H - Electricity – 01 – B
Patent
H - Electricity
01
B
337/16
H01B 7/02 (2006.01) H01B 9/06 (2006.01)
Patent
CA 1286737
ABSTRACT OF THE DISCLOSURE A direct current electrical cable with a conductor encircled by stratified insulation impregnated with a conventional insulating compound, a sheath around the insulation and a tensioned reinforcing structure around the sheath. The tension on the reinforcing structure is sufficient to compress the sheath and to eliminate micro-cavities in the insulation. The reinforcing structure is made of tapes with sufficient elasticity to withstand the expansion and contraction of the cable during use to thereby prevent formation of micro-cavities during use of the cable.
543527
Lanfranconi Gianmario
Metra Pietro
Miramonti Gianni
Priaroggia Paolo Gazzana
Smart & Biggar
Societa Cavi Pirelli S.p.a.
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