LLC Landscape Lighting Safety & Code Compliance 2

Question 1

Which NEC article specifically governs the installation of outdoor landscape lighting systems?

Accepted Answer

Article 411

Answer

NEC Article 411 covers lighting systems operating at 30 volts or less, which applies to most low-voltage landscape lighting.

Question 2

What is the maximum voltage permitted for low-voltage landscape lighting circuits under NEC Article 411?

Accepted Answer

30 volts

Answer

NEC Article 411 defines low-voltage lighting systems as those operating at 30 volts or less between conductors.

Question 3

A landscape lighting transformer must be Listed and marked with its rated output. What additional marking is required for line-voltage transformers used outdoors?

Accepted Answer

'Suitable for Wet Locations'

Answer

Transformers installed in outdoor locations must be Listed and marked as suitable for wet locations per NEC requirements.

Question 4

When installing landscape lighting near a swimming pool, which NEC article takes precedence for bonding and grounding requirements?

Accepted Answer

Article 680

Answer

NEC Article 680 governs all electrical installations in and around swimming pools and takes precedence over Article 411 in those areas.

Question 5

What minimum burial depth is required for rigid metal conduit (RMC) installed for landscape lighting under a residential driveway?

Accepted Answer

12 inches

Answer

RMC requires only 6 inches of burial depth under driveways for residential use, but standard open ground depth is 6 inches for RMC.

(LLC) Landscape Lighting Certification Practice Test

(LLC) Landscape Lighting Certification Practice Test

LLC Landscape Lighting Safety & Code Compliance 2