Arc Flash Personal Protective Equipment
Electricians and all qualified employees working with live or de-energized electrical equipment must wear arc flash personal protective equipment as protection against electrical hazards. Electrical hazards, such as arc flashes, can seriously injure or fatally wound employees. All non-qualified employees require protection from electrical hazards by the use of barricades, attendants, enclosures, safety signs, and insulation.
The National Electrical Code (NFPA 70E: electrical safety standard in the workplace) use Hazard Risk Categories to indicate the severity of possible danger on electrical equipment. For example, electrical equipment categorized with the Hazard Risk Category of Dangerous (greater than 4 [40 cal/cm2]) cannot be maintained, operated, or serviced while it’s turned on (live) without the appropriate permits and approvals.
Electricians and other workers that are qualified to work on electrical equipment must be protected from arc-flash hazards and shock hazards. Arc Flash Personal Protective Equipment details for electrical workers against arc flash hazards, for example, include PPE (eye protection, fire-resistant clothing, face shield, among others) barricades and distance. Shock hazard protection is similar: PPE (insulated tools, rubber gloves), insulation, barricades, and distance.
Arc Flash Personal Protective Equipment Procedures
The following are some of the arc flash safety precautions and procedures must be adhered at all times:
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