{"id":27550,"date":"2025-06-24T16:31:54","date_gmt":"2025-06-24T08:31:54","guid":{"rendered":"https:\/\/cnspd.com\/?p=27550"},"modified":"2026-04-11T13:10:09","modified_gmt":"2026-04-11T05:10:09","slug":"power-surge-meaning","status":"publish","type":"post","link":"https:\/\/www.cnspd.com\/pt\/significado-de-pico-de-energia\/","title":{"rendered":"Significado de picos de energia | Prote\u00e7\u00e3o contra picos de energia por LEEYEE"},"content":{"rendered":"<p data-start=\"348\" data-end=\"991\">Um pico de energia n\u00e3o monitorizado pode destruir um sistema de controlo ou desligar um campo solar. Mas qual \u00e9 a <strong data-start=\"449\" data-end=\"472\">significado de pico de energia<\/strong> em termos t\u00e9cnicos? Um pico de energia n\u00e3o \u00e9 apenas um pontinho de tens\u00e3o - pode exceder as classifica\u00e7\u00f5es de isolamento, queimar inversores e interromper as opera\u00e7\u00f5es. A solu\u00e7\u00e3o come\u00e7a com a compreens\u00e3o do comportamento das sobretens\u00f5es e a utiliza\u00e7\u00e3o de dispositivos de prote\u00e7\u00e3o.<br data-start=\"692\" data-end=\"695\" \/><strong data-start=\"695\" data-end=\"705\">LEEYEE<\/strong>A LEEYEE, um fabricante certificado de SPD, fornece solu\u00e7\u00f5es para sistemas solares, de rede e de automa\u00e7\u00e3o. Com capacidade at\u00e9 100kA e tempo de rea\u00e7\u00e3o &lt;25ns, os SPDs LEEYEE cumprem as normas CE, CB, ISO9001 e TUV.<\/p>\n<p><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=\"significado de pico de energia\" 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<p>&nbsp;<\/p>\n<p data-start=\"348\" data-end=\"991\"><strong data-start=\"903\" data-end=\"991\">Explore abaixo para compreender plenamente o significado de picos de energia e como atenuar os riscos.<\/strong><\/p>\n<hr data-start=\"1423\" data-end=\"1426\" \/>\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\/significado-de-pico-de-energia\/#power-surge-meaning-%e2%80%93-definition-causes-and-classification\" >Significado de picos de energia - Defini\u00e7\u00e3o, causas e classifica\u00e7\u00e3o<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/pt\/significado-de-pico-de-energia\/#key-surge-types-per-iec-61643-11-and-ieee-c62412\" >Principais tipos de sobretens\u00e3o (de acordo com IEC 61643-11 e IEEE C62.41.2):<\/a><\/li><\/ul><\/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\/significado-de-pico-de-energia\/#power-surge-effects-%e2%80%93-how-voltage-spikes-damage-systems\" >Efeitos dos picos de tens\u00e3o - Como os picos de tens\u00e3o danificam os sistemas<\/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\/significado-de-pico-de-energia\/#power-surge-protection-%e2%80%93-how-spds-work-to-limit-damage\" >Prote\u00e7\u00e3o contra picos de energia - Como os SPDs funcionam para limitar os danos<\/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\/significado-de-pico-de-energia\/#leeyee-spd-parameters\" >LEEYEE SPD Par\u00e2metros:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/pt\/significado-de-pico-de-energia\/#installing-surge-protection-%e2%80%93-best-practices-for-power-surge-zones\" >Instala\u00e7\u00e3o de prote\u00e7\u00e3o contra sobretens\u00f5es - Melhores pr\u00e1ticas para zonas de sobretens\u00f5es de energia<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/pt\/significado-de-pico-de-energia\/#power-systems-tn-tt-it\" >Sistemas de energia (TN, TT, IT):<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/pt\/significado-de-pico-de-energia\/#solar-pv-systems\" >Sistemas solares fotovoltaicos:<\/a><\/li><\/ul><\/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\/significado-de-pico-de-energia\/#faqs-%e2%80%93-power-surge-meaning\" >FAQs - Significado de picos de energia<\/a><\/li><\/ul><\/nav><\/div>\n<h2 data-start=\"1428\" data-end=\"1477\"><span class=\"ez-toc-section\" id=\"power-surge-meaning-%e2%80%93-definition-causes-and-classification\"><\/span>Significado de picos de energia - Defini\u00e7\u00e3o, causas e classifica\u00e7\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"1479\" data-end=\"1787\">A <strong data-start=\"1481\" data-end=\"1496\">pico de energia<\/strong>, tamb\u00e9m conhecido como <strong data-start=\"1514\" data-end=\"1539\">sobretens\u00e3o transit\u00f3ria<\/strong>Um pico de tens\u00e3o el\u00e9ctrica que dura microssegundos (\u03bcs) a milissegundos, mas que excede a tens\u00e3o de funcionamento normal de um sistema. Embora a maioria dos sistemas seja concebida para uma flutua\u00e7\u00e3o de \u00b110%, um pico pode fornecer v\u00e1rios quilovolts ao longo de 1-10\u03bcs.<\/p>\n<h3 data-start=\"1789\" data-end=\"1846\"><span class=\"ez-toc-section\" id=\"key-surge-types-per-iec-61643-11-and-ieee-c62412\"><\/span>Principais tipos de sobretens\u00e3o (por<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/5682\" target=\"_blank\" rel=\"nofollow noopener\"> IEC 61643-11<\/a> e IEEE C62.41.2):<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-start=\"1848\" data-end=\"2197\">\n<li data-start=\"1848\" data-end=\"1965\">\n<p data-start=\"1850\" data-end=\"1965\"><strong data-start=\"1850\" data-end=\"1868\">Surtos de impulso<\/strong>: Tipicamente causado por descargas atmosf\u00e9ricas (forma de onda de 10\/350\u03bcs), de amplitude e energia extremamente elevadas.<\/p>\n<\/li>\n<li data-start=\"1966\" data-end=\"2084\">\n<p data-start=\"1968\" data-end=\"2084\"><strong data-start=\"1968\" data-end=\"1988\">Sobretens\u00f5es de comuta\u00e7\u00e3o<\/strong>: Resultado de bancos de condensadores, transformadores ou grandes motores a ligar\/desligar (forma de onda de 8\/20\u03bcs).<\/p>\n<\/li>\n<li data-start=\"2085\" data-end=\"2197\">\n<p data-start=\"2087\" data-end=\"2197\"><strong data-start=\"2087\" data-end=\"2119\">Sobretens\u00f5es tempor\u00e1rias (TOV)<\/strong>: Aumento prolongado da tens\u00e3o, frequentemente devido a desequil\u00edbrios na rede ou a defeitos no neutro.<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"2199\" data-end=\"2202\" \/>\n<h2 data-start=\"2204\" data-end=\"2249\"><span class=\"ez-toc-section\" id=\"power-surge-effects-%e2%80%93-how-voltage-spikes-damage-systems\"><\/span>Efeitos dos picos de tens\u00e3o - Como os picos de tens\u00e3o danificam os sistemas<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"2251\" data-end=\"2351\">Quando a tens\u00e3o suport\u00e1vel de isolamento (BIL - n\u00edvel b\u00e1sico de isolamento) \u00e9 excedida, podem ocorrer danos:<\/p>\n<ul data-start=\"2353\" data-end=\"2520\">\n<li style=\"list-style-type: none;\">\n<ul data-start=\"2353\" data-end=\"2520\">\n<li data-start=\"2353\" data-end=\"2392\">\n<p data-start=\"2355\" data-end=\"2392\">Microcontroladores, unidades SCADA, PLCs<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul data-start=\"2353\" data-end=\"2520\">\n<li data-start=\"2393\" data-end=\"2435\">\n<p data-start=\"2395\" data-end=\"2435\">Inversores solares e controladores de carga<\/p>\n<\/li>\n<li data-start=\"2436\" data-end=\"2483\">\n<p data-start=\"2438\" data-end=\"2483\">Portas de comunica\u00e7\u00e3o (RS-485, Ethernet, CAN)<\/p>\n<\/li>\n<li data-start=\"2484\" data-end=\"2520\">\n<p data-start=\"2486\" data-end=\"2520\">Disjuntores, rel\u00e9s e dispositivos de controlo<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2522\" data-end=\"2657\">Mesmo que os danos n\u00e3o sejam imediatos, <strong data-start=\"2554\" data-end=\"2616\">as sobretens\u00f5es repetidas degradam a vida \u00fatil e a fiabilidade do equipamento<\/strong>aumentando os custos de O&amp;M e o risco de inatividade.<\/p>\n<blockquote data-start=\"2659\" data-end=\"2772\"><p>&nbsp;<\/p>\n<p data-start=\"2661\" data-end=\"2772\">De acordo com a NEMA e o IEEE, mais de 60% de todas as falhas de equipamento el\u00e9trico est\u00e3o relacionadas com a atividade de sobretens\u00e3o transit\u00f3ria.<\/p>\n<\/blockquote>\n<hr data-start=\"2774\" data-end=\"2777\" \/>\n<h2 data-start=\"2779\" data-end=\"2832\"><span class=\"ez-toc-section\" id=\"power-surge-protection-%e2%80%93-how-spds-work-to-limit-damage\"><\/span>Prote\u00e7\u00e3o contra picos de energia - <a href=\"https:\/\/www.cnspd.com\/pt\/os-protectores-contra-sobretensoes-limitam-a-potencia\/\">Como funcionam os DPS para limitar os danos<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"2834\" data-end=\"3099\">A <strong data-start=\"2836\" data-end=\"2869\">Dispositivo de prote\u00e7\u00e3o contra picos de tens\u00e3o (DPS)<\/strong> detecta a tens\u00e3o acima do limite e desvia com seguran\u00e7a o excesso para o solo atrav\u00e9s de MOVs (Varistores de \u00d3xido Met\u00e1lico), GDTs (Tubos de Descarga de G\u00e1s) ou diodos TVS. O SPD correto deve atender tanto ao ambiente de surto quanto \u00e0 tens\u00e3o operacional do sistema.<\/p>\n<p>&nbsp;<\/p>\n<h3 data-start=\"3101\" data-end=\"3127\"><span class=\"ez-toc-section\" id=\"leeyee-spd-parameters\"><\/span>LEEYEE SPD Par\u00e2metros:<span class=\"ez-toc-section-end\"><\/span><\/h3>\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=\"3129\" data-end=\"3730\">\n<thead data-start=\"3129\" data-end=\"3204\">\n<tr data-start=\"3129\" data-end=\"3204\">\n<th data-start=\"3129\" data-end=\"3166\" data-col-size=\"sm\">Par\u00e2metro<\/th>\n<th data-start=\"3166\" data-end=\"3204\" data-col-size=\"sm\">Valor<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"3280\" data-end=\"3730\">\n<tr data-start=\"3280\" data-end=\"3354\">\n<td data-start=\"3280\" data-end=\"3316\" data-col-size=\"sm\">Corrente m\u00e1xima de descarga (Imax)<\/td>\n<td data-col-size=\"sm\" data-start=\"3316\" data-end=\"3354\">At\u00e9 100kA (8\/20\u03bcs)<\/td>\n<\/tr>\n<tr data-start=\"3355\" data-end=\"3429\">\n<td data-start=\"3355\" data-end=\"3391\" data-col-size=\"sm\">Tens\u00e3o nominal (Uc)<\/td>\n<td data-col-size=\"sm\" data-start=\"3391\" data-end=\"3429\">275V CA \/ 600V-1500V CC<\/td>\n<\/tr>\n<tr data-start=\"3430\" data-end=\"3504\">\n<td data-start=\"3430\" data-end=\"3466\" data-col-size=\"sm\">N\u00edvel de prote\u00e7\u00e3o da tens\u00e3o (para cima)<\/td>\n<td data-col-size=\"sm\" data-start=\"3466\" data-end=\"3504\">&lt;1,8kV (Classe II), &lt;2,5kV (Classe I)<\/td>\n<\/tr>\n<tr data-start=\"3505\" data-end=\"3579\">\n<td data-start=\"3505\" data-end=\"3541\" data-col-size=\"sm\">Tempo de resposta<\/td>\n<td data-col-size=\"sm\" data-start=\"3541\" data-end=\"3579\">&lt;25 nanossegundos<\/td>\n<\/tr>\n<tr data-start=\"3580\" data-end=\"3655\">\n<td data-start=\"3580\" data-end=\"3616\" data-col-size=\"sm\">Normas<\/td>\n<td data-col-size=\"sm\" data-start=\"3616\" data-end=\"3655\">IEC 61643-11, EN 50539, GB18802<\/td>\n<\/tr>\n<tr data-start=\"3656\" data-end=\"3730\">\n<td data-start=\"3656\" data-end=\"3692\" data-col-size=\"sm\">Certifica\u00e7\u00f5es<\/td>\n<td data-col-size=\"sm\" data-start=\"3692\" data-end=\"3730\">CE, CB, ISO9001, TUV<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"3732\" data-end=\"3735\" \/>\n<h2 data-start=\"3737\" data-end=\"3785\"><span class=\"ez-toc-section\" id=\"installing-surge-protection-%e2%80%93-best-practices-for-power-surge-zones\"><\/span>Instala\u00e7\u00e3o de prote\u00e7\u00e3o contra sobretens\u00f5es - Melhores pr\u00e1ticas para zonas de sobretens\u00f5es de energia<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-start=\"3787\" data-end=\"3818\"><span class=\"ez-toc-section\" id=\"power-systems-tn-tt-it\"><\/span><a href=\"https:\/\/www.cnspd.com\/pt\/shop\/surge-protective-device\/\">Sistemas de energia (TN, TT, IT)<\/a>:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-start=\"3820\" data-end=\"4003\">\n<li data-start=\"3820\" data-end=\"3885\">\n<p data-start=\"3822\" data-end=\"3885\"><strong data-start=\"3822\" data-end=\"3836\">DUP tipo 1<\/strong>: Entrada de servi\u00e7o (ambientes com risco de trovoada)<\/p>\n<\/li>\n<li data-start=\"3886\" data-end=\"3951\">\n<p data-start=\"3888\" data-end=\"3951\"><strong data-start=\"3888\" data-end=\"3902\">DUP tipo 2<\/strong>: Quadros de distribui\u00e7\u00e3o principais (prote\u00e7\u00e3o de comuta\u00e7\u00e3o)<\/p>\n<\/li>\n<li data-start=\"3952\" data-end=\"4003\">\n<p data-start=\"3954\" data-end=\"4003\"><strong data-start=\"3954\" data-end=\"3968\">DUP tipo 3<\/strong>: Circuito final (dispositivos sens\u00edveis)<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"4005\" data-end=\"4026\"><span class=\"ez-toc-section\" id=\"solar-pv-systems\"><\/span><a href=\"https:\/\/www.cnspd.com\/pt\/shop\/dc-surge-protective-device\/\">Sistemas solares fotovoltaicos<\/a>:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-start=\"4028\" data-end=\"4170\">\n<li data-start=\"4028\" data-end=\"4090\">\n<p data-start=\"4030\" data-end=\"4090\"><strong data-start=\"4030\" data-end=\"4051\">1000V ou 1500V DC<\/strong>: DPS entre a caixa combinadora e o inversor<\/p>\n<\/li>\n<li data-start=\"4091\" data-end=\"4170\">\n<p data-start=\"4093\" data-end=\"4170\">Utiliza\u00e7\u00e3o de <strong data-start=\"4100\" data-end=\"4147\">h\u00edbrido MOV-GDT n\u00e3o polarizado, resistente ao arco el\u00e9trico<\/strong> m\u00f3dulos \u00e9 recomendado<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"4172\" data-end=\"4261\">A LEEYEE fornece solu\u00e7\u00f5es de integra\u00e7\u00e3o personalizadas, incluindo combina\u00e7\u00f5es de SPD + MCB + isolador.<\/p>\n<hr data-start=\"4263\" data-end=\"4266\" \/>\n<h2 data-start=\"4268\" data-end=\"4297\"><span class=\"ez-toc-section\" id=\"faqs-%e2%80%93-power-surge-meaning\"><\/span>FAQs - Significado de picos de energia<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"4299\" data-end=\"4474\"><strong data-start=\"4299\" data-end=\"4343\">1. O que significa um pico de energia?<\/strong><br data-start=\"4343\" data-end=\"4346\" \/>Um pico de energia \u00e9 um aumento de tens\u00e3o de curta dura\u00e7\u00e3o acima dos n\u00edveis normais de funcionamento, potencialmente danificando a eletr\u00f3nica e os circuitos.<\/p>\n<p data-start=\"4476\" data-end=\"4615\"><strong data-start=\"4476\" data-end=\"4508\">2. O que \u00e9 que provoca picos de energia?<\/strong><br data-start=\"4508\" data-end=\"4511\" \/>As causas comuns incluem rel\u00e2mpagos, transientes de comuta\u00e7\u00e3o, falhas na rede e opera\u00e7\u00f5es com grandes cargas indutivas.<\/p>\n<p data-start=\"4617\" data-end=\"4755\"><strong data-start=\"4617\" data-end=\"4655\">3. Qu\u00e3o perigoso \u00e9 um pico de energia?<\/strong><br data-start=\"4655\" data-end=\"4658\" \/>Pode destruir instantaneamente os componentes electr\u00f3nicos, reduzir a resist\u00eancia do isolamento e provocar inc\u00eandios ou apag\u00f5es.<\/p>\n<p data-start=\"4757\" data-end=\"4901\"><strong data-start=\"4757\" data-end=\"4788\">4. Como \u00e9 que os DPS param os picos de tens\u00e3o?<\/strong><br data-start=\"4788\" data-end=\"4791\" \/>Os DPS fixam a tens\u00e3o desviando a corrente de pico para a terra atrav\u00e9s de componentes internos, como MOVs e GDTs.<\/p>\n<p data-start=\"4903\" data-end=\"5064\"><strong data-start=\"4903\" data-end=\"4954\">5. Qual \u00e9 a diferen\u00e7a entre surto e TOV?<\/strong><br data-start=\"4954\" data-end=\"4957\" \/>Uma sobretens\u00e3o dura microssegundos; um TOV \u00e9 sustentado (milissegundos a segundos). S\u00e3o necess\u00e1rias protec\u00e7\u00f5es diferentes.<\/p>\n<p data-start=\"5066\" data-end=\"5202\"><strong data-start=\"5066\" data-end=\"5094\">6. Como \u00e9 que dimensiono um DUP?<\/strong><br data-start=\"5094\" data-end=\"5097\" \/>Com base na tens\u00e3o do sistema (Uc), na corrente de pico prevista (In\/Imax) e no risco de exposi\u00e7\u00e3o (densidade de raios Ng).<\/p>\n<p data-start=\"5204\" data-end=\"5347\"><strong data-start=\"5204\" data-end=\"5253\">7. As extens\u00f5es el\u00e9ctricas com etiquetas de sobretens\u00e3o s\u00e3o suficientes?<\/strong><br data-start=\"5253\" data-end=\"5256\" \/>N\u00e3o. Os sistemas industriais exigem SPDs certificados e de v\u00e1rios est\u00e1gios em conformidade com os padr\u00f5es IEC \/ EN.<\/p>\n<hr data-start=\"5349\" data-end=\"5352\" \/>\n<p data-start=\"885\" data-end=\"979\"><strong data-start=\"915\" data-end=\"979\">Exonera\u00e7\u00e3o de responsabilidade profissional - Utiliza\u00e7\u00e3o do SPD para prote\u00e7\u00e3o contra picos de corrente<\/strong><\/p>\n<p data-start=\"5370\" data-end=\"5587\">Este conte\u00fado \u00e9 apenas para fins informativos e de refer\u00eancia de engenharia. Consulte sempre um engenheiro el\u00e9trico licenciado para a sele\u00e7\u00e3o do SPD, classifica\u00e7\u00e3o de sobretens\u00e3o e coordena\u00e7\u00e3o do sistema em conformidade com os c\u00f3digos locais.<\/p>","protected":false},"excerpt":{"rendered":"<p>Um pico de energia n\u00e3o monitorizado pode destruir um sistema de controlo ou desligar um campo solar. Mas o que significa um pico de energia em termos t\u00e9cnicos? Um pico de energia n\u00e3o \u00e9 apenas um pontinho de tens\u00e3o - pode exceder as classifica\u00e7\u00f5es de isolamento, queimar inversores e interromper as opera\u00e7\u00f5es. A solu\u00e7\u00e3o come\u00e7a com a compreens\u00e3o do comportamento das sobretens\u00f5es e a utiliza\u00e7\u00e3o de dispositivos de prote\u00e7\u00e3o.<\/p>","protected":false},"author":18,"featured_media":27322,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,488,422],"tags":[],"class_list":["post-27550","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>Power Surge Meaning | Surge Protection by LEEYEE<\/title>\n<meta name=\"description\" content=\"What is the power surge meaning? 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