Air resists current. This is why the conductors (wires) in a power transmission system are separated by a distance. Separating them offer air in in between to act as a resistance between the two. However, sometimes the resistance of air breaks down and becomes less than the resistance needed to maintain the two voltages out of contact. When the two voltages do come in contact, it outcomes in an arc flash, which manifests itself in the type of an explosion. The explosion outcomes in a lot of heat, can cause fire and injure any in the surroundings. Apart from the explosion, the arc flash also outcomes within the destruction arising from the intense radian heat produced by the flash arc.

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