building steel

[tim89s]

In the building I am working in there are steel columns that are attached at the bottom by anchor bolts at the top they are attached to wood framing. Would these columns be considered building steel? I am wondering if I can bond a transformer to them.

Thank you
Tim

 

[iwire]

Does this steel meet any of the requirements in 250.52?

250.52(A)(2) Metal Frame of the Building or Structure. The metal
frame of the building or structure that is connected to the
earth by any of the following methods:

(1) 3.0 m (10 ft) or more of a single structural metal member
in direct contact with the earth or encased in concrete
that is in direct contact with the earth

(2) Connecting the structural metal frame to the reinforcing
bars of a concrete-encased electrode as provided in
250.52(A)(3) or ground ring as provided in 250.52(A)(4)

(3) Bonding the structural metal frame to one or more of
the grounding electrodes as defined in 250.52(A)(5) or
(A)(7) that comply with 250.56

(4) Other approved means of establishing a connection to
earth

 

[tim89s]

Ahh. If I just would of looked in the code book before asking the question. Sorry about that. Thank you