Can de-lamping be acceptable to meet the Lighting Power Density Requirements?
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CI-2009 EAc1.1: Optimize Energy Performance—Lighting Power
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De-lamping
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Bill Swanson
Sr. Electrical EngineerIntegrated Design Solutions
LEEDuser Expert
734 thumbs up
March 25, 2014 - 2:09 pm
The fixtures wattage is based on the socket for incandescent fixtures. And based on the socket/ballast combination for the fluorescent and HID fixtures. Removing a lamp does not change this. You will have to remove the socket also.
Sunayana Jain
L&S Energy Services4 thumbs up
March 25, 2014 - 2:21 pm
Thank you Bill. In my case, I have 3 lamp 4 foot T5HO fixture of which one lamp is being removed which would reduce power drawn to overall fixture. So, this should reduce the Lighting Power Density. Right?
Bill Swanson
Sr. Electrical EngineerIntegrated Design Solutions
LEEDuser Expert
734 thumbs up
March 25, 2014 - 2:51 pm
As long as you also remove the lamp socket also. The fluorescent fixture should have 3 pairs of sockets. If you are removing one lamp then you should also remove one pair of sockets so that a lamp can't be easily added.