介绍了攀钢密地选矿厂阶磨阶选改造中的高低压供配电设计及改造，提出了避免电源交叉及分开设立低压室的措施。
This paper introduced the design and reform of high and low electric distribution in stage grinding and dressing of Pangang Midi Concentrator.
建筑供配电设备、高低压开关柜、变压器、断路器、继电器、各种开关等；
Variable distribution equipment, high and low power switchgear, transformer, breaker, relay, switch;
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