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What Is an Electric Arc?
Electric arcs are generated by the ionization of gas. Electrical conductivity between electrodes with different strengths or phases, or a ground connection. Electric arcs can be caused by technical error or, as is often the case, human error. Better knowledge about electric arcs and recent standards for the classification of textiles subject to electric arc have greatly impacted occupational health. In the U.S., standard NFPA70E1 has led the way in this area. In Canada, CSA standard Z462, modeled after NFPA70E1, was released in 2008.
ATPV (Arc Thermal Performance Value) is a measurement of the maximum heat (in cal/cm2) that a given material can sustain before second degree burns might occur.
- Classification of protective clothing according to ATPV:
- Level 0 Flame retardant not required
- Level 1 ≥ 4 cal/cm2
- Level 2 ≥ 8 cal/cm2
- Level 3 ≥ 25 cal/cm
Section 130.7 of NFPA70E (A): Employees working in an area where electrical risks are present must wear specific protective equipment on each part of their body to protect them during their work. (C-12) Clothing and equipment must protect against the risk of shock and electric arcs.
This standard addresses protective clothing requirements based on the degree of electric arc exposure of the workers who wear them. Its aim is to ensure the protection of employees who install, maintain or repair electrical systems.
Did you know…
- Every year in North America, more than 7,000 people suffer burns at their workplace.
- Most third-degree burns are due to the fact that clothing catches fire and continues to burn, hence the need for proper protection.
- There are two types of electrical hazard: electrical shock and electrical arc.
- The temperature of an electric arc can exceed that of the sun. Electrical energy is transformed into heat, light and shockwave.
ATPV Hazard Rating Category Level 2 ≥ 8 cal/cm2Light, comfortable clothing with fibers that maintain flameproof properties. All products available in sets may be sold separately. Information is available on other available products.
| Model |
Description |
Size |
| VCHE02 |
Protera Shirt, medium blue, 8.5 cal/cm2 |
S to XXXL |
| VPAE02 |
Protera Pants, navy, 12 cal/cm2 |
26 to 52 |
| VCOE04 |
Glenguard Coveralls, 8.3 cal/cm2 |
S to XXXL |
| VCOE04 |
Glenguard Coveralls with Reflective Bands, 8.3 cal/cm2 |
S to XXXL |
| Included in Sets 1, 2 and 3 |
| YLU082 |
Clear Safety Goggles |
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| MGK00 Class 0 |
Electrical Glove Set with rubber gloves, glove shells and case |
8 to 11 |
| TCRE02 |
Deluxe Hat and Visor Set, 8.3 cal/cm2 |
Universal |
| XSA003 |
Carrying Bag |
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| YSA058 |
100% Cotton Bag for Hat/Visor Kit |
Universal |
| Class |
AC/DC VoltageTest |
AC/DC Voltage Max. Use |
| 00 |
2,500 / 10,000 |
500 / 750 |
| 0 |
5,500 / 20,000 |
1,000 / 1,500 |
| 1 |
10,000 / 40,000 |
7,500 / 11,250 |
| 2 |
20,000 / 50,000 |
17,000 / 25,500 |
| 3 |
30,000 / 60,000 |
26,500 / 39,750 |
| 4 |
40,000 / 70,000 |
36,000 / 54,000 |
Recertification of electrical gloves is available.
Hazard Rating Category Level 4Light, comfortable clothing with fibers that maintain flameproof properties. All products available in sets may be sold separately. Information is available on other available products.
| Model |
Description |
Size |
| VMAE01 |
Protera Jacket, navy, 42 cal/cm2 |
S to XXXL |
| VSAE01 |
Protera Overalls, navy, 42 cal/cm2 |
S to XXXL |
| TCA013 |
Level 4 Hood, 42 cal/cm2 |
S to XXXL |
| MGK002 Class 2 |
Rubber Electrical Gloves with glove shells and carrying case |
8 to 11 |
| YLU082 |
Clear Safety Goggles |
| XSA003 |
Carrying Bag included |
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