High voltage flexible cable for pressurized gas insulated transmission line
A high voltage flexible cable for pressurized gas insulated transmission line service is described comprising in combination a continuous gas-tight cylindrical metallic conductive sheath corrugated circumferentially throughout its length, at least one elongated coextensive conductor member disposed within the sheath and having an outer surface corrugated circumferentially throughout its length, and tubular elements of electrically insulating material disposed lengthwise of the cable in a transversely packed circumferential array around the conductor member between the sheath and the conductor member. The tubular elements throughout their length are squeezed radially of the cable between the sheath and the conductor member with the roots of the sheath corrugations and the crests of the conductor member corrugations radially indenting the tubular elements at axially spaced intervals sufficient to interlock the tubular elements with both the sheath and the conductor member to resist relative longitudinal movement between the tubular elements. Both the sheath and the conductor member, and the tubular elements are dimensioned in cross section and deformed radially of the cable such that adjacent tubular elements circumferentially around the conductor member are in forceful surface contact to prevent particulate migration in the cable radial direction during cable use.
- Assignee:
- NOV; NOV-88-088597; EDB-88-016152
- Patent Number(s):
- US 4705914
- OSTI ID:
- 5857918
- Resource Relation:
- Patent File Date: Filed date 10 Nov 1986
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GAS-INSULATED CABLES
DESIGN
ELECTRIC CONDUCTORS
POWER TRANSMISSION
POWER TRANSMISSION LINES
PRESSURIZING
SLEEVES
CABLES
CONDUCTOR DEVICES
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
EQUIPMENT
200300* - Electric Power Engineering- Power Transmission & Distribution- (-1989)