<\/span><\/h3>\nPara sistemas baseados nos EUA, o Protetor contra picos de tens\u00e3o LEEYEE RS232<\/strong> fornece:<\/p>\n\n- \n
Imax 20kA<\/strong> capacidade para tempestades extremas no Midwest<\/p>\n<\/li>\n- \n
Tempo de resposta <1ns<\/strong> para supress\u00e3o r\u00e1pida de transientes<\/p>\n<\/li>\n- \n
Tens\u00e3o de aperto <15V<\/strong> para prote\u00e7\u00e3o dos sinais de \u00b112V<\/p>\n<\/li>\n- \n
UL 497A, IEC 61643, ITU-T K.20\/K.21<\/strong> conformidade para aceita\u00e7\u00e3o industrial<\/p>\n<\/li>\n<\/ul>\n
\n<\/span>Aplica\u00e7\u00f5es industriais nos EUA<\/strong><\/span><\/h3>\n\n- \n
Energia<\/strong> - Prote\u00e7\u00e3o da liga\u00e7\u00e3o SCADA nos parques e\u00f3licos do Texas<\/p>\n<\/li>\n- \n
Fabrico<\/strong> - Seguran\u00e7a das comunica\u00e7\u00f5es PLC nas f\u00e1bricas de autom\u00f3veis do Midwest<\/p>\n<\/li>\n- \n
Tr\u00e2nsito p\u00fablico<\/strong> - Sistemas de controlo dos metropolitanos nas grandes \u00e1reas metropolitanas<\/p>\n<\/li>\n- \n
Petr\u00f3leo e g\u00e1s<\/strong> - Liga\u00e7\u00f5es de controlo de plataformas offshore no Golfo do M\u00e9xico<\/p>\n<\/li>\n<\/ol>\n
\n<\/span>Diretrizes de instala\u00e7\u00e3o nos EUA<\/strong><\/span><\/h3>\n\n- \n
Instalar protectores em ambas as extremidades<\/strong> de liga\u00e7\u00f5es RS232 entre edif\u00edcios<\/p>\n<\/li>\n- \n
Manter a resist\u00eancia de terra <5 ohms<\/strong> de acordo com as recomenda\u00e7\u00f5es NEC<\/p>\n<\/li>\n- \n
Utilize cabos de par entran\u00e7ado blindados para uma supress\u00e3o adicional de picos de tens\u00e3o<\/p>\n<\/li>\n<\/ul>\n
\n<\/span>Conclus\u00e3o<\/strong><\/span><\/h3>\nPara as instala\u00e7\u00f5es dos EUA, a integra\u00e7\u00e3o de um protetor contra sobretens\u00f5es RS232 \u00e9 uma forma econ\u00f3mica de eliminar os riscos de sobretens\u00f5es el\u00e9ctricas e manter o tempo de funcionamento.<\/p>\n
\n<\/span>Perguntas frequentes: Protetor contra picos de tens\u00e3o RS232 nos EUA<\/strong><\/span><\/h2>\nQ1:<\/strong> O c\u00f3digo dos EUA exige prote\u00e7\u00e3o contra sobretens\u00f5es para linhas RS232?
Embora o NEC se centre nas linhas el\u00e9ctricas, as melhores pr\u00e1ticas industriais recomendam-no vivamente.<\/p>\nQ2:<\/strong> Este dispositivo pode proteger contra PEM de um raio pr\u00f3ximo?
Sim - quando devidamente ligado \u00e0 terra, pode suprimir eficazmente os transientes induzidos.<\/p>","protected":false},"excerpt":{"rendered":"Em todos os Estados Unidos, os incidentes com sobretens\u00f5es el\u00e9ctricas continuam a ser uma das principais causas de falha do equipamento industrial. Desde parques e\u00f3licos no Texas a sistemas de sinaliza\u00e7\u00e3o de metro em Nova Iorque, as linhas de comunica\u00e7\u00e3o RS232 s\u00e3o frequentemente os pontos fracos escondidos nas redes de automa\u00e7\u00e3o. A NOAA relata que estados como a Fl\u00f3rida, Louisiana e Mississippi registam alguns dos maiores \u00edndices de rel\u00e2mpagos do mundo...<\/p>","protected":false},"author":18,"featured_media":23487,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,488,422],"tags":[],"class_list":["post-27892","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-surge-protection","category-industry-news"],"acf":[],"yoast_head":"\n
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