Apply to indoor 312 kv three-phase ac 50 (60) hz power system in various models and high-voltage switchgear supporting the use, can be as high voltage apparatus equipment maintenance with grounding.
适用于户内312kv三相交流50（60）hz的电力系统内和各型号高压开关柜配套使用，亦可作为高压电器设备检修时接地用。
Apply to indoor 312 kv three-phase ac 50 (60) hz power system in various models and high-voltage switchgear supporting the use, can be as high voltage apparatus equipment maintenance with grounding.
适用于户内312kv三相交流50（60）hz的电力系统内和各型号高压开关柜配套使用，亦可作为高压电器设备检修时接地用。
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