What is the color code for electric wire?
The National Electrical Code (NEC) says that white or gray must be used for neutral conductors and that bare copper or green wires must be used as ground wires. Beyond that are general, industry-accepted rules about wire color that indicate their purpose.
What are the colors for wiring?
The color code for AC power wiring is similar to the code used in the United States:
- Phase 1 – Red.
- Phase 2 – Black.
- Phase 3 – Blue.
- Neutral – White.
- Ground – Green with Yellow Stripe.
Is positive red or blue?
There are also positive and negative cables in the jumper cable set. The red one is positive (+), the black one is negative (-). Never connect the red cable to the negative battery terminal or a vehicle with a dead battery.
Is Blue positive or negative?
Blue is Negative, and White is Positive. There is nothing like positive or negative in a wire unless and untill it is connected to a power source. A blue wire may be connected to negative terminal of a power source and black may be connected to positive.
Does blue wire connect to black wire?
Note that the blue wire is connected to the black fan wire so that they can both be operated by the same switch. Connect the ceiling fan blue wire to both the black fan wire and the black wire from the ceiling. This connection allows both the ceiling fan and light kit to be powered by a single light switch.
What is the blue wire in a light fixture?
Blue wire is for the light, if light is included with the fan. White wire is neutral. Green wire is for the ground. Red wire is sometimes included and acts as a conductor to carry power to the light kit.
What is the blue wire in a plug?
The plug contains three wires – the live, neutral and earth wires. In a plug, the live wire (brown) and the neutral wire (blue) are the two wires that form the complete circuit with a household appliance. The earth wire (green and yellow) does not normally form part of the circuit and is included as a safety wire.
Where does the blue wire go in a plug?
What happens if you connect live wire to neutral?
It is the condition of the short circuit if the live wire directly comes to the neutral wire. If Normal wire burns, the circuit will break and everything will become normal except for that wire.
What happens if you swap active and neutral?
So when you switch off or the breaker goes the active wire is disconnected from the apparatus. Swapping the wires so the neutral is connected to the switch /breaker leaves the active wire connected when you switch off or there is a fault, either of which could be seriously, even fatally, dangerous.