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What is the purpose of a 3 pin plug?

The 3-pin plugs are designed so that electricity can be supplied to electrical appliances safely. Each wire has its own specified color, as shown above and each pin must be correctly connected to the three wires in the electrical cable.

Why do UK have 3 pin plugs?

Prong Design: Like standard U.S. grounded plugs, the U.K. wall plug has three prongs. The U.K. plug is designed so that the grounding prong is slightly longer than the prongs responsible for transferring current.

What are the three pins of a three pin plug?

The Three Pin Plug

  • The LIVE wire is BROWN. This is connected to a fuse on the live pin.
  • The NEUTRAL wire is BLUE. This is the route the electric current takes when it exits an appliance; it is for this reason the neutral wire has a voltage close to zero.
  • The EARTH wire is GREEN & YELLOW. and connected to the earth pin.

What do the different Colours represent in a 3 pin plug?

What do the different colours represent in a 3 pin plug? The wires. 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.

How does a 3-prong plug work?

When a 3-prong plug is plugged into the receptacle, the grounding wire is connected to the prong and provides a continuous grounding path from the appliance back to the breaker box. This grounding path serves as a primary safety means if there is a short circuit or other damage to the electrical circuit or appliance.

Who invented the 3 pin plug?

Harvey Hubbell
Since its invention back in 1904 by Harvey Hubbell the plug has not really undergone a change in form, its purpose was for lighting in the home. The 3 prong plug, invented by Phillip Labre in 1926, brought about new uses; appliances once available only in public areas became available to buy for the home.

When did 3 pin plugs come out?

The first British standard for domestic three-pin plugs was BS 317 Hand-Shield and Side Entry Pattern Three-Pin Wall Plugs and Sockets (Two Pin and Earth Type) published in 1928.

What is a 3-pin plug made out of?

The cable between the device and the three-pin plug contains three copper wires that are coated with plastic. Each part of the plug has a function….Plugs.

Features of a plug Function
Live wire Copper wire coated with brown plastic along which the current enters the device

What are the names of the three wires 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.

When did UK wiring Colours change?

March 2006
In March 2006, the United Kingdom government made an amendment to British Standard BS 7671 (Requirements for Electrical Installations), as a result, the change of colour coding for electric cables was considered one of the most significant changes for the electrical industry in modern history.

Is black neutral color?

Examples of neutral colors include beige, taupe, gray, cream, brown, black, and white. While neutral colors are not on the color wheel, they complement primary and secondary colors. Neutral colors can be complex in tone, as mixing different colors creates unique shades.

How is a 3 pin plug used in the UK?

Most electrical appliances are connected to the UK Mains using cable and a 3-pin plug. The 3-pin plug can then be plugged into the socket and make a connection with the Mains Supply.

How much AC does a 3 pin plug have?

3-Pin Plug. The UK mains supply is about 230 volts AC (RMS). (It used to be 240V but it has been brought down in the first stage of the transition to making it 220V like the rest of Europe).

How are the wires in a plug coded?

The inner wires are colour coded and have different functions: An earthed conductor cannot become live. 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.

What kind of wire is in a CCEA plug?

Copper wire coated with brown plastic along which the current enters the device. A glass or ceramic canister containing a thin wire that melts if the current gets too high.