[TowerTalk] Conduit installed in foundation slab

[Brian Amos]

It is such a minimal intrusion I don't even design for it when I design a
foundation. Really the outside edges of the concrete and the embedded steel
carry almost all of the load from a tower so the center portion of a
foundation doesnt matter. In fact my tower foundation is only thick enough
to cover the top and bottom steel reinforcement in the center.  I have seen
guys use 4" sewer pipe for their tower conduit with no problems.

Brian
KF7OVD
On Dec 8, 2014 2:07 PM, "Blair (VE3ZBM)" <ve3zbm at rogers.com> wrote:

> Good afternoon, All.
>
> I have not found a satisfactory answer to whether or not a 2 or 3"
> schedule 40 PVC conduit, installed ~3' below grade and into a 5' x 5' x 4'
> deep steel-reinforced free standing tower foundation will derate or harm
> the slab's overall integrity. I am preparing for my new tower (to be
> installed next spring) and would like to bring the cable feeds up inside
> the tower base thereby eliminating tripping hazards and other aesthetic
> concerns.
>
> Thanks in advance,
>
> Blair VE3ZBM
>
> Sent from my iPhone
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