Evaluation of the Environmental Qualification for Non-metallic Parts

Environmental Qualification has been almost developed except those of Non-M aterial Sub-com ponents for valves and pumps though the time has only passed about 10years since EQ test launch of Korea. However EQ test has been performed by a few of engineers under the conditions that experience of EQ test is insufficient and EQ system is not developed completely. In recent years, Strengthen Nuclear Safety Regulation is being done Strictly Nuclear safety components Verification Procedure for Non-M aterial Sub-com ponents, but the reports contain only performance test results, not E nv iro nm en ta l test methods relating to real Aging Degradation. In this Study, there were developed to performance systematically research to acquire EQ technology for five specim ens of the Non-M aterial Sub-com ponents in the Nuclear Power Plant.