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  1. diyguy

    How many grounding blocks?

    Well, I think putting ground blocks right before entry into the house in addition to the ground block at the demarcation would be totally optional since I can't find it in the NEC. It probably wouldn't hurt though and if nothing else could help cutout any potential RF/EMI interference.
  2. diyguy

    How many grounding blocks?

    I live in an older house with cable wires running on the outside of the house. At the demarc box the cable is grounded before it enters a splitter. From the splitter cable is run 4 directions around the outside walls with some runs as long as 75 feet. Would I need to add grounding blocks to each...
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