Le connecteur parafoudre est utilis\u00e9 pour assurer la protection des lignes a\u00e9riennes basse tension et des \u00e9quipements \u00e9lectriques contre les surtensions. <\/p>\n
Il permet de conduire le courant de la foudre jusqu’au sol.<\/p>\n
Le connecteur parafoudre comprend les \u00e9l\u00e9ments suivants :
\n– Un connecteur \u00e0 perforation d’isolant,
\n– Un embout ins\u00e9r\u00e9 dans la t\u00e9tine du connecteur,
\n– Un parafoudre (oxyde de m\u00e9tal surmoul\u00e9 de silicone) viss\u00e9 dans l’embout,
\n– Un fouet de mise \u00e0 la terre soud\u00e9 sur le parafoudre.<\/p>\n
Le parafoudre r\u00e9agit :
\n– Apr\u00e8s un certain nombre de surintensit\u00e9s, lorsque le courant passant dans le parafoudre augmente de plus d’ 1mA,
\n– En cas de d\u00e9charge atmosph\u00e9rique (coup de foudre), le courant d\u00e9passant 65mA. <\/p>\n
Apr\u00e8s que le parafoudre ait r\u00e9agit, le fouet de mise \u00e0 la terre se s\u00e9pare physiquement du connecteur. Il est alors n\u00e9cessaire de remplacer le parafoudre avec une pi\u00e8ce de rechange disponible (comprenant le parafoudre et le fouet de mise \u00e0 la terre). 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