Electrical injuries are among the most severe hazards in the workplace, and arc flashes represent one of the most violent types of electrical incidents. These electrical explosions produce blinding ...

Switchgear comprises electrical disconnect switches, fuses and/or circuit breakers that control, protect and isolate electrical equipment in electrical power systems. A switchgear fault (phase loss, ...

Understanding of the electrical arc flash and electrical shock hazards has vastly improved over the past few years. Employers undertook a concerted effort to issue personal protective equipment (PPE).

The PGR-8800 is a microprocessor-based protection relay that limits arc-flash damage by using light sensors to rapidly detect the arc and then trip a circuit breaker. Phase current-transformer inputs ...

Receive an overview of the OSHA Arc Flash Guidance that was released in the fall of 2024 and how it impacts both electricians and electrical contractors. It isn’t a requirement, or is it? Learn about ...

Section 110.15 requires marking the high leg of a delta-connected 4-wire system where the midpoint of one phase is grounded. Arc flash warnings are required on ...