250.104(C) Building Steel

[A/A Fuel GTX]

Does the required bonding of structural steel in 250.104(C) make the steel a grounding electrode throughout the entire building?

 

[iwire]

More or less yes, usually you will use it as the electrode for all separately derived systems like transformers and generators.

 

[bphgravity]

Well, sort-of. If the bonding as required in section 250.104(C) satisfies one of the 4 requirements established in 250.52(A)(2), then YES.

 

[A/A Fuel GTX]

Is building steel ever an electrode as installed structurally without any electro-mechanical connection?

 

[A/A Fuel GTX]

Upon further reading, I see in 250.52(A) (2) (1) would be the only way that building steel itself would be considered an electrode.

 

[bphgravity]

Good job. It's always satisfying to find and answer your own questions !