Überspannung
excess voltage
external overvoltage
insulation co-ordination
insulation coordination
internal overvoltage
over tension
over voltage
over-voltage
overpotential
overvoitage
overvoltage in a system
overvoltage in the system
overvoltage
power surge
supertension
surge voltage
surge voltages
surge
temporary overvoltage
transient overvoltage
transient voltage
voltage surge