NEC 700, 701, 702

Status
Not open for further replies.

Shujinko

Senior Member
I have a renovation project currently in the design phase that is a small business occupancy, single story, approximately 7,000 square feet. The building code does not require this type of occupancy to have an emergency generator. However, the owner wants the entire building to be on standby emergency generator power. Currently there is provisions for only 1 ATS. My question is, even though the building code does not require this building to have a generator and its only being provided per the owner's request, wouldn't you still have to comply with NEC 700, 701, 702 as far as providing at least 2 ATS's to separate emergency, legally required standby, and optional loads per NEC 700, 701, 702?

The building code pertinent to this project would be the Florida Building Code.
 
Look at your definitions, 700.2, 701.2, 702.2.

Seems that only 702.2 applies.

702.2 Definition.
Optional Standby Systems.
Those systems intended to supply power to public or private facilities or property
where life safety does not depend on the performance of the
system. These systems are intended to supply on-site gen-
erated power to selected loads either automatically or
manually.
 
I have a renovation project currently in the design phase that is a small business occupancy, single story, approximately 7,000 square feet. The building code does not require this type of occupancy to have an emergency generator. However, the owner wants the entire building to be on standby emergency generator power. Currently there is provisions for only 1 ATS. My question is, even though the building code does not require this building to have a generator and its only being provided per the owner's request, wouldn't you still have to comply with NEC 700, 701, 702 as far as providing at least 2 ATS's to separate emergency, legally required standby, and optional loads per NEC 700, 701, 702?

The building code pertinent to this project would be the Florida Building Code.

Often the least expensive solution is to provide an entire building optional standby system and just use battery units for the required egress lighting.

The only other option is as you said separate ATS and distribution. I doubt you would have any 701 loads so two transfer switches.
 
Look at your definitions, 700.2, 701.2, 702.2.

Seems that only 702.2 applies.

702.2 Definition.
Optional Standby Systems.
Those systems intended to supply power to public or private facilities or property
where life safety does not depend on the performance of the
system. These systems are intended to supply on-site gen-
erated power to selected loads either automatically or
manually.

The building will have a fire alarm system and egress lighting both will have battery back-up, so playing devil's advocate here, wouldn't this invoke the requirement in the definition of emergency systems 700.2, Especially where it says "These systems are intended to automatically supply illumination, power, or both, to designate areas and equipment in the event of failure of the normal supply or in the event of accident to elements of a system intended to supply, distribute, and control power and illumination for safety to human life."?
 
Status
Not open for further replies.
Top