Is it OK to attach a ground conductor this way?

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  #1  
Old 07-31-15, 07:14 AM
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Is it OK to attach a ground conductor this way?



Any reason to suggest this way be a bad idea? It is a "back to back" install so the box is open on both ends, hence there isn't a "back" to attach a ground conductor to.
 
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Old 07-31-15, 07:36 AM
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That screw attaches the two extension boxes, you cannot use that screw for grounding. I've never seen two extension boxes used quite that way before and only assume that it would be acceptable. You probably need to drill and tap a dedicated hole for a grounding screw or use an approved grounding clip. Will there be receptacles facing into each room? How will you attach an EGC to each receptacle?

Also, the ground wire pictured must enter the box through one of the conduits and not through the face of the box.
 
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Old 07-31-15, 08:56 AM
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Ground needs to be under a dedicated screw. One not used for any other purpose.
 
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