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变压器送电时，尤其是大容量变压器，应在听到空载运行的声响 3min 后，才能进行下一步操作。
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架空线路故障，当继电保护动作后，自动重合闸装置使断路器自动合闸。
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高低压同杆架设 , 在低压线路工作时 , 工作人员与最上层高压带电导线的垂直距离不得小于 0.7m。
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测量直流电流时 , 电流表应与负载串联在电路中 , 并注意仪表的极性和量程。
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人体触电时 , 大脑易损期最为敏感 , 也最容易受到伤害而发生昏迷 , 而导致血液循环中止死亡。
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变压器型号中横短线后面的数字表示变压器的额定容量 , 其单位是 kVA。
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检修人员未看到工作地点悬挂接地线 , 工作许可人 ( 值班员 ) 也未以手触试停电设备、 检修人员应进行质问并有权拒绝工作。
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干式变压器所在环境的相对湿度应不大于 50%
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高压验电器每六个月要进行一次预防性实验
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