论文部分内容阅读
电力是地下矿山井下生产的基本能源动力。供电线路和用电设备在井下几乎无所不在,由于井下空间相对狭窄、封闭,人员与电路、用电器接触几率大,导致触电事故时有发生。当供电或传输线路过载时,将导致线路过热并引燃线路包裹层,是引发电力火灾事故的常见原因。鉴于此,加强井下用电安全工作十分必要。事故常见类型和事故机理井下用电事故大致上可分为线路过载(过流)、漏电、短路和触电,其中触电事故又分为直接触电和间接
Electricity is the basic energy source for underground mine production. Power lines and electrical equipment in the mine almost ubiquitous, due to the relatively narrow downhole space, closed, personnel and the circuit, electrical contact with a large probability, resulting in electric shock accidents have occurred. When the power supply or transmission line is overloaded, it causes overheating of the line and ignition of the line envelope, which is a common cause of power fire accidents. In view of this, it is necessary to strengthen underground power safety. Common types of accidents and accident mechanism Underground power accidents can be roughly divided into line overload (overcurrent), leakage, short circuit and electric shock, which is divided into direct electric shock and indirect electric shock