Section 140.6 Prescriptive Requirements for Indoor Lighting
A building complies with this section if:
- 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
- The calculation of allowed indoor lighting power, general rules comply with Subsection (b); and
- General lighting complies with the automatic daylighting controls in secondary daylit zone requirements in Subsection (d).
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.
- An installation certificate is submitted in accordance with Section 130.4(b), and
- Luminaires and controls meet the applicable requirements of Section 110.9, and Sections 130.0 through 130.5; and
- The furniture mounted luminaires shall be permanently installed no later than the time of building permit inspection; and
- The furniture mounted luminaires shall be permanently hardwired; and
- The furniture mounted lighting system shall be designed to provide indirect general lighting; and
- Before multiplying the installed watts of the furniture mounted luminaire by the applicable PAF, 0.3 watts per square foot of the area illuminated by the furniture mounted luminaires shall be subtracted from installed watts of the furniture mounted luminaires; and
- The lighting control for the furniture mounted luminaire complies with all other applicable requirements in Section 140.6(a)2.
- At least 50 percent of the light output of the controlled luminaire is within the applicable area listed in Table 140.6-A. Luminaires on lighting tracks shall be within the applicable area in order to qualify for a PAF.
- Only one PAF from Table 140.6-A may be used for each qualifying luminaire. PAFs shall not be added together unless allowed in Table 140.6-A.
- Only lighting wattage directly controlled in accordance with Section 140.6(a)2 shall be used to reduce the installed watts as allowed by Section 140.6(a)2 for calculating the Adjusted Indoor Lighting Power. If only a portion of the wattage in a luminaire is controlled in accordance with Section 140.6(a)2, then only that portion of controlled wattage may be reduced in calculating adjusted indoor lighting power.
- Lighting controls used to qualify for a PAF shall be designed and installed in addition to manual, multilevel, and automatic lighting controls required in Section 130.1, and in addition to any other lighting controls required by any provision of Part 6. PAFs shall not be available for lighting controls required by Part 6.
- To qualify for the PAF for daylight dimming plus OFF control, the daylight control and controlled luminaires shall comply with Section 130.1(d), 130.4(a)3 and 130.4(a)7, and shall additionally turn lights completely OFF when the daylight available in the daylit zone is greater than 150 percent of the illuminance received from the general lighting system at full power. The PAF shall apply only to the luminaires in the primary sidelit daylit zone and the skylit daylit zone.
- The open plan office area shall be greater than 250 square feet; and
- This PAF shall be available only in office areas which contain workstations; and
- Controlled luminaires shall only be those that provide general lighting directly above the controlled area, or furniture mounted luminaires that comply with Section 140.6(a)2 and provide general lighting directly above the controlled area; and
- Infrared sensors shall be equipped by the manufacturer, of fitted in the field by the installer, with lenses or shrouds to prevent them from being triggered by movement outside of the controlled area.
- Ultrasonic sensors shall be tuned to reduce their sensitivity to prevent them from being triggered by movements outside of the controlled area.
- All other sensors shall be installed and adjusted as necessary to prevent them from being triggered by movements outside of the controlled area.
- The lighting controls shall limit the maximum output or maximum power draw of the controlled lighting to 85 percent or less of full light output or full power draw; and
- The means of setting the limit is accessible only to authorized personnel; and
- The setting of the limit is verified by the acceptance test required by Section 130.4(a)7; and
- The construction documents specify which lighting systems shall have their maximum light output or maximum power draw set to no greater than 85 percent of full light output or full power draw.
- The building shall be 10,000 square feet or smaller; and
- The controlled lighting shall be capable of being automatically reduced in response to a demand response signal; and
- Lighting shall be reduced in a manner consistent with uniform level of illumination requirements in Table 130.1-A; and
- Spaces that are nonhabitable shall not be used to comply with this requirement, and spaces with a lighting power density of less than 0.5 watts per square foot shall not be counted toward the building's total lighting power.
- To qualify for the PAFs for clerestory fenestration, horizontal slats, or light shelves in Table 140.6-A, the daylighting design shall meet the requirements in Section 140.3(d). The PAFs shall only apply to lighting in a primary or secondary sidelit daylit zone where continuous dimming daylighting controls meeting the requirements of Section 130.1(d) are installed.
- In theme parks: lighting for themes and special effects;
- Studio lighting for film or photography, provided that these lighting systems are in addition to and separately switched from a general lighting system;
- In civic facilities, transportation facilities, convention centers and hotel function areas: lighting for temporary exhibits, if the lighting is in addition to a general lighting system, and is separately controlled from a panel accessible only to authorized operators;
- Lighting installed by the manufacturer in walk-in coolers or freezers, vending machines, food preparation equipment, and scientific and industrial equipment;
- In office buildings with medical and clinical areas and healthcare facilities, examination and surgical lights, low ambient night lights and lighting integral to medical equipment, provided that these lighting systems are additions to and separately switched from a general lighting system;
- Lighting for plant growth or maintenance if it is controlled by a multilevel astronomical timeswitch control that complies with the applicable provisions of Section 110.9;
- Lighting equipment that is for sale;
- Lighting demonstration equipment in lighting education facilities;
- Lighting that is required for exit signs subject to the CBC. Exit signs shall meet the requirements of the Appliance Efficiency Regulations;
- Exitway or egress illumination that is normally off and that is subject to the CBC;
- In hotel/motel buildings, lighting in guest rooms (lighting in hotel/motel guestrooms shall comply with Section 130.0(b). (Indoor lighting not in guestrooms shall comply with all applicable nonresidential lighting requirements in Part 6.)
- In high-rise residential buildings, lighting in dwelling units (lighting in high-rise residential dwelling units shall comply with Section 130.0(b). (Indoor lighting not in dwelling units shall comply with all applicable nonresidential lighting requirements in Part 6.)
- Temporary lighting systems. (As defined in Section 100.1.)
- Lighting in occupancy group U buildings less than 1,000 square feet;
- Lighting in unconditioned agricultural buildings less than 2,500 square feet;
- Lighting systems in qualified historic buildings, as defined in the California Historical Building Code (Title 24, Part 8), are exempt from the lighting power density allowances, if they consist solely of historic lighting components or replicas of historic lighting components. If lighting systems in qualified buildings contain some historic lighting components or replicas of historic components, combined with other lighting components, only those historic or historic replica components are exempt. All other lighting systems in qualified historic buildings shall comply with the lighting power density allowances;
- Lighting in nonresidential parking garages for seven or less vehicles: Lighting in nonresidential parking garages for seven or less vehicles shall comply with the applicable residential parking garage provisions of Section 150.0(k).
- Lighting for signs: Lighting for signs shall comply with Section 140.8.
- Lighting in refrigerated cases less than 3,000 square feet. (Lighting in refrigerated cases less than 3,000 square feet shall comply with the Title 20 Appliance Efficiency Regulations).
- Lighting in elevators where the lighting meets the requirements in Section 120.6(f).
- Lighting connected to a Life Safety Branch or Critical Branch, as specified in Section 517 of the California Electrical Code.
- Luminaire classification and power shall be determined in accordance with Section 130.0(c).
- Small aperture. Qualifying luminaires longer than 18 inches shall be no wider than four inches. Qualifying luminaires with a length of 18 inches or less shall be no wider than eight inches.
- Color changing. qualifying tunable-white luminaires shall be capable of a color change greater than or equal to 2,000 Kelvin correlated color temperature (CCT). Qualifying dim-to-warm luminaires shall be capable of color change greater than or equal to 500 Kelvin CCT.
- Controls. Qualifying luminaires shall be connected to controls that allows color changing of the luminaires.
- Tailored method display lighting mounting height lighting power adjustment. For wall display luminaires or floor display luminaires meeting Tailored Method Section 140.6(c)3G and H and where the bottom of luminaires are 10 feet 7 inches and greater above the finished floor, the adjusted indoor lighting power of these luminaires shall be calculated by multiplying their maximum rated wattage and the appropriated mounting height adjustment factor from Table 140.6-E. Luminaire mounting height is the distance from the finished floor to the bottom of the luminaire. General lighting shall not qualify for a mounting height multiplier.
- The allowed indoor lighting power allotment for conditioned areas shall be calculated separately from the allowed lighting power allotment for unconditioned areas. Each allotment is applicable solely to the area to which it applies, and there shall be no trade-offs between conditioned and unconditioned area allotments.
- Allowed indoor lighting power allotment shall be calculated separately from the allowed outdoor lighting power allotment. Each allotment is applicable solely to the area to which it applies, and there shall be no trade-offs between the separate indoor and outdoor allotments.
- For a conditioned building, the product of the square feet of conditioned space of the building times the applicable allotment of watts per square foot described in Table 140.6-B.
- For an unconditioned building, the product of the square foot of unconditioned space of the building times the applicable allotment of watts per square feet described in Table 140.6-B.
- For conditioned areas, by multiplying the conditioned square feet of the area times the applicable allotment of watts per square foot for the area shown in Table140.6-D (or Table140.6-C if the area category method is used for that area);
- If the area category method is used for an area, the tailored method may not be used for that area. If the tailored method is used for an area, the area category method may not be used for that area.
- When using the area category method, allowed indoor lighting power allotments for specialized task work; ornamental; precision commercial and industrial work; white board or chalk board; accent, display and feature; decorative; or videoconferencing studio; may not be increased as a result of, or otherwise traded off against, decreasing any other allotment; and
- When using the tailored method, allowed indoor lighting power allotments for wall display; floor display and task; ornamental/special effect; or very valuable display case; may not be increased, or otherwise traded between any of the separate allotments.
- The complete building method shall be used only for building types, as defined in Section 100.1, that are specifically listed in Table 140.6-B. (For example, retail and wholesale stores, hotel/motel, and high-rise residential buildings shall not use this method.)
- Mixed occupancy buildings where one type of use makes up at least 90 percent of the entire building (in which case, when applying the complete building method, it shall be assumed that the primary use is 100 percent of the building); or
- A tenant space where one type of use makes up at least 90 percent of the entire tenant space (in which case, when applying the complete building method, it shall be assumed that the primary use is 100 percent of the tenant space).
- The complete building method shall be used only when the applicant is applying for a lighting permit and submits plans and specifications for the entire building or the entire tenant space.
- Under the complete building method, the allowed indoor lighting power allotment is the lighting power density value times the floor area of the entire building.
- For buildings including a parking garage plus another type of use listed in Table 140.6-B, the parking garage portion of the building and other type of use portion of the building shall each separately use the Complete Building Method.
- The area category method shall be used only for primary function areas, as defined in Section 100.1, that are listed in Table 140.6-C. For primary function areas not listed, selection of a reasonably equivalent type shall be permitted.
- Primary function areas in Table 140.6-C shall not apply to a complete building. Each primary function area shall be determined as a separate area.
- For purposes of compliance with Section 140.6(c)2, an "area" shall be defined as all contiguous areas that accommodate or are associated with a single primary function area listed in Table 146.0-C.
- Where areas are bounded or separated by interior partitions, the floor area occupied by those interior partitions may be included in primary function area.
- If at the time of permitting for a newly constructed building, a tenant is not identified for a multitenant area, a maximum of 0.4 watts per square foot shall be allowed for the lighting in each area in which a tenant has not been identified. The area shall be classified as unleased tenant area.
- Under the area category method, the allowed indoor lighting power for each primary function area is the lighting power density value in Table 140.6-C times the square feet of the primary function area. The total allowed indoor lighting power density for the building is the sum of all allowed indoor lighting powers densities for all areas in the building.
- Only primary function areas having a lighting systems as specified in the Qualifying Lighting Systems column in Table 140.6-C and in accordance with the corresponding footnote of the table shall qualify for the additional lighting power allowances; and
- The additional lighting power allowances shall be used only if the plans clearly identify all applicable task areas and the lighting equipment designed to illuminate these tasks; and
- Tasks that are performed less than two hours per day or poor quality tasks that can be improved are not eligible for the additional lighting power allowances; and
- The additional lighting power allowances shall not utilize any type of luminaires that are used for general lighting in the building; and
- The additional lighting power allowances shall not be used when using the complete building method, or when the tailored method used for any area in the building; and
- the lighting power density listed in the "Allowed Additional Lighting LPD" column in Table 140.6-C, times the square feet of the primary function, or
- the adjusted indoor lighting power of the applicable lighting; and
- A completed and signed installation certificate is prepared and submitted in accordance with Section 130.4(b), specifically detailing compliance with the applicable requirements of Section 140.6(c)2Gvii; and
- The videoconferencing studio is a room with permanently installed videoconferencing cameras, audio equipment, and playback equipment for both audiobased and video-based two-way communication between local and remote sites; and
- General lighting is switched in accordance with Table 130.1-A; and
- Wall wash lighting is separately switched from the general lighting system; and
- All of the lighting in the studio, including general lighting and additional lighting power allowed by Section 140.6(c)2Gvii is controlled by a multiscene programmable control system (also known as a scene preset control system).
- The tailored method shall be used only for primary function areas listed in Table 140.6-D, as defined in Section 100.1.
- Allowed indoor lighting power allotments for general lighting shall be determined according to Section 140.6(c)3F, as applicable.
- For compliance with Section 140.6(c)3, an "area" shall be defined as all contiguous areas that accommodate or are associated with a single primary function area listed in Table 140.6-D.
- Where areas are bounded or separated by interior partitions, the floor area occupied by those interior partitions may be included in a primary function area.
- Use the General Illumination Level (Lux) listed in Column 2 of Table 140.6-D to determine the allowed general lighting power density allotments for the area.
- Determine the room cavity ratio (RCR) for the area. The RCR shall be calculated according to the applicable equation in Table 140.6-F.
- Find the allowed general lighting power density allotments in Table 140.6-G that is applicable to the general illuminance level (Lux) from Column 2 of Table 140.6-D (as described in Item i) and the RCR determined in accordance with Table 140.6-F (as described in Item ii).
- Determine the square feet of the area in accordance with Section 140.6(c)3C and D.
- Multiply the allowed lighting power density allotment, as determined in accordance with Item iii by the square feet of each primary function area, as determined in accordance with Item iv. The product is the allowed indoor lighting power allotment for general lighting for the area.
- Floor displays shall not qualify for wall display allowances.
- Be mounted within 10 feet of the wall having the wall display. When track lighting is used for wall display, and where portions of that lighting track are more than 10 feet from the wall and other portions are within 10 feet of the wall, portions of track more than 10 feet from the wall shall not be used for the wall display allowance.
- Be a lighting system type appropriate for wall lighting. Lighting systems appropriate for wall lighting are lighting track adjacent to the wall, wall-washer luminaires, luminaires behind a wall valance or wall cove, or accent light. (Accent luminaires are adjustable or fixed luminaires with PAR, R, MR, AR or luminaires providing directional display light.)
- Additional allowed power for wall display lighting is available only for lighting that illuminates walls having wall displays. The length of display walls shall include the length of the perimeter walls, including but not limited to closable openings and permanent full height interior partitions. Permanent full height interior partitions are those that (I) extend from the floor to within 2 feet of the ceiling or are taller than 10 feet and (II) are permanently anchored to the floor.
- For wall display lighting where the bottom of the luminaire is greater than 10 feet 6 inches above the finished floor, the mounting height adjustment factor from Table 140.6-E can be used to adjust the installed luminaire wattage as specified in Section 140.6(a)4C.
- The allowed power for wall display lighting shall be the smaller of:
- the "wall display lighting power density" determined in accordance with Table 140.6-D, multiplied by the wall display lengths determined in accordance with Item iii; and
- The adjusted indoor lighting power used for the wall display lighting systems.
- Lighting internal to display cases that are attached to a wall or directly adjacent to a wall are counted as wall display lighting as specified in Section 140.6(c)3G. All other lighting internal to display cases are counted as floor display lighting as specified in Section 140.6(c)3H, or as very valuable display case lighting as specified in Section 140.6(c)3J.
- Displays that are installed against a wall shall not qualify for the floor display lighting power allowances.
- Lighting internal to display cases that are not attached to a wall and not directly adjacent to a wall shall be counted as floor display lighting in accordance with Section 140.6(c)3H; or very valuable display case lighting in accordance with Section 140.6(c)3J.
- Additional allowed power for floor display lighting, and additional allowed power for task lighting, may be used by qualifying floor display lighting systems, qualifying task lighting systems, or a combination of both. For floor areas qualifying for both floor display and task lighting power allowances, the additional allowed power shall be used only once for the same floor area, so that the allowance shall not be additive.
- Be mounted no closer than 2 feet to a wall.
- Consist of only (I) directional lamp types, such as PAR, R, MR, AR; or (II) luminaires providing directional display light.
- If track lighting is used, shall be only track heads that are classified as direction lighting types.
- Be located immediately adjacent to and capable of illuminating the task for which it is installed.
- Be of a type different from the general lighting system.
- Be separately switched from the general lighting system.
- If there are illuminated floor displays, floor display lighting power shall be used only if allowed by Column 4 of Table 140.6-D.
- The square footage of floor display or the square footage of task areas shall be determined in accordance with Section 140.6(c)3C and D, except that any floor area designed to not have floor displays or tasks, such as floor areas designated as a path of egress, shall not be included for the floor display allowance.
- For floor display lighting where the bottom of the luminaire is greater than 10.6 feet above the finished floor, multiply the floor display installed watts by the appropriate mounting height adjustment factor from Table 140.6-E to calculate the Adjusted Indoor Lighting Power as specified in Section 140.6(a)4C.
- The allowed power for floor display lighting for each applicable area shall be the smaller of:
- Qualifying ornamental lighting includes luminaires such as chandeliers, sconces, lanterns, neon and cold cathode, light emitting diodes, theatrical projectors, moving lights and light color panels, when any of those lights are used in a decorative manner that does not serve as display lighting or general lighting.
- Additional lighting power for ornamental/special effects lighting shall be used only if allowed by Column 5 of Table 140.6-D.
- Additional lighting power for ornamental/special effects lighting shall be used only in areas having ornamental/special effects lighting. The square footage of the floor area shall be determined in accordance with Section 140.6(c)3C and D, and it shall not include floor areas not having ornamental/special effects lighting.
- Additional allowed power for very valuable display case lighting shall be available only for display cases in appropriate function areas in retail merchandise sales, museum and religious worship.
- To qualify for additional allowed power for very valuable display case lighting, a case shall contain jewelry, coins, fine china, fine crystal, precious stones, silver, small art objects and artifacts, and/or valuable collections the display of which involves customer inspection of very fine detail from outside of a locked case.
- Qualifying lighting includes internal display case lighting or external lighting employing highly directional luminaires specifically designed to illuminate the case or inspection area without spill light, and shall not be fluorescent lighting unless installed inside of a display case.
- The product of the area of the primary function and 0.55 watt per square foot; or
- The product of the area of the display case and 8 watts per square foot; or
- The adjusted indoor lighting power of lighting for very valuable displays.
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.
LIGHTING POWER ADJUSTMENT FACTORS (PAF)
|TYPE OF CONTROL||TYPE OF AREA||FACTOR|
|1. Daylight Dimming plus OFF Control||Luminaires in skylit daylit zone or primary sidelit daylit zone||0.10|
|2. Occupant sensing controls in large open plan offices||In open plan offices > 250 square feet: One sensor controlling an area that is:||No larger than 125 square feet||0.40|
|From 126 to 250 square feet||0.30|
|From 251 to 500 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.
|Luminaires in daylit areas: |
Luminaires that qualify for other PAFs in this table may also qualify for this tuning PAF.
|4. Demand responsive control||All building types of 10,000 square feet or smaller. |
Luminaires that qualify for other PAFs in this table may also qualify for this demand responsive control PAF.
|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.
|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.
|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
COMPLETE BUILDING METHOD LIGHTING POWER DENSITY VALUES
|TYPE OF BUILDING||ALLOWED LIGHTING POWER DENSITY |
(WATTS PER SQUARE FOOT)
|Financial institution building||0.65|
|Industrial/manufacturing facility building||0.60|
|Grocery store building||0.95|
|Parking garage building||0.13|
|Religious facility building||0.70|
|Retail store building||0.90|
|Sports arena building||0.75|
|Motion picture theater building||0.70|
|Performing arts theater building||0.80|
|All others buildings||0.40|
AREA CATEGORY METHOD - LIGHTING POWER DENSITY VALUES (WATTS/FT2)
|PRIMARY FUNCTION AREA||ALLOWED LIGHTING |
POWER DENSITY FOR
|ADDITIONAL LIGHTING POWER1|
|Additional Allowance |
(W/ft2, unless noted
|Accent, display and feature3||0.20|
|Auto Repair / Maintenance Area||0.55||Detailed Task Work7||0.20|
|Audience Seating Area||0.60||Ornamental||0.30|
|Beauty Salon Area||0.80||Detailed Task Work7||0.20|
|Civic Meeting Place Area||1.00||Ornamental||0.30|
|Classroom, Lecture, Training, Vocational Area||0.70||White or Chalk Board1||4.50 W/ft|
|Shipping & Handling||0.60||—||—|
|Convention, Conference, Multipurpose and Meeting Area||0.85||Ornamental||0.30|
|Dining Area||Bar/Lounge and Fine Dining||0.55||Ornamental||0.30|
|Family and Leisure||0.50|
|Electrical, Mechanical, Telephone Rooms||0.40||Detailed Task Work7||0.20|
|Exercise/Fitness Center and Gymnasium Area||0.50||-||—|
|Hotel Function Area||0.85||Ornamental||0.30|
|Museum Area||Exhibition/Display||0.60||Accent, display and feature3||0.50|
|Restoration Room||0.75||Detailed Task Work7||0.20|
|Financial Transaction Area||0.80||Ornamental||0.30|
|General/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|
|Main Entry Lobby||0.85||Ornamental||0.30|
|Lounge, Breakroom, or Waiting Area||0.65||Ornamental||0.30|
|Concourse and Atria Area||0.90||Ornamental||0.30|
|Office Area||> 250 square feet||0.65||Portable lighting for office areas6||0.20|
|≤ 250 square feet||0.70|
|Open plan office||0.60|
|Parking Garage Area||Parking Zone||0.10||First ATM||100 W|
|Additional ATM||50 W each|
|Daylight Adaptation Zones2||0.50||—||—|
|Pharmacy Area||1.10||Specialized Task Work8||0.35|
|Retail Sales Area||Grocery Sales||1.05||Accent, display and feature3||0.20|
|Retail Merchandise Sales||1.00||Accent, display and feature3||0.20|
|Fitting Room||0.60||External Illuminated Mirror5||40 W/ea|
|Internal Illuminated Mirror5||120 W/ea|
|Theater Area||Motion picture||0.60||Ornamental||0.30|
|Kitchen/Food Preparation Area||0.95||—||—|
|Scientific Laboratory Area||1.00||Specialized Task Work8||0.35|
|Healthcare Facility and Hospitals||Exam/Treatment Room||1.15||—||—|
|Medical Supply Room||0.55||—||—|
|Nursery||0.95||Tunable white or dim-to-warm10||0.10|
|Nurse's Station||0.75||Tunable white or dim-to-warm10||0.10|
|Tunable white or dim-to-warm10||0.10|
|Physical Therapy Room||0.85||Tunable white or dim-to-warm10||0.10|
|Recovery Room||0.90||Tunable white or dim-to-warm10||0.10|
|Religious Worship Area||0.95||Ornamental||0.30|
|Restrooms||0.65||Accent, display and feature3||0.20|
|Transportation Function||Baggage Area||0.40||—||—|
|Ticketing Area||0.45||Accent, display and feature3||0.20|
|Sports Arena — Playing Area||Class I Facility13||2.25||—||—|
|Class II Facility13||1.45||—||—|
|Class III Facility13||1.10||—||—|
|Class IV Facility13||0.75||—||—|
|Stairwell||0.50||Accent, display and feature3||0.20|
|Aging Eye/Low-vision11||Main Entry Lobby||0.85||Ornamental||0.30|
|Transition Lighting OFF at night12||0.95|
|Religious Worship Area||1.00||Ornamental||0.30|
|Restroom||0.80||Accent, display and feature3||0.20|
- White board or chalk board. — Directional lighting dedicated to a white board or chalk board.
- Daylight Adaptation Zones shall be no longer than 66 feet from the entrance to the parking garage.
- Accent, display and feature lighting — luminaires shall be adjustable or directional.
- Decorative lighting — primary function shall be decorative and not to provide general lighting.
- Illuminated mirrors. Lighting shall be dedicated to the mirror.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
TAILORED METHOD LIGHTING POWER ALLOWANCES
|Primary Function Area||General Illumination |
|Wall Display Lighting |
|Allowed Combined |
Floor Display Power
and Task Lighting Power
|Allowed Ornamental/ |
Special Effect Lighting
Power Density (W/ft2)
|Convention, conference, multipurpose, and meeting center areas||300||2.00||0.35||0.40|
|Exhibit, museum areas||150||11.50||0.80||0.40|
|Main entry lobby||200||3.50||0.20||0.40|
|Religious worship area||300||1.30||0.40||0.40|
|Merchandise sales, and showroom areas||500||11.80||0.80||0.40|
TAILORED WALL AND FLOOR DISPLAY MOUNTING HEIGHT ADJUSTMENT FACTORS
|HEIGHT IN FEET ABOVE FINISHED
FLOOR AND BOTTOM OF LUMINAIRE(S)
|FLOOR DISPLAY OR WALL DISPLAY —
MOUNTING HEIGHT ADJUSTMENT FACTOR
|>10'-6" to 14'-0"||0.85|
|> 14'-0" to 18'-0"||0.75|
ROOM CAVITY RATIO (RCR) EQUATIONS
|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|
|Where: L = Length of room; W = Width of room; H = Vertical distance from the work plane to the centerline of the lighting fixture; P = Perimeter of room; and A = Area of room|
TAILORED METHOD GENERAL LIGHTING POWER ALLOWED —BY ILLUMANCE AND ROOM CAVITY RATIO
|GENERAL LIGHTING POWER DENSITY (W/FT2) FOR THE FOLLOWING RCR VALUESb VALUESb|
|GENERAL ILLUMINANCE |
|RCR ≤ 2.0||RCR > 2.0 AND ≤ 3.5||RCR > 3.5 AND ≤ 7.0||RCR > 7.0|