Electrical Arcs

If you see electricity jumping from one connection to another, you have an arcing emergency that requires immediate attention. When a strong and luminous current jump across the gap between electrodes, arcing occurs. These arcs present an extremely high fire risk, with temperatures reaching 35,000°F. Electrical arcs can cause injuries such as cardiac arrest and nerve damage, in addition to skin burns. They can also emit poisonous gasses that can harm the lungs.

Arc fault circuit interrupters (AFCIs) can protect against arcing by shutting off electrical power in as little as 1/40th of a second if they detect danger. The modern electrical code now requires AFCIs in all 120-volt single-phase 15- and 20-ampere branch circuits in residential properties. If you are unsure whether your home is properly equipped, you should consult an electrician.