Foil balloon revealed as cause of massive power outage in Perth

A foil balloon that hit an overhead power line knocked out electricity for 11,450 homes in North Perth and surrounding suburbs on Saturday.

The power went out around 11 a.m. and it took the Western Power crew three hours to fully restore power to all affected customers.

Traffic lights in the area were also affected and motorists were advised to slow down and give way to the right.

It’s not the first time foil balloons, which can conduct electricity, have short-circuited the system and interrupted the power supply.