The development of underjacket moisture barrier cable as a counter measure against treeing

Journal Article · Mon Jan 01 04:00:00 EST 1990 · IEEE (Institute of Electrical and Electronics Engineers) Transactions on Power Delivery; (USA)

DOI:https://doi.org/10.1109/61.107254· OSTI ID:5128996

Bow, K E ^[1]

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1. Dow Chemical U.S.A., Granville, OH (USA)

Materials have been developed to allow rapid commercialization of under-jacket moisture barrier sheathed medium voltage power cables. Plastic coated aluminium and copper tapes meet the needs for a radial metallic moisture barrier. These tapes have outstanding initial adhesion to polyethylene, chlorinated polyethylene or polyvinyl chloride jackets and excellent bond stability during thermal loading, temperature cycling, water aging, and exposure to elevated temperatures. Semi-conductive water-swellable tapes have been developed which function as cushion (thermal expansion) layers and longitudinal water blocks. These tapes are commercially available from several sources. Commercially available hot melt adhesives are effective in sealing the overlap of the metallic moisture barrier and meet the criteria for adhesion and bond retentions. These materials have been combined to produce a viable water impervious medium voltage power cable. Under-jacket moisture barrier cables have been commercially manufactured and have passed several key industry test. The properties and installation characteristics of the cable are detailed in this paper.

• OSTI ID: 5128996
• Journal Information: IEEE (Institute of Electrical and Electronics Engineers) Transactions on Power Delivery; (USA), Journal Name: IEEE (Institute of Electrical and Electronics Engineers) Transactions on Power Delivery; (USA) Vol. 5:1; ISSN 0885-8977; ISSN ITPDE
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240201* -- Power System Networks
Transmission & Distribution-- AC Systems-- (1990-)
ALUMINIUM
CABLES
COATINGS
CONDUCTOR DEVICES
COPPER
DIFFUSION BARRIERS
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATION
ELEMENTS
EQUIPMENT
EXPANSION
HYDROGEN COMPOUNDS
MATERIALS
MATERIALS TESTING
METALS
MOISTURE
OXYGEN COMPOUNDS
PROTECTIVE COATINGS
SEMICONDUCTOR MATERIALS
TESTING
THERMAL EXPANSION
TRANSITION ELEMENTS
WATER