{"id":36289,"date":"2026-01-24T02:47:38","date_gmt":"2026-01-24T02:47:38","guid":{"rendered":"https:\/\/www.c2psu.com\/?p=36289"},"modified":"2026-01-24T02:47:44","modified_gmt":"2026-01-24T02:47:44","slug":"compreender-o-etl-ul-e-o-ce","status":"publish","type":"post","link":"http:\/\/www.c2psu.com\/pt\/compreender-o-etl-ul-e-o-ce\/","title":{"rendered":"Compreender a ETL, UL e CE: O seu guia para certifica\u00e7\u00f5es de seguran\u00e7a de fontes de alimenta\u00e7\u00e3o"},"content":{"rendered":"<p>Ao selecionar uma fonte de alimenta\u00e7\u00e3o para o seu computador, consola de jogos ou equipamento industrial, ir\u00e1 reparar em pequenos log\u00f3tipos como&nbsp;<strong>ETL, UL e CE<\/strong>&nbsp;na etiqueta. Estas certifica\u00e7\u00f5es s\u00e3o muito mais do que selos decorativos - representam valida\u00e7\u00f5es de seguran\u00e7a cr\u00edticas que o protegem a si e ao seu equipamento contra riscos el\u00e9ctricos.<\/p>\n\n\n\n<p>Este guia explica o que significa cada certifica\u00e7\u00e3o, como diferem e porque s\u00e3o importantes para a sua pr\u00f3xima compra de fonte de alimenta\u00e7\u00e3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-the-critical-role-of-safety-certifications\">O papel fundamental das certifica\u00e7\u00f5es de seguran\u00e7a<\/h2>\n\n\n\n<p>As certifica\u00e7\u00f5es de seguran\u00e7a existem porque as fontes de alimenta\u00e7\u00e3o convertem a perigosa energia CA de alta tens\u00e3o em energia CC de baixa tens\u00e3o. Sem uma conce\u00e7\u00e3o e testes adequados, podem representar s\u00e9rios riscos de:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Choque el\u00e9trico<\/strong><\/li>\n\n\n\n<li><strong>Inc\u00eandio por sobreaquecimento ou curto-circuito<\/strong><\/li>\n\n\n\n<li><strong>Danos no equipamento devido a picos de energia<\/strong><\/li>\n\n\n\n<li><strong>Interfer\u00eancia electromagn\u00e9tica (EMI)<\/strong><\/li>\n<\/ul>\n\n\n\n<p>As fontes de alimenta\u00e7\u00e3o certificadas foram testadas de forma independente para garantir que cumprem as normas de seguran\u00e7a espec\u00edficas e que n\u00e3o falham em condi\u00e7\u00f5es normais ou de avaria.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-etl-vs-ul-vs-ce-what-s-the-difference\">ETL vs. UL vs. CE: Qual \u00e9 a diferen\u00e7a?<\/h2>\n\n\n\n<p>Embora todas estas certifica\u00e7\u00f5es estejam relacionadas com a seguran\u00e7a, t\u00eam objectivos diferentes e prov\u00eam de organiza\u00e7\u00f5es diferentes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-ul-underwriters-laboratories\"><strong>UL (Underwriters Laboratories)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>O que \u00e9:<\/strong>\u00a0Uma empresa global de certifica\u00e7\u00e3o de seguran\u00e7a fundada em 1894, amplamente considerada como a norma de seguran\u00e7a mais reconhecida na Am\u00e9rica do Norte<\/li>\n\n\n\n<li><strong>O que significa:<\/strong>\u00a0Uma marca UL indica que a fonte de alimenta\u00e7\u00e3o foi testada segundo normas de seguran\u00e7a espec\u00edficas dos EUA (como a UL 60950-1 para equipamento de TI ou a UL 62368-1, a norma mais recente para equipamento AV\/TI)<\/li>\n\n\n\n<li><strong>Processo de ensaio:<\/strong>\u00a0Avalia\u00e7\u00e3o rigorosa dos componentes el\u00e9ctricos, do isolamento, da toler\u00e2ncia \u00e0 temperatura e da resist\u00eancia ao fogo<\/li>\n\n\n\n<li><strong>Foco regional:<\/strong>\u00a0Principalmente na Am\u00e9rica do Norte, embora a UL certifique produtos em todo o mundo<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-etl-intertek-testing-laboratories\"><strong>ETL (Intertek Testing Laboratories)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>O que \u00e9:<\/strong>\u00a0Uma marca de certifica\u00e7\u00e3o de seguran\u00e7a da Intertek, outro Laborat\u00f3rio de Testes Reconhecido Nacionalmente (NRTL) reconhecido pela OSHA<\/li>\n\n\n\n<li><strong>Equ\u00edvoco comum:<\/strong>\u00a0Muitos acreditam que a ETL \u00e9 inferior \u00e0 UL, mas isso \u00e9 incorreto<\/li>\n\n\n\n<li><strong>Facto importante:<\/strong>\u00a0<strong>A ETL testa os produtos exatamente segundo as mesmas normas de seguran\u00e7a que a UL<\/strong>\u00a0(por exemplo, UL 62368-1)<\/li>\n\n\n\n<li><strong>Diferen\u00e7a pr\u00e1tica:<\/strong>\u00a0Os fabricantes podem escolher a ETL para obterem resultados mais r\u00e1pidos ou custos mais baixos, mas a valida\u00e7\u00e3o de seguran\u00e7a \u00e9 equivalente \u00e0 UL<\/li>\n\n\n\n<li><strong>Procurar:<\/strong>\u00a0\u201cMarca \u201dETL Listed\u201c - n\u00e3o apenas \u201dETL Tested\", que n\u00e3o tem o mesmo peso<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-ce-conformite-europeenne\"><strong>CE (Conformidade Europeia)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>O que \u00e9:<\/strong>\u00a0Uma marca de conformidade obrigat\u00f3ria para produtos vendidos no Espa\u00e7o Econ\u00f3mico Europeu<\/li>\n\n\n\n<li><strong>Distin\u00e7\u00e3o importante:<\/strong>\u00a0<strong>A CE n\u00e3o \u00e9 uma certifica\u00e7\u00e3o de seguran\u00e7a como a UL ou a ETL<\/strong>-\u00e9 a declara\u00e7\u00e3o do fabricante de que o produto cumpre os requisitos da UE em mat\u00e9ria de sa\u00fade, seguran\u00e7a e ambiente<\/li>\n\n\n\n<li><strong>O que abrange:<\/strong>\u00a0V\u00e1rias diretivas da UE, incluindo:\n<ul class=\"wp-block-list\">\n<li>Diretiva Baixa Tens\u00e3o (LVD) para seguran\u00e7a el\u00e9ctrica<\/li>\n\n\n\n<li>Diretiva relativa \u00e0 compatibilidade electromagn\u00e9tica (CEM)<\/li>\n\n\n\n<li>Diretiva Restri\u00e7\u00e3o de Subst\u00e2ncias Perigosas (RoHS)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Foco regional:<\/strong>\u00a0Europa - os produtos a\u00ed vendidos devem ter a marca\u00e7\u00e3o CE<\/li>\n\n\n\n<li><strong>Considera\u00e7\u00f5es fundamentais:<\/strong>\u00a0Uma vez que os fabricantes autodeclaram a conformidade com a norma CE, o n\u00edvel de verifica\u00e7\u00e3o independente varia<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-certification-comparison-table\">Tabela de compara\u00e7\u00e3o de certifica\u00e7\u00f5es<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Certifica\u00e7\u00e3o<\/th><th class=\"has-text-align-left\" data-align=\"left\">Tipo<\/th><th class=\"has-text-align-left\" data-align=\"left\">Organismo de ensaio<\/th><th class=\"has-text-align-left\" data-align=\"left\">Estatuto jur\u00eddico<\/th><th class=\"has-text-align-left\" data-align=\"left\">O que garante<\/th><\/tr><\/thead><tbody><tr><td><strong>UL<\/strong><\/td><td>Certifica\u00e7\u00e3o de seguran\u00e7a<\/td><td>Underwriters Laboratories (terceiros)<\/td><td>Norma reconhecida na Am\u00e9rica do Norte<\/td><td>Produto testado de acordo com as normas de seguran\u00e7a UL espec\u00edficas<\/td><\/tr><tr><td><strong>ETL<\/strong><\/td><td>Certifica\u00e7\u00e3o de seguran\u00e7a<\/td><td>Intertek (terceiros)<\/td><td>Equivalente ao UL na Am\u00e9rica do Norte<\/td><td>Produto testado segundo as mesmas normas UL que a certifica\u00e7\u00e3o UL<\/td><\/tr><tr><td><strong>CE<\/strong><\/td><td>Marca de Conformidade<\/td><td>Auto-declara\u00e7\u00e3o do fabricante (pode envolver ensaios por terceiros)<\/td><td>Necess\u00e1rio para venda na Europa<\/td><td>O fabricante afirma estar em conformidade com as diretivas da UE<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-why-these-differences-matter-for-your-purchase\">Porque \u00e9 que estas diferen\u00e7as s\u00e3o importantes para a sua compra<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-for-north-american-users-usa-canada\"><strong>Para utilizadores da Am\u00e9rica do Norte (EUA\/Canad\u00e1):<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Dar prioridade \u00e0 certifica\u00e7\u00e3o UL ou ETL<\/strong>-Estes asseguram que a fonte de alimenta\u00e7\u00e3o cumpre as normas de seguran\u00e7a norte-americanas<\/li>\n\n\n\n<li>N\u00e3o confie apenas na marca\u00e7\u00e3o CE - uma fonte de alimenta\u00e7\u00e3o apenas CE pode n\u00e3o ter sido concebida para os sistemas el\u00e9ctricos ou requisitos de seguran\u00e7a norte-americanos<\/li>\n\n\n\n<li>Procurar marcas adicionais como\u00a0<strong>cULus<\/strong>\u00a0(certifica\u00e7\u00e3o combinada dos E.U.A. e Canad\u00e1) se o equipamento for utilizado no Canad\u00e1<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-for-european-users\"><strong>Para utilizadores europeus:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A marca\u00e7\u00e3o CE \u00e9\u00a0<strong>obrigat\u00f3rio<\/strong>-nunca adquira uma fonte de alimenta\u00e7\u00e3o sem a mesma para utiliza\u00e7\u00e3o na Europa<\/li>\n\n\n\n<li>Considerar certifica\u00e7\u00f5es adicionais como\u00a0<strong>T\u00dcV<\/strong>,\u00a0<strong>VDE<\/strong>, ou\u00a0<strong>BSI<\/strong>\u00a0para uma garantia adicional, uma vez que implicam a realiza\u00e7\u00e3o de ensaios por terceiros<\/li>\n\n\n\n<li>Tenha em aten\u00e7\u00e3o que alguns produtos com certifica\u00e7\u00e3o UL tamb\u00e9m cumprem os requisitos CE em mat\u00e9ria de compatibilidade transatl\u00e2ntica<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-for-international-global-applications\"><strong>Para candidaturas internacionais\/globais:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Procure fontes de alimenta\u00e7\u00e3o com\u00a0<strong>certifica\u00e7\u00f5es m\u00faltiplas<\/strong>\u00a0(por exemplo, UL + CE + outras marcas regionais)<\/li>\n\n\n\n<li>Considerar\u00a0<strong>entrada universal<\/strong>\u00a0fontes de alimenta\u00e7\u00e3o (90-264V) com certifica\u00e7\u00f5es mundiais para m\u00e1xima flexibilidade<\/li>\n\n\n\n<li>Verifique sempre se o produto est\u00e1 certificado para a tens\u00e3o e o tipo de ficha espec\u00edficos do seu pa\u00eds<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-to-verify-authentic-certifications\">Como verificar certifica\u00e7\u00f5es aut\u00eanticas<\/h2>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Verificar o r\u00f3tulo do produto<\/strong>\u00a0para a marca de certifica\u00e7\u00e3o efectiva - n\u00e3o apenas uma men\u00e7\u00e3o em materiais de marketing<\/li>\n\n\n\n<li><strong>Procurar o n\u00famero de certifica\u00e7\u00e3o<\/strong>\u00a0normalmente impresso junto ao log\u00f3tipo (por exemplo, \u201cUL E123456\u201d ou \u201cETL 789012\u201d)<\/li>\n\n\n\n<li><strong>Visitar a base de dados em linha do certificador<\/strong>\u00a0para verificar se a certifica\u00e7\u00e3o \u00e9 atual e v\u00e1lida<\/li>\n\n\n\n<li><strong>Cuidado com as falsifica\u00e7\u00f5es<\/strong>-alguns produtos podem apresentar log\u00f3tipos sem a devida certifica\u00e7\u00e3o<\/li>\n\n\n\n<li><strong>Verificar se a terminologia est\u00e1 correta:<\/strong>\n<ul class=\"wp-block-list\">\n<li>UL ou ETL\u00a0<strong>\u201cListado\u201d<\/strong>\u00a0significa totalmente certificado<\/li>\n\n\n\n<li><strong>\u201cReconhecido\u201d<\/strong>\u00a0significa que apenas determinados componentes s\u00e3o certificados<\/li>\n\n\n\n<li><strong>\u201cTestado\u201d<\/strong>\u00a0s\u00f3 por si n\u00e3o \u00e9 sin\u00f3nimo de certifica\u00e7\u00e3o total<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-practical-recommendations\">Recomenda\u00e7\u00f5es pr\u00e1ticas<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-for-consumer-electronics\"><strong>Para eletr\u00f3nica de consumo:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Escolha fontes de alimenta\u00e7\u00e3o com, pelo menos, certifica\u00e7\u00e3o UL ou ETL<\/li>\n\n\n\n<li>Substituir os carregadores perdidos\/danificados por substitutos certificados e n\u00e3o por alternativas baratas n\u00e3o certificadas<\/li>\n\n\n\n<li>Tenha especial cuidado com as fontes de alimenta\u00e7\u00e3o de alta pot\u00eancia (como as dos PCs para jogos), que implicam um risco maior se n\u00e3o forem certificadas<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-for-business-industrial-use\"><strong>Para uso comercial\/industrial:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Exigir certifica\u00e7\u00f5es adequadas nos cadernos de encargos<\/li>\n\n\n\n<li>Considere que as fontes de alimenta\u00e7\u00e3o certificadas podem ter um melhor suporte de garantia<\/li>\n\n\n\n<li>Lembre-se de que a utiliza\u00e7\u00e3o de fontes de alimenta\u00e7\u00e3o n\u00e3o certificadas pode violar as ap\u00f3lices de seguro ou os requisitos regulamentares<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-for-manufacturers-and-resellers\"><strong>Para fabricantes e revendedores:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Compreender os requisitos de certifica\u00e7\u00e3o para os seus mercados-alvo<\/li>\n\n\n\n<li>Or\u00e7amento para custos de certifica\u00e7\u00e3o - normalmente $5,000-$15,000+ por modelo de produto<\/li>\n\n\n\n<li>Ter em conta o prazo t\u00edpico de 4 a 8 semanas para os testes de certifica\u00e7\u00e3o<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-the-bottom-line\">A linha de fundo<\/h2>\n\n\n\n<p><strong>As certifica\u00e7\u00f5es UL e ETL fornecem o mais alto n\u00edvel de garantia de seguran\u00e7a<\/strong>&nbsp;atrav\u00e9s de testes independentes efectuados por terceiros de acordo com normas reconhecidas.&nbsp;<strong>A marca\u00e7\u00e3o CE \u00e9 um requisito legal para a Europa<\/strong>&nbsp;mas baseia-se mais na auto-declara\u00e7\u00e3o do fabricante.<\/p>\n\n\n\n<p>Ao selecionar uma fonte de alimenta\u00e7\u00e3o:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Escolher sempre produtos certificados<\/strong>\u00a0em rela\u00e7\u00e3o a alternativas n\u00e3o certificadas<\/li>\n\n\n\n<li><strong>Adequar a certifica\u00e7\u00e3o \u00e0 sua regi\u00e3o<\/strong>\u00a0(UL\/ETL para a Am\u00e9rica do Norte, CE para a Europa)<\/li>\n\n\n\n<li><strong>Verificar se a certifica\u00e7\u00e3o \u00e9 genu\u00edna<\/strong>\u00a0atrav\u00e9s de bases de dados em linha, sempre que poss\u00edvel<\/li>\n\n\n\n<li><strong>Lembre-se que a certifica\u00e7\u00e3o \u00e9 um processo cont\u00ednuo<\/strong>-os produtos podem perder a certifica\u00e7\u00e3o se o fabrico mudar<\/li>\n<\/ol>\n\n\n\n<p>Ao compreender estas certifica\u00e7\u00f5es, pode tomar decis\u00f5es informadas que d\u00e3o prioridade \u00e0 seguran\u00e7a, conformidade e fiabilidade nas suas escolhas de fontes de alimenta\u00e7\u00e3o.<\/p>","protected":false},"excerpt":{"rendered":"<p>When selecting a power supply for your computer, gaming console, or industrial equipment, you\u2019ll notice small logos like&nbsp;ETL, UL, and CE&nbsp;on the label. These certifications&#8230;<\/p>","protected":false},"author":2,"featured_media":36290,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","_elementor_edit_mode":"","_elementor_template_type":"","_elementor_data":"","_elementor_page_settings":null,"_elementor_conditions":[]},"categories":[1],"tags":[],"class_list":["post-36289","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.5 (Yoast SEO v26.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Understanding ETL, UL, and CE: Your Guide to Power Supply Safety Certifications - C2PSU<\/title>\n<meta name=\"description\" content=\"When selecting a power supply for your computer, gaming console, or industrial equipment, you\u2019ll notice small logos like ETL, UL, and CE on the label.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.c2psu.com\/pt\/compreender-o-etl-ul-e-o-ce\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Understanding ETL, UL, and CE: Your Guide to Power Supply Safety Certifications\" \/>\n<meta property=\"og:description\" content=\"When selecting a power supply for your computer, gaming console, or industrial equipment, you\u2019ll notice small logos like ETL, UL, and CE on the label.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.c2psu.com\/pt\/compreender-o-etl-ul-e-o-ce\/\" \/>\n<meta property=\"og:site_name\" content=\"C2PSU\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-24T02:47:38+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-24T02:47:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.c2psu.com\/wp-content\/uploads\/Understanding-ETL-UL-and-CE-for-Power-Supplies-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1700\" \/>\n\t<meta property=\"og:image:height\" content=\"1291\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"F, CHOCO\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"F, CHOCO\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.c2psu.com\/understanding-etl-ul-and-ce\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.c2psu.com\/understanding-etl-ul-and-ce\/\"},\"author\":{\"name\":\"F, CHOCO\",\"@id\":\"https:\/\/www.c2psu.com\/#\/schema\/person\/c64f08601719a1221d0fd37c08b44c6d\"},\"headline\":\"Understanding ETL, UL, and CE: Your Guide to Power Supply Safety Certifications\",\"datePublished\":\"2026-01-24T02:47:38+00:00\",\"dateModified\":\"2026-01-24T02:47:44+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.c2psu.com\/understanding-etl-ul-and-ce\/\"},\"wordCount\":978,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.c2psu.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.c2psu.com\/understanding-etl-ul-and-ce\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.c2psu.com\/wp-content\/uploads\/Understanding-ETL-UL-and-CE-for-Power-Supplies-1.jpg\",\"articleSection\":[\"Industry News\"],\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.c2psu.com\/understanding-etl-ul-and-ce\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.c2psu.com\/understanding-etl-ul-and-ce\/\",\"url\":\"https:\/\/www.c2psu.com\/understanding-etl-ul-and-ce\/\",\"name\":\"Understanding ETL, UL, and CE: Your Guide to Power Supply Safety Certifications - 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