Just after 5pm, the alarm was struck for a report of a building fire in the 900 block of Mitchell St. in the Folsom section of Ridley Twp. Tower and Ambulance 49 responded within minutes. 18-3 arrived on scene and reported an active fire on the electrical box on the exterior of the house. PECO was notified and put on priority response. A few minutes into the call, the service line to the house broke free from the house, and grounded out on nearby wires, causing the line to light up on fire. Luckily apparatus was placed with in a safe distance of the lines, and firefighters were being kept clear of the lines when they broke free. PECO arrived soon after, and secured the power to the lines and house. Company 49 went available from the scene shortly after.