求翻译：为防止电气设备的短路故障、雷电或者可燃气体浓度达到爆炸极限时，由于电火花而引起火灾或爆炸，及发生人身触电事故的发生，需采取以下措施：是什么意思？

To prevent a short circuit of the electrical equipment failure, lightning, or the concentration of combustible gas explosion limit is reached, the electric spark caused a fire or explosion, and personal electric shock accident occurs, you need to take the following measures:

In order to prevent a short circuit fault electrical equipment, lightning or fuel-gas concentrations up to explosive limits, because when an electrical spark and cause a fire or explosion, and an injury occurs, an electrical shock incidents required to take the following measures:

To prevent short circuit fault of electric equipment, lightning or explosion of combustible gas concentration reached when fire or explosion due to electrical discharge, and personal electric shock accident happens, should take the following measures: