Emergency Power

[Nietz001]

Art 700 talks about Emergency systems other than health care buildings. Can anyone tell me what loads are permissable on this EM system? The FPN talks about systems that are legally required. What is legally required? How about a back up freezer for research?
Thanks in advance,
Jeff, University of Minnesota

 

[apjpe]

If you just want to back up a freezer, you don't have to follow the requirements of article 700 which is "Emergency Systems". You are not affecting any life safety systems (emergency lighting, egress lighting, etc.). If you wanted to consider the generator as an Emergency System where you were doing life safety systems, then you would have to follow all of article 700.

 

[charlie b]

What is "legally required"?

Whatever the "municipal, state, federal, or other codes" tell you is required. See 700.1.

But if you are not talking about a health care facility, then the NEC is not going to answer that question for you.

 

[muskiedog]

Jeff Minnesota

Jeff Minnesota

Life safety would be. Your freezer is not not part of emergency plans or proceudres for egress, fire safety, critical operations that if power is loss could cause catastrophic events. AHJ locally should be able to direct you on this.

Greg, Minnesota