The NPRM suggested that the flash rate for visual indicators be set at or below 3 Hz, based on research for visual fire alarms, and asked (Question 8) whether this value was appropriate....
Search Results "Flash Rate"
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Paragraph (f) Prevention of visually induced seizures (Section-by-Section Analysis)
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408.3 Flashing
Where ICT emits lights in flashes, there shall be no more than three flashes in any one-second period....
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§1193.43(f) Prevention of visually-induced seizures
(f) Prevention of visually-induced seizures. Visual displays and indicators shall minimize visual flicker that might induce seizures in people with photosensitive epilepsy.
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4.28.3(5)
(5) The flash rate shall be a minimum of 1 Hz and a maximum of 3 Hz....
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Pulse Duration and Flash Rate
Pulse Duration and Flash Rate Visual alarm strobes produce a repetitive burst of high-intensity light. The repetition of this pulse at a regular interval is the flash rate....
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405.1 General (Section-by-Section Analysis)
405.1 General (Section-by-Section Analysis) This section proposes that, where ICT emits lights in flashes, there can be no more than three flashes in any one-second period....
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405.1 General
Where ICT emits lights in flashes, there shall be no more than three flashes in any one-second period....