手持电动工具是转动电气设备,通常振动较大,容易发生碰坏绝缘、擦伤电线、火线碰壳之类事故。所以,接零或接地的方法必须正确无误。否则,不但起不到保安作用,反而会造成隐患。某机电安装公司的一名电工就因使用接法不正确的手电钻而导致触电死亡的。该手电钻虽按规定采取了接零 Hand-held power tools are rotating electrical equipment, usually large vibration, prone to damage the insulation, abrasion wire, fire line touch the shell of the accident. Therefore, the method of connecting zero or ground must be correct. Otherwise, not only will it fail to function as a security guard, it will cause potential problems. An electrician at an electromechanical installation company died of an electric shock using an incorrect hand drill. Although the electric drill to take the provisions of zero