Omex is the largest manufacturers of PVC insulated rounded cables in South India. PVC Cables insulated with eleven different PVC compounds representing fire-retardant, non-fire retardant, 60, 75 and 90/spl deg/C temperature ratings were evaluated. The specimens were subjected to accelerated thermal, radiation, and sequential radiation and thermal exposure simulating 15, 20, 30 and 40 yr in-service environments in Ontario Power Generation Nuclear Plants. samples wound on mandrels that had been subjected to the LOCA/MSLB steam test.