NFPA 70e PPE Selection

NFPA 70e PPE Selection is possible only after an arc flash analysis has been performed to accurately determine an arc flash protection boundary. Following this, the next step is to identify the level of Personal Protection Equipment that is mandated by NFPA 70e that is to be worn by electrical workers.

Below is the NFPA 70e ppe selection requirements that are based on the expected Arc Flash explosive energy level of the equipment being inspected.

Arc flash ppe is very important, if not essential. Electrical workers must be properly trained in the safe use and application of appropriate personal protective equipment for the possible electrical hazard with which they may face and must wear this equipment if they want to be properly protected. Examples of such equipment could include a hard hat, face shield, flame resistant neck protection, ear protectors, flame retartdant suit, insulated rubber gloves with leather protectors, and insulated leather footwear. All clothing must meet the requirements as shown in the latest 2004 edition of NFPA 70E. PPE, sufficient for protection against the potential electrical flash, is required for every part of the body. The selection of the required thermal rated PPE depends on the incident energy level at the point of work. check the following image.


 


PPE Category 1: Minimum Arc Rating 4 cal/cm2
PPE CAT 1 represents the lowest level in which Arc Rated PPE s required. Requiring a single layer of arc-rated PPE, workers need the following clothing:

  • Required Clothing: Long Sleeve Shirt (or Jacket) and Pants or AR Coverall with minimum arc rating of 4 cal/cm2
  • Required Face and Head Protection: Face Shield (with “wrap around” guarding…i.e balaclava) or Arc Flash Suit Hood
  • As Needed: Arc Rated Jacket, Rainwear, Parka, Hard Hat Liner

In addition to AR clothing, the following products are required or to be used as needed:

  • Required Hand Protection: Heavy-Duty Leather Gloves
  • Additional PPE: Hard Hat, Eye Protection (Glasses, Goggles), Hearing Protection
  • Footwear: Leather Footwear (as needed)

PPE Category 2: Minimum Arc Rating 8 cal/cm2
PPE CAT 2 can likely be met with a single layer of Arc Rated PPE. In fact, the majority of companies with exposures requiring CAT 1 typically opt for CAT 2 clothing to cover both categories. Today, the comfort of PPE CAT 1 and 2 is comparable so it makes more sense to choose CAT 2 clothing.

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/cm2
  • 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/cm2
  • As Needed: Arc Rated Jacket, Rainwear, Parka, Hard Hat Liner

In addition to AR clothing, the following products are required or to be used as needed:

  • Required Hand Protection: Heavy-Duty Leather Gloves
  • Additional PPE: Hard Hat, Eye Protection (Glasses, Goggles), Hearing Protection
  • Footwear: Leather Footwear (as needed)

Enespro PPE 8 CAL, 12 CAL, and 20 CAL Arc Flash Kits meet NFPA 70E-2018 PPE Cat 1 & 2 and they also offer breathable comfort, flexibility and durability.

PPE Category 3: Minimum Arc Rating 25 cal/cm2
PPE Category 3 and 4 require additional layers of PPE. Arc flash suit hoods are required and rubber insulating gloves & leather protectors or arc rated gloves are required. For PPE Category 3; workers need the following clothing:

  • Required Clothing: Arc Rated Flash Suit Jacket and AR pant or AR coverall with minimum arc rating of 25 cal/cm2
  • Required AR Face and Head Protection: Arc Rated Flash Suit Hood with minimum arc rating of 25 cal/cm2
  • Required AR Hand Protection: Rubber insulating gloves & leather protectors or arc rated gloves
  • As Needed: Arc Rated Jacket, Rainwear, Parka, Hard Hat Liner

In addition to AR clothing, the following PPE is required:

  • Additional PPE: Hard Hat, Eye Protection (Glasses, Goggles), Hearing Protection (inserts), Leather Footwear

PPE Category 4: Minimum Arc Rating 40 cal/cm2
The final PPE Category requires AR clothing with a minimum rating of 40 cal/cm2.

  • Required Clothing: Arc Rated Flash Suit Jacket and AR pant or AR coverall with minimum arc rating of 40 cal/cm2
  • Required AR Face and Head Protection: Arc Rated Flash Suit Hood with minimum arc rating of 40 cal/cm2
  • Required AR Hand Protection: Rubber insulating gloves & leather protectors or arc rated gloves
  • As Needed: Arc Rated Jacket, Rainwear, Parka, Hard Hat Liner

In addition to AR clothing, the following PPE is required:

Additional PPE: Hard Hat, Eye Protection (Glasses, Goggles), Hearing Protection (inserts), Leather Footwear   

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