lighting sensors

[stafelectric@yahoo.com]

Does anyone have any information or code reference on mandatory occupancy sensors in a commercial building.

 

[chris kennedy]

See Chapter 13 of the Florida Building Code. In a nutshell, any commercial building 5000ft? and up needs to comply.

 

[Mgraw]

The code is by state or local jurisdiction. I think Florida follows IECC.

 

[Nickarus]

IECC and ASHRAE 90.1 (and by extension, LEED) all require automatic shutoff to one extent or another for spaces where security/safety isn't compromised. Occ sensors are one method of compliance. I'm not Californian but T24 has similar requirements to my general knowledge.

Specifics depend on the year enforced for any of the above, and indeed if one of those standards do apply.

 

[chris kennedy]

The FBC is actually ?ICC. Here is the interior lighting requirement. Note exception 3. I use this when the EE puts OS's in electric rooms.

13-415.ABC.1 Controls.

13-415.ABC.1.1 Automatic lighting controls. Interior
lighting in buildings larger than 5,000 square feet (465
m2) shall be controlled with an automatic control device
to shut off building lighting in all spaces. This automatic
control device shall function on either:

1. A scheduled basis using a time-of-day operated
control device that turns lighting off at specific
programmed times?an independent program
schedule shall be provided for areas of no more than 25,000 square feet (2323 m2) but not more
than one floor.

2. An occupant sensor that shall turn lighting off
within 30 minutes of an occupant leaving a space.

3. A signal from another control or alarm system that
indicates the area is unoccupied.

Exceptions: The following shall not require an automatic
control device.

a. Lighting intended for 24-hour operation.
b. Lighting in spaces where patient care is rendered.
c. Spaces where an automatic shutoff would endanger
the safety or security of the room?s or building?s
occupant(s).