Arc Rated Vs. Flame Resistant Clothing — Important Difference To Know

AR FR clothing

When the National Fire Protection Association (NFPA) replaced the term “Flame Resistance (FR)” with”Arc-Rated (AR)” in its 2012 edition of the NFPA 70E, it stirred confusion among many.

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What was the difference between FR and AR?

important difference between the two
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The answer is:

“All arc-rated clothing is flame resistant, but not all flame resistant clothing is arc-rated”

Why wear Flame Resistant clothing? What’s the Real Story?

What does kill people? and cause the majority of the catastrophic injuries as well as the fatal ones, is that brief thermal hazard igniting flammable clothing. The flammable clothing continues to burn, lasting much longer than the initial hazard, and affects a much larger area of your body. And it is that surface area and severity that combine to cause most of the catastrophic and fatal illnesses.

This is where Flame Resistant, or FR, fabrics come in.

FR clothing can provide several benefits for people involved in safety critical working conditions.

What is Arc Rated Clothing? Why Do We Need One?

AR indicates that a garment has an arc rating and the level of protection has been determined through testing.

Read on to find out which one should be used while working in a power distribution system.

Let us know if you have any queries regarding this topic and do provide us with your feedback in the comments.

Hiring a professional electrical engineer to conduct an Arc Flash Analysis and Short Circuit Study is a great way to ensure the safety of your facility and workers against unwanted incidents.

AllumiaX, LLC is one of the leading providers of Power System Studies in the northwest. Our matchless services and expertise focus on providing adequate analysis on Arc Flash, Transient Stability, Load Flow, Snubber Circuit, Short Circuit, Coordination, Ground Grid, and Power Quality.

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