All power is off - even the emergency power 没电了-紧急备用电源也没电了
2.
Emergency telephone service 紧急备用电话
3.
Emergency power supply eps 紧急备用电源
4.
Ups system needs to be installed to provide emergency power for the instrumentation and trip systems ; an alternative power supply connection is needed for emergency lighting 安装ups系统来为仪表和跳车系统提供紧急备用动力；紧急照明需要一个单独的动力供应线路。
5.
A ups system needs to be installed to provide emergency power for the instrumentation and trip systems ; an alternative power supply connection is needed for emergency lighting 安装ups系统来为仪表和跳车系统提供紧急备用动力；紧急照明需要一个单独的动力供应线路。
6.
Electric ac power supplied by the electric company for the broadcasting equipment both at ibc and venues . in case of trouble it is automatically switched to the power from the generators or ups 场馆和ibc设备使用的交流电，如果出现故障，会自动切换到自备发电机或紧急备用电源。
