Patent ID: 6229093
Filing Date: 2001-05-08
Classification: H02G

Abstract:
A mineral-insulated electrical cable, comprising a tubular casing and a plurality of metal conductors running within the tubular casing and projecting out of it, each conductor being insulated against each other and against the tubular casing, the tubular casing having a gas-tight seal on at least one end through which the conductors pass, each conductor projecting out of the seal having in connection with the seal and over a portion of the conductor's length a sheath made of at least one material selected from the group consisting of ceramics and glass, said sheath being constructed as a liquid-tight sleeve on the conductor at least in connection with the seal, the sheath comprising at least one first layer made of ceramic and a liquid-tight outer layer made of a glass, wherein the outer surface of the at least one first layer is at least one of porous and rough, and the glass of the outer layer lies on and penetrates the porous or rough outer surface.