overvoltages
/ˈoʊvərˌvoʊltɪdʒɪz/
noun
- Voltage levels that are higher than the normal or safe operating range for an electrical device or system.
- The factory shut down after overvoltages in the main power line tripped the circuit breakers.
- Electricians install surge protectors to guard against overvoltages from lightning strikes.
- The power surge caused overvoltages that damaged several computers in the office.