Main Disconnect

[rmeier2 (Robert Meier)]

@Glenn_Noska

I disagree, " 230.91 … or shall be located immediately adjacent thereto.", means the switch could immediately feed an unswitched fuse box.

You lost, me but I think that Mr. Whitt cleared it up.

[pabernathy (Paul Abernathy, CMI®, CMECP® Electrical Code Academy,Inc.)]

Hey guys,

It is not typical set up these days to see service disconnect enclosures and overcurrent protection separate…but back in Mr.Whitts day (snicker) it was common. The NEC allows the aforementioned setup[230.91]…just be aware of the proper grounding/bonding specification and applications per 250.80.

[gkeene (Greg Keene, CMI)]

Question on this … if the neutral and ground were NOT bonded in the main disconnect (but the ground was bonded to the box and the system ground), would the neutral and ground be allowed to be bonded in the “subpanel”? The neutral is just passing through the main disconnect. I have only seen this once, but wondered.

[jjimenez (Juan C. Jimenez)]

The grounded conductors must be bonded to the enclosure and egcs at the service equipment.

[jpope (Jeffrey Pope, CMI)]

@gkeene

Question on this … if the neutral and ground were NOT bonded in the main disconnect (but the ground was bonded to the box and the system ground), would the neutral and ground be allowed to be bonded in the “subpanel”? The neutral is just passing through the main disconnect. I have only seen this once, but wondered.

The neutrals cannot be grounded (i.e. bonded to grounding-equipment or grounding-conductors) at any point past the service equipment.

[gwells (George Wells, CMI)]

@rcleland

If indeed the panel in the basement is a Sub Panel, then its incorrect since the grounds and neutrals are not on their own bus bars. I was under the inpression that the panel in the basement was still the service equiptment panel, not a sub panel.

Based on your statement “The house has the Main disconnect located in the garage”, the service is in the garage and the panel in the basement is a sub-panel.