Protecting GEC against physical damage

P

Pwinsor

New User
Location
Alaska
Occupation
Wireman
Just finished our transformer craft certification (3rd year wireman class), and we all got scored 50% on raceway. I think it's related to protecting the grounding electrode conductor. Ran it from a knockout at the bottom of the transformer with a chase nipple. The wire runs up to the wall to lugs labelled "water pipe" and "building steel". I protected the wire with schedule 80 PVC and so did everyone else in my class. Is this correct? Was i supposed to put it in PVC under the transformer as well?

Thanks!
 
Pwinsor said:
Ran it from a knockout at the bottom of the transformer with a chase nipple.
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Was it a metal chase nipple? Technically the GEC needs to be bonded to a nipple made of ferrous metal. SCH80 PVC is permitted for protection of the GEC when it is subject to physical damage. If not subject to physical damage it can be run exposed in free air when #6 or larger.

Welcome to the Forum. :)
 
infinity said:
Was it a metal chase nipple? Technically the GEC needs to be bonded to a nipple made of ferrous metal. SCH80 PVC is permitted for protection of the GEC when it is subject to physical damage. If not subject to physical damage it can be run exposed in free air when #6 or larger.

Welcome to the Forum. :)
Click to expand...
Also, any ferrous method would have to be bonded on each end. that's why I always use PVC if the GEC needs protection.
 
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