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bonding/grounding steel floors

Merry Christmas
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Plate steel was installed over existing wooden floors in the factory I work at. I could not find any code articles about bonding/ grounding for this situation. Should This be handled as if it were grounding/ bonding building structural steel and or non electrical eqipment? doug.yehle@techindustries.com
 

pierre

Senior Member
Re: bonding/grounding steel floors

Hello Doug,

Lets say you had a concrete floor in the ground floor of a building in contact with the earth, you would not purposely bond that. But... I think this is different, I can see you are concerned as I would be.

250.4(A)(4) Bonding of Electrically Conductive Materials and Other Equipment. (2002 NEC)

I would reference this section if anybody should ask why you would want to do such a 'silly thing'.

Good Luck,

Pierre
 

don_resqcapt19

Moderator
Staff member
Location
Illinois
Occupation
retired electrician
Re: bonding/grounding steel floors

Doug,
Is the steel plating "likely to become energized"? If so bond it.
Don
 

bennie

Esteemed Member
Re: bonding/grounding steel floors

The floor is probably grounded if there is any machines mounted on it.

If there is any sensitive systems, you have one good ground plane.
 
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