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Old 02-23-2018, 01:30 PM   #1
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Default Legally required standby system

Where can I find out whether or not a generator is required by law? NFPA 110-2010 addresses the performance but not if its required.

Is this a State fire marshal issue? I've looked at our State Marshall's page and I'm coming up blank.
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Old 02-23-2018, 01:41 PM   #2
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Don't know but welcome back.
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Old 02-23-2018, 02:04 PM   #3
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It's been awhile since I looked, but NEC Article 700 is the first place to start.
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Old 02-23-2018, 02:34 PM   #4
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First off they are legally required when the local code or government requirements say so.

Outside of that I have seen them required in for smoke control systems and for elevators if the elevators are listed as the means of building egress and to power any system that loss of power would create a life/safety hazard.

I believe it NFPA 701.2 that has the list.
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Old 02-23-2018, 02:37 PM   #5
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This is like hazardous locations. The electrical codes give the rules for dealing with it. Other codes determine if it is required. PSM (chemical plant safety), NERC (power plant regulations), and NFPA hospital codes are three places it comes up.


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Old 02-23-2018, 02:38 PM   #6
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Originally Posted by nolabama View Post
Where can I find out whether or not a generator is required by law? NFPA 110-2010 addresses the performance but not if its required.

Is this a State fire marshal issue? I've looked at our State Marshall's page and I'm coming up blank.
If your State/municipality adopts the International Building Code, take a look at Chapter 27.
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Old 02-23-2018, 03:30 PM   #7
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Probably NFPA 101, but even then the state or local government would have to adopt the code.

Places like hospitals determine the use for an area, then the codes are dictated from that.
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Old 02-23-2018, 07:47 PM   #8
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What are you trying to back up?
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Old 02-24-2018, 02:22 AM   #9
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I'll suggest OP contact the local bldg & fire dep'ts and ask them what standards they use to determine when standby or emergency power is required.

Each jurisdiction can be different. If healthcare is involved there will be a state agency on health care. For elevators there is usually a state elevator agency. Building code, life safety code, state amendments, local amendments, essential facilities, critical facilities, etc. There is no boiler plate answer to the question.

Post Irma we now require assisted living facilities statewide to have standby power for the A/C sufficient to run 2 weeks I believe.
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Old 02-24-2018, 05:39 AM   #10
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Quote:
Originally Posted by nolabama View Post
Where can I find out whether or not a generator is required by law? NFPA 110-2010 addresses the performance but not if its required.

Is this a State fire marshal issue? I've looked at our State Marshall's page and I'm coming up blank.
I Know you will scroll all those info above me and yes those guys did gave you a good starting point for the requirement.

Also it will mention in NEC art 700 for the standby requirement and there is two maybe three parts you will have to read. ( 700 , 701 , 702 and see which one will fit the requirement plus other as other members posted there )

also you will have to take a good look at the customer site to see what type of generator ( Natural gas or LP gas or Diesel fueled )

And type of load it need to be on generator source.
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Old 02-24-2018, 02:39 PM   #11
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Besides NEC 700 I would start with what you're looking to back-up.
Fire alarm system, egress lighting, healthcare, fire related dampers, doors, fans, locks, or? Start with the particular topic.
Back up could be as simple as a small internal battery to a diesel gen set.
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Old 02-26-2018, 07:06 AM   #12
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Thanks for the information. Seems like NFPA 101-201X is going to have most of what I want and need. Meanwhile the internet is a wonderful place. These dirtbags have a manual online to assist in crucifiing electricals and not paying business owners....

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Old 02-26-2018, 07:29 AM   #13
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I always ask people what they are trying to back up and find out whether its required or optional. Also changes what type of generator they'd buy. I can get the "industrial units" but can't provide warranty service on them. For those few we do, we pair up with an industrial dealer for start up and hand off the service to them. Works well that way.
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Old 02-26-2018, 08:06 AM   #14
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It’s not just Hartford. FM has their own Code. It’s full of some good and some really out of date stuff. Once you find “the code” you look like a genius because their inspectors are pushovers compared to local Code inspectors. Once I found their rule books it’s no different and easy to breeze through inspections.


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Old 02-26-2018, 02:09 PM   #15
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NEC Article 701
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Old 02-27-2018, 10:57 AM   #16
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A legally required system is one required by law but not required to transfer and pick up the load in 10 seconds. In very large projects you will have one Emergency System Art. 700 and one Art. 701 Legally Required Standby system. The standby system will power up loads, not classified as emergency, like stairwell pressurization, smoke control, and elevators and max time allowed is 60 seconds. High rise buildings sometimes have several Emergency and Legally Required generators. If they have an atrium with a food court the smoke control system can be quite extensive
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