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In household wiring, what is the colour of 'earth wire'?

In household wiring, what is the colour of 'earth wire'? Correct Answer Green

The correct answer is Green.

  • Green wire stands for grounding/ earthing in the electric circuit.
  • Earthing is used to protect circuits or devices from an electric shock. It does this by providing a path (a protective conductor) for a fault current to flow to earth.
  • Green wires are chiefly used for socket purposes. Example AC, geyser, TV, microwave, etc.
  • Normally, switches have only 2 wires i.e. neutral and phase.

Important Points

  • Red wire signifies the phase (live wire) in an electric circuit.
    • Sometimes used in switch legs and interconnection between smoke detectors that are hard-wired into the power system.
  • The black wire is used for power in all circuits.
    • It carries electricity from the breaker into the source.
  • White or Gray wire is neutral wire and takes unused electricity (current) which is sent back to the breakers or the main breaker panel.

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