power cut
英 [ˈpaʊə kʌt]   美 [ˈpaʊər kʌt]  
n.
供电中断;停电(的一段时间)

例句

Diana, what happens if there's a power cut? 

戴安娜如果停电了怎么办

There are candles strategically placed — just in case we have another power cut.

我们把蜡烛放在合适的地方，以防再停电

Power supplies have been cut off in certain towns. 

一些城镇的供电已经中断。