Electrical equipment is required to be field labeled by the NEC (NFPA 70) and OSHA. This requirement is meant to inform personnel working on energized equipment about ...

The Occupational Safety and Health Administration (OSHA) has always maintained that electrical work should only take place on de-energized equipment. This idealistic goal hasn't always been practical ...

Standards and regulations may change, but the danger associated with arc flash hazards remains. Analyzing potential incident energy correctly and understanding what personal protection equipment is ...

ONJune 11, 1999, an electrician was troubleshooting the emergency power system. After testing the transfer panel, he moved to the emergency breaker compartment (480 volts, 200 amps), removed the cover ...

The Occupational Safety and Health Act of December 29, 1970, states “An Act: To assure safe and healthful working conditions for working men and women …” Section 5 of the Act titled Duties goes on to ...

When electrical equipment must be maintained or repaired while energized, an arc flash hazard may be present. Affected workers need to know what steps should be taken to stay safe. Arc flash warning ...

Arc flashes present a serious hazard involving electrical equipment that is more common than many would believe. Due to OSHA’s reporting requirements for arc ...

Every day, an estimated five to 10 arc flash incidents occur and more than 2,000 people are hospitalized each year, according to The National Fire Protection Association (NFPA). With arc flash and ...

In a typical television transmitter installation 30 years ago — at a time when big power was coming into play (three-phase, 460VAC) — power was fed from a transformer located just outside of the ...

Arc flash is defined as an explosive release of energy caused by an electrical arc. Typically, the arc results from either a phase-to-ground or phase-to-phase fault created by many possible events.

A lot of numbers get bounced around about injuries and fatalities due to electrical incidents. The Department of Labor estimates that there are, on average, 9,600 serious electrical shock and burn ...