Electricity: conductors and insulators – Conduits – cables or conductors – Combined
Patent
1976-03-01
1977-06-28
Grimley, Arthur T.
Electricity: conductors and insulators
Conduits, cables or conductors
Combined
174 36, 174 47, H01R 500
Patent
active
040327086
ABSTRACT:
This invention relates to an electrical transmission line and, in particular, to a conduit for underground and underwater high voltage electrical power transmission lines.
A resin bonded filament wound pipe is provided with a coaxial electrically conductive shield layer which is protected by a non-conductive coating. The pipe is generally of the bell and spigot type, and a conductive adhesive is employed in the joint to make the connection between adjacent pipes, and also to complete the electrical connection between the conductive elements in the adjacent sections or pipes. In completing said electrical connection, the electrostatic shielding for the insulation for the pipe is effectively established. A transmission line is supported within the pipe.
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patent: 3943273 (1976-03-01), DE Putter
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