Thanks everyone for the comments.
I knew that PG&E no longer requires a visible blade lockable disconnect on all
residential installations. I did not know that they still require them for
supply side taps until I started filling out the application for step 2 of the
NEM process. It sounds like no one has gotten a variance on this requirement,
so I probably won't try to.
All the best,Jerry Caldwell
On Wednesday, October 4, 2017 6:33 AM, August Goers <[email protected]>
wrote:
Hi Jerry -
This chart from PG&E may be helpful:
https://www.pge.com/includes/docs/pdfs/b2b/interconnections/AC-Disconnect.pdf
For all supply side connections, PG&E requires a fusible visible blade
lockable disconnect.
https://www.pge.com/includes/docs/pdfs/shared/customerservice/nonpgeutility/electrictransmission/handbook/060559.pdf
-August
*August Goers*
On Tue, Oct 3, 2017 at 7:25 PM, Jerry Shafer <[email protected]>
wrote:
> Jerry
> Historically the utilities require a bladed disco, we had one on a military
> base which required a breaker by the base but we also were required to
> install a visible fused disco no breaker because is approved by that
> utility. Seeing is Believing when it comes to discos.
> Jerry
>
> On Tue, Oct 3, 2017 at 3:16 PM, Gary Willett <[email protected]
> >
> wrote:
>
> > Jerry:
> >
> > I don't know about PG&E, but here in Texas, a VLLD (Visible Lockable
> > Labeled AC Disconnect) is required for the PV system AC disconnect. They
> > want to see a switch on which it can be seen that it is off with the
> > dead-front cover closed, and that can be locked-out using their lock in
> the
> > off position. These requirements usually are fulfilled with a knife
> switch
> > type disconnect.
> >
> > The PV system AC disconnecting means has to have an SCCR (short circuit
> > current rating, in kA) that will handle the same available short circuit
> > current as the main service disconnecting means. Usually, that's readily
> > achievable with fuses.
> >
> > It may be possible to mount a service entrance rated circuit breaker in a
> > dedicated enclosure (visible/lockable) if PG&E says OK. But then you may
> > run into NEC 110.10 listing issues unless the enclosure's SCCR is based
> on
> > assembly testing by a NRTL to UL 508A.
> >
> >
> > Regards,
> >
> > Gary Willett
> > Icarus Engineering / Solar Services LLC
> >
> >
> > On 10/3/17 12:21 PM, Jerry Caldwell wrote:
> >
> >> Dear Wrenches with experience in PG&E territory:
> >> I'm installing a system with a line side tap. Can I use a small
> subpanel
> >> with room for only one circuit breaker instead of a fused disconnect?
> The
> >> NEM application, step 2 requires you to select a fused disconnect from
> >> their list of approved devices. Does anyone have experience with PG&E
> >> granting a variance on this requirement?
> >>
> >> Thanks in advance. Any help is appreciated.
> >> Jerry Caldwell510.205.2798
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