power surge

A power surge is a fast yet short duration of electrical transients in current, voltage or transferred energy that happens in an electrical circuit.Typically a power surge is caused by an oversupply in voltage either from the power company or from various external sources, although an oversupply of current is also possible; either way it affects the overall power moving through the electrical lines, hence the term power surge.

Barry lost most of his appliances in the power surge last night