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)
SUITABLE FOR USE IN
Substations, Utilities Power Generators, Industrial electrical maintenance & installations
Removal of bolted covers (to expose bare energized parts)
VOLTAGE <240
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)
SUITABLE FOR USE IN
Substations, Utilities Power Generators, Industrial electrical maintenance & installations, Power & Utility Companies, Installation, maintenance & repairs of high voltage equipment
Work on energized parts, including voltage testing
VOLTAGE >240-600
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
SUITABLE FOR USE IN
Substations, Utilities Power Generators, Industrial electrical maintenance & installations, Power & Utility Companies, Installation, maintenance & repairs of high voltage equipment
Insertion or removal of individual starter “buckets” from MCC & inserting or removal (racking) of CB
from cubicles
VOLTAGE <600
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
SUITABLE FOR USE IN
Substations, Utilities Power Generators, Industrial electrical maintenance & installations, Power & Utility Companies, Installation, maintenance & repairs of high voltage equipment, switchrooms
Inserting or removal (racking) of CB
from cubicles, doors open
VOLTAGE >1000
