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Concerning the electric code of wiring and grounding.
The usage of non common word/concepts.
As an example.
The word , bond / bonded / bonding.
Simply means to make a electrical connection that will continue to make electrical connection.
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There is also an important part of the definition that calls for the conductor to be up to the task. The NEC definition is rather straightforward,
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Bonding (Bonded). The permanent joining of metallic parts to form an electrically conductive path that ensures electrical continuity and the capacity to conduct safely any current likely to be imposed.
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(NEC, 2005 edition)
Bleeding off a small amount of static charge doesn't take a heavy conductor, but the current during a lighting induced surge or short circuit fault would explain why the codes call for a heavy gauge conductor between ground rods.