Redsy, I've seen fences used for conduit support. It works well with metallic conduit, but the spacing of the fence posts is normally too far apart for PVC conduit where supports are required every 3' for 1" and smaller and every 5' for 1 1/4" through 2". You will also need to install expansion joints if the calculated change in lenght is over 1/4". An outside run of PVC here in Illinois that is exposed to direct sunlight will may require two expansion fittings every 100'. Don
Re: Fence as support ?#85378 06/25/0310:27 AM06/25/0310:27 AM
I think strapping conduit near the bottom of a chain link fence would be putting the conduit where it could very likely be damaged by people stepping on it.
For argument's sake could pressure treated 4x4s or RR Ties be considered as support laid on the ground between posts? (the conduit would be strapped to it at appropriate intervals and to the posts) It would help protect the conduit in the spans between posts. Would that be acceptable to everyone?
[This message has been edited by Bill Addiss (edited 06-25-2003).]
Re: Fence as support ?#85380 06/25/0311:00 AM06/25/0311:00 AM
The pipe would be installed at ground level, so "support" per se, is not an issue. I'm also interested in attachment method to the fence, which would actually be used to "fasten" the conduit in order to keep it from moving.
Re: Fence as support ?#85381 06/26/0303:36 PM06/26/0303:36 PM
Our traffic lighting, and highway sign conduits are usually fastened to the main support pole with metal banding. As far as attaching to the bottom of the fence, would UV resistant ty-raps be acceptable. Can 110.3 be cited in either or both cases described above?
Re: Fence as support ?#85384 06/27/0307:12 AM06/27/0307:12 AM