Rahe, For what it's worth, number one reason in my book is due to the very act of the water flow measurement itself! ! !
-----Original Message----- From: Rahe Loftin - 7PMC [mailto:[email protected]] Sent: Friday, June 13, 2014 2:23 PM To: SprinklerFORUM Subject: Calculation Safety Factor I have always been under the impression that the safety factor indicated in specifications for hydraulic calculations was for water supply fluctuations in sprinkler systems connected to public water supplies. This is also indicated in the commentary in the NFPA 13 Handbook. However, recently a sprinkler contractor was contending that it was to allow for field piping changes. Any opinions? *Thanks* *Rahe Loftin, PE * _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
