[Bldg-sim] 90.1-2010 Lighting Power Density question

Fri Jul 21 12:16:46 PDT 2017

Hi Christopher,
You would still consider it a corridor for Space-by-Space LPD determination. The <8' width criterion is for the RCR (Room Cavity Ratio). You can add 20% to the baseline LPD allowance for corridors if they are less than 8' wide, per 9.6.3. For corridors 8' or wider, use the standard LPD of 0.66 W/ft2.
Regards,
~Bill

William Bishop, PE, BEMP, BEAP, CEM, LEED AP | Pathfinder Engineers & Architects LLP
Senior Energy Engineer

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From: Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Jones, Christopher via Bldg-sim
Sent: Friday, July 21, 2017 2:55 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] 90.1-2010 Lighting Power Density question

90.1-2010, Lighting, Space-By-Space includes Corridor/Transition < 8' wide. What would you use if the corridor is greater than 8' wide or wider? It's now near an elevator so not Lobby for Elevator.

Christopher R. Jones, P.Eng.
Technical Specialist
Sustainability & Energy

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