A live wire is a wire carrying an electric current
If something goes wrong inside and the live wire gets accidentally connected to some metal part, the circuit breaker will blow, protectingthe user from an unpleasant sensation or even electrocution.
To transmit power with single-phase alternating current, we need two wires - live wire and neutral.
A live wire is a wire carrying an electric current
live, wire, wire
Examples of 'live wire' in a sentence
live wire
When we seen you in the Starlight Club you were a real live wire.
Laurie Graham MR STARLIGHT (2004)
He might even have thought marriage would draw her out: particularly marriage to a live wire like Giuliano.