LLC Landscape Lighting Safety & Code Compliance 4

Question 1

Under NEC Section 210.8, GFCI protection is required for all 125-volt, 15- and 20-ampere receptacles installed in which outdoor location?

Accepted Answer

All outdoor receptacles accessible to grade level

Answer

NEC 210.8(A)(3) requires GFCI protection for all 125V, 15 and 20A outdoor receptacles that are accessible to grade level.

Question 2

A landscape lighting conductor shows a resistance of 2 ohms for a 100-foot run. Applying Ohm's Law, what voltage drop would occur at 2 amps of load?

Accepted Answer

4 volts

Answer

V = I × R; 2 amps × 2 ohms = 4 volts of drop across the run.

Question 3

What is the primary safety hazard addressed by using equipment listed for 'wet locations' rather than 'damp locations' in a landscape lighting installation?

Accepted Answer

Risk of electric shock from water ingress

Answer

Wet-location listed equipment prevents water ingress that could cause electric shock hazards in fully exposed outdoor environments.

Question 4

An inspector finds landscape lighting wire nuts used on direct burial splices without an enclosure. This is a violation because:

Accepted Answer

Splices must be in a Listed enclosure suitable for the location

Answer

NEC 300.15 requires splices and taps to be made in Listed enclosures suitable for the location, regardless of voltage level.

Question 5

A Listed landscape lighting transformer is rated 300VA. What is the maximum wattage load that should be connected to it?

Accepted Answer

240 watts (80% of rating)

Answer

Best practice and many manufacturer guidelines recommend loading a transformer to no more than 80% of its rated VA to prevent overheating and extend service life.

(LLC) Landscape Lighting Certification Practice Test

(LLC) Landscape Lighting Certification Practice Test

LLC Landscape Lighting Safety & Code Compliance 4