Ultraviolet hoods shall be tested and listed in accordance with which pair of standards?

• A. UL 510 and UL 510C
• B. UL 600 and UL 600C
• C. UL 700 and UL 700C
• D. UL 710 and UL 710C

Answer: (D)

Ultraviolet hoods are evaluated under a standards family that specifically covers ultraviolet flame detection equipment and its protective housings. The correct pair is UL 710 and UL 710C because UL 710 sets the requirements for ultraviolet flame detectors and their associated hoods, including performance under flame exposure and relevant electrical and construction criteria. UL 710C is the updated revision that incorporates current test methods and alterations to ensure the equipment remains safe and reliable in service. The other standards refer to different types of equipment and do not apply to ultraviolet hoods, so they’re not appropriate for listing these components.