Tonight Engine company 12 was dispatched for a transformer fire on Lisburn road. Engine 3-12(warren) could not find the transformer that we were originally dispatched for. Once we were on location headquarters notified Chief 2-12 about a tractor trailer in wires on 581 East bound. After navigating through miles of traffic Engine 3-12 found the live power lines which crossed all four lanes of traffic. Chief 2-12 requested team 800(fire police task force) due to many traffic lights out throughout the township and needed traffic shut down East and Westbound on 581. Members dealt with cars running out of fuel, dead batteries, and a woman going into labor. Once PPL was one the scene, power was secured and the wires were removed. Total incident time exceeded 6 hours. While Engine 3-12 operated the belt way incident, remaining crews handled an AFA and a report of fire from the rood at the Brew house grille.