Transfer Switches for Fire Pumps
Transfer Switches for Fire Pumps
(OP)
Me again. Same fire pump. I was doing the flow testing, and during the 150% flow we shut the fire pump controller down to simulate the power failure and operate the transfer switch. There was no transfer and it appears that the fire pump transfer switch has somehow been run through the building transfer switch which has been temporarily disabled, which in turn has disabled the fire pump transfer switch. Now I can't find it off hand because I'm not sure if it's in 20 or 70, but I'm pretty sure that the fire pump transfer switch has to be totally independent of the building transfer switch ... or any other device for that matter. Can anyone quote a code and section for me quick....
Also, as an aside.... what do you make of 20 / 10.5.1.2 'An automatic controller shall be pressure switch actuated or nonpressure switch actuated'. Wouldn't it be simpler to say an automatic controller shall be actuated? ... Just saying.
Regards
D
Also, as an aside.... what do you make of 20 / 10.5.1.2 'An automatic controller shall be pressure switch actuated or nonpressure switch actuated'. Wouldn't it be simpler to say an automatic controller shall be actuated? ... Just saying.
Regards
D





RE: Transfer Switches for Fire Pumps
How do you expect ATS to transfer upon shutting off the controller? How did you shut it off?
FP-ATS can be fed from a building ATS. It still has to have alternate source.
Rafiq Bulsara
http://www.srengineersct.com
RE: Transfer Switches for Fire Pumps
RE: Transfer Switches for Fire Pumps
You need to get some professional help or ask a senior engineer in your company.
Rafiq Bulsara
http://www.srengineersct.com
RE: Transfer Switches for Fire Pumps
No one will touch me....