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SESK: Stuff Everyone Should Know · sesk.info/elec-bonding-def

In the NEC, bonding means doing what to metal parts?

Bonding joins metal parts into one conductive path.

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  1. Burying them in concrete
  2. Joining them into an electrically conductive path ✔
  3. Painting them green

Why: Bonding permanently joins metal parts so they form a conductive path. That path lets fault current flow back so a breaker can trip.

Huh, didn't know that: An effective ground-fault current path is described as a low-impedance conductive path designed to carry fault current.

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Why did the two metal boxes get along? They had a strong bond.
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References

Answer: Joining them into an electrically conductive path. Bonding permanently joins metal parts so they form a conductive path. That path lets fault current flow back so a breaker can trip.

  1. EC&M: Grounding vs Bonding Part 1 of 12 (Mike Holt) www.ecmweb.com/basics/bonding-grounding/article/20891808/grounding-vs-bonding-part-1-of-12
    The permanent joining of metallic parts together to form an electrically conductive path.
    Checked 2026-10-10.

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