InspectorElectric
Member
I have noticed that many of the multifamily dwelling I have been inspecting are basically using small multi-circuit disconnects for the house panels. The service conductors leave the meter base and are terminated directly into these small main lug disconnects. My understanding of 230.90 is that all ungrounded service conductors must have overload protection. My county however does not enforce this opinion, using Exception 3 in 230.90, so if the disconnect has less than 6 branch circuits it is allowed to exclude a main breaker.
My understanding is that we must have overload protection that is not derived from the breakers feeding the branch circuits of the panel itself.
Am I in error?
My understanding is that we must have overload protection that is not derived from the breakers feeding the branch circuits of the panel itself.
Am I in error?