Conrolling the Quality of Replacem Parts in Nuclear Station, Class 1E Equipment

Nuclear station owners have traditionally purchased replacement parts for Class 1E equipnent from the original supplier of the equipmnent. By this method, part and equipment quality could be maintained. In recent years, however, this traditional source of parts has continuously declined as an increasing number of original equipment suppliers stop producing Class 1E equipment or no longer stock parts for older equipnent.