WORKIT 2021 Catalogue - Flipbook - Page 91
Everyday work clothes can ignite, burn or melt when exposed to electric arc flash, flash fires
or other heat-related hazards.
The extent of a burn injury can be substantially reduced if wearing the correct FR garments.
Be sure to know the standards before selecting the product required for your
work environment.
NFPA 70E: STANDARD FOR ELECTRICAL
SAFETY IN THE WORKPLACE
This standard defines the guidelines for Electrical Safety in the Workplace. It addresses the electrical safety
requirements for employees in the worksite, such as safe work practices and PPE (Personal Protective Equipment),
which includes arc rated clothing based upon the incident energy associated with the specific task. An arc flash heat
can achieve high temperatures, so the standard’s categories of hazard (rank PPE1 to PPE4) are directly related to the
level of protection.
To define the level of protection that an FR fabric provides, the material needs to be tested following the ASTM F 1959
Standard. This test defines the ATPV (Arc thermal performance value) which indicates the level of protection provided
by the FR fabric. The higher the number, the greater the protection.
|
ATPV minimum
4 cal/cm 2
PPE2 |
TPV minimum
8 cal/cm 2
PPE3 |
ATPV minimum
25 cal/cm 2
PPE4 |
TPV minimum
40 cal/cm 2
PPE1
ENA NENS 09-2014:
This is a guideline for the selection and maintenance of PPE for electric arc hazards. While not a standard, this has
been set up by The Energy Networks Association (ENA) to provide a comprehensive guide to minimum levels of PPE
required to protect workers against electrical hazards in Australia.
FLAME
RESISTANT
NFPA 2112: STANDARD ON FLAME-RESISTANT
GARMENTS FOR PROTECTION OF INDUSTRIAL
PERSONNEL AGAINST FLASH FIRE
This standard defines the guidelines for Flame Resistant Garments for Protection of Industrial Personnel Against
Flash Fire. It specifies the minimum performance requirements, test methods for flame-resistant fabrics and
components, designs, and certification requirements.indicates the level of protection provided by the FR fabric.