Environmental qualification of Class 1E motors for nuclear out-of-containment use

Tests were performed to assure that the Class 1E motors supplied by the Westinghouse Large Motor Division, for use outside the containment, meet the requirements for nuclear service according to the guidelines of IEEE Standards 323-1974 and 344-1975. The equipment was tested for conditions encountered both during normal service, and during and following a design basis accident. A combination of test and analysis qualification methods was used. Aging has been taken into consideration by the above-mentioned testing and by keeping the equipment in as new condition by a thorough inservice maintenance program