Part V of NEC Art. 250 provides the requirements for bonding. So what is bonding, and why do we do it? The definition in Art. 100 is short: “Connected to establish electrical continuity and conductivity.” This seems vague, unless you think about it or read related definitions such as “bonding jumper.” It means using a metallic conductor to make a conductive path between metallic objects. Basically, you are shorting them together. You can’t do this with a ground ...

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