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How-To

Installing Low-Voltage Path Lights

Illuminate your way outside with these easy-to-install lo-vo lights.

By Mike Litchfield, Michael McAlister
Lo-vo light kits typically contain screw-together parts: lamps, shades, riser posts, and ground stakes. At right: a coil of lo-vo cable and a power pack—a combination timer and transformer to step down voltage to 12v.

Low-voltage (lo-vo) lights make nighttime paths and walkways safer, are easy to install, and pose almost no shock threat. However, turn power off to the circuit you’ll be working on to be doubly sure. Always follow the installation instructions that come with your low-voltage kit. Kits usually include light assemblies, lo-vo cable, posts, ground stakes, and  timer-transformer power pack whose transformer reduces house current from 120v to 12v.

Low-Voltage Light Parts

Low-Voltage Light Parts

In the installation shown here, the power pack was mounted inside the garage, so PVC conduit was installed to protect the lo-vo cable as it traveled up the exterior wall into the garage. If you install the power pack outside, you probably won’t need conduit. If you do install conduit, start by inserting a fish tape down the conduit 1. Separate the two wires in the lo-vo cable, snip one, loop and tape the remaining wire to the fish tape, and pull the lo-vo cable through the conduit.

Place the lights where they’ll best illuminate a walkway or highlight a landscape feature, then run the lo-vo cable to them 2. Run cable along the ground and cover it with a few inches of mulch, or use a square-nosed shovel to create a shallow slot for the cable. Stomp on the shovel so it goes down 4 in., then rock the shovel from side to side to create a V-shaped slot 3. Press the cable into the slot 4; then stamp your feet to close the soil over the cable.

1  After installing PVC conduit, insert a fish tape down the conduit and pull the wires through.
1) After installing PVC conduit, insert a fish tape down the conduit and pull the wires through.

2  Place the lights and run the cable to each of them.
2) Place the lights and run the cable to each of them.

3 Use a square-nosed shovel to create a small slot to bury the cable.
3) Use a square-nosed shovel to create a small slot to bury the cable.

4  Press the lo-vo cable into the slot, making sure that it’s fully covered.
4) Press the lo-vo cable into the slot, making sure that it’s fully covered.

Each light fixture has two wire leads that terminate in sharp-pointed cable connectors. When snapped together, the connectors pierce the insulation of the lo-vo wires and supply each light with 12v current 5. To power the system, attach lo-vo cable wires to the terminals on the power pack 6. Mount the power pack securely to the wall and plug it into the outlet. Power packs are equipped with timers so that the lights come on and turn off whenever you like—whether you’re home or away 7.

5  Connectors are used to join the cable in the ground to each light.
5) Connectors are used to join the cable in the ground to each light.

6  Attach the wires of the lo-vo cable to transformer terminals. (Power is off.)
6) Attach the wires of the lo-vo cable to transformer terminals. (Power is off.)

7  Once hung, plug the power pack into a nearby outlet and set the timer.
7) Once hung, plug the power pack into a nearby outlet and set the timer.

Running Lo-Vo Cable Under a Sidewalk

The easiest way to run lo-vo cable under a sidewalk is to cut a piece of EMT pipe about 1 ft. longer than the sidewalk is wide. Hammer one end of the EMT shut so it creates a point, then use a hand sledge to drive the EMT under the sidewalk. To prevent closing the end of the pipe you hammer on, position a scrap of 234 against the pipe end as you hit it. When the pointed end emerges from the other side of the walk, use a hacksaw to cut it off. Then feed the lo-vo cable through the EMT pipe.

Running Lo-Vo Cable Under a Sidewalk

 


Wiring Complete, 3rd Edition

Excerpted from Wiring Complete, 3rd Edition (The Taunton Press, 2017) by Michael Litchfield and Michael McAlister

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