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OSHA recently released on arc flash safety, highlighting the dangers of low-voltage systems and emphasizing the need for proper personal protective equipment (PPE), including arc-rated clothing, for nearly all energized work above 50 volts, even on seemingly low-voltage systems.  This marks the first significant update to arc flash guidance from OSHA in nearly 20 years.

 

Key points about the new OSHA arc flash guidance:

Focus on low voltage – The guidance specifically addresses the misconception that low-voltage systems are safe from arc flashes, emphasizing that even 120/208 volt systems can cause severe injuries if not handled properly.

Proper PPE required – OSHA reiterates that all energized work above 50 volts should be done with appropriate arc-rated PPE, including clothing, to prevent burns from arc flashes.

De-energized but not locked out – The guidance clarifies that even if equipment is considered “de-energized,” if it is not properly locked out or tagged out, it must be treated as energized and requires proper PPE.

Training and awareness – The new guidance emphasizes the importance of worker training on arc flash hazards, proper PPE use, and hazard identification.

 

Multiple documents – OSHA has released a detailed document for employers and simplified one-page “quick cards” for workers to easily reference key information.

 

 

Why is this update important?

Increased electrification – With the growing adoption of electric vehicles and renewable energy, more workers are exposed to potential arc flash hazards.

Misconception about low voltage – Many workers mistakenly believe low voltage systems are not a significant arc flash risk.

 

Preventing injuries – This new guidance aims to reduce the number of arc flash injuries and fatalities by addressing common misconceptions and promoting better safety practices.

 

The NIETC provides our contractors and members a sample Energized ÁñÁ«Ö±²¥ Work Policy that aligns with OSHA’s Construction and General Industry electrical safety regulations.  It is based on the 2024 edition of the NFPA 70E Standard for ÁñÁ«Ö±²¥ Safety in the Workplace and includes applicable references to the NFPA 70B, Standard for ÁñÁ«Ö±²¥ Equipment Maintenance, 2023 edition.  Contact me if you would like a copy.