Electrical Supply ~ in the UK electricity is generated mainly from
gas, coal, nuclear and hydro-electricity power plants. Alternative
energy generation such as wind and solar power are also viable
and considered in Part 16 of the Building Services Handbook.
Distribution is through regional companies. The electrical supply to
a domestic installation is usually 230 volt single phase and is
designed with the following safety objectives:-1. Proper circuit protection to earth to avoid shocks to occupant.- Prevention of current leakage.
- Prevention of outbreak of fire.
Electrical Supply---Basic Requirements