The Usefulness of Bi-Level Switching
| Date Published |
11/1998
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|---|---|
| Publication Type | Report
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| Author | |
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| LBL Report Number |
LBNL-44281
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| Abstract |
California's Title 24 Energy Efficiency Building Standard requires multiple lighting level control in all individual offices. Usually, this requirement is fulfilled using bi-level switching. With bi-level switching, each office occupant is provided with two wall switches near the doorway to control their lights. In a typical installation, one switch would control 1/3 of the fluorescent lamps in the ceiling lighting system, while the other switch would control the remaining 2/3 of the lamps. This allows four possible light levels: OFF, 1/3, 2/3 and FULL lighting. |
| Notes |
Original Technical Note: November 1998. Revised August 1999 |
| Year of Publication |
1998
|
| Other Numbers |
LG-215
|
| Custom 1 |
<p>Lighting Systems Group</p>
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