Grounding and Bonding, Part 5

The last two of the five bonding related terms defined in Article 100 of the NEC seem like they would be very similar:

  • Bonding Jumper, Main
  • Bonding Jumper, System

But things are not always as they seem. How do these two types of jumpers differ, and why does that difference matter? The main bonding jumper connects the grounded circuit conductor and the equipment grounding conductor. The place it does this is at the service.

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