Quick Answer: What Is The Blue And Brown Electrical Wire?

Which is live blue or brown?

The blue wire, also referred to as the neutral wire, has the function of transferring electricity away from the appliance.

The brown wire, otherwise known as the live wire, transfers electricity to the appliance.

The combination of these wires is referred to as a circuit..

How do you connect blue and brown wires?

Inside the plug are three terminals:Earth : This is where the green and yellow wire goes – however, double insulated appliances do not have an earth wire.Live : The brown wire goes to the live terminal, which is on the right of the plug.Neutral : The blue wire connects to the neutral terminal on the left of the plug.More items…•Apr 19, 2011

What is blue wire used for?

Blue wires are used as travelers, usually on three- or four-way switches (controlling a light from multiple locations) or as switch legs for things such as fans or lights. Yellow wires are almost always used as switch legs for outlets, fans, or lights.

What is the blue wire called 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.

Which side of plug is neutral?

leftAs you can see, the neutral and hot wires are connected to the two vertical prongs at the top of the receptacle (neutral on the left, hot on the right) and the ground wire is connected to the round prong at the bottom of the receptacle.

What is the color code for 3 phase wiring?

yellowPhase 3 – Phase 3 wiring should be yellow. Neutral – Neutral wires should be grey. Ground – Ground wiring should be green, or green with a yellow stripe.

Which wire is positive blue or brown?

Brown is your hot wire so you want to connect that to your building’s black wire. The blue is negative or return, so that will go to white. Green with yellow stripe is the ground and will go to the building green.

Where does the blue and brown wire go in a plug?

In a plug, the blue neutral wire goes to the left, the brown live wire to the right and the green and yellow striped earth wire to the top. The fuse fits next to the live wire.

What do I connect the blue wire to?

The blue wire from the ceiling fan gets connected to the second live wire from the ceiling. This second wire can vary in color but is most commonly red or black. This connection allows you to power your lights from the second switch.

How can you tell if a wire is positive or negative?

The solid/dashed lines on wires like the ones pictured in your question are used to indicate polarity e.g. for the “wall wart” power supplies. Usually* the wire with the white stripe or the dashed lines carries the “positive” (+) end, while the other, unmarked wire carries the “negative” (-) end.

What is the blue wire?

The blue wire is known as the neutral wire and its job is to take electricity away from an appliance. … This means that, if the live or neutral wires develop a fault causing any exposed metal to become live, there is a risk of electrocution as electricity can attempt to find its way to earth via the human body.

What color wires go to XYZ?

I normally use Green for ground, White for Neutral, Black for X, Red for Y (and orange for Z on an L21-30). On the Cal Standard plugs and connectors the X is colored Red and Y is colored Black.

Is blue wire positive or negative?

IEC DC power circuit wiring color codesFunctionlabelColorNegative (of a negative earthed) circuitMbluePositive (of a positive earthed) circuitMblueNegative (of a positive earthed) circuitL-grey3-wire earthed DC Power System9 more rows

What happens if you wire a plug wrong?

But here’s the catch: If you connect the circuit wires to the wrong terminals on an outlet, the outlet will still work but the polarity will be backward. When this happens, a lamp, for example, will have its bulb socket sleeve energized rather than the little tab inside the socket.

Does black wire go to blue or brown?

The neutral black has been replaced by blue. The line red and has been replaced by brown. The earth is still identified by green and yellow.