I'm being asked to provide sprinkler protection for emergency electrical feeders for a highrise hotel. NFPA 70 (2014 Edition) Article 700.10.D.1 states:
"Feeder Circuit wiring shall meet one of the following conditions: 1) Be installed in spaces or areas that are fully protected by an approved automatic fire suppression system."
The conduit runs exposed tight to deck, and also through non-sprinklered, non-combustible ceiling cavities.
I'm worried that we'll be required to sprinkler the entire concealed space where there is unprotected conduit installed - or would it be acceptable to provide localized coverage?
Does anyone have experience with this or know of any guidelines for this application?
This is a first for me in my 20-years, historically I've always seen this type of conduit be encased in concrete or handled by one of the other (4) options listed in the NEC.
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