Can i Use switchgear as a mounting surface

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danpost42

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Is it ok to mount a 800 amp switch on the side of a 1600 amp service i was told i was going to be doing this job but it dosnt sound right to me.
I havnt been to the job but from what i was told it is outdoor on a transformer pad. I was just wondering if you can use a panel to support another panel I have never done it but i cant find a violation
 
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I can't cite a code article for this being a violation, but I would think it would be a questionable issue. I guess its kind of luck supporting a conduit off of another conduit. For what its worth, if it were me I'd rather mount the switch independently rather than on the side of the switchgear.
 
I havnt been to the job but from what i was told it is outdoor on a transformer pad. I was just wondering if you can use a panel to support another panel I have never done it but i cant find a violation.
 
If you're to do it, at least be certain that you are securing to support framing of the existing gear and not just a piece of sheet metal. There could be a violation in access to the existing equipment as well. I'd definately look at independent support options first.
 
Might also want to check with AHJ. In Washington state, I had to have an independent stand for my disconect on rooftop units. Utah and Nevada, screw the disco on the side and let's go!
 
110.3(B) would be the rule I would look at. The mgf may say the 1600 amp gear is not designed for the extra weight. It could be a problem in a earthquake.
 
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