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2018年10月17日 · In PPE CAT 2, workers need the following clothing: Required Clothing: Arc Rated Long Sleeve Shirt and Pants or Arc Rated Coverall with minimum arc rating of 8 cal/cm 2; Required AR Face and Head Protection: Arc Rated Arc Flash Suit Hood or AR Face Shield, Sock Hood/Balaclava with minimum arc rating of 8 cal/cm 2

The HRC (Hazard Risk Category) is established by the minimum amount of calories per square centimetre (ATPV or Cal/cm2). Any garment or garment set tested must result with a 50% probability of a 2nd or 3rd degree burn occurring to the wearer. The higher the result, expressed in ATPC or Cal/cm2, the higher the HRC level achieved.

2017年1月16日 · One subtle but important change you will start to see on your Tyndale arc-rated/flame resistant (FR) garments on a rolling basis in the near future is a shift in terminology. In fact, the 2015 edition of NFPA 70E eliminated the term hazard risk category (HRC), replacing it with the term PPE Category (CAT).

2019年2月15日 · It’s common to see both “HRC” and “PPE Category” on garment labels to indicate the arc rating of the garment. You might also see “ARC 2” on garment labels–this is a shorthand term for the terms to specify that they are for arc flash.

2013年3月29日 · The HRC 2, or Hazard Risk Category, is defined by the NFPA 70E, 2012 Edition to have an arc rating that is greater than or equal to 8 cal/cm², but less than 25 cal/cm². Be careful not to classify...

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Which leads to the question what is an HRC? An HRC level is determined by the minimum amount of calories per square centimeter (ATPV or Cal/cm2). Any treated garment must pass through with a 50% probability of a 2nd or 3rd degree burn occurring, which is how the protective level of the treated clothing is determined.

HRC/ARC FLASH PERSONAL PROTECTIVE EQUIPMENT (PPE) CATEGORIES . HRC PPE Category 0: < 1.2 cal/cm2 Clothing – Long sleeve shirt and long pants made of nonmelting or untreated natural fiber (i.e., untreated cotton) with a fabric weight of at least 4.5 oz./square yard.

3 天之前 · HRC 2 HRC 2: Requires a surface layer and base layer FR protection. This level of protection would include an FR shirt and FR pants or a pair of FR coveralls in addition to FR undergarments providing 1 to 2 layers. The minimum rating for this protection level is 8 calories per cubic centimeter squared, or 8 cal/cm2