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UK Mains Electricity - How to wire a 3-pin Plug.
The three wires are contained in a plastic outer covering (called the flex)
which acts as insulation.
The outer covering is held inside the
plug by a flex grip.
Each wire has its own coloured insulation,
to show if it is Live, Neutral or Earth (see previous page).
The wire inside is made of copper,
which is an excellent conductor.
The copper wire is held inside the
brass pin of the plug by a small
screw.
The Live wire is always connected to the Live pin of the plug by a fuse.
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