This Standard describes some of the requirements for film dielectric capacitors oil filled or impregnated, or both, made with two metallized paper electrode or one metallized paper electrodes and one aluminum foil electrode. The capacitors are sealed in metal cases. They are intended for use in lighting ballasts, ferroresonant trarisformer power supplies. some power factor correction, with motors, and other general purpose applications. The capacitors are rated for service in 50 Hz to 60 Hz circuits with case temperature range shown in paragraph 3.4.