Each data center is unique but contains a generic layout[1] consisting of three main systems, namely: a) the electrical system; b) the mechanical system; and c) the information technology (IT) system.

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 ...

Part 1 of this series addresses significant updates to arc flash hazard marking requirements found in the 2026 NEC Sec. 110.16 to improve the safety of all electrical ...

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 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.

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, ...

Tri-State Generation and Transmission requires its linemen to wear flame-retardant clothing and use the proper tools and personal protective equipment when working ...

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 ...

For Samy Faried, an ABB expert who has spent 15 years analyzing arc flash hazards, a new rule recently finalized by the Occupational Safety and Health Administration (OSHA) will save lives. In April ...

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 ...

Something that happens in a split second can impact a worker and his or her family for the rest of their lives. While arc flash injuries can be fatal, those that aren ...