Effect of gamma irradiation on stabilized PVC insulators

ABSTRACT

This study concentrates on following up the deterioration of the properties of PVC insulators as a result of exposure to high-energy ionizing radiation. The effect of gamma-rays in the range of doses up to 600 kGy on mechanical and electrical properties, swelling behavior and solubility of PVC insulator have been studied. As the PVC insulator may come in contact with water during practical conditions of application, its swelling behavior after irradiation different atmospheres is thoroughly investigated. The measurements given in this study were of practical importance and can be used as a guide to predict the deterioration in performance of PVC insulators in radiation environments