Understanding Arc Faults and AFCI Protection
The term arc fault refers to a situation in which loose or corroded wiring connections create an intermittent contact that causes electrical current to spark, or arc, between metal contact points. When you hear a light switch or outlet buzzing or hissing, you are hearing arcing as it happens. This arcing translates to heat, which can break down the insulation surrounding individual conducting wires, providing the trigger for electrical fires. Hearing a switch buzz does not mean the fire is necessarily imminent, but it does mean there is a potential danger that should be addressed.
Original Article Source Credits: The Spruce , https://www.thespruce.com/
Article Written By: Timothy Thiele
Original Article Posted on: 09/17/20
Link to Original Article: https://www.thespruce.com/what-is-an-arc-fault-1152477