Effect of aging on response time of nuclear plant pressure sensors
TL;DRAbstract
A research program was initiated to study the effects of normal aging on the dynamic performance of safety-related pressure transmitters in nuclear power plants. The project began with an experimental assessment of the conventional and new testing methods for measurement of response time of pressure transmitters. This was followed by developing a laboratory set up and performing initial tests to study the aging characteristics of representative transmitters of the type used in power plants. The project also included a search of the LER data base for pressure sensing system, problems and a review of the Regulatory Guide 1.118 and the industry standards on performance testing of pressure transmitters. The work reported herein was a feasibility study performed over a six-month period. As such, the results and conclusions presented herein are preliminary. 15 refs., 44 figs., 25 tabs.
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A research program was initiated to study the effects of normal aging on the dynamic performance of safety-related pressure transmitters in nuclear power plants. The project began with an experimental assessment of the conventional and new testing methods for measurement of response time of pressure transmitters. This was followed by developing a laboratory set up and performing initial tests to study the aging characteristics of representative transmitters of the type used in power plants. The project also included a search of the LER data base for pressure sensing system, problems and a review of the Regulatory Guide 1.118 and the industry standards on performance testing of pressure transmitters. The work reported herein was a feasibility study performed over a six-month period. As such, the results and conclusions presented herein are preliminary. 15 refs., 44 figs., 25 tabs.
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