NEC 230.82 question

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kromertma

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I am in the Army in a contingency environment. We are still bound by the NEC to ensure safety compliance. I am trying to verify my understanding of 230.82. Situation is this: Two structures are fed from a distro panel. The distro panel is fed by an MTS. The MTS has incoming commercial (750KVA xfrmr) on one side and a back-up generator on the other side. The question pertains to the commercially fed side. Does there need to be another means of disconnect between the xfrmr and the MTS. The person I am working with states that per 230.82 there should be another distro panel in that run. For some reason that does not make sense. Am I misreading something?

Thanx,

Mark
 
If your manual transfer switch is being supplied by the utility, then it is considered the first means of disconnect and is now the service disconnect. It will be necessary to treat it as a service disconnect.

BTW:
It is not on the supply side of the service disconnect as per 230.82, it is the service disconnect (or should be).
 
Image to my question

Image to my question

Had to figure out how to add image:

editphoto.php


Not sure if it will work but had to give it a shot,

Thanx,

Mark
 
Pierre C Belarge said:
If your manual transfer switch is being supplied by the utility, then it is considered the first means of disconnect and is now the service disconnect. It will be necessary to treat it as a service disconnect.

BTW:
It is not on the supply side of the service disconnect as per 230.82, it is the service disconnect (or should be).
Click to expand...

So if I understand you correctly and read 230 correctly, I am not required to have any kind of protection between the source and the service disconnect? But if I decide to install something it must me a current limiting device of some sort.
 
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