Thread: Main or sub

Here is the situation 2 houses same property ones a rental. Service entrance at house 1, 125amp breaker in the panel goes to the panel for house 2. At house 2 there is a personal service meter (rental) right before the panel. I'm not sure if this is a main panel because of the service meter or is it still a sub? There is no main disconnect at house 2 panel with more than 6 breakers but it is bonded. Which one do I call out?

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Sorry I meant the neutral bus is bonded.

The panel at the rental unit, by NEC definition, is not a service and a disconnecting means is required. A few things come into play, when was this installed and under what code? Are there any metallic paths between the two structures? Does the rental unit have it's own GES or grounding electrode system?

It is a 1920 upgraded in 2005. There are no visible metallic paths. It does not appear to have its own GES.

Some utilities will only allow one service per lot.

All structures, with a few exceptions, require a GES.

A 3 wire feed with a rebonded neutral may have been legal at the time, 2005 NEC, but a GES would have still been required.