Long-life cable development: cable materials survey. Final report
This survey was conducted in several European countries, Japan, and the United States to study the practices of extruded cable materials used in distribution cables and delineate present and future technological trends. Materials suppliers, compounders, cable manufacturers and one European electric utility company were contacted. In Europe, with minor exceptions, and in Japan, without exception, crosslinked polyethylene (XLPE) was used exclusively and that ethylene propylene rubber was not adopted by utilities because of higher cost. In Europe and Japan, the failure rates of XLPE cable, which is invariably equipped with a polymeric jacket, are reported to be lower than in the USA. Taped shields, impurities, voids and construction defects were reported as the primary causes of high extruded cable failure rates. In all countries visited, the cleanliness of cable compounds has historically improved. To retard water treeing, different methods are utilized or are being contemplated. No revolutionary changes or totally new materials are being contemplated in the foreseeable future.
- Research Organization:
- Connecticut Univ., Storrs (USA). Inst. of Materials Science
- OSTI ID:
- 6124615
- Report Number(s):
- EPRI-EL-4398; ON: TI86920244
- Country of Publication:
- United States
- Language:
- English
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24 POWER TRANSMISSION AND DISTRIBUTION
ASIA
CABLES
CONDUCTOR DEVICES
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATION
EQUIPMENT
EUROPE
JAPAN
MANUFACTURERS
MATERIALS
NORTH AMERICA
POWER DISTRIBUTION
SURVEYS
USA