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Joined: Sep 2018
Posts: 68
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Member
Joined: Sep 2018
Posts: 68 |
For protecting 100 pair cable you should be using a 6g solid copper or equivalent conductor going to a ground rod that's also bonded to your building ground. You should be able to test < 25 ohms to earth with a megger at the connection. If it's not that good, then your protectors might not function.
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