起重机的作业环境通常比较复杂,作业场所常遇到高温、高压、易燃、易爆、强磁等风险,并且本身的结构庞大且复杂、暴露,活动的零部件较多,常与作业人员直接接触。为确保起重机的用电安全,防止触电事故发生,所以起重机的接地检验非常重要。而起重机的接地检验往往受现场检验条件的限制而难以实施或难以得到较为准确的检验结果。目前通常 Crane operating environment is usually more complex, often encountered at workplaces high temperature, high pressure, flammable, explosive, strong magnetic and other risks, and its own huge and complex structure, exposed, active parts and more often with the operator directly contact. In order to ensure the crane’s electricity safety, to prevent electric shock accidents, so the crane ground test is very important. The crane ground test often subject to site inspection conditions and difficult to implement or difficult to get a more accurate test results. Currently usually