[TowerTalk] Grounding base slab and pier tower bases

[Nick Pair]

Hi Gary,
   
  The key words to your posting on exploding bases was the fact stated that the base section or bolts were the ONLY ground attached to the tower.
  I nor other have never stated that would be a safe application. The Ufer rebar combination was to be used in addition to a ground grid of wires and rods suitable for the soil conductivity of your local. You need current carrying capacity and the lowest possible impedance for your best protection.
  Also the type and method of concrete placement has a lot to do with its ability to resist cracking. A properly reinforced concrete base can be cracked and still be serviceable if the engineered amount of iron was used in cage. Cracked bases are not the norm for commercial monopole and triangular towers and they take a lot more hits system wide than amateur towers.
   
  If you can't have the best, you have to make what you have work to its ultimate potential.
   
  73
  Nick 
  WB7PEK

 				
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