Especially since Chapter 8 and rules are divided by the Sprinkler Type, not hazard.
R/ Matt From: Sprinklerforum [mailto:[email protected]] On Behalf Of 321 Sent: Wednesday, August 31, 2016 12:14 PM To: [email protected] Subject: Re: ESFR - Ordinary Hazard I would think that the obstruction rules of NFPA 13 Ch 8 would apply to the ESFR (i.e. 36" clear below deflector) regardless of the hazard. ESFR's were developed and listed by U.L. with additional room below the head to allow for the "Discharge Umbrella" to develop. Just my opinion... John W. Farabee, On Wednesday, August 31, 2016 1:37 PM, Gregg Fontes <[email protected]<mailto:[email protected]>> wrote: 2016 NFPA 13 – 8.4.6.6 Occupancy and Hazard. (Handbook) In an existing warehouse building being converted to a non-storage use, the existing ESFR sprinklers can remain in place provided the new use is either light or ordinary hazard. My questions is if it is ordinary hazard occupancy, do the ESFR obstruction rule apply or due the obstruction rules for standard systems apply (i.e. conventional)? As an example, would 30” x 48” lights be allowed to hang below the ESFR sprinkler and not be considered an obstruction? Same with new duct work greater than 24”? Etc. Thanks, Gregg Fontes Cen-Cal Fire Systems, Inc. 209-334-9119 _______________________________________________ Sprinklerforum mailing list [email protected]<mailto:[email protected]> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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