Portable electrical apparatus operating at a voltage exceeding extra low voltage shall be protected against leakage to earth of current liable to cause electrical hazard. 在超逾特低压的电压下操作的轻便型仪器,须获保护以免可能造成电力危险的电流对地漏电。
The electric sprayer unit shall be protected against leakage to earth of current liable to cause electrical hazard. 电喷器要装有防漏电装置如使用时有触电危险。
Where necessary as a precaution against electrical hazard, adequate lighting shall be provided in all parts of the premises where apparatus which, in normal use, requires operation or attention by any person is installed. 凡有需要提供避免力危的防措施,所有在正常使用情下由人操作或照管的器的所有部分,均有足的照明。
Residual current device ( RCD ) is an important kind of low voltage electrical apparatus, which is used in low voltage distribution power grid to protect from electrical fire or electrical shock hazard. 剩余电流保护技术是一种重要的安全保护技术,应用于低压电网中可以防止人身触电、电气火灾和电气设备损坏事故。
Tentative Analysis about the Cause of Electrical Fire Hazard in Flammable and Explosive Zones in Chemical Industry Fire Risk Assessment and Countermeasure of Combustible and Explosive Corporation 浅析化工类易燃、易爆场所电气火灾的成因与对策易燃易爆企业火灾危险性评价及对策