Required Clothing: Arc Rated Long Sleeve Shirt and Pants or Arc Rated Coverall with minimum arc rating of 8 cal/cm 2.In PPE CAT 2, workers need the following clothing: Today, the comfort of PPE CAT 1 and 2 is comparable so it makes more sense to choose CAT 2 clothing. In fact, the majority of companies with exposures requiring CAT 1 typically opt for CAT 2 clothing to cover both categories. PPE CAT 2 can likely be met with a single layer of Arc Rated PPE. PPE Category 2: Minimum Arc Rating 8 cal/cm 2 Additional PPE: Hard Hat, Eye Protection (Glasses, Goggles), Hearing Protection.Required Hand Protection: Heavy-Duty Leather Gloves.In addition to AR clothing, the following products are required or to be used as needed: As Needed: Arc Rated Jacket, Rainwear, Parka, Hard Hat Liner.Required Face and Head Protection: Face Shield (with “wrap around” guarding…i.e balaclava) or Arc Flash Suit Hood.Required Clothing: Long Sleeve Shirt (or Jacket) and Pants or AR Coverall with minimum arc rating of 4 cal/cm 2.Requiring a single layer of arc-rated PPE, workers need the following clothing: PPE CAT 1 represents the lowest level in which Arc Rated PPE s required. The PPE manufacturer is required to obtain and identify these arc ratings in their products which, simply put, represents the amount of incident energy (in cal/cm 2) on a material or a multilayered system of materials that results in a 50% probability to cause the onset of a second degree skin burn injury.Ī brief overview of each of these 4 PPE Categories is listed below: PPE Category 1: Minimum Arc Rating 4 cal/cm 2 NFPA 70E (2018) now gives four categories of PPE, with each category including the minimum Arc Rating value for the required PPE. The standard now uses PPE categories which are based on an incident energy analysis. This most recent edition removed the concept of Hazard/Risk Categories and the option wear Non-FR/AR natural fiber garments in HRC 0 was eliminated. The 2018 edition of NFPA 70E changed the way measurement is completed and PPE is selected. Please note, this blog is only intended to address the 4 PPE categories for those who elect to use tables 130.7 in lieu of completing an arc flash risk analysis. Whether it’s in the form of fall protection equipment, respiratory protection or flame resistant & arc rated clothing, employers are required to provide workers with adequate PPE for the job that is being completed.įollowing our last blog looking at the hierarchy of risk controls in NFPA 70E (2018), we would today like to turn our attention to the 4 different Arc Flash PPE Categories in the standard, the clothing required for each category, as well as provide information on determining which PPE you need to use. No matter the industry or activity, personal protective equipment (PPE) has long been considered the last line of defense for workers, and often draw the line between a “near miss” and a life changing injury or fatality.
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