One method is to run individual wires in a conduit system such as intermediate conduit rigid.
Running conduit up side of house to roof.
Rigid conduit with an outside diameter of 3 4 in and a fish tape long enough to reach through the buried pipe.
I am looking to add a power source and lighting to the shed running the 2 5mm cable along the fencing approx.
Because i and my employess can run conduit about as fast as protected nm conductors we generally run conduit.
The boxes connectors and conduit form a wire enclosure system called a raceway.
Special connectors are used to secure conduit to boxes and to join lengths of conduit together to form long straight runs or bends.
The last category with the least amount of derating is for a distance of 12 inches to 36.
My electrician had to run a line from one side of the house to the other and ended up having to punch down into the roof on one side and pop up out on the other side so the conduit 90 degree box or whatever it is is on each side.
Use outdoor silicone caulking around the conduit at the structure in order to hold the conduit into place and keep water from going inside your structure.
What if you are 4 feet off the roof.
I hope some of this info was helpful.
Running wires inside rigid conduit.
Mounting conduit on existing flat roof any time you see a thin black line to the left of a paragraph in the nec it means that it s new or the wording has changed.
Also the holes for the ceiling boxes are 3 3 1 4 and we use 1 1 2 round mud rings for 4 square metal boxes.
Table 310 15 b c gives the derating factors where one is running conduit and wire above a roof.
However the channel randy was talking about is a pretty cool idea as well.
To run the wires inside rigid conduit you ll need a hacksaw a pipe bender capable of bending 1 2 in.
Conduit always terminates at some type of electrical box or at fixed equipment that also serves as a box.
Slide a short piece of schedule 40 pvc conduit through the structure s wall so that you can attach an lb fitting onto it.