I am currently working on my landscaping and I have a concrete pour planned for the front paths.
I'd like to rough in landscape wire for future lighting. What kind of wire should I use, how deep should I burry it?
The lot is ~50' wide and the house is set back maybe 30' from the road. I have various trees and perennial plants planned. Before the concrete path is poured I was thinking I should have home run wires from my line voltage outlet to each area of the landscape where I expect I might want a light. The plan later would then just be to junction or have left enough slack to lay that slack to the final light location.
I am in Canada but I expect the low volt code requirements are the same in the US.
I currently have 4" and 3" sleeves ( just random pieces of PVC/ABS I had lying around ) that are 2' buried below grade at all places where the concrete paths are separating areas of the site. These sleeves run under each piece of pathway. These are to future proof for handling line voltage (120) or potentially adding a line for a car charger in the future - as I could use the sleeves to push through tech cable or conduit.
There are currently trenches for irrigation (1" or 3/4" pvc) for sprinklers that are 8" below grade.
Adding another set of conduit for low voltage lighting could probably use the same trenches as the irrigation. The problem I face having never done low voltage lighting is where to terminate the conduit - since I don't know where the lights will live do I just home run conduit to where I expect to put a transformer and have a home run of conduit from each lighting area to that location? Once the low volt conduit is run to the general lighting area is that enough of a conduit path? Assuming I can feed the low volt wire to the light area some minor trenching afterwards seems reasonable given my lack of a landscape lighting plan. Would I just duct tape the end up of the conduit until a time when I am ready to do the lighting?
Now since the low volt conduit would also be crossing the 8" deep irrigation piping do I go under or above? If 6" is the NEC code for low volt wiring then above?
I've added my irrigation conduit plan. The site is ~50' across the front and the house is ~30' setback. The different colors in the irrigation are different zones.