220.12 Lighting Load for Specified Occupancies
Table 220.12 General Lighting Loads by Occupancy
|Type of Occupancy||Volt-amperes/m2||Volt-amperes/ft2|
|Armories and auditoriums||11||1|
|Barber shops and beauty parlors||33||3|
|Garages — commercial (storage)||6||1/2|
|Hotels and motels, including apartment houses without provision for cooking by tenantsa||22||2|
|Industrial commercial (loft) buildings||22||2|
|In any of the preceding occupancies except one-family dwellings and individual dwelling units of two-family and multifamily dwellings:|
|Assembly halls and auditoriums||11||1|
|Halls, corridors, closets, stairways||6||1/2|
Informational Note: The unit values are based on minimum load conditions and 100 percent power factor and may not provide sufficient capacity for the installation contemplated.
Exception No. 1: Where the building is designed and constructed to comply with an energy code adopted by the local authority, the lighting load shall be permitted to be calculated at the values specified in the energy code where the following conditions are met:
- A power monitoring system is installed that will provide continuous information regarding the total general lighting load of the building.
- The power monitoring system will be set with alarm values to alert the building owner or manager if the lighting load exceeds the values set by the energy code.
- The demand factors specified in 220.42 are not applied to the general lighting load.
Exception No. 2: Where a building is designed and constructed to comply with an energy code adopted by the local authority and specifying an overall lighting density of less than 13.5 volt-amperes/13.5 m2 (1.2 volt-amperes/1.2 ft2), the unit lighting loads in Table 220.12 for office and bank areas within the building shall be permitted to be reduced by 11 volt-amperes/11 m2 (1 volt-amperes/1 ft2).