When electricity is first generated at a power station it  goes through a step-up __________________ which takes its voltage to _____________V.  The higher voltage means a much lower current. This allows the electricity to travel large distances without loosing too much of its energy as waste heat. 

As the electricity enters a large town like Blackpool it first comes to a main electricity distribution point usually on the ______________ of the town.

The electricity now goes through a number of step down transformers.  Eventually when it gets to out home it is only at ________V.

 Large _______________ made of ceramic material (like cups) keep the high voltage wires well away from anything we can touch.

The local sub stations are all well signed showing us the danger inside. The also have a roof but this is a problems due to the large amount of ________ transformers make.

Ventilation grills are essential to keep the transformer ______________