Eye protection for arc flash must protect from which type of light produced by the arc?

Eye protection for arc flash must protect from which type of light produced by the arc?

• A. Nuclear
• B. Infrared
• C. Radioactive
• D. Ultraviolet

Answer: (D)

Eye protection for arc flash must block ultraviolet light. An arc creates a very bright burst of UV radiation that can damage the surface of the eye and the cornea almost instantly, a problem known as photokeratitis or “welder’s flash.” UV photons are high-energy and can cause acute eye injuries and, with repeated exposure, long‑term damage. That’s why arc-rated eye protection is designed to filter out UV (and also provide shielding from the visible and infrared portions of the spectrum to reduce glare and heat). The other options aren’t produced by an arc flash, so they’re not the relevant hazard for eye protection in this context.

Eye protection for arc flash must block ultraviolet light. An arc creates a very bright burst of UV radiation that can damage the surface of the eye and the cornea almost instantly, a problem known as photokeratitis or “welder’s flash.” UV photons are high-energy and can cause acute eye injuries and, with repeated exposure, long‑term damage. That’s why arc-rated eye protection is designed to filter out UV (and also provide shielding from the visible and infrared portions of the spectrum to reduce glare and heat). The other options aren’t produced by an arc flash, so they’re not the relevant hazard for eye protection in this context.