Self-sealing electrical cable having a finned inner layer

H - Electricity – 01 – B

Patent

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Details

H01B 7/00 (2006.01) H01B 7/285 (2006.01) H01B 13/00 (2006.01)

Patent

CA 2446724

An electrical cable (11) and a method for manufacturing the electrical cable (14) extruded thereabout, a ribbed or finned surface exterior thereto which includes a plurality of longitudinally extending ribs or fins (15) between which exist a plurality of channel regions (16) which provides self-sealing properties to the cable (11), all applied to the conductor as a combined multilayer, the inner layer (14) and outer layer (13) merging to form the fins (15) therebetween.

La présente invention concerne un câble électrique (11) et un procédé de fabrication de ce câble électrique (11) dans lequel plusieurs conducteurs (12) comportent une couche de protection interne (14) extrudée tout autour dont une surface extérieure côtelée ou nervurée est formée d'une pluralité de côtes ou de nervures (15) s'étendant longitudinalement entre lesquelles se trouvent plusieurs régions formant des canaux (16); une couche isolante externe (13) disposée tout autour; et un matériau (10) situé dans les régions de canaux (16) qui confère au câble des propriétés d'auto-étanchéité, toutes ces couches étant appliquées sur le conducteur sous forme d'une multicouche combinée, la couche interne (14) et la couche externe (13) s'associant pour former les nervures (15) entre ces dernières.

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