6 switch rule for group metering

[ndc81167]

Iam Trying to find in the NEC the rules for 230.71 the tell us we need to have a main overcurrent device or can we have a non fused disconnect in front of the 6 main circuit breakers for group metering,..

 

[augie47]

You might be referring to 230.91. This has been used locally when a non-fuse disconnect was used as a service disconnect. The AHJ decided the meters/disconnects adjacent to the switch met 230.91.
It might be important to note most if not all non-fuse switches carry a 10k AIC rating.

 

[Dennis Alwon]

I would have thought if the disconnect was on the load side of the meter then it would need to be fused but the disconnect may not even be necessary with 6 handle rule.

 

[ndc81167]

230.91 refers to location,,,,, my question is if i get a service rated non fused disconnect (cold sequnced) (thats installed before the group metering) would
that be code compliant?... does the code require that disconnect to have overcurrent protection?

 

[augie47]

In our jurisdiction if it is in fact a "cold sequence switch" we consider that a POCO requirement and, as they lock it so that it is of no use as a occupant service-disconnect, we basically ignore it... but that;s here.