[TowerTalk] Run conduit up the tower?

[rkstover at mchsi.com]

<<Is it a good idea to run, say, 3" PVC conduit up the tower to 
accommodate feedlines and rotor cable and protect them from birds, 
squirrels, etc.?>>

Everything you hang on the tower cuts into the windloading capabilities. Most 
of the literature I've read on Ham Radio style towers load calculation specify 
1, 1/2 inch feed line per face. Any more than that and you start cutting down 
on the load the tower can hold up.