Question
In household electricity supply, which of the following statements correctly describes the colour codes of the wires?
The correct answer is
The live wire is red, the neutral wire is black, and the earth wire is green
Electrical Wire Colour Codes Explained
Understanding the correct colour coding for electrical wires is essential for safety in household electrical systems. Different colours are designated for specific functions to prevent electrical accidents.
The widely recognized colour codes, particularly in older installations, are:
- Live Wire: Red
- Neutral Wire: Black
- Earth Wire: Green
Reviewing the options provided:
- Option 1: Live (black), Neutral (green), Earth (blue) - Incorrect.
- Option 2: Live (red), Neutral (black), Earth (green) - Correct.
- Option 3: Live (blue), Neutral (green), Earth (red) - Incorrect.
- Option 4: Live (green), Neutral (red), Earth (black) - Incorrect.
Option 2 accurately matches the standard colour conventions for live, neutral, and earth wires.
Was this answer helpful?
Important Questions from Electrical Wiring
The wire of 2 SWG is equivalent to diameter of-
In our home, the electrical appliances are connected_____________.
- An Earth Leakage Circuit Breaker (ELCB) is a crucial safety device in electrical systems. Which of the following scenarios does an ELCB specifically detect to prevent electric shock and potential fire hazards?
Which of the following metals is used to make electrical wires?
- A technician needs to connect a new appliance in a domestic circuit to ensure it receives full voltage and can be operated independently. What should the technician do?
Need Expert Advice?
