<\/span><\/h3>\nPour les syst\u00e8mes bas\u00e9s aux \u00c9tats-Unis, le Protection contre les surtensions LEEYEE RS232<\/strong> fournit :<\/p>\n\n- \n
Imax 20kA<\/strong> capacit\u00e9 d'intervention en cas de temp\u00eates extr\u00eames dans le Midwest<\/p>\n<\/li>\n- \n
Temps de r\u00e9ponse <1ns<\/strong> pour une suppression rapide des transitoires<\/p>\n<\/li>\n- \n
Tension de serrage <15V<\/strong> pour prot\u00e9ger les signaux \u00b112V<\/p>\n<\/li>\n- \n
UL 497A, IEC 61643, ITU-T K.20\/K.21<\/strong> conformit\u00e9 pour l'acceptation industrielle<\/p>\n<\/li>\n<\/ul>\n
\n<\/span>Applications industrielles aux \u00c9tats-Unis<\/strong><\/span><\/h3>\n\n- \n
L'\u00e9nergie<\/strong> - Protection des liaisons SCADA dans les parcs \u00e9oliens du Texas<\/p>\n<\/li>\n- \n
Fabrication<\/strong> - S\u00e9curit\u00e9 des communications PLC dans les usines automobiles du Midwest<\/p>\n<\/li>\n- \n
Transports en commun<\/strong> - Syst\u00e8mes de contr\u00f4le du m\u00e9tro dans les grandes zones m\u00e9tropolitaines<\/p>\n<\/li>\n- \n
P\u00e9trole et gaz<\/strong> - Liaisons de contr\u00f4le des plates-formes offshore dans le golfe du Mexique<\/p>\n<\/li>\n<\/ol>\n
\n<\/span>Lignes directrices pour l'installation aux \u00c9tats-Unis<\/strong><\/span><\/h3>\n\n- \n
Installer des protecteurs aux endroits suivants aux deux extr\u00e9mit\u00e9s<\/strong> de liaisons RS232 entre b\u00e2timents<\/p>\n<\/li>\n- \n
Maintien de la r\u00e9sistance de la terre <5 ohms<\/strong> selon les recommandations du NEC<\/p>\n<\/li>\n- \n
Utilisez des c\u00e2bles \u00e0 paires torsad\u00e9es blind\u00e9es pour une suppression suppl\u00e9mentaire des surtensions.<\/p>\n<\/li>\n<\/ul>\n
\n<\/span>Conclusion<\/strong><\/span><\/h3>\nPour les installations am\u00e9ricaines, l'int\u00e9gration d'un parasurtenseur RS232 est un moyen rentable d'\u00e9liminer les risques de surtension et de maintenir le temps de fonctionnement.<\/p>\n
\n<\/span>FAQs : Protecteur de surtension RS232 aux \u00c9tats-Unis<\/strong><\/span><\/h2>\nQ1 :<\/strong> Le code am\u00e9ricain exige-t-il une protection contre les surtensions pour les lignes RS232 ?
Bien que la NEC se concentre sur les lignes \u00e9lectriques, les meilleures pratiques industrielles le recommandent fortement.<\/p>\nQ2 :<\/strong> Ce dispositif peut-il prot\u00e9ger contre l'\u00e9lectromagn\u00e9tisme d\u00fb \u00e0 la foudre \u00e0 proximit\u00e9 ?
Oui, lorsqu'il est correctement mis \u00e0 la terre, il peut supprimer efficacement les transitoires induits.<\/p>","protected":false},"excerpt":{"rendered":"Aux \u00c9tats-Unis, les surtensions \u00e9lectriques restent l'une des principales causes de d\u00e9faillance des \u00e9quipements industriels. Des parcs \u00e9oliens du Texas aux syst\u00e8mes de signalisation du m\u00e9tro de New York, les lignes de communication RS232 sont souvent les points faibles cach\u00e9s des r\u00e9seaux d'automatisation. La NOAA signale que des \u00c9tats comme la Floride, la Louisiane et le Mississippi connaissent des taux de foudre parmi les plus \u00e9lev\u00e9s au monde...<\/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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