Code Compliant ATS Location?

[don_resqcapt19]

I will hold to what I stated about the ATS. It is marked "service rated ATS" ...

If that is what it actually says, then it doesn't mean anything. The rule would require marking that says "suitable for use as service equipment".

 

[Smart $]

I think it is compliant. You have two services, as permitted under 230.2(A)(4). Then, per 230.71 and 230.72,

• The "normal service" is allowed to have up to six disconnects, and those must be grouped together (it appears that this installation has only one), and
• The "optional standby service" is allowed to have up to six disconnects, and those must be grouped together (it appears that this installation has only one).

But nothing requires the disconnects associated with one service to be grouped with the disconnects associated with the other service.

I think you may be right. I also think most inspectors will not see it that way without some good convincing.

If this second service is permitted he still has violation of 230.2(E). He needs "a permanent plaque or directory shall be installed at each service disconnect location denoting all other services, feeders, and branch circuits supplying that building or structure and the area served by each".

For the sake of this discussion let?s say that the transfer switch is okay.
I only see one service supplying the meter base and only one meter. This is only one service serving this building. If the transfer is service rated and meets the UL Standard then we have one service disconnect outside with a disconnect for the feeders from the generator but the other service disconnect is inside which is in violation of 230.72.

I agree, this is clearly one service with non grouped disconnects, as I stated previously. I don't think this one is even debatable.

It sure sounds like the OP is using one of the two panels for standby power, I would say it's compliant with 230.72(B). Besides, if that is not the case, the panel in question would still have it's original OCPD intact that could be used to disconnect it from normal and standby power.

Let's clear this up so there is no doubt. 230.2(A)(4) allows additional services to supply optional standby systems. The key here is that the "additional service" is the power source on standby, and not the source of normal power. For the case here, the utility source supplies normal power while the generator source supplies standby power. The utility source connected to the ATS is not an "additional service".