Overvoltage protector unit for well constructions

Details Overvoltage protector unit for well constructions Overvoltage protector unit for well constructions

H - Electricity

01

H

H01H 85/04 (2006.01) H01T 1/14 (2006.01) H01T 4/06 (2006.01)

Patent

CA 2083414

Overvoltage protector unit for use in a well in which an overvoltage protection device is mounted in a grounding housing and electrically separates a conductor pin in the housing from the housing during normal voltage conditions. The conductor pin is mounted within a flame resistant resilient elastomeric dielectric support which also electrically isolates it from the housing. The support cushions the pin before installation of the unit and the unit is unlikely to suffer damage during storage or transit upon the protection device failing, the resilient support flexes to enable line to ground contact to be established.

L'invention concerne un appareil de protection contre les surtensions pour un puits, selon lequel un dispositif de protection est monté dans un logement de mise à la terre et isole électriquement une broche conductrice à l'intérieur du logement, dans des conditions de tension normale. La broche conductrice est montée à l'intérieur d'un support diélectrique élastomère résilient et ininflammable qui isole lui aussi électriquement la broche du logement. Le support sert de surface d'appui à la broche avant l'installation de l'appareil de protection et l'appareil est relativement protégé contre les dommages pendant l'entreposage ou le transport. En cas de défaillance du dispositif de protection, le support résilient fléchit pour permettre l'établissement du contact entre la ligne sous tension et la terre.

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