变压器和开关设备用未使用矿物绝缘油规范

[中文适用范围]： 涵盖用于变压器、开关设备和类似电气设备的未使用矿物绝缘油的规格和测试方法。含有和不含添加剂的油都在范围内。 [外文原描述]： Covers specifications and test methods for unused mineral insulating oils, intended for use in transformers, switchgear and similar electrical equipment. Oils with and without additives are within the scope.