I'm planning to build a cinder block and veneer fence with wrought iron pillars in my yard, and I want to install lights on top of the pillars and a few electrical outlets for decorations. I've done some minor electrical work before, but I'm feeling a bit lost. Should I run conduit through the concrete footing or next to it, and then have a junction box where it enters the pillars? Also, I think I need to use 8 AWG stranded wire for such a long distance. Do I need to run a ground wire too, or can I just use the rebar in the concrete? Is it a good idea to tap into an existing outlet, or should I get my electrician to run a new line from the electrical panel?
3 Answers
Running the conduit through the footing is a better choice for a clean look and reduces the risk of damage later on. Ensure that your joints are well glued to prevent concrete from seeping in. Regarding grounding, yes, you definitely need a ground. As for tapping into existing outlets, it's usually okay as long as you don't overload the circuit, but keep in mind that outdoor setups should be GFCI-protected. Best to check your local codes to see exactly what applies to you!
Awesome, thanks for the clarification! It makes sense to keep it neat in the footing. I’m thinking of just having junction boxes at each pillar instead of running wires on the outside.
You probably don't need to go with 8 AWG for those lights and decorations unless you're using power tools or heavier equipment down the line. The current draw for lights is usually pretty low, so a smaller gauge might work fine. Just make sure you use a GFCI breaker since this is all outdoors. And you will definitely need junction boxes anytime you make changes or splices!
Are you sure there's a set limit for devices? I thought you could have multiple on the same circuit if it's residential!
That's good to know, I really don’t plan on anything too heavy. I’m just worried about extending the run because every pillar adds distance.
Stranded wire can actually be a good choice for running through conduit because it's easier to pull. Just remember that the typical practice is solid wire for permanent installations. But if you feel comfortable with stranded, just make sure it's rated for your use!
Solid is standard, true, but for some, strands are easier to manage, especially in tight spaces.
Good point about the flexibility! I guess it depends on the application but I get both when I buy. Thanks!
Just a heads up, you might want to check if there are limits on the number of devices you can have on one circuit in your local code. It's always good to be safe!