Originally Posted by Nomad
why the periodic J-box?
My proposal would be to closely follow the fence so that kids or other things are less likely to hang on the conduit, which would cause damage. Since as the conduit runs, the posts stick out in the way, this would require offsetting around the fence posts.
Code is 360 deg of bends in any one run of condut between pull points. this is so that you do not dammage the wires while pulling them in.
The most comfortable offset bend is 30 deg. Two are required per offset for a total of 60 deg per fence post.
If you are using PVC you probably will only find 40 deg bends. Making such a shalllow offset will be hard without a heat blanket. IMO a 2 x 4 that is itself not supported for 8 foot at a time would be damaged in a short time. that is why I suggested drilling the posts and running the conduit streight. for 3/4 conduit you would need a nice streight 1 1/4 inch hole.