Services & DistributionQuestion 13 of 521
What is the function of the main bonding jumper at a service?
a.It connects two ground rods together
b.It connects the grounded (neutral) conductor to the service equipment enclosure
c.It replaces the grounding electrode conductor
d.It bonds the neutral to the water pipe
Explanation
The main bonding jumper connects the grounded (neutral) conductor to the metal service disconnect enclosure/equipment grounding path at the service, per 250.24 and 250.28. It is not a rod-to-rod connection, does not replace the GEC, and is not the water-pipe bond.
Law Reference: 2023 NEC §250.28Practice all 521 questions free — no signup required.
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