Grid Tapped AC Disconnect Neutral to ground Bond

[NomadicSolarTech]

Probably a redundant question these forums, but I shall ask anyways.

Ungrounded SolarEdge Inverter w/ Optimizers. From Inverter to AC disconnect ( whether knifeswitch or Breaker) you have your 4 wires.

You are Tapping with an Insulation-piercing Tap Connector on the Load side of the meter. In the meter can, which would tell you it is the Line side of the main Breakerbox.

Do you land the Neutral to Ground, or install a seperate busbar for the ground wire coming from the inverter.

If you land them seperate. Do you run a ground into the meter can and land it directly on the #4 Bare, or the second termination point( depending on the Brand) on the Neutral lug.

[SunEagle]

Probably a redundant question these forums, but I shall ask anyways.

Ungrounded SolarEdge Inverter w/ Optimizers. From Inverter to AC disconnect ( whether knifeswitch or Breaker) you have your 4 wires.

You are Tapping with an Insulation-piercing Tap Connector on the Load side of the meter. In the meter can, which would tell you it is the Line side of the main Breakerbox.

Do you land the Neutral to Ground, or install a seperate busbar for the ground wire coming from the inverter.

If you land them seperate. Do you run a ground into the meter can and land it directly on the #4 Bare, or the second termination point( depending on the Brand) on the Neutral lug.

I am not sure. What does your POCO and Solar Contractor say concerning are the NEC requirements for your area?

[NomadicSolarTech]

I am not sure. What does your POCO and Solar Contractor say concerning are the NEC requirements for your area?

Im actually a Tech/Installer. I have had one issue with an Inspector regarding Neutral to Ground Bonding in the AC Disconnect. Which I personally believe it to be a first termination point when tapping in a meter can. So I do so. I am just trying to get a consensus from experience as to what is most widely used and accepted in the installation world

[inetdog]

Im actually a Tech/Installer. I have had one issue with an Inspector regarding Neutral to Ground Bonding in the AC Disconnect. Which I personally believe it to be a first termination point when tapping in a meter can. So I do so. I am just trying to get a consensus from experience as to what is most widely used and accepted in the installation world

Generally accepted can change from one county to another, not to mention from one state to another. The common element is the NEC, with the possibility of local amendments in writing at adoption.

The NEC tell us that the main bond between ground (GES via the GEC) and neutral (as comes from POCO) shall take place at the service disconnect.
But it also allows that connection to be duplicated at the meter instead IF there is no metallic continuity between the grounded shell of the meter and the main panel.
If the bond is only at the meter, OTOH, there must be a bonding jumper or EGC between the meter can and the main disconnect.

This question rarely comes up because most POCOs across the country will not allow any customer connections (such as PV or even bonding jumper) to be inside their controlled area, which includes the meter and an disconnect that may be upstream of the meter.
If the connection is made to the wires on the load side of the meter but in the unsealed area of the main disconnect, then it is still a line side tap from the point of view of service disconnect and service OCPD (they go together). The neutral would have to be terminated on the POCO neutral wire, same way as the hot lines are tapped or connected to the neutral bus in the enclosure (a little iffy by some readings of the code.)
In general you will have a PV disconnect in the immediate area, and most but not all inspectors will want to see a separate ground/neutral bond at the PV disconnect, just as if it were a service disconnect (which, depending on your reading of the code, it may or may not be.) The PV disconnect does not have to be service rated, but it may still be counted as a service disconnect. Makes my head spin....

PS: With a combination meter/main enclosure, it can be very difficult to install a line side tap, because the connection from meter to breaker panel main is often by solid bus bars rather than wires.