power failure
noun1
Business, Electrical engineering, Electricity, Electromagnetism, Energy, Engineering, Natural sciences, Physical sciences, Physics An unscheduled or accidental break in the supply of electricity.
- Sadly, some modern rolling stock engineers must hang their heads in shame after the recent power failures on Thameslink, where trains had to be reset by technicians after the supply frequency wandered off the 50hz.2019 October, Ian Walmsley, “Cleaning up”, in Modern Railways, page 43: