CLD Lighting Design Codes, Standards & Regulations 3

Question 1

The Americans with Disabilities Act (ADA) Standards for Accessible Design set a maximum protrusion limit for wall-mounted luminaires. What is that limit?

Accepted Answer

4 inches from the wall surface

Answer

ADA standards allow wall-mounted objects, including luminaires, to protrude no more than 4 inches into circulation paths between 27 and 80 inches above the floor.

Question 2

Which NFPA standard governs the installation and performance of emergency and standby power systems that supply egress lighting?

Accepted Answer

NFPA 110

Answer

NFPA 110 covers the requirements for emergency and standby power systems including generator sets that power egress lighting.

Question 3

IES TM-21 is used in conjunction with LM-80 test data to accomplish what?

Accepted Answer

Project long-term LED lumen maintenance beyond the tested period

Answer

IES TM-21 provides a method to extrapolate LED lumen depreciation data from LM-80 testing to predict long-term performance.

Question 4

The Illuminating Engineering Society's RP-8 standard covers lighting recommendations for which exterior application?

Accepted Answer

Roadway and parking facility lighting

Answer

IES RP-8 is the Recommended Practice for Design and Maintenance of Roadway and Parking Facility Lighting.

Question 5

Under the Dark Sky ordinances modeled after IDA/IES Model Lighting Ordinance (MLO), which metric is commonly used to limit light trespass at property lines?

Accepted Answer

Illuminance in foot-candles at the property line

Answer

MLO-based ordinances typically set maximum foot-candle levels measurable at the property line to control light trespass.

(CLD) Certified Lighting Designer Practice Test

(CLD) Certified Lighting Designer Practice Test

CLD Lighting Design Codes, Standards & Regulations 3