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Frayed cables can expose wiring.
Long trailing cables do not pose any risk of tripping.
Damaged plugs can cause wiring to become exposed.
Water around sockets can conduct electricity, posing a danger.
Pushing metal objects into sockets is a safe practice.
Overloading sockets causes too low a current and is generally safe.
Long coiled cables connected to an electric heater can start a fire.
A three-pin plug has a built-in safety device called a fuse.
The fuse is connected to the neutral wire in the plug.
The earth wire in a plug is green and yellow striped.
A fuse is used to protect the circuit by breaking it if a fault develops.
The current in a circuit can flow through a fuse or trip switch before reaching the appliance.
If there is a sudden surge in current, the fuse wire will not melt.
Trip switches can be easily reset after a fault in the circuit is corrected.
Metal-cased appliances do not need an earth wire.