Our project is a 16-bed hospice facility. The project site does not have a municipal water supply. The project is under NFPA 13, mostly Light Hazard, and an ancillary storage space in the basement is Ordinary Hazard.
We've designed a water storage tank which is buried outside. The discharge of the tank is approximately 5-feet above the suction side of a fire pump supplying the sprinkler system.
I've designated the pump as a sprinkler booster pump and supplied power from an emergency MDP (main disconnect panel). The electrician is asking for a few details concerning the pump designation.
Is the fire pump required to have a separate service with a dedicated ATS (automatic transfer switch)?
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6/1/2022 08:08:57 am
ATS - not required unless multiple feeds are required in order to meet reliability requirements as set forth by the NEC and/or local AHJ.
6/1/2022 08:24:16 am
Agree with Glenn here. Its an AHJ issue. An ATS isn't necessarily required unless the AHJ says so. But I confess I'm not really sure what you mean by pump "designation".
Todd E Wyatt
6/1/2022 08:29:24 am
2021 IBC requires the "circuits supplying fire pumps" to be protected in (1) of (4) methods :
6/1/2022 08:43:23 am
Maybe someone can help me out here, cause my code searching this morning is drawing a blank.
6/1/2022 09:00:41 am
Ok, think I found it, though it's not as detailed as I'd like.
6/1/2022 08:43:43 am
Dedicated service is required for electrical fire pumps.
6/1/2022 02:09:16 pm
6/26/2022 05:36:01 pm
Look at NEC section 695. Fire pumps have thier own section. Remind your electrical inspector and discus it with them prior to committing to a requirement.
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