Fallen Powerlines Thankfully, it’s unusual for transmission lines to come down. But on rare occasions a severe storm or cyclone can cause lines to fall to the ground. Learn more Electrical Fires Fire burning beneath or near transmission lines or substations can endanger people, animals and property, and has the potential to interrupt electricity supply to customers. Learn more Flood Damage Floods and high voltage electricity can be dangerous, so it’s important to act safely around any transmission lines or substations which are flooded. Learn more