[TowerTalk] Need Help For Cable Runs To Tower

[Jim Lux]

On 5/25/13 1:02 PM, Eugene Jensen wrote:
> Drilling holes in conduit for drainage is not a good ideal. It going to be full of water in time. As long as your trench is 18 " or deeper you could use  UF #6-2 with ground  to keep the voltage drop under 3%. And the run your control/Rf cables in the same conduit, It you using hard line just bury it in the trench. 73 and good luck with your tower project. Gene AA4VX
>

CHeck your local codes, if you're concerned. around here (Thousand 
Oaks), UF is not allowed for direct burial.  Underground has to be in a 
raceway (code speak for conduit).  There's various burial depths 
depending on the kind of conduit (plastic, thinwall metal (EMT), or 
thick wall metal) and whether it's under a concrete slab or similar. 
The depth is all about damage to the wires (since frost is a non issue).