{"id":2144,"date":"2021-06-04T09:18:48","date_gmt":"2021-06-04T01:18:48","guid":{"rendered":"https:\/\/kanglight.com\/?p=2144"},"modified":"2026-06-30T14:45:47","modified_gmt":"2026-06-30T06:45:47","slug":"sete-mitos-comuns-sobre-a-iluminacao-publica-de-led","status":"publish","type":"post","link":"https:\/\/kanglight.com\/pt\/blog\/seven-common-myths-about-led-street-lighting\/","title":{"rendered":"Sete mitos comuns sobre a ilumina\u00e7\u00e3o p\u00fablica de LED"},"content":{"rendered":"<p>Com a melhoria gradual das condi\u00e7\u00f5es de vida, h\u00e1 cada vez mais luzes de LED nas ruas. Precisamos de ilumina\u00e7\u00e3o p\u00fablica tanto em \u00e1reas residenciais quanto comerciais. Na vida cotidiana, a ilumina\u00e7\u00e3o de LED \u00e9 mais ecol\u00f3gica do que as luzes de rua comuns. Portanto, muitos pa\u00edses optam por substituir as luzes de rua por luzes de LED mais ecol\u00f3gicas. Infelizmente, muitas pessoas entendem mal as luzes de LED, acreditando que elas t\u00eam v\u00e1rios problemas, como radia\u00e7\u00e3o e danos ao meio ambiente. Portanto, suas vantagens e desvantagens se tornaram objeto de muitas discuss\u00f5es.<\/p>\n<p>O poss\u00edvel impacto da ilumina\u00e7\u00e3o p\u00fablica de LED sobre a sa\u00fade e o meio ambiente sempre foi um assunto muito discutido. Com o desenvolvimento desse di\u00e1logo, tamb\u00e9m surgiram mal-entendidos e caracteriza\u00e7\u00f5es err\u00f4neas da ilumina\u00e7\u00e3o p\u00fablica de LED. Reunimos uma s\u00e9rie de recursos valiosos sobre esse t\u00f3pico para ajudar a esclarecer alguns dos equ\u00edvocos mais comuns sobre a ilumina\u00e7\u00e3o p\u00fablica de LED.<\/p>\n<div class=\"row row-collapse row-full-width\"  id=\"row-1498466021\">\n\n\t<div id=\"col-301490533\" class=\"col medium-4 large-4\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1981276396\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"600\" height=\"800\" src=\"https:\/\/kanglight.com\/wp-content\/uploads\/2021\/05\/QEF7TUFI1P6ZQHX.png\" class=\"attachment-large size-large\" alt=\"ILUMINA\u00c7\u00c3O LED\" srcset=\"https:\/\/kanglight.com\/wp-content\/uploads\/2021\/05\/QEF7TUFI1P6ZQHX.png 600w, https:\/\/kanglight.com\/wp-content\/uploads\/2021\/05\/QEF7TUFI1P6ZQHX-225x300.png 225w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1981276396 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1468551232\" class=\"col medium-4 large-4\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1665500482\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"600\" height=\"800\" src=\"https:\/\/kanglight.com\/wp-content\/uploads\/2021\/05\/9XYS@YE30K8P9YO_98B1-1.png\" class=\"attachment-large size-large\" alt=\"Ilumina\u00e7\u00e3o LED\" srcset=\"https:\/\/kanglight.com\/wp-content\/uploads\/2021\/05\/9XYS@YE30K8P9YO_98B1-1.png 600w, https:\/\/kanglight.com\/wp-content\/uploads\/2021\/05\/9XYS@YE30K8P9YO_98B1-1-225x300.png 225w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1665500482 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<h2><strong>Equ\u00edvoco 1: a l\u00e2mpada LED tem uma vida \u00fatil curta<\/strong><\/h2>\n<p>Os fabricantes de l\u00e2mpadas de LED para ilumina\u00e7\u00e3o p\u00fablica esperam que a vida \u00fatil das l\u00e2mpadas de LED chegue a cerca de dez anos. A vida \u00fatil das luzes de rua comuns \u00e9 de cerca de tr\u00eas anos. Em contrapartida, a mudan\u00e7a para a ilumina\u00e7\u00e3o p\u00fablica de LED pode economizar mais dinheiro e recursos. Como fonte de luz de ilumina\u00e7\u00e3o, o brilho da l\u00e2mpada tem um processo gradual de atenua\u00e7\u00e3o e escurecimento (l\u00e2mpadas fluorescentes, l\u00e2mpadas econ\u00f4micas). Esse processo pode ser chamado de decaimento da luz. No entanto, como todas as fontes de luz prim\u00e1rias, o brilho da ilumina\u00e7\u00e3o p\u00fablica de LED diminuir\u00e1 com o tempo.<\/p>\n<p>No entanto, o tempo de decaimento da emiss\u00e3o de luz do LED n\u00e3o \u00e9 afetado pelas condi\u00e7\u00f5es ambientais, como temperatura ambiente, umidade e ventila\u00e7\u00e3o. Em compara\u00e7\u00e3o com as l\u00e2mpadas comuns, isso reduz a influ\u00eancia de fatores externos no brilho da ilumina\u00e7\u00e3o. Portanto, a vida \u00fatil da ilumina\u00e7\u00e3o p\u00fablica de LED \u00e9 muito maior do que a da ilumina\u00e7\u00e3o geral. Na ilumina\u00e7\u00e3o p\u00fablica de LED em n\u00edvel de aplica\u00e7\u00e3o, quando o decaimento da luz excede 50%, o olho humano pode sentir a mudan\u00e7a de brilho. Nesse momento, o brilho do produto n\u00e3o \u00e9 adequado para ilumina\u00e7\u00e3o. Resumindo, ao comprar um LED, devemos prestar aten\u00e7\u00e3o na velocidade de decomposi\u00e7\u00e3o da luz e n\u00e3o no tempo de uso.<\/p>\n<h2><strong>Equ\u00edvoco 2: As luzes LED s\u00e3o prejudiciais \u00e0s pessoas<\/strong><\/h2>\n<p>Em primeiro lugar, devemos entender que nem toda luz de ondas curtas \u00e9 prejudicial \u00e0s pessoas. Pelo contr\u00e1rio, a luz de comprimento de onda curto \u00e9 uma parte essencial da natureza. Ela existe na luz solar e demonstra desempenhar um papel crucial em muitos processos fisiol\u00f3gicos. E a maioria das situa\u00e7\u00f5es de ilumina\u00e7\u00e3o p\u00fablica se beneficia da luz de ondas curtas. Os comprimentos de onda curtos s\u00e3o um componente vital do espectro vis\u00edvel, com v\u00e1rios benef\u00edcios que v\u00e3o desde a est\u00e9tica at\u00e9 a seguran\u00e7a. S\u00f3 que se muita luz de ondas curtas for liberada \u00e0 noite, isso afetar\u00e1 nosso sono ou nossa vida.<\/p>\n<p>As luzes de LED para ilumina\u00e7\u00e3o p\u00fablica quase n\u00e3o prejudicam os seres humanos e os animais. E o uso de ilumina\u00e7\u00e3o p\u00fablica de LED \u00e9 mais seguro do que as l\u00e2mpadas tradicionais, pois pode minimizar a luz azul emitida. Embora n\u00e3o haja evid\u00eancias de que os LEDs azuis sejam mais perigosos do que qualquer outra fonte de luz azul, h\u00e1 evid\u00eancias de que a luz azul pode causar dores de cabe\u00e7a, n\u00e1usea e perturba\u00e7\u00e3o do sono. Isso ocorre porque a luz azul reduz os n\u00edveis de melatonina no corpo, enfraquecendo o sistema imunol\u00f3gico e interrompendo o ritmo circadiano. No entanto, o problema da luz azul est\u00e1 em toda a ilumina\u00e7\u00e3o p\u00fablica, n\u00e3o apenas na ilumina\u00e7\u00e3o p\u00fablica de LED.<\/p>\n<h2><strong>Equ\u00edvoco 3: As l\u00e2mpadas LED n\u00e3o dissipam o calor<\/strong><\/h2>\n<p>A ilumina\u00e7\u00e3o p\u00fablica de LED \u00e9 muito sens\u00edvel \u00e0 eletricidade est\u00e1tica, que \u00e9 determinada pelas caracter\u00edsticas do pr\u00f3prio LED. Quando ela excede a tens\u00e3o direta DC m\u00e1xima permitida e a tens\u00e3o reversa m\u00e1xima, a l\u00e2mpada LED pode causar danos ou avarias. Se houver luzes de rua de LED, cada luz ter\u00e1 um resistor antiest\u00e1tico. Al\u00e9m disso, h\u00e1 quatro resistores para limitar a corrente. O resistor antiest\u00e1tico pode efetivamente suprimir os danos causados pela eletricidade est\u00e1tica ao LED. O resistor de limita\u00e7\u00e3o de corrente \u00e9 usado principalmente para limitar a quantidade de corrente que o m\u00f3dulo inteiro passa. Esse projeto pode melhorar de forma eficaz a capacidade de combate \u00e0 sobrecarga do LED e aumentar a estabilidade do produto. Ao mesmo tempo, o fato de os quatro resistores estarem marcados \u00e9 um sinal que pode identificar rapidamente se a qualidade do m\u00f3dulo \u00e9 est\u00e1vel ou n\u00e3o.<\/p>\n<p>Muitas pessoas acham que a resist\u00eancia da ilumina\u00e7\u00e3o p\u00fablica de LED \u00e9 significativa, portanto, sua capacidade de dissipa\u00e7\u00e3o de calor \u00e9 relativamente ruim. Acredita-se que desastres acidentais, como inc\u00eandios, ocorrer\u00e3o durante o uso. Algumas pessoas pensam erroneamente que para instalar luzes de LED \u00e9 necess\u00e1rio instalar materiais de alta tecnologia para dissipar o calor. Isso gera altos custos. Ap\u00f3s muitos testes, a temperatura do dissipador de calor \u00e9 apenas 3 a 5 graus Celsius mais alta do que a da parte inferior do radiador. Em outras palavras, se for poss\u00edvel us\u00e1-lo, um material com excelente condutividade t\u00e9rmica, a temperatura poder\u00e1 ser reduzida em 3 a 5 graus Celsius quando a resist\u00eancia t\u00e9rmica for zero. Portanto, as l\u00e2mpadas de rua de LED n\u00e3o precisam usar materiais exclusivos para dissipar o calor.<\/p>\n<h2><strong>Equ\u00edvoco 4: o m\u00e9todo de dissipa\u00e7\u00e3o de calor da l\u00e2mpada LED \u00e9 prejudicial ao meio ambiente<\/strong><\/h2>\n<p>E a propor\u00e7\u00e3o de dissipa\u00e7\u00e3o de calor radiante pode ser ignorada quando a temperatura atual da l\u00e2mpada \u00e9 de cerca de 50 graus Celsius. E mesmo que o revestimento de radia\u00e7\u00e3o anunciado pelos fabricantes tenha um bom efeito de radia\u00e7\u00e3o, como eles anunciam, mesmo que atinja a capacidade de radia\u00e7\u00e3o da radia\u00e7\u00e3o do corpo negro, sua propor\u00e7\u00e3o de dissipa\u00e7\u00e3o de calor \u00e9 de apenas alguns por cento. A import\u00e2ncia desse fato ainda precisa ser considerada! Al\u00e9m disso, o pr\u00f3prio revestimento dificultar\u00e1 a condu\u00e7\u00e3o de calor, afetando assim a dissipa\u00e7\u00e3o de calor por convec\u00e7\u00e3o.<\/p>\n<p>Ao mesmo tempo, o tubo de calor da ilumina\u00e7\u00e3o p\u00fablica de LED tem boa condutividade t\u00e9rmica. Mas o calor precisa ser retirado por convec\u00e7\u00e3o de ar. Se n\u00e3o houver pe\u00e7as para dissipa\u00e7\u00e3o de calor, o tubo de calor atingir\u00e1 rapidamente o equil\u00edbrio t\u00e9rmico. Nesse momento, a temperatura aumenta junto com o calor. Entretanto, se a dissipa\u00e7\u00e3o de calor for adicionada ao tubo de calor, ele acabar\u00e1 usando aletas para dissipar o calor.<\/p>\n<p>Al\u00e9m disso, o ponto de contato entre a aleta e o tubo de calor n\u00e3o \u00e9 t\u00e3o bom quanto o de outros m\u00e9todos. Como resultado, o custo \u00e9 alto e o efeito de dissipa\u00e7\u00e3o de calor n\u00e3o \u00e9 melhorado. No entanto, os tubos de calor ainda s\u00e3o \u00fateis para conduzir o calor em LEDs integrados, mas eles devem ter uma estrutura razo\u00e1vel!<\/p>\n<h2><strong>Mal-entendido 5: O pre\u00e7o \u00e9 caro<\/strong><\/h2>\n<p>Muitas pessoas acham que o pre\u00e7o da ilumina\u00e7\u00e3o p\u00fablica de LED \u00e9 caro, mas, nos \u00faltimos dez anos, a ilumina\u00e7\u00e3o p\u00fablica de LED vem diminuindo. E a vida \u00fatil da ilumina\u00e7\u00e3o p\u00fablica de LED \u00e9 muito maior do que a da ilumina\u00e7\u00e3o comum, portanto, de acordo com a an\u00e1lise abrangente de dados, o pre\u00e7o da ilumina\u00e7\u00e3o p\u00fablica padr\u00e3o \u00e9 mais de dez vezes maior do que o pre\u00e7o da ilumina\u00e7\u00e3o p\u00fablica de LED. Portanto, achamos que a ilumina\u00e7\u00e3o p\u00fablica de LED \u00e9 cara e isso n\u00e3o \u00e9 correto.<\/p>\n<h2><strong>Equ\u00edvoco 6: As l\u00e2mpadas LED n\u00e3o s\u00e3o adequadas para uso no frio<\/strong><\/h2>\n<p>Esse \u00e9 um aspecto que muitas vezes n\u00e3o entendemos. Mas, de fato, a ilumina\u00e7\u00e3o p\u00fablica de LED funcionar\u00e1 com mais efici\u00eancia em condi\u00e7\u00f5es de frio. E as luzes de rua comuns podem ligar o interruptor no inverno para ligar lentamente depois de um tempo, mas as luzes de rua de LED podem ligar imediatamente. Ao mesmo tempo, as luzes de LED para ilumina\u00e7\u00e3o p\u00fablica s\u00e3o muito mais seguras do que as luzes fluorescentes. As luzes de LED n\u00e3o cont\u00eam subst\u00e2ncias t\u00f3xicas, como chumbo e merc\u00fario. No ver\u00e3o, a estrutura exclusiva da l\u00e2mpada LED faz com que sua capacidade de dissipa\u00e7\u00e3o de calor seja maior do que a das l\u00e2mpadas de rua comuns.<\/p>\n<p>\u00c9 sabido que o brilho da ilumina\u00e7\u00e3o p\u00fablica de LED \u00e9 maior do que o da ilumina\u00e7\u00e3o p\u00fablica comum. Muitas pessoas pensam erroneamente que o brilho da ilumina\u00e7\u00e3o p\u00fablica de LED \u00e9 alto e consome mais energia. Mas o brilho das luzes de LED \u00e9 medido pela intensidade luminosa. A intensidade luminosa refere-se \u00e0 intensidade luminosa na dire\u00e7\u00e3o esperada. Como a intensidade luminosa dos LEDs dispon\u00edveis \u00e9 pequena, a milicandela (mcd) \u00e9 comumente usada como unidade de intensidade luminosa. De modo geral, a fonte de luz emite seu fluxo luminoso em diferentes dire\u00e7\u00f5es com diferentes intensidades. E a intensidade da luz vis\u00edvel emitida por unidade de \u00e2ngulo s\u00f3lido em uma ordem espec\u00edfica \u00e9 chamada de intensidade luminosa, abreviada como brilho axial.<\/p>\n<h2><strong>Mal-entendido 7: A intensidade do LED \u00e9 alta e consome mais energia<\/strong><\/h2>\n<p>A corrente da ilumina\u00e7\u00e3o p\u00fablica de LED \u00e9 r\u00e1pida, e a energia el\u00e9trica \u00e9 imensa. Se o vento for lento para trabalhar, a energia el\u00e9trica ser\u00e1 pequena. Em outras palavras, ao mesmo tempo, quanto mais trabalho a corrente fizer, maior ser\u00e1 a energia el\u00e9trica. Quanto maior for a intensidade da ilumina\u00e7\u00e3o p\u00fablica de LED, maior ser\u00e1 o brilho do produto. Tome como exemplo o LED vermelho de tr\u00eas l\u00e2mpadas. Quando a ilumina\u00e7\u00e3o axial \u00e9 de 1200mcd, a corrente \u00e9 de 40ma e a pot\u00eancia \u00e9 de 0,48W; sob o mesmo brilho, o LED branco de tr\u00eas l\u00e2mpadas tem uma corrente de 18ma e a pot\u00eancia \u00e9 de apenas 0,24W. Podemos ver que a pot\u00eancia dos dois tipos de luz \u00e9 diferente com o mesmo brilho. Portanto, o foco da ilumina\u00e7\u00e3o p\u00fablica de LED \u00e9 o brilho axial, n\u00e3o a pot\u00eancia.<\/p>","protected":false},"excerpt":{"rendered":"<p>Com a melhoria gradual das condi\u00e7\u00f5es de vida, h\u00e1 cada vez mais luzes de LED nas ruas. Precisamos de ilumina\u00e7\u00e3o p\u00fablica tanto em \u00e1reas residenciais quanto comerciais. Na vida cotidiana, a ilumina\u00e7\u00e3o de LED \u00e9 mais ecol\u00f3gica do que as luzes de rua comuns. Portanto, muitos pa\u00edses optam por substituir as luzes de rua por luzes de LED mais ecol\u00f3gicas. Infelizmente, muitos...<\/p>","protected":false},"author":16,"featured_media":1430,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[],"class_list":["post-2144","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Six Common Myths about LED Street Lighting | Kanglight.com<\/title>\n<meta name=\"description\" content=\"LED street lights come into our lives. Do you have a misunderstanding about them? Answer the six most common misconceptions for you.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kanglight.com\/pt\/blog\/sete-mitos-comuns-sobre-a-iluminacao-publica-de-led\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Six Common Myths about LED Street Lighting | Kanglight.com\" \/>\n<meta property=\"og:description\" content=\"LED street lights come into our lives. Do you have a misunderstanding about them? 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