【判断题】
在发生人身触电事故时，可以不经许可，即行断开有关设备的电源，但事后应立即报告调度（或设备运行管理单位）和上级部门
A. 对
B. 错
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【判断题】
不应在只经断路器断开电源的设备上工作。应拉开隔离开关，手车开关应拉至检修位置，应使各方面有一个明显的断开点，若无法观察到停电设备的断开点，应有能够反映设备运行状态的电气和机械等指示
A. 对
B. 错
【判断题】
工作许可后，工作负责人、专责监护人应向工作班成员交待工作内容、人员分工、带电部位等危险点和现场安全措施，进行危险点告知，并履行确认手续后，工作班方可开始工作
A. 对
B. 错
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