Below is shown a basic ring circuit for a UK House .    The circuit is provided with a 32 A fuse /MCB in the consumer unit.    There is generally a separate ring circuit for upstairs, downstairs and the kitchen.    The circuit shown includes two spurs one from a junction box and one from a plug. socket.

Below is shown a basic lighting circuit for a UK house.    The circuit is provided with a 5 A fuse/MCB at the consumer unit.    Generally one lighting circuit is require for each floor of a typical house.

Below is shown single appliance circuit for a UK house.    The circuit is provided with a 30 A fuse/MCB at the consumer unit for a cooker of less than 16kW rating.     For a cooker rated above 16kW a 45A fuse of 50AMCB is required. Generally A single appliance unit is required for an electric cooker. .