Reducing Arc Flash Risk

Every year, dozens of workers are injured in arc- Create safe zones or boundaries for workers to
flash incidents from overloaded electricalprotect them from flash and shock.
equipment. These explosions happen instantly with- Provide employees with protective clothing and
pressure that can cause deafness or blindnessequipment that meets government standards.
and a fireball that can cause devastating injuries- Label equipment susceptible to arc flashes upon
and even death. The pressure is so intense fromfailure.
these flashes that injury to those around the blastOther precautions that can be taken include:
can result from flying, molten debris. The risk of- Limiting the fault current with devices that
arc flash incidents can be significantly decreasedimprove grounding and bring the current down to
by taking recommended safety precautions andno more than 5 amps, faults have nowhere to go
wearing protective gear.and extinguish. This also disables multi-phase faults.
According to an IEEE report, electric arc burns are- Setting protective devices for lower target
responsible for the majority of the injuries fromcontrols during maintenance periods.
electrical malfunctions. The arc's incredibly high- Avoiding the use of people altogether for very
temperatures, about four times that of thehigh-risk work. By using non-human operators, the
surface of the sun, can cause fatal burns withinrisk to people is almost completely eliminated.
five feet and major burns within just ten feet.However, some work requires people and not
It is the responsibility of both employers and theirrobots to be completed properly if it is a
employees to do their best to create a workplacehighly-complex operation.
for electrical workers that is not just safer butWhile many standards groups working together to
puts in place the best possible processes andkeep the workforce safe (OSHA, IEEE, NFPA) and
procedures that are fully understood, practicedhave made great strides in standardizing safety
and enforced for optimal results.procedure, it's still not possible to eliminate all arc
Employers are required to do several things toflash incidents. Employees in high-risk jobs must
help ensure their employees stay safe on the job.be vigilant about their surroundings and regularly
They must:monitor their equipment for faults. Through both
- Conduct an analysis of their workplaces toassessment and arc resistant technologies,
assess risks for arc flashes.worker safety continues to improve.
- Safety train employees.