Forum Title: PV Disconnect and 6 Disconnect Rule
This seems to be a murky area between engineers, AHJ's, contractors and utilities and I am curious to anyones input.Does a Supply side connection of a PV system , as allowed on 690.64, and its associated PV AC Disconnect count toward the 6 disconnect rule?The scenario that I am curious about is a typical Northern NJ Multi- Tenant building where PSEG has 6 CT cabinets (metered) feeding (6) 400-600A disconnects that then feed meter banks for individual tenants. Typically one of these metered services is the House service (common area lighting, site lighting, etc) and the one that the PV array would be feeding. The supply side connection is made after the meter and before the main.Any experiences?
Category: General Electrical Discussion Post By: Jessica Lewis (Kennedy, PA), 03/23/2017
I say it counts for the simple reason, that if you such 6 switches off the power then should be off to all loads. Ob

- Cheyenne Plumbing & Heating Inc. (Leicester (town), NY), 03/25/2017

Ok, now what about when the PV array is tapped on the supply side of the main disconnect, shutting the main disconnect would de-energize all downstream loads from both sources (utility & PV)?

- Helen Evans (Palmer Town, MA), 03/25/2017

Yes again. No need to back feed the POCO lines. Think of a generator. Or servicing the meter base or overhead drop.

- Mitchell Vazquez (Flaxville, MT), 03/25/2017

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