# Presentation: 259490

## Lighting Provisions

*Joseph G. Howley Jr. *
*GE Lighting*
*Immediate Past Chair, ASHRAE SSPC 90.1 **Lighting Subcommittee*

## Control credits are eliminated 

Control points are no longer used

Most exterior power requirements replaced with minimum efficacy (lumens/watt) requirements

**Control points are no longer used**
**Most exterior power requirements replaced with minimum efficacy (lumens/watt)**** ****requirements**

- 1989 vs. 1999

## 
Interior Power requirements updated

Requirements more stringent
No more area factor calculations
No more building size dependencies

**Interior Power requirements updated**
**Requirements more stringent**
**No more area factor calculations**
**No more building size dependencies**

- 1989 vs. 1999 (Cont’d)

## 9.1 General Application
9.2 Mandatory Provisions
9.3 Prescriptive Path 
Interior Lighting Power Allowance
Building Area Method
Space by Space Method
Exterior Lighting Power Allowance

- 9.2 Mandatory Provisions
- 9.3 Prescriptive Path
- Interior Lighting Power Allowance
- Building Area Method
- Space by Space Method
- Exterior Lighting Power Allowance

- Section 9

## Interior spaces of buildings
Exterior building features
Exterior grounds lighting powered through the building

- Exterior building features
- Exterior grounds lighting powered through the building

- Section 9.1 General Application

## Exceptions 
Emergency lighting
Lighting required by life safety statute
Lighting within living units of buildings
Decorative gas lighting

- Emergency lighting
- Lighting required by life safety statute
- Lighting within living units of buildings
- Decorative gas lighting

- Section 9.1 General Application (Cont’d)

## Lighting Alterations to Existing Buildings

**Replacement systems - comply with power density and control requirements**
**Exception:  Alterations that replace < 50% of the luminaires in a space**

## Automatic Lighting Shutoff
Programmable Whole Building Controller
Occupancy Sensors/Other
Allow occupant Intervention
Additional Separate Controls

- Programmable Whole Building Controller
- Occupancy Sensors/Other
- Allow occupant Intervention
- Additional Separate Controls

- Section 9.2 Mandatory Provisions Interior Controls

- Accent, Case, Task, Hotel Room, Non-visual, Demonstration

## Section 9.2.2 Tandem Wiring

## Tandem WiringExceptions

- Separated Surface or pendant luminaires
- Recessed luminaires more than 10 ft apart
- Other luminaires:
- With three-lamp ballasts
- On emergency lighting circuits
- With no available pair
- With one-lamp, high frequency, electronic ballast

## Section 9.2.3 Exit Signs

- Exit signs operating at greater than 20 watts shall have a minimum source efficacy of 35 lumens per watt

## Standard incandescent = max. labeled wattage of the luminaire
Luminaires with ballasts = wattage of the lamp/ballast combination
Line voltage track = min. 30 W per foot
Low voltage track = transformer wattage
All others as specified

- Luminaires with ballasts = wattage of the lamp/ballast combination
- Line voltage track = min. 30 W per foot
- Low voltage track = transformer wattage
- All others as specified

- Section 9.2.5 Luminaire Wattage

## Create Building Space Models to calculate power densities with:
Current product performance data
Updated efficacy and loss factors
New building construction data
IES recommended light levels
Professional lighting design consensus 

- Current product performance data
- Updated efficacy and loss factors
- New building construction data
- IES recommended light levels
- Professional lighting design consensus

- Lighting Power Development Concept

## Hospital                - 1.6 W/ft2
Library                  - 1.5 W/ft2
Manufacturing      - 2.2 W/ft2
Museum                - 1.6 W/ft2
Office                    - 1.3 W/ft2
Parking Garage     - 0.3 W/ft2
Retail                    - 1.9 W/ft2
School                  - 1.5 W/ft2

- Library                  - 1.5 W/ft2
- Manufacturing      - 2.2 W/ft2
- Museum                - 1.6 W/ft2
- Office                    - 1.3 W/ft2
- Parking Garage     - 0.3 W/ft2
- Retail                    - 1.9 W/ft2
- School                  - 1.5 W/ft2

- Building Area MethodLighting Power Densities

## Office Building
Office Enclosed      - 1.5 W/ft2
Office Open            - 1.3 W/ft2
 Conference            - 1.5 W/ft2
 Training                 - 1.6 W/ft2
 Lobby                    - 1.8 W/ft2
Lounge                   - 1.4 W/ft2
Dining                    - 1.4 W/ft2
Food Prep              - 2.2 W/ft2
Corridor                 - 0.7 W/ft2
Restroom               - 1.0 W/ft2
Active Storage       - 1.1 W/ft2

**Office Enclosed      - 1.5 W/ft****2**
**Office Open            - 1.3 W/ft****2**
** ****Conference            - 1.5 W/ft****2**
** ****Training                 - 1.6 W/ft****2**
** ****Lobby                    - 1.8 W/ft****2**
**Lounge                   - 1.4 W/ft****2**
**Dining                    - 1.4 W/ft****2**
**Food Prep              - 2.2 W/ft****2**
**Corridor                 - 0.7 W/ft****2**
**Restroom               - 1.0 W/ft****2**
**Active Storage       - 1.1 W/ft****2**

- Space by SpaceLighting Power Allowance

## Decorative - 1.0 W/ft2 in space used
Fluorescent designed to eliminate screen glare (IES RP1) - 0.35 W/ft2
Accent Lighting in specific space used
Additional 1.6 W/ft2 , or
Additional 3.9 W/ft2 for fine merchandise

- Fluorescent designed to eliminate screen glare (IES RP1) - 0.35 W/ft2
- Accent Lighting in specific space used
**Additional 1.6 W/ft****2 ****, or**
**Additional 3.9 W/ft****2**** for fine ****merchandise**

- Section 9.3.1.2.1 Additional Interior Lighting Power

## Exterior Controls/Building Grounds Lighting

- Automatic shutoff when sufficient daylight is available
- Photosensor
- Time switch
- Building grounds lamps > 100W = efficacy of 60 LPW (unless controlled by a motion sensor)

## Building Surface Requirements:

Building Entrance w/canopy - 3W/ft2
Building Entrance - 33 W/linear ft
Building Exit - 20 W/linear ft
Building Façades - 0.25 W/ft2

- Building Surface Requirements:
- Building Entrance w/canopy - 3W/ft2
- Building Entrance - 33 W/linear ft
- Building Exit - 20 W/linear ft
- Building Façades - 0.25 W/ft2

- Section 9.3.2 Exterior Building Lighting Power