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HRC/PPE Levels for Arc Rated FR Clothing

admin by admin
March 24, 2023
in Safety


The HRC/PPE Categories Chart for Arc Rated FR Clothing

Wearing flame resistant clothing can provide the necessary thermal protection to shield workers from an Arc Flash. Once the source of ignition is removed, the FR garments will self-extinguish, greatly limiting the severity of a burn. In many cases, they can mean the difference between a minor accident and a tragic fatality.

Measuring Arc Flash Heat

Arc Thermal Performance Value (ATPV) is the exposure on a material that results in a sufficient heat transfer through the material for a 50% probability of the onset of a 2nd-degree burn. An ATPV rating is assigned to FR clothing to indicate the level of protection that is required. In other words, the higher the rating (cal/cm2), the greater the protection.

Arc Rated Clothing Flame Resistance Levels

A popular testing method for flame resistance of Arc Flash clothing is to use the HRC – Hazard/Risk Category. This was recently changed to PPE level.

The HRC or PPE level is measured by the minimum amount of calories/cm2.  There are four risk levels, and the following chart illustrates the 4 HRC/PPE levels with corresponding clothing and minimum arc ratings. 

 

Hazard/Risk Category HRC Table

 

If you are a little unsure of what cal/cm2 is in regards to heat, the common explanation is: 1cal/cm2 = holding 1 match under your finger for 1 second, similarly, 8cal/cm2 = holding 8 matches under your finger for 1 second.

Elliotts Australia provides a range of Level 1, 2 and 4 HRC/PPE rated FR clothing, which includes the Tecasafe Plus workwear, NENS09 Tecasafe workwear, and ArcSafe T40 Switching Suits.

 

Contact Us

If you have some enquiries on any Arc Rated Protective Clothing and Gear, please let us know. Call us on 07 3265 2944 or message us on our Contact Page.

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Tags: arc flash clothingarc rated clothingPPE levels
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