Domestic uses and safety common mistakes

Common mistakes

• Mains electricity common mistake 1

  Giving a vague answer instead of directly addressing: Explain that the live wire carries the alternating potential difference from the supply..

  Fix itAnswer by clearly explaining how to explain that the live wire carries the alternating potential difference from the supply..

• Mains electricity common mistake 1

  Giving a vague answer instead of directly addressing: Explain that the neutral wire completes the circuit..

  Fix itAnswer by clearly explaining how to explain that the neutral wire completes the circuit..

• Mains electricity common mistake 1

  Giving a vague answer instead of directly addressing: Explain that the earth wire is a safety wire that stops an appliance becoming live..

  Fix itAnswer by clearly explaining how to explain that the earth wire is a safety wire that stops an appliance becoming live..

• Mains electricity common mistake 1

  Giving a vague answer instead of directly addressing: State that the potential difference between the live wire and earth is about 230 V..

  Fix itAnswer by clearly explaining how to state that the potential difference between the live wire and earth is about 230 V..

• Mains electricity common mistake 1

  Giving a vague answer instead of directly addressing: State that the neutral wire is at or close to earth potential, about 0 V..

  Fix itAnswer by clearly explaining how to state that the neutral wire is at or close to earth potential, about 0 V..

• Mains electricity common mistake 1

  Giving a vague answer instead of directly addressing: State that the earth wire is at 0 V and carries current only if there is a fault..

  Fix itAnswer by clearly explaining how to state that the earth wire is at 0 V and carries current only if there is a fault..

• Mains electricity common mistake 1

  Giving a vague answer instead of directly addressing: Explain why a live wire may be dangerous even when a switch in the mains circuit is open..

  Fix itAnswer by clearly explaining how to explain why a live wire may be dangerous even when a switch in the mains circuit is open..

• Mains electricity common mistake 1

  Giving a vague answer instead of directly addressing: Explain the danger of creating any connection between the live wire and earth..

  Fix itAnswer by clearly explaining how to explain the danger of creating any connection between the live wire and earth..

• Mains electricity common mistake 1

  Giving a vague answer instead of directly addressing: Apply WS 1.5 by recognising safety implications of mains electricity..

  Fix itAnswer by clearly explaining how to apply WS 1.5 by recognising safety implications of mains electricity..