{"id":10331,"date":"2023-07-16T14:50:05","date_gmt":"2023-07-16T06:50:05","guid":{"rendered":"https:\/\/lorentzzi.com\/?p=10331"},"modified":"2025-07-07T10:28:04","modified_gmt":"2025-07-07T02:28:04","slug":"the-differences-between-1p-and-2p-rcd","status":"publish","type":"post","link":"https:\/\/lorentzzi.com\/pt\/the-differences-between-1p-and-2p-rcd\/","title":{"rendered":"As diferen\u00e7as entre os RCDs 1P e 2P"},"content":{"rendered":"
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Um dispositivo de corrente residual (RCD) \u00e9 um dispositivo el\u00e9trico comum usado para detectar se h\u00e1 uma corrente residual. vazamento em um circuito<\/span><\/a> e cortam o circuito imediatamente quando um vazamento \u00e9 encontrado. Em ambientes dom\u00e9sticos e comerciais, a fun\u00e7\u00e3o dos protetores contra fuga \u00e0 terra \u00e9 fundamental, pois pode evitar acidentes de seguran\u00e7a, como choque el\u00e9trico e inc\u00eandio. Na sele\u00e7\u00e3o de protetores contra vazamentos, a diferen\u00e7a entre 1P e 2P geralmente est\u00e1 envolvida. Ent\u00e3o, o que s\u00e3o protetores de fuga 1P e 2P? Qual \u00e9 a diferen\u00e7a?<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Tanto o 1P quanto o 2P s\u00e3o tipos de protetores contra fuga \u00e0 terra, sendo que o 1P se refere a um protetor contra fuga \u00e0 terra de polo \u00fanico e o 2P se refere a um protetor contra fuga \u00e0 terra de polo duplo. Em termos simples, o 1P s\u00f3 pode proteger um circuito, enquanto o 2P pode proteger dois circuitos ao mesmo tempo.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"1P\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Diferen\u00e7as de prote\u00e7\u00e3o RCD 1P e 2P<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Especificamente, o protetor contra fugas 1P tem apenas um dispositivo de prote\u00e7\u00e3o contra fugas, que geralmente \u00e9 instalado em um circuito monof\u00e1sico. Ele pode detectar se h\u00e1 fuga no circuito, mas s\u00f3 pode proteger um \u00fanico circuito. Por exemplo, quando voc\u00ea estiver usando o forno na cozinha, se houver um vazamento no circuito da m\u00e1quina de lavar ao mesmo tempo, o protetor contra vazamentos 1P n\u00e3o poder\u00e1 proteg\u00ea-lo, pois s\u00f3 pode proteger um circuito.<\/p>

O protetor contra fugas 2P tem dois dispositivos de prote\u00e7\u00e3o contra fugas, que podem proteger dois circuitos ao mesmo tempo. Quando ocorrer um vazamento em um circuito, o protetor de vazamento cortar\u00e1 imediatamente a fonte de alimenta\u00e7\u00e3o do circuito, de modo a evitar que o vazamento se espalhe ainda mais. Se ocorrer um vazamento em dois circuitos ao mesmo tempo, o protetor contra vazamentos 2P tamb\u00e9m pode cortar os dois circuitos ao mesmo tempo, protegendo assim a seguran\u00e7a das pessoas.<\/p>

Al\u00e9m da diferen\u00e7a na faixa de prote\u00e7\u00e3o, h\u00e1 algumas outras diferen\u00e7as entre o protetor contra fuga \u00e0 terra 1P e o protetor contra fuga \u00e0 terra 2P.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Diferen\u00e7as de custo entre RCD 1P e 2P<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Primeiro, os RCDs 1P geralmente s\u00e3o mais baratos do que os RCDs 2P. Como o protetor diferencial 1P s\u00f3 precisa de um dispositivo de prote\u00e7\u00e3o contra fuga \u00e0 terra, e o protetor diferencial 2P precisa de dois dispositivos de prote\u00e7\u00e3o contra fuga \u00e0 terra, seu custo \u00e9 mais alto. Al\u00e9m disso, o protetor diferencial 2P precisa de mais espa\u00e7o para ser instalado, pois necessita de duas fia\u00e7\u00f5es el\u00e9tricas, enquanto o protetor diferencial 1P precisa de apenas uma fia\u00e7\u00e3o el\u00e9trica.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"1P\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Diferen\u00e7a nos m\u00e9todos de acionamento do protetor contra vazamento 1P e do protetor contra vazamento 2P<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Em segundo lugar, os m\u00e9todos de acionamento do protetor contra fugas 1P e do protetor contra fugas 2P tamb\u00e9m s\u00e3o diferentes. O protetor contra fugas 1P s\u00f3 pode detectar fugas unipolares, ou seja, depois que a corrente entra no aparelho el\u00e9trico a partir da fonte de alimenta\u00e7\u00e3o, ela sai de um polo do aparelho el\u00e9trico (geralmente o fio energizado) e retorna ao outro polo da fonte de alimenta\u00e7\u00e3o (geralmente o fio neutro). Portanto, se a corrente entrar no aparelho el\u00e9trico pelo fio neutro e depois sair pelo fio energizado, o protetor contra fugas 1P n\u00e3o poder\u00e1 detectar a fuga. O protetor contra fugas 2P pode detectar fugas bipolares, ou seja, n\u00e3o importa de qual polo a corrente flui, ela pode ser detectada.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"1P\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Diferen\u00e7a de corrente nominal<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Por fim, a corrente nominal e o tempo de a\u00e7\u00e3o de fuga nominal do protetor de fuga \u00e0 terra 1P e do protetor de fuga \u00e0 terra 2P tamb\u00e9m s\u00e3o diferentes. De modo geral, a corrente nominal e o tempo de a\u00e7\u00e3o de fuga nominal do protetor diferencial 2P ser\u00e3o maiores do que os do protetor diferencial 1P, porque ele precisa lidar com mais circuitos. Portanto, ao escolher um protetor contra fugas, \u00e9 necess\u00e1rio garantir que ele possa atender aos requisitos de corrente nominal e tempo de a\u00e7\u00e3o de fuga do seu circuito.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Conclus\u00e3o<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Em resumo, a maior diferen\u00e7a entre o protetor diferencial 1P e o protetor diferencial 2P est\u00e1 em sua faixa de prote\u00e7\u00e3o. Se voc\u00ea precisar proteger um \u00fanico circuito, o RCD 1P \u00e9 suficiente; se precisar proteger v\u00e1rios circuitos, o RCD 2P \u00e9 a melhor op\u00e7\u00e3o. \u00c9 claro que, ao instalar um protetor contra fugas, voc\u00ea tamb\u00e9m precisa considerar fatores como a corrente nominal, a tens\u00e3o nominal e o tempo de a\u00e7\u00e3o de fuga nominal. Durante o processo de instala\u00e7\u00e3o, \u00e9 melhor que seja feito por profissionais para garantir a seguran\u00e7a e a efic\u00e1cia.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

A residual current device (RCD) is a common electrical device used to detect whether there is a leakage in a circuit and cut off the circuit immediately when a leakage is found. In domestic and commercial environments, the role of earth leakage protectors is crucial because it can prevent safety accidents such as electric shock […]<\/p>\n","protected":false},"author":1,"featured_media":10333,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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