Analysis of nuclear power plant cable using DMA

Qualification of the polymer which should be used as main cable materials of nuclear system is very important for safety of nuclear. Especially, cables connected with operation of safe valves or pumps for LOCA (Loss of Coolant Accident) are highlighted more remarkably. We are taking information on thermal aging-decomposition of polymer from Wyle Lab. in USA, but are deficiency for activation energy of various cables using nuclear system. So we will perform qualification of polymer from inducing activation energy using DMA (Dynamic Mechanical Analyzer) equipment in KIMM (Korea Institute of Machinery and Materials)