BULLSEYE
Roland Huggins, PE - VP Engineering American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives Dallas, TX http://www.firesprinkler.org <http://www.firesprinkler.org/> > On Dec 3, 2014, at 10:37 AM, Travis Mack <[email protected]> wrote: > > This is an interesting issue on the FDC. My understanding is the FDC on a > *sprinkler *system is not required to accommodate the largest sprinkler > demand. It is a supplement to the main water supply. Otherwise, we would be > calculating the FDC piping for all systems, like we do a manual standpipe > system. > > For example, is a fire dept connection required to be sized to supply an ESFR > sprinkler system with 45' of storage and K25 ESFR sprinklers? If so, that 4" > FDC put on the building is not near adequate. Now, I am not saying it is not > a bad idea, and we are always allowed to do more than the minimum required by > NFPA 13. But, I don't believe that NFPA 13 mandates that the FDC be capable > of fully supplying the fire sprinkler systems. Note: This does not stand true > for manual standpipe systems. > > Travis Mack, SET _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
