400 amp Service Residential

[FREEBALL]

Up to six sets like this (plus exceptions for fire pumps, emergency, stanby...) is still considered only one service. One service can have up to six disconnecting means plus exceptions for fire pumps, emergency systems .... and a few other special items.

To be parallel the conductors must be joined together at both ends. Does not even need to be a panel bus or MB that they are joined by.

The complication with the OP is whether or not we can have additional service disconnecting means at separate structures supplied from the same service drop, lateral, or other point in the service, the run to the house is just fine if it were the only thing supplied.

Thankyou I knew there was a stipulation regarding parallel conductors. Thanx for the clarification. But looking through 230 it really doesn't say much about this type of application. I see the six disconnect rule and am familiar with that however from what I understand is that rule is there to provide a central point of disconnection in the event of an emergency for the building being served, not the out building that may have no relevance with the building being served (point of attatchment). The building that is being tapped too is concerning to,how would anyone know where to shut its power off externally if the service conductors terminate within the structure. Also will there be interconnection of water lines between the buildings, bringing up a neutral issue like paralleled neutral currents. I guess that signage would need placed regarding disconnection means and feeder origination and atleast a disconnect on the outside of the out building. I think POCO would be more informative on this question since its their unprotected conductors at risk. just my thoughts thanx.

P.S. I have run into some services that have 2 barrel lugs on load side of meter 1 feeding the structure its attatched to and the other in conduit to garage.

 

[kwired]

P.S. I have run into some services that have 2 barrel lugs on load side of meter 1 feeding the structure its attatched to and the other in conduit to garage.

That kind of setup is specifically permitted by 230.40 exception 3

But in the absence of that exception I really don't see why it isn't allowed anyway. 230 parts II and III which are for overhead/underground service conductors make no mention of limitations of supplying only one service, the part that does say this is in part IV which is for service entrance conductors.

I think there is some confusion in part IV and the intention is that only one "set" of service entrance conductors is permitted at any building supplied by a service, this "set" may be six conduits or cables feeding six disconnecting means.

If they really wanted to limit a service drop or lateral to supply only one building I think this wording doesn't belong in part IV but rather in parts II and III.

 

[FREEBALL]

I agree and whos to say you don't use stacked lugs from the load side of the meter it would still be the same. Now keep in mind we are talking about a meter base that provides accomodation of bolted lugs and not your normal meter base with wing lugs. Its one service drop and the questionable taps are still outside of the structure, which is what the NEC is most concerned about, from what I gather.

 

[iwire]

Its one service drop and the questionable taps are still outside of the structure, which is what the NEC is most concerned about, from what I gather.

:lol:

You should put that in your advertising.

'We make sure our questionable work is outside the building'​

 

[electricalist]

 

[MasterTheNEC]

Of course I would have to red tag this installation.... [200.6 (A) and (B), which ever is applicable]:lol:

 

[kwired]

Of course I would have to red tag this installation.... [200.6 (A) and (B), which ever is applicable]:lol:

The top photo appears to have conductors leaving via the bottom wall of the enclosure. The bottom photo doesn't have any wiring method leaving the bottom of the enclosure. Are they the same installation?

 

[MasterTheNEC]

The top photo appears to have conductors leaving via the bottom wall of the enclosure. The bottom photo doesn't have any wiring method leaving the bottom of the enclosure. Are they the same installation?

not sure as I was just being humorous ...but I only inspect what I can see so the picture with the cover off is FAILED...lol...the one with cover on, call back for a new inspection...:lol:

 

[MasterTheNEC]

The top photo appears to have conductors leaving via the bottom wall of the enclosure. The bottom photo doesn't have any wiring method leaving the bottom of the enclosure. Are they the same installation?

Being that the top shows the power is on, then it is the after photo....the bottom is the before photo as it shows the breaker off....just playing assumption games but I think it is the same piece of equipment.

 

[kwired]

Being that the top shows the power is on, then it is the after photo....the bottom is the before photo as it shows the breaker off....just playing assumption games but I think it is the same piece of equipment.

So it is the after and before photos instead of before and after