Step touch bonding of metal chain link fences around transformers

I

Isaiah

Senior Member
Location
Baton Rouge
Occupation
Electrical Inspector
We have power transformers 13.8kV-480V with 6’ metallic chain link fences installed around them. The fence posts are installed on top of the concrete containment area and none are in direct contact with the earth. Is is necessary to bond the fence to a grounding electrode?


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Isaiah said:
We have power transformers 13.8kV-480V with 6’ metallic chain link fences installed around them. The fence posts are installed on top of the concrete containment area and none are in direct contact with the earth. Is is necessary to bond the fence to a grounding electrode?


Enviado desde mi iPhone utilizando Tapatalk
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Are these transformers with open air terminals? or, are they completely metal enclosed padmount style transformers?

Padmount transformers are not a concern for step/touch potential as the energized parts are surrounded by a grounded metal surface.
 
jim dungar said:
Are these transformers with open air terminals? or, are they completely metal enclosed padmount style transformers?

Padmount transformers are not a concern for step/touch potential as the energized parts are surrounded by a grounded metal surface.
Click to expand...

They are pad mounted, completely enclosed…so no equipotential, ‘step-touch’ bonding required, correct?


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