EP 0880147 A1 19981125 - Multiconductor electrical cable
Title (en)
Multiconductor electrical cable
Title (de)
Elektrisches mehradriges Kabel
Title (fr)
Câble électrique multiconducteur
Publication
Application
Priority
US 85840897 A 19970519
Abstract (en)
A multiconductor electrical cable for use in a subterranean wellbore comprises a plurality of electrical conductors (28) with at least one of the electrical conductors sheathed in at least one inner layer (32) of a semi-conductive material, and at least one layer (34) of an insulating material. A jacket (36) of elastomeric material surrounds the plurality of electrical conductors, and an outer metal armour (38) covers the jacket of elastomeric material. The semi-conductive material (32) has electrical properties to reduce voltage stress between an outer surface of the electrical conductor (28) and an inner surface ofthe insulating material (34). The resulting cable has increased resistance to electrical failure when operating at voltages of about 8 kV or more within a subterranean wellbore. <IMAGE>
IPC 1-7
IPC 8 full level
H01B 3/44 (2006.01); H01B 7/04 (2006.01); H01B 7/28 (2006.01)
CPC (source: EP)
H01B 3/441 (2013.01); H01B 7/046 (2013.01); H01B 7/2806 (2013.01)
Citation (search report)
- [X] GB 2113453 A 19830803 - ELECTRICITY COUNCIL
- [X] US 4398058 A 19830809 - GERTH DIETER [DE], et al
- [X] DE 2504555 A1 19760805 - SIEMENS AG
- [X] WO 8201785 A1 19820527 - JPS ELTEKNIK AS [DK], et al
- [X] US 3651244 A 19720321 - SILVER DAVID A, et al
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0880147 A1 19981125; CA 2238120 A1 19981119; NO 982217 D0 19980515; NO 982217 L 19981120
DOCDB simple family (application)
EP 98301355 A 19980225; CA 2238120 A 19980515; NO 982217 A 19980515