Lighting and Power Model Design Thinking and Details:
I modeled the lighting and power for the eastern wing. My design thinking was informed by a desire for accessibility and comfort for occupants. For the power modeling, this was achieved by evenly distributing receptacles and placing them at a convenient elevation to enable easier plug connectivity. For the lighting model, the strategy invoked was to note adopt a one-size-fits-all approach, instead, carefully selecting and positioning different lighting fixtures to meet the lighting needs of the different space types.
The rooms that received lighting and plug fixtures in the east wing are listed below:
- Classrooms
- Offices
- Open Office
- Atrium/Corridors
- Conference Room
- Gift Shop
Below are the relevant details associated with the lighting and power fixtures incorporated in the model:
- Power:
- Power Terminal: 208 V MCB
- 1 on each floor (located in mechanical rooms at 4’ elevation)
- Receptacles: 2 plugs
- elevation: 1’ 6”
- Lighting:
- Troffer Light 2x4 parabolic - 120V
- spaces: All rooms except private offices
- Scone light - uplight (100W - 120V)
- spaces: Private offices, L1 atrium, L2 corridor
- Standing Lamp:
- spaces: private offices, open office
Design Process:
- Circuits:
- In order to reduce the amount of load for a given circuit, I strategically divided the floor plan into a series of small but spatial cohesive circuits from which the surround fixtures were connected. Each circuit contains lighting fixtures, wall plugs, and switches. Below is a list of all the circuits modeled:
- Open Office
- private offices (1 circuit for each of the 4)
- Classrooms (1 for each of the 3)
- Atrium/Corridor (L1)
- Atrium/Corridor (L2)
- Gift Shop
- Conference Room
- Switches for the lights were placed by the doorway/entryway of each space. Spaces with two entryways were modeled with 3-way switches, with one switch placed near each door.
L1
L2
Analyzing Light Levels- Average Estimated Illumination
To analyze the illumination provided solely by the lighting fixtures, I used the analyze tab in Revit to define spaces and create a space schedule that included an average estimated illumination field. The elevation of the space was set to the ceiling height of the given floor/space (L1: 10’; L2: 14’). Below is a list of the target illumination (footcandles average) values for different space types present in this model.
- Office spaces: 40 fc
- Classrooms: 40 fc
- Meeting spaces: 40 fc
- Hallways: 25 fc
- Retail Spaces: 40 fc
The estimated results are in the image below.
The results suggest that the given lighting design is adequate, with the target illuminance (footcandles average) value being met for all space types with marginal deviation above or below the target value.