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Personal Protective Equipment for Hazard/Risk Categories NFPA 70E

Personal Protective Equipment for Hazard/Risk Categories

 Category IV 65cal/cm2 Arc Flash Protective Suit

Hazard/Risk Category Protective Clothing and PPE
0

Protective Clothing, Nonmelting or Untreated natural Fiber (i.e. untreated cotton, wool, rayon, or silk, or blends of these materials) with a Fabric Weight of at Least 4.5 oz/yd2
Shirt (long sleeve)
Pants (long)

Protective Equipment
Safety glasses or safety goggles (SR) Hearing protection (ear canal inserts) Heavy duty leather gloves (AN) (See Note1.) 1 Arc-Rated Clothing, Minimum Arc Rating of

1

Arc-Rated Clothing, Minimum Arc Rating of 4 cal/cm2
Arc-rated long-sleeve shirt and pants or arc-rated coverall
Arc-rated face shield (see Note 2) or arc flash suit hood
Arc-rated jacket, parka, rainwear, or hard hat liner (AN)

Protective Equipment
Hard hat
Safety glasses or safety goggles (SR)
Hearing protection (ear canal inserts)
Heavy duty leather gloves (See Note 1.)
Leather work shoes (AN)
2 Arc-Rated Clothing, Minimu

2

Arc-Rated Clothing, Minimum Arc Rating of 8 cal/cm2
Arc-rated long-sleeve shirt and pants or arc-rated coverall
Arc-rated flash suit hood or arc-rated face shield (See Note 2) and arc-rated balaclava
Arc-rated jacket, parka, rainwear, or hard hat liner (AN)

Protective Equipment
Hard hat
Safety glasses or safety goggles (SR)
Hearing protection (ear canal inserts)
Heavy duty leather gloves (See Note 1.)
Leather work shoes (AN)

3

Arc-Rated Clothing Selected so That the System Arc Rating Meets the Required
Minimum Arc Rating of 25 cal/cm2

Arc-rated long-sleeve shirt (AR)
Arc-rated pants (AR)
Arc-rated coverall (AR)
Arc-rated flash suit jacket (AR)
Arc-rated arc flash suit pants (AR)
Arc-rated arc flash suit hood
Arc-rated gloves (See Note 1.)
Arc-rated jacket, parka, rainwear, or hard hat liner (AN)

Protective Equipment
Hard hat
Safety glasses or safety goggles (SR)
Hearing protection (ear can

4

Arc-Rated Clothing Selected so That the System Arc Rating Meets the Required
Minimum Arc Rating of 40 cal/cm2

Arc-rated long-sleeve shirt (AR)
Arc-rated pants (AR)
Arc-rated coverall (AR)
Arc-rated flash suit jacket (AR)
Arc-rated arc flash suit pants (AR)
Arc-rated arc flash suit hood
Arc-rated gloves (See Note 1.)
Arc-rated jacket, parka, rainwear, or hard hat liner (AN)

Protective Equipment
Hard hat
Safety glasses or safety goggles (SR)
Hearing protection (ear canal inserts)
Leather work shoes (AN)

AN: as needed (optional). AR: as required. SR: selection required.

(1) If rubber insulating gloves with leather protectors are required, additional leather or arc-rated gloves are not required. The combination of rubber insulating gloves with leather protectors satisfies the arc flash protection requirement.

(2) Face shields are to have wrap-around guarding to protect not only the face but also the forehead, ears, and neck, or, alternatively, an arc-rated arc flash suit hood is required to be worn.

(3)ATPV is defined in ASTM F 1959, Standard Test Method for Determining the Arc Thermal Performance Value of Materials for Clothing, as the incident energy on a material, or a multilayer system of materials, that results in a 50% probability that sufficient heat transfer through the tested specimen is predicted to cause the onset of asecond-degree burn injury based on the Stoll curve, in cal/cm2.

EBT is defined in ASTM F 1959 as the incident energy on amaterial or material system that results in a 50% probability of breakopen. Arc rating is reported as either ATPV or EBT, whichever is the lower value. 

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