Substation Grounding: Extend grid to cover adjacent cell tower?
Substation Grounding: Extend grid to cover adjacent cell tower?
(OP)
We have a cell tower in a 15ft X 10ft fenced area with a buried horizontal ground conductor 2ft outside the fence and ground rods connected to it and the fence. This cell tower site has control boxes and equipment that need to be maintained by Ma Bell personnel. This fence is within 15ft of our substation fence and not tied to our substation grid. The WinIGS program shows a steep potential gradient drop of just ouside our fence. The first 30ft of the gradient is very steep at about 100v per ft. Question: Do we tie the corners of the cell tower fence to our substation grounding grid or not? If we do, then we have extended our "equipotential mesa" to include the cell tower area (and the area between the two fences) to protect Ma Bell's personnel during a GPR event. If we connect it, are there other concerns such as "transferred voltages" and if so do we leave their fence separate from our's. The cell tower is on our property.






RE: Substation Grounding: Extend grid to cover adjacent cell tower?
RE: Substation Grounding: Extend grid to cover adjacent cell tower?
RE: Substation Grounding: Extend grid to cover adjacent cell tower?
Interesting issue.Can you please upload the site plan showing cell tower grid, your grid and transformer location with approximate distances for everybody's use?
RE: Substation Grounding: Extend grid to cover adjacent cell tower?
Bill
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"Why not the best?"
Jimmy Carter
RE: Substation Grounding: Extend grid to cover adjacent cell tower?
Model the connected grounding systems in WinIGS and see if there are any step- or touch-voltage problems.
RE: Substation Grounding: Extend grid to cover adjacent cell tower?
RE: Substation Grounding: Extend grid to cover adjacent cell tower?
Did the analysis with the grids interconnected include the 5' X 5' square meshes at the cell site?
RE: Substation Grounding: Extend grid to cover adjacent cell tower?