Lighting

Question 1

Goals of California lighting regulations

Answer 1

Reduce peak energy demand
Reduce light trespass
Reduce excessive illumination
Improve poor uniformity
Reduce glare
Improve poor visibility

Question 2

Exterior lighting control devices features that meet regulation

Answer 2

Seven-day electrically driven, mechanical clock with trippers, astronomical dial and four-hour spring -wound storage

Seven-day or calendar year, electronic programmable time switch with astronomic correction and battery backup

Either of the above with a photocell (in lieu of astronomical correction). (Best bc auto compensates with seasons and has redundancy of time clock control if sensor fails)

Question 3

ELPA

Answer 3

Exterior Lighting Power Allowance

Question 4

CLP

Answer 4

Connected Lighting Power:
If CLP is less than ELPA number then your project meets requirements

Question 5

Parking Lot Lighting Efficiency

Answer 5

Open parking lots requires an efficacy of at least 60 Lumens per watt, which means that metal halide, high pressure sodium or efficient fluorescent sources must be used

Question 6

Exterior Building Grounds Lighting

Answer 6

Luminaires State regulations require that all exterior building grounds operate at more than 100 watts have an efficacy greater than 60 Lumens per watt.

Incandescent and mercury vapor lights greater than 100 watts are prohibited for exterior lighting.

Full size fluorescent, metal halide, high pressure sodium and most other high intensity discharge (HID) lighting sources have a greater than 60 Lumens per watt and meet regulatory compliance.

(Exceptions to lower wattage lights)

Question 7

Light Zone 1

Answer 7

Dark

Gov designated parks, rec areas, wildlife preserves.

Question 8

Light Zone 2

Answer 8

Low

Rural areas, as defined by the US Census

Question 9

Light Zone 3

Answer 9

Medium

Urban areas, as defined by US Census

Question 10

Light Zone 4

Answer 10

High

No state default location, local jurisdictions can determine.