以往经常用自备柴油发电机组、蓄电池、干电池和镍镉电池应急灯作为应急备用电源。
Traditionally, diesel oil-based generators, storage battery, dry battery and emergency lighting equipped Ni-Cd battery are always used as standby emergency power supply.
对常用的应急电源装置：自备柴油发电机组、不间断电源装置UPS和应急电源装置EPS容量选择的方法、依据进行了论述。
It elaborates over the method and the reasons to choose the regular emergency power facilities-self-provided diesel generator unit, uninterrupted power source (UPS) and emergency power source (EPS).
当外部电源故障，工厂自备包括柴油发电机，电池等供电设施。
But, if the power lines fail, the plants have redundant on-site power sources, including backup diesel generators and batteries.
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