ELECTRIC CABLE Russian patent published in 2007 - IPC H01B7/02 

FIELD: cable engineering; feeding submersible power systems, mainly submersible oil-extraction pump motors.

SUBSTANCE: proposed cable designed for trouble-free operation in depths of up to 3000 m at stratal liquid temperature of 140 to 160 °C and gas factor over 300 m³/t has current-carrying conductors covered with adhesive radiation-modified polyethylene layers, sheath, pad, and armor; common additional sheath is made of thermoplastic material, 0.1 - 1.0 mm thick on flat side and 1.0 - 1.5 mm, on lateral sides; it is disposed over three insulated conductors longitudinally placed in common plane and tightly fitted to one another through their plasma pre-treated insulation.

EFFECT: extended service life of cable.

1 cl, 1 dwg