Transmission lines are part of the
system that gets the electricity from the power station to your home.
The lines that are on poles down your street and that are connected to
your house and other premises are referred to as the distribution
network and are rarely higher than 11,000 volts. The ones to your house
are probably no more than 440 volts. These lines come from a transformer
that has an input of 11,000 or 22,000 volts. Some large customers take
their electricity direct from the 22,000 network, and others take it at
11,000 volts. These high voltage distribution networks are supplied from
transformers that are connected to the transmission system that usually
operates at anything between 66,000 and 500,000 volts. These very high
voltage lines are usually on large steel towers that run between power
stations and large Transformer stations that distribute the power at
11,000 volts, and lower, to the end user.
