Electrical Arc Protection

The National Fire Protection Agency (NFPA) 70e standard requires the calculation of a “flash protection boundary” within which a person could receive a second-degree burn if an electrical arc flash were to occur. This imaginary boundary, which surrounds the potential arc point, specifies what level of personal protective clothing and equipment must be used by qualified workers who enter within that boundary. This standard also defines incident energy as “the amount of energy impressed on a surface, a certain distance from the source, generated during an electrical arc event.” That surface could be a person... Read More