I am not talking about the taps but the actual grid. Assuming that since the grid is receiving the fault current at two seperate points, the conductor ampacacity needed for the actual grid determined with IEEE-80 can be halved. I know a company that does this but my gut tells me that this isn't...
Is this kosher? If you are designing a ground grid and all the equipment in the substation is tapped to two different spots on the grounding grid, can you choose the ground grid conductor to have an ampacity of half the total fault current. For example, you have 30 kA available or are...