Multi Occupancy Building adding 7th meter

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de2 said:
Why would POCO say no to a main service disconnect? Its is something that makes the building electrical system "more code friendly". I know 230.70 not required but installing main, no one should have a objection AHJ or Poco.
That's my opinion.
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My local POCO requires hot sequence metering when there are 6 or less disconnects. If there are more than 6 meters, they have to allow cold sequence metering, however they have requirements that everything be lockable/sealable. Other than the main disoconnect, some POCOs wont allow pull boxes or even LB's in unmetered conductors. You have to comply with their requirements in addition to the NEC requirements. Where you could get screwed here, with the 7th ungrouped meter plan, is the POCO could say they want all the metering in one location, which is at odds with the NEC.
 
GoldDigger said:
Some POCOs would feel that a main service disconnect upstream of the meters is an invitation to bypass the meter(s) and steal power.
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Did not think about that, makes sense.
But right now meters are tapped from a main service in a troug box.If anyone wants to steal its still easy to do:)
 
if POCO allows you to put meters downstream of a switch, this can be an additional option: 1. take out one of the meters. 2. put (2) 100A meters downstream of 100A switch. one meter for apartment and one meter for house panel. all wiring 100A.

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victor.cherkashi said:
if POCO allows you to put meters downstream of a switch, this can be an additional option: 1. take out one of the meters. 2. put (2) 100A meters downstream of 100A switch. one meter for apartment and one meter for house panel. all wiring 100A.

Sent from my Nexus 5X using Tapatalk
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I never thought about this, I think this is a good solution also. At the end 6 hand motion to turn the power of at the building.Logic of the 6 rule is maximum 6 hand motion to turn the power of the entire building.
 
I would just go with the green option in post #6 by getting special permission. Why change anything that's existing?
 
700A total of CB tapped from services conductors

700A total of CB tapped from services conductors

additional objection you can get (based to the sketch, option 1): you get 700A total of CB tapped from services conductors which maybe not acceptable for POCO on 500 MCM.
 
Either option in post 6 is still one service with 7 disconnecting means.

230.40 exception 4 is allowing a separate set of service entrance conductors to supply the circuits in 210.25. Is this not intended more for situations where separate service/service conductors is supplied to each occupancy yet there is a common area to be supplied as well? I don't think it was intended to allow for more then six service disconnecting means at one location.
 
victor.cherkashi said:
additional objection you can get (based to the sketch, option 1): you get 700A total of CB tapped from services conductors which maybe not acceptable for POCO on 500 MCM.
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The combined sum of the "two to six" OCPD's is allowed to exceed the ampacity of the service entrance conductors, see Exception #3 to 230.90(A)

Roger
 
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