Protection device for power cables with...

Details Protection device for power cables with... Protection device for power cables with...

H - Electricity

02

G

H02G 15/24 (2006.01) H02G 15/10 (2006.01) H02G 15/188 (2006.01)

Patent

CA 2675610

Protection device for power cables with impregnated- paper-based insulation Protection device for a power cable (3) having an insulation (4) based on oil-impregnated paper andan external protection (15). It comprises a barrier layer (11) placed in contact with the insulator (4) and made of an oil-impermeable elastomer material having a permittivity of between (2) and (100).The elastomer material is practically impermeable to water vapour and has a Mooney viscosity of between (12) and (90) at 100°C.

La présente invention concerne un dispositif de protection pour des câbles d'alimentation avec une isolation à base de papier imprégné. Le dispositif de protection pour un câble d'alimentation (3) possède une isolation (4) basée sur un papier imprégné d'huile et une protection extérieure (15). Il comprend une couche barrière (11) placée au contact de l'isolant (4) et constituée d'un matériau en élastomère imperméable à l'huile ayant une permittivité comprise entre 2 et 100. Le matériau d'élastomère est quasiment imperméable à la vapeur d'eau et possède une viscosité de Mooney comprise entre 12 et 90 à 100 °C.

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