Are you questioning the hours of standby time required or the test method to disconnect primary power for the required time and test the system at the end for require duration.
Military foam is 48 standby and 15 in alarm. I have seen places a little more remote require longer than 48 and honestly it's justified in many cases. Take an island and a typhoon. Take a site a long way off the main grid. Could be a long time to get things back up and running. Losing the fire alarm is one thing, losing the fire suppression is a bigger thing IMHO. Many people die in buildings with fire alarms but nearly none in buildings with fire suppression. Testing to those conditions is supported in NFPA 72 Table 14.4.3.2 item 7: "Disconnect all primary (main) power supplies and verify the occurrence of required trouble indication for loss of primary power. Measure or verify the systems standby and alarm current demand and verify the ability of batteries to meet standby and alarm requirements using manufacturer's data." Chris Cahill, PE* Associate Fire Protection Engineer Burns & McDonnell Phone: 952.656.3652 Fax: 952.229.2923 [email protected] www.burnsmcd.com *Registered in: MN Proud to be #14 on FORTUNE's 2014 List of 100 Best Companies to Work For -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Easter, Timothy Sent: Friday, October 23, 2015 1:11 PM To: [email protected] Subject: 72 or 90 hour battery test on the Foam panel and the foam controllers Is there an actual requirement during acceptance testing of foam systems to conduct a 72 or 90 hour battery test on the Foam panel and the foam controllers, if so where is the information located? I have a contractor telling me its required. Feel free to contact me with any questions. Regards, Timothy Easter, E.I.T. Graduate Fire Protection Engineer Direct: (757) 383-6217 [email protected]<mailto:[email protected]> AECOM 11832 Rock Landing Drive Suite, 306, Newport News, Virginia 23606 www.aecom.com This e-mail and any attachments contain AECOM confidential information that may be proprietary or privileged. If you receive this message in error or are not the intended recipient, you should not retain, distribute, disclose or use any of this information and you should destroy the e-mail and any attachments or copies. _______________________________________________ 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
