Electrical power and lighting systems, other than those systems or portions thereof required for emergency use only, shall meet these requirements.
Table 401.2.1-Minimum Acceptable Nominal Full-Load Efficiency for Single-Speed Polyphase Squirrel-Cage Induction Motors Having Synchronous Speeds of 3600, 1800, 1200 and 900 rpm1
HP | 2-Pole | 4-Pole | 6-Pole | 8-Pole | ||||
Nominal efficiency | Minimum efficiency | Nominal efficiency | Minimum efficiency | Nominal efficiency | Minimum efficiency | Nominal efficiency | Minimum efficiency | |
Full-Load Efficiencies-Open Motors | ||||||||
1.0 | 82.5 | 81.5 | 80.0 | 78.5 | 74.0 | 72.0 | ||
1.5 | 82.5 | 81.5 | 84.0 | 82.5 | 84.0 | 82.5 | 75.5 | 74.0 |
2.0 | 84.0 | 82.5 | 84.0 | 82.5 | 85.5 | 84.0 | 85.5 | 84.0 |
3.0 | 84.0 | 82.5 | 86.5 | 85.5 | 86.5 | 85.5 | 86.5 | 85.5 |
5.0 | 85.5 | 84.0 | 87.5 | 86.5 | 87.5 | 86.5 | 87.5 | 86.0 |
7.5 | 87.5 | 86.5 | 88.5 | 87.5 | 88.5 | 87.5 | 88.5 | 87.5 |
10.0 | 88.5 | 87.5 | 89.5 | 88.5 | 90.2 | 89.5 | 89.5 | 88.5 |
15.0 | 89.5 | 88.5 | 91.0 | 90.2 | 90.2 | 89.5 | 89.5 | 88.5 |
20.0 | 90.2 | 89.5 | 91.0 | 90.2 | 91.0 | 90.2 | 90.2 | 89.5 |
25.0 | 91.0 | 90.2 | 91.7 | 91.0 | 91.7 | 91.0 | 90.2 | 89.5 |
30.0 | 91.0 | 90.2 | 92.4 | 91.7 | 92.4 | 91.7 | 91.7 | 90.2 |
40.0 | 91.7 | 91.0 | 93.0 | 92.4 | 93.0 | 92.4 | 91.0 | 90.2 |
50.0 | 92.4 | 91.7 | 93.0 | 92.4 | 93.0 | 92.4 | 91.7 | 91.0 |
60.0 | 93.0 | 92.4 | 93.6 | 93.0 | 93.6 | 93.0 | 92.4 | 91.7 |
75.0 | 93.0 | 92.4 | 94.1 | 93.6 | 93.6 | 93.0 | 93.6 | 93.0 |
100.0 | 93.0 | 92.4 | 94.1 | 93.6 | 94.1 | 93.6 | 93.6 | 93.0 |
125.0 | 93.6 | 93.0 | 94.5 | 94.1 | 94.1 | 93.6 | 93.6 | 93.0 |
150.0 | 93.6 | 93.0 | 95.0 | 94.5 | 94.5 | 94.1 | 93.6 | 93.0 |
200.0 | 94.5 | 94.1 | 95.0 | 94.5 | 94.5 | 94.1 | 93.6 | 93.0 |
Full-Load Efficiencies-Enclosed Motors | ||||||||
1.0 | 75.5 | 74.5 | 82.5 | 81.5 | 80.0 | 78.5 | 74.0 | 72.0 |
1.5 | 82.5 | 81.5 | 84.0 | 82.5 | 85.5 | 84.0 | 77.0 | 75.5 |
2.0 | 84.0 | 82.5 | 84.5 | 82.5 | 86.5 | 85.5 | 82.5 | 81.5 |
3.0 | 85.5 | 84.0 | 87.5 | 86.5 | 87.5 | 86.5 | 84.0 | 82.5 |
5.0 | 87.5 | 86.5 | 87.5 | 86.5 | 87.5 | 86.5 | 85.5 | 84.0 |
7.5 | 88.5 | 87.5 | 89.5 | 88.5 | 89.5 | 88.5 | 85.5 | 84.0 |
10.0 | 89.5 | 88.5 | 89.5 | 88.5 | 89.5 | 88.5 | 88.5 | 87.5 |
15.0 | 90.2 | 89.5 | 91.0 | 90.2 | 90.2 | 89.5 | 88.5 | 87.5 |
20.0 | 90.2 | 89.5 | 91.0 | 90.2 | 90.2 | 89.5 | 89.5 | 88.5 |
25.0 | 91.0 | 90.2 | 92.4 | 91.7 | 91.7 | 91.0 | 89.5 | 88.5 |
30.0 | 91.0 | 90.2 | 92.4 | 91.7 | 91.7 | 91.0 | 91.0 | 90.2 |
40.0 | 91.7 | 91.0 | 93.0 | 92.4 | 93.0 | 92.4 | 91.0 | 90.2 |
50.0 | 92.4 | 91.7 | 93.0 | 92.4 | 93.0 | 92.4 | 91.7 | 91.0 |
60.0 | 93.0 | 92.4 | 93.6 | 93.0 | 93.6 | 93.0 | 91.7 | 91.0 |
75.0 | 93.0 | 92.4 | 94.1 | 93.6 | 93.6 | 93.0 | 93.0 | 92.4 |
100.0 | 93.6 | 93.0 | 94.5 | 94.1 | 94.1 | 93.6 | 93.0 | 92.4 |
125.0 | 94.5 | 94.1 | 94.5 | 94.1 | 94.1 | 93.6 | 93.6 | 93.0 |
150.0 | 94.5 | 94.1 | 95.0 | 94.5 | 94.5 | 94.1 | 94.1 | 93.0 |
200.0 | 95.0 | 94.5 | 95.0 | 94.5 | 95.0 | 94.5 | 94.1 | 93.6 |
1 For many applications, efficiencies greater than those listed are likely to be cost-effective. Guidance for evaluating the cost effectiveness of energy efficient motor applications is given in RS-43 and RS-44 (incorporated by reference, see § 434.701 ) .
Table 401.3.1-Exterior Lighting Power Allowance
Area description | Allowance |
Exit (with or without canopy) | 25 W/lin ft of door opening. |
Entrance (without canopy) | 30 W/lin ft of door opening. |
Entrance (with canopy): | |
High Traffic (retail, hotel, airport, theater, etc.) | 10 W/ft2 of canopied area. |
Light Traffic (hospital, office, school, etc.) | 4 W/ft2 of canopied area. |
Loading area | 0.40 W/ft2. |
Loading door | 20 W/lin ft of door opening. |
Building exterior surfaces/facades | 0.25 W/ft2 of surface area to be illuminated. |
Storage and non-manufacturing work areas | 0.20 W/ft2. |
Other activity areas for casual use such as picnic grounds, gardens, parks, and other landscaped areas | 0.10 W/ft2. |
Private driveways/walkways | 0.10 W/ft2. |
Public driveways/walkways | 0.15 W/ft2. |
Private parking lots | 0.12 W/ft2. |
Public parking lots | 0.18 W/ft2. |
401.3.2-Tables and Figures
Table 401.3.2a-Interior Lighting Power Allowance W/ft2
Building space activity1 | Gross lighted area of total building | |||||
0 to 2,000 ft2 | 2,001 to 10,000 ft2 | 10,001 to 25,000 ft2 | 25,001 to 50,000 ft2 | 50,001 to 250,000 ft2 | 250,000 ft2 | |
Food Service: | ||||||
Fast Food/Cafeteria | 1.50 | 1.38 | 1.34 | 1.32 | 1.31 | 1.30 |
Leisure Dining/Bar | 2.20 | 1.91 | 1.71 | 1.56 | 1.46 | 1.40 |
Offices | 1.90 | 1.81 | 1.72 | 1.65 | 1.57 | 1.50 |
Retail3 | 3.30 | 3.08 | 2.83 | 2.50 | 2.28 | 2.10 |
Mall Concourse Multi-store Service | 1.60 | 1.58 | 1.52 | 1.46 | 1.43 | 1.40 |
Service Establishment | 2.70 | 2.37 | 2.08 | 1.92 | 1.80 | 1.70 |
Garages | 0.30 | 0.28 | 0.24 | 0.22 | 0.21 | 0.20 |
Schools: | ||||||
Preschool/Elementary | 1.80 | 1.80 | 1.72 | 1.65 | 1.57 | 1.50 |
Jr. High/High School | 1.90 | 1.90 | 1.88 | 1.83 | 1.76 | 1.70 |
Technical/Vocational | 2.40 | 2.33 | 2.17 | 2.01 | 1.84 | 1.70 |
Warehouse/Storage | 0.80 | 0.66 | 0.56 | 0.48 | 0.43 | 0.40 |
1 If at least 10% of the building area is intended for multiple space activities, such as parking, retail, and storage in an office building, then calculate for each separate building type/space activity.
2 The values in the categories are building wide allowances which include the listed activity and directly related facilities such as conference rooms, lobbies, corridors, restrooms, etc.
3 Includes general, merchandising, and display lighting.
Table 401.3.2b-Unit Interior Lighting Power Allowance
Common area/activity1 | UPD W/ft2 |
Auditorium2 | 1.4 |
Corridor3 | 0.8 |
Classroom/Lecture Hall | 2.0 |
Electrical/Mechanical Equipment Room: | |
General3 | 0.7 |
Control Rooms3 | 1.5 |
Food Service: | |
Fast Food/Cafeteria | 1.3 |
Leisure Dining4 | 1.4 |
Bar/Lounge4 | 2.5 |
Kitchen | 1.4 |
Recreation/Lounge | 0.7 |
Stair: | |
Active Traffic | 0.6 |
Emergency Exit | 0.4 |
Toilet & Washroom | 0.8 |
Garage: | |
Auto & Pedestrian Circulation Area | 0.3 |
Parking Area | 0.2 |
Laboratory | 2.2 |
Library: | |
Audio Visual | 1.1 |
Stack Area | 1.1 |
Card File & Cataloging | 0.8 |
Reading Area | 1.1 |
Lobby (General): | |
Reception & Waiting | 1.0 |
Elevator Lobbies | 0.4 |
Atrium (Multi-Story): | |
First 3 Floors | 0.7 |
Each Additional Floor | 0.2 |
Locker Room & Shower | 0.8 |
Office Category 1 | |
Enclosed offices, all open plan offices w/o partitions or w/partitions6 lower than 4.5 ft below the ceiling.5 | |
Reading, Typing and Filing | 1.5 |
Drafting | 1.9 |
Accounting | 1.6 |
Office Category 2: | |
Open plan offices 900 ft2 or larger w/partitions | |
1 3.5 to 4.5 ft below the ceiling. | |
Offices less than 900 ft2 shall use category 13 | |
Reading, Typing and Filing | 1.5 |
Drafting | 2.0 |
Accounting | 1.8 |
Office Category 3: | |
Open plan offices 900 ft2 or larger w/partitions6 higher than 3.5 ft below the ceiling. | |
Offices less than 900 ft2 shall use category 1.3 | |
Reading, Typing and Filing | 1.7 |
Drafting | 2.3 |
Accounting | 1.9 |
Common Activity Areas | |
Conference/Meeting Room2 | 1.3 |
Computer/Office Equipment | 1.1 |
Filing, Inactive | 1.0 |
Mail Room | 1.8 |
Shop (Non-Industrial): | |
Machinery | 2.5 |
Electrical/Electronic | 2.5 |
Painting | 1.6 |
Carpentry | 2.3 |
Welding | 1.2 |
Storage and Warehouse; | |
Inactive Storage | 0.2 |
Active Storage, Bulky | 0.3 |
Active Storage, Fine | 0.9 |
Material Handling | 1.0 |
Unlisted Space | 0.2 |
1 Use a weighted average UPD in rooms with multiple simultaneous activities, weighted in proportion to the area served.
2 A 1.5 power adjustment factor is applicable for multi-function spaces when a supplementary system having independent controls is installed that has installed power [LESS THAN EQUAL TO]33% of the adjusted lighting power for that space.
3 Area factor of 1.0 shall be used for these spaced.
4 UPD includes lighting power required for clean-up purposes.
5 Area factor shall not exceed 1.55.
6 Not less than 90 percent of all work stations shall be individually enclosed with partitions of at least the height described.
Table 401.3.2c-Unit Interior Lighting Power Allowance
Specific building area/activity1 | UPD W/ft2 |
Airport, Bus and Rail Station: | |
Baggage Area | 0.8 |
Concourse/Main Thruway | 0.9 |
Ticket Counter | 2.0 |
Waiting & Lounge Area | 0.8 |
Bank: | |
Customer Area | 1.0 |
Banking Activity Area | 2.2 |
Barber & Beauty Parlor | 1.6 |
Church, Synagogue, Chapel: | |
Worship/Congregational | 1.7 |
Preaching & Sermon/Choir | 1.8 |
Dormitory: | |
Bedroom | 1.0 |
Bedroom w/Study | 1.3 |
Study Hall | 1.2 |
Fire & Police Department: | |
Fire Engine Room | 0.7 |
Jail Cell | 0.8 |
Hospital/Nursing Home: | |
Corridor3 | 1.3 |
Dental Suite/Examination/Treatment | 1.6 |
Emergency | 2.0 |
Laboratory | 1.7 |
Lounge/Waiting Room | 0.9 |
Medical Supplies | 2.4 |
Nursery | 1.6 |
Nurse Station | 1.8 |
Occupational Therapy/Physical Therapy | 1.4 |
Patient Room | 1.2 |
Pharmacy | 1.5 |
Radiology | 1.8 |
Surgical & Obstetrics Suites: | |
General Area | 1.8 |
Operating Room | 6.0 |
Recovery | 2.0 |
Hotel/Conference Center: | |
Banquet Room/Multipurpose2 | 1.7 |
Bathroom/Powder Room | 1.2 |
Guest Room | 0.9 |
Public Area | 1.0 |
Exhibition Hall | 1.8 |
Conference/Meeting2 | 1.5 |
Lobby | 1.5 |
Reception Desk | 2.4 |
Laundry: | |
Washing | 0.9 |
Ironing & Sorting | 1.3 |
Museum & Gallery: | |
General Exhibition | 1.9 |
Inspection/Restoration | 3.0 |
Storage (Artifacts): | |
Inactive | 0.6 |
Active | 0.7 |
Post Office: | |
Lobby | 1.1 |
Sorting & Mailing | 2.1 |
Service Station/Auto Repair | 0.8 |
Theater: | |
Performance Arts | 1.3 |
Motion Picture | 1.0 |
Lobby | 1.3 |
Retail Establishments-Merchandising & Circulation Area (Applicable to all lighting, including accent and display lighting, installed in merchandising and circulation areas): | |
Type 1: Jewelry merchandising, where minute examination of displayed merchandise is critical. | 5.6 |
Type 2: Fine merchandising, such as fine apparel and accessories, china, crystal, and silver art galleries and where the detailed display and examination of merchandising is important. | 2.9 |
Type 3: Mass merchandising, such as general apparel, variety goods, stationary, books, sporting goods, hobby materials, cameras, gifts, and luggage, displayed in a warehouse type of building, where focused display and detailed examination of merchandise is important. | 2.7 |
Type 4: General merchandising, such as general apparel, variety goods, stationary, books, sporting goods, hobby materials, cameras, gifts, and luggage, displayed in a department store type of building, where general display and examination of merchandise is adequate. | 2.3 |
Type 5: Food and miscellaneous such as bakeries, hardware and housewares, grocery stores, appliance and furniture stores, where pleasant appearance is important. | 2.4 |
Type 6: Service establishments, where functional performance is important. | 2.6 |
Mall Concourse | 1.4 |
Retail Support Areas | 2.1 |
Tailoring | 1.1 |
Dressing/Fitting Rooms |
1 Use a weighted average UPD in rooms with multiple simultaneous activities, weighted in proportion to the area served.
2 A 1.5 power adjustment factor is applicable for multi-function spaces when a supplementary system having independent controls is installed that has installed power [LESS THAN EQUAL TO]33% of the adjusted lighting power for that space.
3 Area factor shall not exceed 1.55.
Table 401.3.2d-Unit Interior Lighting Power Allowance
Indoor athletic area/activity1 2 | UPD W/ft2 |
Seating Area, All Sports | 0.4 |
Badminton: | |
Club | 0.5 |
Tournament | 0.8 |
Basketball/Volleyball: | |
Intramural | 0.8 |
College | 1.3 |
Professional | 1.9 |
Bowling: | |
Approach Area | 0.5 |
Lanes | 1.1 |
Boxing or Wrestling (platform): | |
Amateur | 2.4 |
Professional | 4.8 |
Gymnasium: | |
General Exercising and Recreation Only | 1.0 |
Handball/Racquetball/Squash: | |
Club | 1.3 |
Tournament | 2.6 |
Hockey, Ice: | |
Amateur | 1.3 |
College or Professional | 2.6 |
Skating Rink: | |
Recreational | 0.6 |
Exhibition/Professional | 2.6 |
Swimming: | |
Recreational | 0.9 |
Exhibition | 1.5 |
Underwater | 1.0 |
Tennis: | |
Recreational (Class III) | 1.3 |
Club/College (Class II) | 1.9 |
Professional (Class I) | 2.6 |
Tennis, Table: | |
Club | 1.0 |
Tournament | 1.6 |
1 Area factor of 1.0 shall be used for these spaces.
2 Consider as 10 ft. beyond playing boundaries but less than or equal to the total floor area of the sports space minus spectator seating area.
Figure 401.3.2e-Area Factor Formula
Area Factor Formula:
Area Factor (AF) = 0.2 + 0.8(1/0.9n)
Where:
AF = area factor,
CH = ceiling height (ft),
Ar = space area (ft2).
If AF [LESS THAN]1.0 use 1.0; if AF [GREATER THAN]1.8 use 1.8
Table 401.3.3-Lighting Power Adjustment Factors
Automatic control devices | PAF |
(1) Daylight Sensing controls (DS), continuous dimming | 0.30 |
(2) DS, multiple step dimming | 0.20 |
(3) DS, ON/OFF | 0.10 |
(4) DS continuous dimming and programmable timing | 0.35 |
(5) DS multiple step dimming and programmable timing | 0.25 |
(6) DS ON/OFF and programmable timing | 0.15 |
(7) DS continuous dimming, programmable timing, and lumen maintenance | 0.40 |
(8) DS multiple step dimming, programmable timing, and lumen maintenance | 0.30 |
(9) DS ON/OFF, programmable timing, and lumen maintenance | 0.20 |
(10) Lumen maintenance control | 0.10 |
(11) Lumen maintenance and programmable timing control | 0.15 |
(12) Programmable timing control | 0.15 |
(13) Occupancy sensor (OS) | 0.30 |
(14) OS and DS, continuous dimming | 0.40 |
(15) OS and DS, multiple-step dimming | 0.35 |
(16) OS and DS, ON/OFF | 0.35 |
(17) OS, DS continuous dimming, and lumen maintenance | 0.45 |
(18) OS, DS multiple-step dimming and lumen maintenance | 0.40 |
(19) OS, DS ON/OFF, and lumen maintenance | 0.35 |
(20) OS and lumen maintenance | 0.35 |
(21) OS and programmable timing control | 0.35 |
10 C.F.R. §434.401