EP 0971371 A1 20000112 - High voltage direct current electrical cable with mass-impregnated insulation
Title (en)
High voltage direct current electrical cable with mass-impregnated insulation
Title (de)
Gleichstrom-Hochspannungs-Elektrokabel mit massenimprägnierter Isolierung
Title (fr)
Câble électrique courant continu à haute tension avec une isolation impregnée en masse
Publication
Application
Priority
- EP 99112688 A 19990702
- EP 98112473 A 19980706
Abstract (en)
Mass-impregnated electrical cable, particularly for carrying high voltage direct current, having an insulation in which, around the insulating layer impregnated with an insulating fluid, a containing layer is provided comprising at least one winding of a tape of a semiconducting elastomeric material, which exerts an effective action of containing the insulating fluid, while preventing formation of micro-cavities within the impregnated insulating layer. The material constituting the tape has high physical-chemical resistance to the degrading action of the components of the insulating fluid, both in the cold state and, in particular, at the operating temperature of the cable. <IMAGE>
IPC 1-7
IPC 8 full level
H01B 3/18 (2006.01); H01B 7/02 (2006.01); H01B 7/14 (2006.01); H01B 9/02 (2006.01); H01B 9/06 (2006.01); H01B 17/34 (2006.01); H01B 17/62 (2006.01)
CPC (source: EP)
H01B 9/0611 (2013.01)
Citation (search report)
- [A] US 3621110 A 19711116 - MCGRATH MARTIN H
- [A] US 3780206 A 19731218 - REYNOLDS E
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0971371 A1 20000112; EP 0971371 B1 20040512; AR 019223 A1 20011226; AT E266896 T1 20040515; AU 3800199 A 20000120; AU 753501 B2 20021017; BR 9902546 A 20000328; CA 2277418 A1 20000106; CA 2277418 C 20090407; DE 69917142 D1 20040617; DE 69917142 T2 20041111; ES 2221269 T3 20041216; NZ 336468 A 20001027
DOCDB simple family (application)
EP 99112688 A 19990702; AR P990103243 A 19990705; AT 99112688 T 19990702; AU 3800199 A 19990706; BR 9902546 A 19990706; CA 2277418 A 19990706; DE 69917142 T 19990702; ES 99112688 T 19990702; NZ 33646899 A 19990629