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NFPA 101 Distances Between Exit Signs

north star

Sawhorse
Joined
Oct 19, 2009
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I have an existing, fully sprinkled Federal bldg. with lighted Exit Signs in the corridors.
The applicable Standard in-play is the NFPA 101.


Q: What is the maximum distance allowed between the Exit Signs ?......FWIW,
the bldg. owner plans to upgrade a lot of the existing Exit Signs with LED illuminated
types, and I would like to provide the applicable Code sections from NFPA 101.

Thanks for your input !


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Last edited:
UL 924 - 100 ft is the viewing distance for electrically powered exit signs so a maximum 200 feet would be the distance between exit signs.

NON-ELECTRICAL UL 924 EXIT SIGNS​

Non-electrical glow in the dark (photoluminescent) and self-luminous tritium powered exit signs are also evaluated under UL 924 but to a slightly different standard. Non-electrical exit signs are given a viewing distance rating of 50, 75, 100, or 125 feet based on visibility testing procedures. After the photoluminescent material is charged for one hour, glow in the dark exit signs must be visible from a given viewing distance for at least 90 minutes, similar to electrical exit signs.
 
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