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P5 - Electricity in the home - Coggle Diagram
P5 - Electricity in the home
Plugs
outer insulation
All three wires in the cable are bundled together and there is extra plastic insulation wrapped round them all for safety
cable grip
This holds the cable tightly in place so that wires do not become loose
live wire
Copper wire coated with brown plastic along which the current enters the device
fuse
A glass or ceramic canister containing a thin wire that melts if the current gets too high
A fuse provides a built in fail safe to the electrical circuit for a device. contains a thin wire that will melt if the current gets too high
neutral wire
Copper wire coated with blue plastic that also connects to the cable in the wall and completes the circuit
earth wire
Copper wire coated in striped plastic that provides a path for current to flow from the case of the device to the ground if there is a fault
Earthing
Without the earth wire, if a fault occurs and the live wire becomes loose, there is a danger that it will touch the case. The next person who uses the appliance could get electrocuted
The earth wire is therefore connected to the case and is attached to a metal plate or water pipe underground. As the wire is made of copper, the earth wire provides a low path to the ground
Safety
Mains
Coulombs measures charge
Equations
Series