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Fire Pump Transfer Switch

jar546

jar546

CBO
Joined
Oct 16, 2009
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Not where I really want to be
A building is being converted from an old factory to apartments. A new sprinkler system is being installed. The fire pump room and associated equipment is located on the NW corner of the building. There is a standby generator located in the rear, on the SE corner of the building that has 3 transfer switches located right next to it. You are being asked to install a transfer switch for the fire pump next to the existing transfer switches. Can you do that?
 
as long as the wiring to and form the transfer switch maintains the required rating in hours for the length of the conduit path, could be up to 2 hours as I recall, maybe reduce to 1 hour in a fully sprinkled building
 
TheCommish said:
as long as the wiring to and form the transfer switch maintains the required rating in hours for the length of the conduit path, could be up to 2 hours as I recall, maybe reduce to 1 hour in a fully sprinkled building
Click to expand...
That is one aspect but not the one we are looking for.
 
The transfer switch has to be at the fire pump controller, which is in the pump room. It depends upon what version of NFPA 20 you are under. Some versions require the fire pump controller and ATS to be within the same unit.
 
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