Panel identification

[mr4160volts]

Is there any Code reference that requires the main or back-fed breaker to be identified as to where it's being fed?

 

[templdl]

Is there any Code reference that requires the main or back-fed breaker to be identified as to where it's being fed?

Is the breaker marked line and load or not? If not then either end can bee feed.

 

[Little Bill]

Is the breaker marked line and load or not? If not then either end can bee feed.

I think he is asking whether or not you have to identify the source of the power that is feeding the backfed breaker or main breaker.

 

[templdl]

I think he is asking whether or not you have to identify the source of the power that is feeding the backfed breaker or main breaker.

Good point. In any event the breaker must be marked as being the main to your point.

 

[Little Bill]

Good point. In any event the breaker must be marked as being the main to your point.

I haven't looked it up in the NEC, but I know that one of the AHJ here requires panels to be marked "not the only service" or "mulitple services" if there is more than one panel in a commercial/industrial environment. Something similar to the requirements when Solar is used along with the grid.

 

[Volta]

Field Identification Required.
(A) ...
(B) Source of Supply. All switchboards and panelboards supplied by a feeder in other than one- or two-family dwellings shall be marked to indicate the device or equipment where the power supply originates.