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gao pin ni bian shi xie jing ren che an quan xin hao
Pages: 22-23
Year: Issue:  1
Journal: Safety in Coal Mines

Keyword:  信号装置斜井人车安全信号极性控制安全运行长期使用逆变式原理安全火花工作电流;
Abstract: <正> 自我局富力矿利用极性控制原理试制成斜井人车安全信号装置以来,我局各矿都先后予以推广。这种安全信号装置对于避免乘车人员随意中途打点,保证人车安全运行方面收到了良好效果。但在长期使用过程中,
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