isolamento (BIL), assegurando a prote\u00e7\u00e3o diel\u00e9ctrica dos componentes do sistema.<\/p>\n<hr data-start=\"5614\" data-end=\"5617\" \/>\n<h2 data-start=\"5619\" data-end=\"5635\"><span class=\"ez-toc-section\" id=\"%e2%9a%a0%ef%b8%8f-disclaimer\"><\/span>\u26a0\ufe0f Declara\u00e7\u00e3o de exonera\u00e7\u00e3o de responsabilidade<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"5637\" data-end=\"5844\">Este artigo destina-se a profissionais qualificados do sector e a projectistas de sistemas. Consulte sempre os c\u00f3digos el\u00e9ctricos locais e consulte um engenheiro certificado para instala\u00e7\u00e3o, an\u00e1lise de risco de sobretens\u00e3o e coordena\u00e7\u00e3o de SPD.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Guia de An\u00e1lise T\u00e9cnica e Sele\u00e7\u00e3o para Profissionais do Setor El\u00e9trico Picos de tens\u00e3o inesperados - quer sejam causados por rel\u00e2mpagos, comuta\u00e7\u00e3o de bancos de condensadores ou arranque de motores - podem resultar em danos permanentes nas infra-estruturas de energia e no equipamento ligado. Em campos solares, instala\u00e7\u00f5es industriais ou instala\u00e7\u00f5es de dados, isto significa tempo de inatividade, riscos de inc\u00eandio e grandes perdas de capital. A solu\u00e7\u00e3o \u00e9 uma prote\u00e7\u00e3o contra sobretens\u00f5es concebida...<\/p>","protected":false},"author":18,"featured_media":27532,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,488,422],"tags":[],"class_list":["post-27526","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-surge-protection","category-industry-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What Do Surge Protectors Do? | LEEYEE Electrics<\/title>\n<meta name=\"description\" content=\"What do surge protectors do? 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