Post-accident examination of platinum resistance thermometers installed in the TMI-2 reactor
Laboratory tests conducted on one resistance thermometer and thermowell removed from TMI-2 showed that neither its calibration nor its time response was adversely affected by the accident or post-accident conditions to which it had been exposed. No Never-Seez was used in its thermowell. A broken conduit fitting allowed moisture to enter the extension cables, which affected their insulation resistance. Tests on similar thermometers installed in TMI-2 and Crystal River Unit 3 at shutdown and at full power showed that the time response of the TMI-2 thermometer met the 5-second limit required by the plant technical specifications.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400; AC07-76ID01570
- OSTI ID:
- 5063009
- Report Number(s):
- ORNL/M-98; GEND-INF-064; ON: TI86001300
- Country of Publication:
- United States
- Language:
- English
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