Technical, economic, and institutional issues affecting the life extension of cables
NRC regulations and industry standards provide flexibility to the nuclear industry for demonstrating cable design life goals. Allowable methods for qualifying in-containment cables include laboratory type testing, reference to operating experience, analysis, and combinations of the above. In practice most utilities have used laboratory type testing as the primary method for demonstrating cable life assurance. These tests are frequently performed prior to initial plant operation and include a laboratory accelerated test (lasting a few weeks to a few months) to demonstrate that a cable will function during accident conditions that might occur anytime during a 40-year plant life. Type test rigor and documentation depend strongly on specific utility commitments to satisfy various vintages of standards and implementing regulations. For plant operation beyond 40 years, demonstration of continued cable qualification will be necessary. This might be accomplished by reanalysis of the original qualification basis, by supplementing the original qualification basis with additional laboratory test data, by supplementing the original qualification basis with operational experience, by a combination of the above techniques, or by a cable replacement program. 22 refs., 1 tab.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6108239
- Report Number(s):
- SAND-88-2209C; CONF-890721-6; ON: DE89005234; TRN: 89-016428
- Resource Relation:
- Conference: Joint ASME/JSME pressure vessel and piping conference, Honolulu, HI, USA, 23 Jul 1989; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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