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10秒装修报价 装修要花多少钱?获得精准报价,省钱30%
168211
元
材料费:77201元
人工费:86544元
设计费:1760元
质检费:2706元
在不能负重的顶棚、天花板上工作时,梁与梁之间应用厚长板条搭桥,必要时应系好安全带后方可进行工作,工作地点应有足够照明。在墙壁上用钢钎打孔工作,应戴防护眼镜,扶钎手应戴手套。新安装的电动机,在试车前不得安装皮带。确认电动机转向正确后,方可停电安装皮带。皮带运行中应不跑偏、不打滑、不磨边,皮带周围应有安全防护设施。电动机外壳应该可靠接地。严禁对运行中的电动机进行维修工作。严禁使用无风扇护罩、无靠背轮护罩及无轴端盖的电动机。田间、场院使用的电动机应装设剩余电流动作保护器。严禁带电移动电动机。停电移动时,应防止电源线被拉断。
题主好,原理是这样的哦,QBZ-80是矿用隔爆型真空电磁起动器,适用于具有爆炸性气体和煤尘爆炸性危险的煤矿井下,具有爆炸性危险的煤矿井下,在交流50Hz,额定电压为1140/660、380V的供电系统中,作为远距离控制的三相鼠笼型异步电动机的起动、停止或反转控制之用的哦,特别适用于频繁操作,重负荷的煤矿机械设备中。直接控制电动机的远距离起动、停止和换向;具有漏电闭锁、过载、短距保护功能;.具有失压保护,能防止电动机在线路中已消失的电压恢复时的自动起动;.控制回路采用36V低电压,能保证工作者的安全;具有供局部照明及信号装置的电源作用哦。还是很重要的,期望可以帮助到你!