Safety Tips It's important to be mindful of electrical safety to keep you, your family and work colleagues safe. The resources below explain some of the simple things you can do to make using electricity in your home as safe as possible. Always use a licensed electrical contractor (electrician). Learn more Transmission Lines Fire and flood safety around transmission towers and lines. Powerlink's high voltage network extends 1,700km from north of Cairns to New South Wales, comprising of 15,337 circuit kilometres of transmission lines. Learn more Retrieving Property We’ll retrieve any property that ends up on substation grounds for you – simply call us on Freecall 1800 353 031 (24 hours). Learn more