V. C. Summer Nuclear Station steam generator replacement
- Bechtel Corp., Gaithersburg, MD (United States)
- South Carolina Electric and Gas Co., Jenkinsville, SC (United States)
The Virgil C. Summer Steam Generator Replacement Project involved the first-ever replacement of an existing steam generator with a different and later vintage component from the original equipment manufacturer (OEM), in this case Westinghouse Model Delta-75 steam generators to replace Westinghouse Model D-3 steam generators, which had been plaguing South Carolina Electric and Gas Company`s (SCE and G) Virgil C. Summer Nuclear Plant since shortly after initial operation in 1982. This project also involved the first use of laser metrology technology for steam generator-to-reactor coolant system severance cutting, machining, and component fitup and the first use of an impregnated sponge blast media for reactor coolant system pipe end decontamination. The sequence of events leading to the decision to replace steam generators and during the replacement process is described. Intensive planning and teamwork, combined with input from SCE and G and the use of mockups to train the work force in a simulated radiological environment, were instrumental in achieving world-record schedule performance and setting a new US record for the lowest accumulated radiation exposure during a steam generator replacement project while completing the project without a single lost workday case incident.
- OSTI ID:
- 103684
- Report Number(s):
- CONF-950414--
- Country of Publication:
- United States
- Language:
- English
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