What type of clothing is recommended to help reduce injury during an electrical arc or flash?

The recommended type of clothing to help reduce injury during an electrical arc or flash is flame-resistant (FR) clothing. FR clothing is specifically designed to self-extinguish when exposed to flames or high heat, significantly reducing the risk of burns and other injuries in the event of an electrical arc or flash. This material helps to protect the skin by not igniting or continuing to burn once the source of heat is removed.

While cotton, leather, and denim have their uses, they do not offer the same level of protection as FR clothing. Cotton can catch fire and continue to burn, while leather, although durable, can also ignite under extreme heat. Denim, while it may provide some protection due to its density, does not have the flame-resistant properties necessary to mitigate the risks associated with electrical arcs and flashes effectively. Thus, FR clothing is the best choice for ensuring safety in electrical work environments.