Arc Flash Hazards: Are You and Your Contractors in Compliance with NFPA 70E And OSHA Requirements?

Following NFPA and OSHA safety guidelines is mandatory for everyone. At ControlTemp Mechanical Services (CTMS), a division of BRAVO! Group Services, all our employees are NFPA 70E certified and are fully trained and equipped with the proper Personal Protective Equipment (PPE).

Below are some of the key components required to be in compliance with NFPA 70E:

Qualified Person Requirements

Only qualified persons may work on electrical equipment.  A Qualified Person is “One who has received training in and has demonstrated skills and knowledge in the construction and operation of electric equipment and installations and the hazards involved.”  All employees must be classified as either qualified or un-qualified to perform electrical work.  Make sure all your contractors are using qualified employees to perform electrical work. Qualified employees must have the appropriate PPE to perform electrical work.

Who Determines Who Is Qualified?

You Are Loosing Money By Not Having Your HVAC Maintained
There is no specific or formal program to determine who is or is not a “Qualified Person”.  It is left up to each employer to determine what their program is based on the risks to each employee. The program must be documented and include:

  • training in Electrical Safety, CPR/First Aid, Electrical Skills
  • demonstration of skills
  • demonstration of knowledge
  • annual review (minimum timeframe)
  • demonstration of skills & knowledge must be observed and documented by another Qualified Person

NFPA 70E 110.1 Electrical Safety Program

NFPA 70E requires employers to implement and document an overall electrical safety program.  The program must identify:

  • the electrical safety controls by which it is measured and monitored
  • the procedures for working within the Limited Approach Boundary and Arc Flash Boundary where an electrical hazard exists before work is started
  • a hazard/risk evaluation procedure to be used before work is started within the Limited Approach Boundary or Arc Flash Boundary

Boundaries & Safe Approach Distances

NFPA 70E defines two types boundaries for electrical workers to observe.  Shock boundaries deal specifically with shock hazards and are intended to prevent shock and electrocution.  The arc flash boundaries deal specifically with preventing burn injury due to arc flash incidents.  The table below explains the requirements for each boundary:


Boundaries and Safe Approach DistancesWhy Is Arc Flash Compliance Required?

  • OSHA 1910.132 PPE General Requirements state that employers must:
    • assess the workplace to determine if hazards are present or could be present that would necessitate the use of PPE
    • select and have affected employees use the PPE to protect themselves
    • train employees how to work around hazards
  • OSHA 29 CFR 1910.335(b)(1) Safety signs, safety symbols, and accident prevention tags shall be used where necessary to warn employees about electrical hazards which may endanger them, as required by 1910.145.
  • OSHA references NFPA 70E as a guide for conducting arc flash analysis. Any references by OSHA can be enforced as their own.
Scroll to Top