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Difference between Dead wire and Live wire

dead wire—(also: dead line) a cable through which no electricity passes:

  • A young carpet layer was installing carpet when he grabbed what he thought was a dead wire.

live wire

1. (also: live line) a wire carrying electric current:

  • If you were to touch the live wire a current would flow through your body to the ground.

2. a vivacious and energetic person:

  • He is a live wire and a free spirit. It is easy to see why people are so keen to flock around him and worship at his feet.