There's a project in our jurisdiction that is a warehouse with a detached fire pump building.
They are proposing to feed the controller for the diesel fire pump (in the detached fire pump building) from the service in the main warehouse building.
Are there any relevant fire codes or standards that require the controller to be fed from a separate service?
Or, at least fed from a service that is "dedicated" to the fire pump building?
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2/16/2022 08:21:17 am
Yes, circuits supplying fire pumps are required to be protected in (1) of (4) ways per 2021 IBC per 913.2.2 Circuits supplying fire pumps :
2/16/2022 09:32:19 am
I'm not sure how chapter 9 could be applicable as that chapter is for "electric drive for pumps" and this question indicates this is a diesel (engine) driven pump. Chapter 12 "engine drive controllers would appear to be the applicable chapter to govern this specific installation arrangement, however, I don't really see any specifics in chapter 12 regarding the actual electrical arrangement for the controller. I would, however, see article 695 of the NEC (NFPA 70) to be applicable and would reference that with regards to the controller of the diesel engine driven fire pump.
2/18/2022 06:13:37 pm
this does not require it to be a dedicated service
2/16/2022 08:39:53 am
Arrangement of power, disconnects and other pertinent information is found in NFPA 20: 9.1*. The power needs to be before the buildings service breaker and an its own shut off needs to be in the pump room. also see NFPA 20: 126.96.36.199
2/16/2022 09:10:04 am
I am not sure if chapters 9 and 10 of NFPA 20 apply to electric service to the diesel fire pump controller. Chapter 12 is for "Engine Drive Controllers" and does not have any specfic language for a dedicated service connection. I would believe that an electrician might still use article 695 of NFPA 70, but I cannot find a direct reference.
2/16/2022 09:40:27 am
I misread the question. You are correct.
2/16/2022 02:47:40 pm
I'm not aware of any specific requirements in 20 for electrical service to a diesel driven fire pump controller. NEC or IBC may have some.
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