Arc Flash – not just an Electrocution Hazard – Part 1, 2 and 3

Electrical Review
Mike Frain & Jim Phillips
Published: August 2009

An arc flash, is usually caused by inadvertent contact between an energised conductor such as a bus bar or wire with another conductor or an earthed surface. When this occurs, the resulting short circuit current can melt the
conductors and produce strong magnetic fields that blow the conducting objects apart.