May be used for branch, feeder and service power distribution in commercial, industrial, institutional and multi residential construction suitable for installation in places of assembly and theaters flame resistant, heat resistant PVC insulation with flame, oil and gasoline resistant nylon jacket rated as types THHN and THWN conductors and ground wire cabled and wrapped with a polyester tape 12/2 x 25 feet 0. 485 inch nominal outside diameter 4. 5 inch inside bend diameter.