Energy consumption grading for industrial electroheat installations—Part 34:Mains frequency induction channel furnaces
全国工业电热设备标准化技术委员会(SAC/TC 121)
GB/T 30839的本部分规定了工频有心感应炉的能耗等级指标和单位电耗测定方法。
本部分适用于使用工频电源（50 Hz或60 Hz）供电的有心感应熔铜/铝/锌炉。
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