Qualification of Class Ie Transmitters

This paper covers the Demonstration Test Program for safety-related transmitters/ resistance temperature detectors as a result of changing system and regulatory requirements. The program includes the test plan, results related to heat transfer characteristics of transmitter, base-line-design, and problems associated with the implementation of the test program. In the latter sections of the paper, a grogram is identified to meet IEEE-323-1974. This program, which covers the environmental qualification of Westinghouse safety related equipment, deals with a realistic approach to aging of equipment located inside of the containment. Aging of equipment located outside of the containment is not done. Although this paper, at times, uses the term equipment in some of the discussions as related to the program presented, it should be understood that transmitters/resistance temperature detectors are included.