Development of 500-kV XLPE cables and accessories for long-distance underground transmission lines. Part 5: Long-term performance for 500-kV XLPE cables and joints
- Tokyo Electric Power Co. (Japan)
- Chubu Electric Power Co., Inc., Nagoya (Japan)
- Kansai Electric Power Co., Osaka (Japan)
- Furukawa Electric Co., Ltd., Tokyo (Japan)
- Sumitomo Electric Industries Ltd., Osaka (Japan)
- Hitachi Cable Ltd. (Japan)
- Fujikura Ltd., Tokyo (Japan)
500-kV XLPE-insulated cable with an insulation thickness of 27 mm and its joint have been developed for long distance transmission lines. First, in the basic research made from 1989 to 1992, elicited were the performance-determining factors of XLPE cables and joints. Their respective insulation designs were made in terms of these factors. On the basis of these designs, full-sized cables and joints were manufactured in the course of the development research performed from 1992 to 1993. The next step was to evaluate the initial electrical performance to estimate the suitability of the designs. As the final step of the research, a long-term loading cycle test was carried out by means of a model line with joints as installed and using the same techniques as employed in the actual commercial lines for a full eight months. Thus the long-term reliability for commercial use could be verified.
- OSTI ID:
- 372203
- Report Number(s):
- CONF-960111--
- Journal Information:
- IEEE Transactions on Power Delivery, Journal Name: IEEE Transactions on Power Delivery Journal Issue: 3 Vol. 11; ISSN 0885-8977; ISSN ITPDE5
- Country of Publication:
- United States
- Language:
- English
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