A building complies with this section if:
i. The Calculation of Adjusted Indoor Lighting Power of all proposed building areas combined, calculated under Subsection (a) is no greater than the Calculation of Allowed Indoor Lighting Power, Specific Methodologies calculated under Subsection (c); and
ii. The Calculation of Allowed Indoor Lighting Power, General Rules comply with Subsection (b).
The prescriptive limits on indoor lighting power are the smaller of the Adjusted and Allowed Indoor Lighting Power values determined in accordance with item i.
Exception to Section 140.6(a): Up to 0.3 watts per square foot of portable lighting for office areas shall not be required to be included in the calculation of actual indoor lighting power.
For compliance with Part 6 a Nonprogrammable Double-Throw Switch is an electrical switch commonly called a "single pole double throw" or "three-way" switch that is wired as a selector switch allowing one of two loads to be enabled. It can be a line voltage switch or a low voltage switch selecting between two relays. It cannot be overridden or changed in any manner that would permit both loads to operate simultaneously.
When used for determining PAFs for general lighting in offices, furniture mounted luminaires that comply with all of the following conditions shall qualify as permanently installed general lighting systems:
Lighting intended for makeup, hair, and costume preparation in performing arts facility dressing rooms, provided that the lighting is separately switched from the general lighting system, switched independently at each dressing station, and is controlled with a Vacancy Sensor.
The allowed indoor lighting power allotment for general lighting for one area for which the Area Category Method was used may be increased up to the amount that the allowed indoor lighting power allotment for general lighting for another area using the Area Category Method or Tailored Method is decreased, except that such increases and decreases shall not be made between conditioned and unconditioned space.
The allowed indoor lighting power allotment for general lighting for one area for which the Tailored Method was used may be increased up to the amount that the allowed indoor power lighting for general lighting for another area is decreased, but only if the Tailored Method or Area Category Method was used for the other area, except that such increases and decreases shall not be made between conditioned and unconditioned space.
TYPE OF CONTROL | TYPE OF AREA | FACTOR | |
a. To qualify for any of the Power Adjustment Factors in this table, the installation shall comply with the applicable requirements in Section 140.6(a)2 b. Only one PAF may be used for each qualifying luminaire unless combined below. c. Lighting controls that are required for compliance with Part 6 shall not be eligible for a PAF | |||
1. Daylight Continuous Dimming plus OFF Control | Luminaires in skylit daylit zone or primary sidelit daylit zone or secondary sidelit daylit zone | 0.10 | |
2. Occupant Sensing Controls in Offices Larger than 250 square feet | One sensor controlling an area that is: | No larger than 125 square feet | 0.30 |
From 126 to 250 square feet | 0.20 | ||
3.Institutional Tuning | Luminaires in non-daylit areas. Luminaires that qualify for other PAFs in this table may also qualify for this tuning PAF. | 0.10 | |
Luminaires in daylit areas. Luminaires that qualify for other PAFs in this table may also qualify for this tuning PAF. | 0.05 | ||
4. Demand Responsive Control | General lighting luminaires not in the scope of Section 110.12(c) . Luminaires that qualify for other PAFs in this table may also qualify for this demand responsive control PAF | 0.05 | |
5. Clerestory Fenestration | Luminaires in daylit areas adjacent to the clerestory. Luminaires that qualify for daylight dimming plus OFF control may also qualify for this PAF. | 0.05 | |
6. Horizontal Slats | Luminaires in daylit areas adjacent to vertical fenestration with interior or exterior horizontal slats. Luminaires that qualify for daylight dimming plus OFF control may also qualify for this PAF. | 0.05 | |
7. Light Shelves | Luminaires in daylit areas adjacent to clerestory fenestration with interior or exterior light shelves. This PAF may be combined with the PAF for clerestory fenestration. Luminaires that qualify for daylight dimming plus OFF control may also qualify for this PAF... | 0.10 |
TYPE OF BUILDING
|
ALLOWED LIGHTING POWER DENSITY (WATTS PER SQUARE FOOT)
|
Assembly Building
|
0.65
|
Bank or Financial Institution Building
|
0.65
|
Grocery Store Building
|
0.90
|
Gymnasium Building
|
0.60
|
Healthcare Facility
|
0.90
|
Industrial/Manufacturing Facility Building
|
0.60
|
Library Building
|
0.70
|
Motion Picture Theater Building
|
0.60
|
Museum Building
|
0.65
|
Office Building
|
0.60
|
Parking Garage Building
|
0.13
|
Performing Arts Theater Building
|
0.75
|
Religious Facility Building
|
0.70
|
Restaurant Building
|
0.65
|
Retail Store Building
|
0.90
|
School Building
|
0.60
|
Sports Arena Building
|
0.75
|
All other buildings
|
0.40
|
Primary Function Area | Allowed Lighting Power Density for General Lighting (W/ft2 ) | Additional Lighting Power | ||
Qualified Lighting Systems | Additional Allowance (W/ft², unless noted otherwise) | |||
Aging Eye/Low-vision11 | Corridor Area | 0.70 | Decorative/Display | 0.30 |
Dining | 0.80 | Decorative/Display | 0.30 | |
Tunable white or dim-to-warm10 | 0.10 | |||
Lobby, Main Entry | 0.85 | Decorative/Display | 0.30 | |
Transition Lighting OFF at night12 | 0.95 | |||
Tunable white or dim-to-warm10 | 0.10 | |||
Lounge/Waiting Area | 0.80 | Decorative/Display | 0.30 | |
Tunable white or dim-to-warm10 | 0.10 | |||
Multipurpose Room | 0.85 | Decorative/Display | 0.30 | |
Tunable white or dim-to-warm 10 | 0.10 | |||
Religious Worship Area | 1.00 | Decorative/Display | 0.30 | |
Tunable white or dim-to-warm10 | 0.10 | |||
Restroom | 1.00 | Decorative/Display | 0.20 | |
Stairwell | 0.80 | Decorative/Display | 0.30 | |
Audience Seating Area | 0.50 | Decorative/Display | 0.25 | |
Auditorium Area | 0.70 | Decorative/Display | 0.45 | |
Auto Repair / Maintenance Area | 0.55 | Detailed Task Work7 | 0.20 | |
Barber, Beauty Salon, Spa Area | 0.70 | Detailed Task Work7 | 0.30 | |
Decorative/Display | 0.25 | |||
Civic Meeting Place Area | 0.90 | Decorative/Display | 0.25 | |
Classroom, Lecture, Training, Vocational Area | 0.60 | White or Chalk Board1 | 7 W/ft | |
Concourse and Atria Area | 0.60 | Decorative/Display | 0.25 | |
Convention, Conference, Multipurpose and Meeting Area | 0.75 | Decorative/Display | 0.25 | |
Copy Room | 0.50 | - | - | |
Corridor Area | 0.40 | Decorative/Display | 0.25 | |
Dining Area | Bar/Lounge and Fine Dining | 0.45 | Decorative/Display | 0.35 |
Cafeteria/Fast Food | 0.45 | Decorative/Display | 0.25 | |
Family and Leisure | 0.40 | Decorative/Display | 0.25 | |
Electrical, Mechanical, Telephone Rooms | 0.40 | Detailed Task Work7 | 0.20 | |
Exercise/Fitness Center and Gymnasium Area | 0.50 | - | - | |
Financial Transaction Area | 0.70 | Decorative/Display | 0.25 | |
Healthcare Facility and Hospitals | Exam/Treatment Room | 1.15 | - | - |
Imaging Room | 0.60 | Decorative/Display | 0.20 | |
Tunable white or dim-to-warm10 | 0.10 | |||
Medical Supply Room | 0.55 | - | - | |
Nursery | 0.80 | Tunable white or dim-to-warm 10 | 0.10 | |
Nurse’s Station | 0.85 | Tunable white or dim-to-warm 10 | 0.10 | |
Detailed Task Work7 | 0.20 | |||
Operating Room | 1.90 | - | - | |
Patient Room | 0.70 | Decorative/Display | 0.15 | |
Tunable white or dim-to-warm10 | 0.10 | |||
Physical Therapy Room | 0.75 | Tunable white or dim-to-warm10 | 0.10 | |
Recovery Room | 0.90 | Tunable white or dim-to-warm10 | 0.10 | |
Hotel Function Area | 0.85 | Decorative/Display | 0.25 | |
Kitchen/Food Preparation Area | 0.95 | - | - | |
Laboratory, Scientific | 0.90 | Specialized Task Work8 | 0.35 | |
Laundry Area | 0.45 | - | - | |
Library | Reading Area | 0.80 | Decorative/Display | 0.25 |
Stacks Area | 1.00 | - | - | |
Lobby, Main Entry | 0.70 | Decorative/Display | 0.25 | |
Locker Room | 0.45 | - | - | |
Lounge, Breakroom, or Waiting Area | 0.55 | Decorative/Display | 0.25 | |
Manufacturing, Commercial & Industrial Work Area | Low Bay | 0.60 | Detailed Task Work7 | 0.20 |
High Bay | 0.65 | Detailed Task Work7 | 0.20 | |
Precision | 0.85 | Precision Specialized Work9 | 0.70 | |
Museum Area | Exhibition/Display | 0.60 | Decorative/Display | 0.45 |
Restoration Room | 0.70 | Detailed Task Work7 | 0.35 | |
Office Area | > 250 square feet | 0.60 | Decorative/Display and Portable lighting for office areas6 | 0.20 |
≤ 250 square feet | 0.65 | |||
Parking Garage Area | Parking Zone and Ramps | 0.10 | First ATM or Ticket Machine | 100 W |
Additional ATM or Ticket Machine | 50 W each | |||
Daylight Adaptation Zones2 | 1.00 | - | - | |
Pharmacy Area | 1.00 | Specialized Task Work8 | 0.35 | |
Retail Sales Area | Grocery Sales | 1.00 | - | - |
Decorative/Display | 0.35 | |||
Retail Merchandise Sales | 0.95 | - | - | |
Decorative/Display | 0.35 | |||
Fitting Room | 0.60 | External Illuminated Mirror5 | 40 W/ea | |
Internal Illuminated Mirror5 | 120 W/ea | |||
Religious Worship Area | 0.95 | Decorative/Display | 0.25 | |
Restrooms | 0.65 | Decorative/Display | 0.35 | |
Stairwell | 0.60 | Decorative/Display | 0.35 | |
Storage, Commercial/Industrial | Warehouse | 0.40 | - | - |
Shipping & Handling | 0.60 | - | - | |
Sports Arena – Playing Area | Class I Facility13 | 2.25 | - | - |
Sports Arena – Playing Area | Class II Facility13 | 1.45 | - | - |
Sports Arena – Playing Area | Class III Facility13 | 1.10 | - | - |
Sports Arena – Playing Area | Class IV Facility13 | 0.75 | - | - |
Theater Area | Motion picture | 0.50 | Decorative/Display | 0.25 |
Theater Area | Performance | 0.80 | Decorative/Display | 0.25 |
Transportation Function | Baggage Area | 0.40 | - | - |
Ticketing Area | 0.45 | Decorative/Display | 0.20 | |
Videoconferencing Studio | 0.90 | Videoconferencing14 | 1.00 | |
All other | 0.40 | - | - | |
Footnotes for this table are listed below. 1. White board or chalk board. – Directional lighting dedicated to a white board or chalk board. 2. Daylight Adaptation Zones shall be no longer than 66 feet from the entrance to the parking garage. 3. Reserved 4. Reserved 5. Illuminated mirrors. Lighting shall be dedicated to the mirror. 6. Portable lighting in office areas includes under shelf or furniture-mounted supplemental task lighting qualifies when controlled by a time clock or an occupancy sensor. 7. Detailed task work – Lighting provides high level of visual acuity required for activities with close attention to small elements and/or extreme close up work. 8. Specialized task work – Lighting provides for small-scale, cognitive or fast performance visual tasks; lighting required for operating specialized equipment associated with pharmaceutical/laboratorial activities. 9. Precision specialized work – Lighting for work performed within a commercial or industrial environment that entails working with low contrast, finely detailed, or fast moving objects. 10. Tunable white luminaires capable of color change greater than or equal to 2000K CCT, or dim-to-warm luminaires capable of color change greater than or equal to 500K CCT, connected to controls that allows color changing of the luminaires. 11. Aging Eye/Low-vision areas can be documented as being designed to comply with the light levels in ANSI/IES RP-28 and are or will be licensed by local or state authorities for either senior long-term care, adult day care, senior support, and/or people with special visual needs. 12. Transition lighting OFF at night. Lighting power controlled by astronomical time clock or other control to shut off lighting at night. Additional LPD only applies to area within 30 feet of an exit. Not applicable to lighting in daylit zones. 13. Class I Facility is used for competition play for 5000 or more spectators. Class II Facility is used for competition play for up to 5000 spectators. Class III Facility is used for competition play for up to 2000 spectators. Class IV Facility is normally used for recreational play and there is limited or no provision for spectators. 14. The additional videoconferencing lighting power shall be allowed provided the videoconferencing studio meets all the requirements of Section 140.6(c)2Gvii. |
1 | 2 | 3 | 4 | 5 |
Primary Function Area | General Illumination Level (Lux) | Wall Display Lighting Power Density (W/ft) | Allowed Combined Floor Display Power and Task Lighting Power Density (W/ft²) | Allowed Decorative/ Special Effect Lighting Power Density (W/ft²) |
Auditorium Area | 300 | 3.00 | 0.20 | 0.35 |
Convention, Conference, Multipurpose, and Meeting Center Areas | 300 | 2.00 | 0.30 | 0.35 |
Dining Areas | 200 | 1.25 | 0.45 | 0.35 |
Exhibit, Museum Areas | 150 | 11.20 | 0.70 | 0.35 |
Hotel Area: | ||||
Ballroom/Events | 400 | 1.80 | 0.12 | 0.35 |
Lobby | 200 | 3.40 | 0.20 | 0.35 |
Lobby, Main entry | 200 | 3.40 | 0.20 | 0.35 |
Religious Worship Area | 300 | 1.30 | 0.40 | 0.35 |
Retail Sales | ||||
Grocery | 600 | 6.60 | 0.60 | 0.35 |
Merchandise Sales, and Showroom Areas | 500 | 11.50 | 0.70 | 0.35 |
Theater Area: | ||||
Motion picture | 200 | 2.00 | 0.20 | 0.35 |
Performance Arts | 200 | 7.30 | 0.20 | 0.35 |
Height in feet above finished floor and bottom of luminaire(s) | Floor Display or Wall Display Mounting Height Adjustment Factor |
≤ 10’-6” | 1.00 |
> 10’-6” to 14’-0” | 0.85 |
>14’-0” to 18’-0” | 0.75 |
> 18’-0” | 0.70 |
Determine the Room Cavity Ratio for TABLE 140.6-G using one of the following equations.
Room cavity ratio for rectangular rooms
Room cavity ratio for irregular-shaped rooms
General Illuminance Level (lux)a | RCR ≤ 2.0 | RCR > 2.0 and ≤ 3.5 | RCR > 3.5 and ≤ 7.0 | RCR > 7.0 |
150 | 0.35 | 0.40 | 0.50 | 0.65 |
200 | 0.40 | 0.50 | 0.65 | 0.85 |
300 | 0.55 | 0.70 | 0.85 | 1.20 |
400 | 0.65 | 0.80 | 1.05 | 1.25 |
500 | 0.80 | 0.90 | 1.25 | 1.55 |
600 | 0.90 | 1.05 | 1.40 | 2.00 |
a Illuminance values from Column 2 of TABLE 140.6-D. b RCR values are calculated using applicable equations in TABLE 140.6-F . |
Note: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code. Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5, 25402.8, and 25943, Public Resources Code.