Metal-clad electricity line and method of manufacturing it

Details Metal-clad electricity line and method of manufacturing it Metal-clad electricity line and method of manufacturing it

1990-10-15

1992-02-18

Nimmo, Morris H.

Electricity: conductors and insulators

With fluids or vacuum

Conduits, cables and conductors

174 14R, 174 21C, 174 22C, 174 28, H01B 906

Patent

active

050896652

ABSTRACT:
For each phase, a metal-clad line comprises a phase conductor surrounded by an aluminum sheath, with each aluminum sheath being surrounded by a sheath which is gas-tight relative to the outside. The inside of said gas-tight sheath(s) is/are filled with a gas having good dielectric properties. The aluminum sheath is made up of two half-shells with each half-shell being formed by a folded strip whose section is in the form of a semicircle terminated at each end by a shoulder and a flat, with the two half-shells being juxtaposed and assembled to each other via their flats. The invention also provides a method of manufacturing the metal-clad line which is particularly applicable to underground metal-clad lines.

REFERENCES:
IEEE Transactions on Power Apparatus & Systems, vol. 90, No. 6, Nov. 1971, pp. 2631-2637; B. O. Pedersen et al.: "Development of a Compressed-Gas-Insulated Transmission Line".

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