Surge attenuating cable

Details Surge attenuating cable Surge attenuating cable

1986-04-28

1987-08-18

Nimmo, Morris H.

Electricity: conductors and insulators

Conduits, cables or conductors

Conductive armor or sheath

174105SC, 174106SC, 333243, H01B 734

Patent

active

046878823

ABSTRACT:
In a shielded power cable of the type comprising inner and outer conductors separated by cable insulation defining a displacement current path between the conductors for high frequency currents, the cable insulation incorporates one or more coaxial layers of semiconductive material consisting of cable insulation material loaded with a conductive filler, such as carbon fibres or spheres. The semiconductive layer is designed to maximize high frequency losses thereby to facilitate attenuation of high voltage surges caused by lightning or by switching.

REFERENCES:
patent: 3643004 (1972-02-01), McKean
patent: 4109098 (1978-08-01), Olsson et al.
patent: 4347487 (1982-08-01), Martin
patent: 4361723 (1982-11-01), Hvizd, Jr. et al.
patent: 4486721 (1984-12-01), Cornelius et al.
patent: 4499438 (1985-02-01), Cornelius et al.
patent: 4510468 (1985-04-01), Mayer

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