Hey Chris.  I'd ask the manufacturer's.  Marc McDaniel locally could help you 
I'm sure.

Scott

Office: (763) 425-1001 x 202
Cell: (612) 759-5556

-----Original Message-----
From: Sprinklerforum [mailto:[email protected]] On 
Behalf Of Cahill, Christopher
Sent: Wednesday, March 02, 2016 7:13 AM
To: [email protected]
Subject: Pumps shall not be started more than 2 times in 10 hours

For DoD projects there is this requirement in their standard specs:

"The fire pumps shall be operated for a period of at least 10 minutes for each 
of the starts; except that electric motors over 200 horsepower shall be 
operated for at least 15 minutes and shall not be started more than 2 times in 
10 hours."

Anyone know where this comes from and if there is a real concern with starting 
pumps more often than that?  The pumps in this case are 500 hp if that makes a 
difference.   With 10 starts and stops automatically and 10 manually it'll take 
a week to do pump acceptance testing.

Chris Cahill, PE*
Associate Fire Protection Engineer
Burns & McDonnell
Phone:  952.656.3652
Fax:  952.229.2923
[email protected]<mailto:[email protected]>
www.burnsmcd.com<http://www.burnsmcd.com/>
*Registered in: MN

I'm not cantankerous I just express myself vividly. - Antonin Scalia


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