Mitigation is defined as, “to make milder, less severe or less violent”.
When applied to electrical workplace safety, arc flash mitigation involves taking steps to minimize the level of hazard and/or the risk associated with an arc-flash event. The most effective arc flash safety programs look to incorporate “safety by design” through Engineering Controls.
Administrative controls and warnings are less effective because they rely on workers following proper procedures and safe work practices.
The following engineering controls, including examples, are covered in this paper:
1) Reduce arc flash energy to a level where permitted tasks can be performed
2) Locate the worker so that he/she is not subject to harm.
Complying with the safe work practices dictated by NFPA 70E and implementing arc flash mitigation strategies through engineering controls will enhance workplace safety for employees and reduce the financial risk for your company.