An explanation for the decline in URD cable failures and associated nonhomogeneous Poisson process
- American Electric Power Service Corp., Columbus, OH (United States)
The possible need to remove from service approximately 2,000 miles of high molecular weight polyethylene URD cable has been a topic of concern over recent years at American Electric Power. Earlier projections indicated that failures would increase at an exponential rate and that a typical section of cable would be replaced prior to reaching 30 years of age. However, recent data analysis shows a downward trend in failures after a cable system has been operating for about 18 years. A possible explanation for this finding is the elimination of cable defects through the failure repair (splicing) process. The findings suggest that, in addition to age and failure history, the decision to remove a cable section from service should be based on the condition of the cable after repair.
- OSTI ID:
- 7304230
- Journal Information:
- IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Vol. 9:1; ISSN 0885-8977
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ELECTRIC CABLES
FAILURE MODE ANALYSIS
POWER TRANSMISSION LINES
REPAIR
UNDERGROUND POWER TRANSMISSION
CABLES
CONDUCTOR DEVICES
ELECTRICAL EQUIPMENT
EQUIPMENT
POWER TRANSMISSION
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
240301* - Power Transmission Lines & Cables- Power Cables- (1990-)