The requirements for maximum rated wattage labeling, classifying the type of lighting technology used, and determining how many watts of power are used in luminaires is contained in §130.0(c). While all residential luminaires are required to be high efficacy, there are no similar requirements for nonresidential luminaires.
A. Manufacturer labeling of luminaires.
1. The maximum relamping rated wattage of a luminaire shall be listed on a permanent, pre-printed, factory-installed label, as specified by UL 1574, 1598, 2108, or 8750, as applicable.
2. Peel-off and peel-down labels that allow the maximum labeled wattage to be changed are prohibited, except for luminaires meeting ALL of the following requirements:
a. It can accommodate a range of lamp wattages without changing the luminaire housing, ballast, transformer or wiring.
b. It has a single lamp.
c. It has an integrated ballast or transformer.
d. Peel-down labels are layered such that the rated wattage reduces as successive layers are removed.
e. Qualifies as one of the following three types of luminaires:
i. High intensity discharge luminaires, having an integral electronic ballast, with a maximum relamping rated wattage of 150 watts.
ii. Low-voltage luminaires (this shall not apply to low voltage track systems), ≤ 24 volts, with a maximum relamping rated wattage of 50 watts.
iii. Compact fluorescent luminaires, having an integral electronic ballast, with a maximum relamping rated wattage of 42 watts
B. Luminaires with line voltage lamp holders not containing permanently installed ballasts are always classified as incandescent luminaires. The wattage of such luminaires shall be determined as follows:
1. The maximum relamping rated wattage of the luminaire.
2. For recessed luminaires with line-voltage medium screw base sockets, wattage shall not be less than 50 watts per socket.
For example, if a recessed luminaire has a relamping rated wattage on a permanent, pre-printed, factory-installed label of 30 watts, it shall be counted as 50 watts; if a recessed luminaire has a relamping rated wattage of 90 watts, it shall be counted as 90 watts.
Peel-down labels are never recognized for any type of incandescent luminaire.
C. Luminaires and luminaire housings designed to accommodate a variety of trims or modular components that allow the conversion between incandescent and any other lighting technology without changing the luminaire housing or wiring shall be classified as incandescent.
D. Screw-based adaptors shall not be used to convert an incandescent luminaire to any type of non-incandescent technology. Screw-based adaptors, including screw-base adaptors classified as permanent by the manufacturer, shall not be recognized for compliance with the Energy Standards.
E. Luminaires and luminaire housings manufactured with incandescent screw base sockets shall be classified only as incandescent. Field modifications, including hard wiring of an LED module, shall not be recognized as converting an incandescent luminaire or luminaire housing to a non-incandescent technology for compliance with the Energy Standards unless such sockets are removed.
F. The wattage of luminaires with permanently installed or remotely installed ballasts or drivers shall be determined as follows:
1. The operating input wattage of the rated lamp/ballast combination published in ballast manufacturer’s catalogs based on independent testing lab reports as specified by UL 1598.
2. The maximum input wattage of the rated driver published in driver’s manufacturer catalogs based on independent testing lab reports as specified by UL 8750 or LM-79-08
G. The wattage of line-voltage lighting track and plug-in busway which allows the addition or relocation of luminaires without altering the wiring of the system shall be determined by one of the following methods:
1. There is only one option for line voltage busway and track rated for more than 20 amperes. Wattage shall be the total volt-ampere rating of the branch circuit feeding the busway and track.
2. There are four options for determining the wattage of line voltage busway and track rated for 20 amperes or less, as follows:
a. The volt-ampere rating of the branch circuit feeding the track or busway; or
b. The higher of:
i. The rated wattage of all of the luminaires included in the system, where luminaire classification and wattage is determined according to the applicable provisions in §130.0(c).
ii. 45 watts per linear foot.
c. When using a Line-Voltage Track Lighting Integral Current Limiter, the higher of:
i. The volt-ampere rating of an integral current limiter controlling the track or busway.
ii. 12.5 watts per linear foot of track or busway.
An integral current limiter shall be certified to the Energy Commission in accordance with §110.9, and shall comply with the Lighting Control Installation Requirements.
Before a Line-Voltage Track Lighting Integral Current Limiter will be recognized for compliance with the lighting requirements in the Energy Standards, the person who is eligible under Division 3 of the Business and Professions Code to accept responsibility for the construction or installation of features, materials, components, or manufactured devices shall sign and submit the Certificate of Installation.
If any of the requirements in the Certificate of Installation are not met, the Line-Voltage Track Lighting Integral Current Limiter shall not be recognized for compliance with the Energy Standards.
d. When using a dedicated track lighting supplementary overcurrent protection panel, the sum of the ampere (A) rating of all of the overcurrent protection devices times the branch circuit voltages.
Track lighting supplementary overcurrent protection panels shall comply with the applicable requirements in §110.9, and shall comply with the Lighting Control Installation Requirements.
Before a dedicated track lighting supplementary overcurrent protection panel will be recognized for compliance with the lighting requirements, the person who is eligible under Division 3 of the Business and Professions Code to accept responsibility for the construction or installation of features, materials, components, or manufactured devices shall sign and submit the Certificate of Installation.
If any of the requirements in the Certificate of Installation are not met, the track lighting supplementary overcurrent protection panel shall not be recognized for compliance with the Energy Standards.
H. Luminaires and lighting systems with permanently installed or remotely installed transformers. The wattage of such luminaires shall be determined as follows:
1. For low-voltage luminaires that do not allow the addition of lamps, lamp holders, or luminaires without rewiring, the wattage shall be the rated wattage of the lamp/transformer combination.
2. For low-voltage lighting systems, including low voltage tracks and other low-voltage lighting systems which allow the addition of lamps, lamp holders, or luminaires without rewiring, the wattage shall be the maximum rated input wattage of the transformer, labeled in accordance with item 1, or the maximum rated wattage published in transformer manufacturer’s catalogs, as specified by UL 2108.
I. Light emitting diode (LED) Luminaires, and LED Light Engine for nonresidential applications are not required to be certified to the Energy Commission. An LED light engine is a an integrated assembly comprised of LED packages (components) or LED arrays (modules), LED driver, and other optical, thermal, mechanical and electrical components . The light engine is intended to connect directly to the branch circuit through a custom connector compatible with the LED luminaire for which it was designed and does not use an ANSI standard (screw) base. LED luminaires and light engines for residential applications shall be certified to the Energy Commission in order to be classified as high efficacy. See Chapter 6 in the 2016 Residential Compliance Manual for information on classifying residential LED luminaires as high efficacy.
1. The wattage of such luminaires shall be the maximum rated input wattage of the system when tested in accordance with IES LM-79-08.
2. The maximum rated input wattage shall be labeled on the luminaire, light engine, or luminaire housing in accordance with §130.0(c)1. Labels only on the power supply are not sufficient for compliance with this requirement.
3. An LED lamp, integrated or non-integrated type in accordance with the definition in ANSI/IES RP-16-2010, shall not be classified as a LED lighting system for compliance with The Energy Standards. LED modules having screw-bases including but not limited to screw based pig-tails, screw-based sockets, or screw-based adaptors shall not be recognized as an LED lighting system for compliance with the Energy Standards. The intent of this requirement is to not give credit for screw based LED lamps. An ANSI/IES RP-16-2010 integrated or non-integrated LED lamp is one with a screw base. The governing wattage of a luminaire with a screw based lamp is the rated luminaire wattage and not the LED lamp. If one wants to take credit for the lower wattage afforded by a LED lamp then the luminaire must have a GU-24 socket or be a hard wired LED luminaire (i.e. contain a LED light engine) that is rated according to IES LM-79-08.
4. Luminaires manufactured or rated for use with low-voltage incandescent lamps, into which have been installed LED modules or LED lamps, shall not be recognized as a LED lighting system for compliance with the Energy Standards.
5. For LED lighting systems which allow the addition of luminaires or light engines without rewiring, the wattage of such luminaires shall be the maximum rated input wattage of the power supply, labeled in accordance with §130.0(c)1 or published in the power supply manufacturer’s catalog.
J. The wattage of all other miscellaneous lighting equipment shall be the maximum rated wattage of the lighting equipment, or operating input wattage of the system, labeled in accordance with §130.0(c)1, or published in manufacturer’s catalogs, based on independent testing lab reports as specified by UL 1574 or UL 1598.
The installed wattage of indoor lighting luminaires are calculated as follows for the various type of systems:
A. Line voltage screw based luminaires (not including track lighting):
•The maximum rated wattage of the luminaire, regardless of the wattage of the lamp that is installed.
o Additional requirements for recessed luminaires: The wattage of recessed luminaires shall not be less than 50 watts
B. Luminaires containing a hardwired ballasts
•The rated input wattage of the lamp/ballast:
C. Line voltage track lighting one of the following:
1. The larger of the rated wattage of luminaires installed on the track or 45 Watts per linear foot.
2. The volt-amps of the circuit serving the track.
3. The larger of the volt-amps of the integral current limiter serving the track or 12.5 Watts per linear foot of track.
4. The volt amps of the dedicated overcurrent protection in track lighting supplementary overcurrent protection panel.
D. Low voltage luminaires with hardwired or remotely installed transformers:
•If the lamps cannot be replaced without rewiring, the rated wattage of lamp/transformer combination
•If the lamps can be replaced without rewiring (i.e. the lamps fit into a socket), the maximum rated input wattage of the transformer.
E. Light emitting diode (LED) “luminaires and LED light” engines:
•The maximum rated input wattage of the system when tested in accordance with IES LM-79-08, or
F. Screw-in LED or CFL lamps or screw-in assemblies are not recognized for their lower wattages, the rating for luminaires with screw-in lamps or assemblies is the labeled rating of the luminaire itself.
Note: The Energy Standards Nonresidential Appendix NA8 provides an alternate option for determining how many watts of power is used per luminaire. NA8 provides tables that contain a limited list of lamp and ballast combinations. These tables in NA8 provide an alternate voluntary option to the provision in §130.0(c) for determining luminaire power for any lamp and ballast combination specifically 'listed in NA8. Appendix NA8 is not intended to list all possible lamp and ballast combinations, and shall not to be used to determine luminaire power for any lighting system not specifically 'listed in NA8.
When using NA8 to determine luminaire power, luminaire classification shall still be determined in accordance with §130.0(c).
Lamp ballast combinations included in Appendix NA8 are:
•Fluorescent U-Tubes
•Fluorescent Linear Lamps T5
•Fluorescent Rapid Start T-8
•Fluorescent Eight foot T-8 High Output (HO) with Rapid Start Ballasts
•High Intensity Discharge (Metal Halide and High Pressure Sodium)
•12 Volt Tungsten Halogen Lamps Including MR16, Bi-pin, AR70, AR111, PAR36
Example 5-1 Luminaire power
Question
I’m considering replacing tubular fluorescent lamps with tubular LED lamps as part of a larger lighting system alteration. What method can I use to determine the luminaire power for these luminaires?
Answer
Complying with §130.0(c)6: Reference Nonresidential Appendix NA8 can be used to determine luminaire power where fluorescent ballasts are used with tubular LED lamps. Simply find the matching ballast and type/length of linear or U-shaped fluorescent lamp, and use the value given in that table. If more than one value applies, use the smallest appropriate value.