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Cell tower structural work

Question asked by apurvadave on Aug 24, 2020
Latest reply on Oct 7, 2020 by chiefns830

I have existing monopole tower for antenna which is grounded and bonded.

 

Now the structural engineer is going to place long shaft metal plate metallic on each side of the monopole tower by drilling holes in tower and bolted to outside of the tower frame so that tower structure is sturdy.  Exactly like following link:

 

Tower Reinforcement Solutions - AF Tower   

or

 

Cell Towers - Structural & Steel Products 

 

 

Does the new shaft metal plate need to be bonded to the tower? I looked at NEC 2014 section 250.4 but confused. It is likely to get energized since cables are going to antenna. Also would bolts count as being bonded or it needs wire?

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