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kuang jing qian fu ji gong dian de an quan ji shu
Pages: 3-9
Year: Issue:  1
Journal: Safety in Coal Mines

Keyword:  安全技术采区矿井低压电网用电设备工作面单机功率电动机总功率漏电保护;
Abstract: <正> 一、煤矿井下采区低压电网升压等级的选择煤矿井下采区低压电网应选用多高的电压,首先决定于采区工作面用电设备的总功率,容量最大的电动机的单机功率和供电距
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