Steam Generator Group Project: Annual Report, 1983.

摘要

The Steam Generator Group Project (SGGP) is an NRC program jointly funded by consortia from France, Italy and Japan, and the Electric Power Research Institute. The SGGP utilizes a steam generator removed from service at a nuclear plant as a vehicle for research on a variety of safety and reliability issues. This report is an annual summary of progress on the program for 1983. Information is presented on the task of removing 969 plugs by drilling them out of the tubes in the steam generator to permit access for eddy current nondestructive testing probes. A description is given of two post-service baseline eddy current inspections, one by Zetec and one by Intercontrole, of about 3000 tubes. Photographic documentation is provided of damage observations on the secondary side of the unit. Corrosion coupon results are reported from the channel head decontaminations described in the 1982 annual report. Plans for further eddy current testing are discussed, including a plan to conduct a round robin series of tests in which up to eight independent, commercial inspection teams would all inspect the same set of selected tubes in the steam generator.