B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/133, 337/14
B32B 27/10 (2006.01) B32B 29/00 (2006.01) H01B 3/00 (2006.01) H01B 3/52 (2006.01) H01B 7/02 (2006.01) H01B 9/06 (2006.01) H01B 13/08 (2006.01)
Patent
CA 1269606
ABSTRACT OF THE DISCLOSURE A composite tape for forming at least part of the insulation of a high voltage electrical cable, particularly an oil-filled cable, and a cable including such insulating tape. The composite tape includes at least one layer of paper tape having a mineral salt weight content in the range from 0.1 to 3% of the weight of the paper bonded to a surface or the surfaces of a film of polymeric material which has a thickness in the range from 10 to 30% of the total thickness of the tape. Preferred polymeric materials are polypropylene and polymethyl-pentene. A bonding material can be propylene-ethylene copolymer.
522423
Bosisio Claudio
Smart & Biggar
Societa Cavi Pirelli S.p.a.
LandOfFree
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