Arc flash in a control panel can occur when there is ample voltage in an electrical system. Resulting form an accelerated fault to ground, it produces an electric arc.
With 5-10 arc flash incidents occurring per day, arc flash is a leading cause of death and burn accidents for maintenance staff when servicing electrical control panels in North America today. Onsite damages caused by an arc flash incident include: OSHA citations or fines, down time, loss of revenue and equipment damage. In worst case scenarios, arc flash may result in long term disability or even death thereby having a significant impact on the liability of the municipality.
All of these arc flash events usually occur in less than 0.2 seconds, and can create: