[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
GBlist: Fluorescent Lights: off or on?
John:
When adjusting the time delay period for office lighting occupancy
sensors, common practice in the industry today is to use a 5 to 7 minute
delay before turning the fixtures off.
This is what most manufacturer field sales reps will advise. I have
specified these values with good results and no ""apparant"" premature
equipment failures. I'm speaking of the electranic ballasts, T-8
florescent fixtures.... typical modern high efficiency lamps.
Once I questioned a manufacturer about the basis of the delay
recomendations. They cited testing and studies, which I can no longer
recall, from industry trade accociations whose names were well known.
Tom Anderson
______________________________________________________________________
This greenbuilding dialogue is sponsored by CREST <www.crest.org>
Environmental Building News <www.ebuild.com> and Oikos <www.oikos.com>
For instructions send e-mail to greenbuilding-request@crest.org.
______________________________________________________________________