Section 51-11C-405051. Section C405.4.1—Total connected interior lighting power.

C405.4.1 Total connected interior lighting power. The total connected interior lighting power shall be determined in accordance with Equation 4-10.

TCLP = [SL + LV + LTPB + Other]

(Equation 4-10)

Where:

TCLP = Total connected lighting power (watts).

SL = Labeled wattage of luminaires for screw-in lamps.

LV = Wattage of the transformer supplying low-voltage lighting.

LTPB = Wattage of line-voltage lighting tracks and plug-in busways as the specified wattage of the luminaires but at least 50 W/lin. ft., or the wattage limit of the system's circuit breaker, or the wattage limit of other permanent current limiting devices on the system.

Other = The wattage of all other luminaires and lighting, sources not covered above and associated with interior lighting verified by data supplied by the manufacturer or other approved sources.

EXCEPTIONS:	1. The connected power associated with the following lighting equipment is not included in calculating total connected lighting power.
	1.1. Professional sports arena playing field lighting.
	1.2. Emergency lighting automatically off during normal building operation.
	1.3. Lighting in spaces specifically designed for use by occupants with special lighting needs including the visually impaired and other medical and age-related issues.
	1.4. Casino gaming areas.
	1.5. General area lighting power in industrial and manufacturing occupancies dedicated to the inspection or quality control of goods and products.
	1.6. Lighting in sleeping units, provided that the lighting complies with Section R404.1.
	1.7. Mirror lighting in dressing rooms.
	2. Lighting equipment used for the following shall be exempt provided that it is in addition to general lighting and is controlled by an independent control device:
	2.1. Task lighting for medical and dental purposes.
	2.2. Display lighting for exhibits in galleries, museums and monuments.
	3. Lighting for theatrical purposes, including performance, stage, film production and video production.
	4. Lighting for photographic processes.
	5. Lighting integral to equipment or instrumentation and is installed by the manufacturer.
	6. Task lighting for plant growth or maintenance where the lamp efficacy is not less than 90 lumens per watt.
	7. Advertising signage or directional signage.
	8. In restaurant buildings and areas, lighting for food warming or integral to food preparation equipment.
	9. Lighting equipment that is for sale.
	10. Lighting demonstration equipment in lighting education facilities.
	11. Lighting approved because of safety or emergency considerations, inclusive of exit lights.
	12. Lighting integral to both open and glass enclosed refrigerator and freezer cases.
	13. Lighting in retail display windows, provided the display area is enclosed by ceiling-height partitions.
	14. Furniture mounted supplemental task lighting that is controlled by automatic shutoff.
	15. Lighting used for aircraft painting.

[Statutory Authority: RCW 19.27A.025, 19.27A.160, and 19.27.074. WSR 16-03-072, § 51-11C-405051, filed 1/19/16, effective 7/1/16. Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. WSR 13-04-056, § 51-11C-405051, filed 2/1/13, effective 7/1/13.]

Reviser's note: The brackets and enclosed material in the text of the above section occurred in the copy filed by the agency.

RCW 19.27A.025, 19.27A.160, and 19.27.074. WSR 16-03-072, § 51-11C-405051, filed 1/19/16, effective 7/1/16. Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. WSR 13-04-056, § 51-11C-405051, filed 2/1/13, effective 7/1/13.