A layered approach that includes FR/AR undergarments can enhance worker safety, comfort and compliance.

Given the arc flash hazards and other risks that exist in electric utility work environments, an employer’s commitment to employee safety must never falter. It is essential for workers to wear personal protective equipment in these environments; in particular, prior to exposure, workers must don flame-resistant (FR) or arc-rated (AR) garments that meet or exceed assessed incident energy levels.

And while single-layer FR/AR garments are common in the utility industry, it’s important to recognize that they can fall short in areas such as weight, heat retention and comfort. Additionally, although the standard arc rating of 8 cal/cm² is frequently deemed sufficient, employers should be aware that it could leave workers vulnerable in certain hazardous scenarios.

With all that said, don’t forget that there’s an effective FR/AR clothing strategy that is sometimes overlooked: a layered approach to user protection that includes FR/AR undergarments, a critical component of the clothing system. Employers that use this approach can significantly enhance the safety, comfort and compliance of their workforce in hazardous environments.

The Importance of Protective Undergarments
Undergarments receive little attention in many FR/AR clothing programs despite their essential role in worker protection. Requiring workers to wear undergarments comprised of 100% cotton or natural fibers is a good step forward – but it still leaves room for error. A more robust solution for employers is to provide employees with FR/AR base layers, which offer greater protection.

FR/AR base layers act as a safety net in the event of an arc flash, preventing burns and avoiding combustion even when outer shirts are untucked. The use of this approach aligns with OSHA and NFPA guidelines, which emphasize the necessity of avoiding meltable fibers.

Three Key Benefits
A layered FR/AR clothing system offers a versatile, effective solution to the shortcomings of single-layer garments. By combining lightweight FR/AR garments, employers can achieve desired arc ratings without compromising employee comfort or mobility.

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For more on safety in the utility industry, check out Five Core Capacities for Sustainable Safety Excellence, Are You Making These 5 Heat Related Illness Mistakes?, and Using FR and AR Clothing to Mitigate Cold Stress.