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NFPA 13 requires one sprinkler at the top and one sprinkler near the bottom of accessible, noncombustible vertical shafts (8.15.2.1 and 8.15.2.3 in 2013 NFPA 13).
Does this literally mean to use a single sprinkler, regardless of the size of the shaft, or is the intent to fully protect the entire area of the shaft? If the intent is to fully protect the area, would the sprinkler spacing be light or ordinary hazard? Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe
2 Comments
Dan Wilder
8/25/2022 09:12:53 am
I'm reading the intent as a open vertical shaft as typically smaller in nature and would only require 1 sprinkler (up to 15x15 with a light hazard, standard coverage spacing) to provide full coverage. It's enclosed nature would lend itself to be less of a hazard overall with the sprinkler at the bottom only being provided due to potential debris collection (similar to the bottom of an elevator). My thoughts are this would provide cooling to the collection of heated gasses that would rise to the top of the shaft.
Alex
8/25/2022 09:24:47 am
Hi, Leave a Reply. |
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