Re: [RE-wrenches] Rapid Shutdown for Off-grid systems

Friends: One of my favorite things about this list-service: The minute I think I have posted something really stupid, someone agrees with me. What a self-esteem builder! Thanks, Bradley! Here are two conclusions I think I am arriving at with this discussion: 1. The language in the

Re: [RE-wrenches] Rapid Shutdown for Off-grid systems

PV System Disconnect, not RSS Ray Walters Remote Solar 303 505-8760 On 2/1/22 7:04 PM, Jeremy Rodriguez wrote: Just a rated disco at the ground mount?   Labeled as the rapid shutdown switch? That’s  too simple! In Jeremy Rodriguez Solar Installation / Design Expert All Solar, Inc. 1453 M St

Re: [RE-wrenches] Rapid Shutdown for Off-grid systems

Just a rated disco at the ground mount? Labeled as the rapid shutdown switch? That’s too simple! In Jeremy Rodriguez Solar Installation / Design Expert All Solar, Inc. 1453 M St Penrose Colorado 81240 Sent by Jeremy's iPhone. Sorry for typos and shorthand. On Feb 1, 2022, at 6:49 PM, Lloyd

Re: [RE-wrenches] Rapid Shutdown for Off-grid systems

We’ve used multi-pole rated disconnects at the array. Best regards, Lloyd Lloyd Hoffstatter Sunstruck Consulting Get Outlook for iOS From: RE-wrenches on behalf of Jeremy Rodriguez Sent: Tuesday, February 1, 2022 8:31:16 PM To:

Re: [RE-wrenches] Rapid Shutdown for Off-grid systems

What about the PV circuits that leave the combiner and are ran on or in a building to the CC Jeremy Rodriguez Solar Installation / Design Expert All Solar, Inc. 1453 M St Penrose Colorado 81240 Sent by Jeremy's iPhone. Sorry for typos and shorthand. On Feb 1, 2022, at 4:07 PM, Brian Mehalic

Re: [RE-wrenches] Rapid Shutdown for Off-grid systems

For a ground mount PV system with a DC combiner, the PV source circuits are not in or on a building so RS doesn’t apply to them. And the definition of a charge controller in Art. 100 is in its relationship to batteries/storage, not really the charging source - fundamentally it’s there to

Re: [RE-wrenches] Rapid Shutdown for Off-grid systems

"A switch, outside of the building, opening the PV circuit to the power electronics, and functioning as the pv system disco and the rapid shutdown initiation device, should be all that is required." That is what I have found most inspectors will accept, but not all. A strict reading of the code

Re: [RE-wrenches] Rapid Shutdown for Off-grid systems

Sorry, forgot to state my previous comment was in regards to a ground-mount. Brian > On Feb 1, 2022, at 12:19 PM, William Miller wrote: > >  > Ray: > > Thanks for that input. I was hoping I was wrong. I looked for that > discussion in the archives but could not find it. > > William >

Re: [RE-wrenches] Rapid Shutdown for Off-grid systems

A switch, outside of the building, opening the PV circuit to the power electronics, and functioning as the pv system disco and the rapid shutdown initiation device, should be all that is required. Brian > On Feb 1, 2022, at 11:43 AM, Christopher Warfel > wrote: > >  > That was my

Re: [RE-wrenches] Rapid Shutdown for Off-grid systems

Ray: Thanks for that input. I was hoping I was wrong. I looked for that discussion in the archives but could not find it. William Miller Solar 17395 Oak Road, Atascadero, CA 93422 805-438-5600 www.millersolar.com CA Lic. 773985 *From:* RE-wrenches

Re: [RE-wrenches] Rapid Shutdown for Off-grid systems

That was my understanding too, but the language Jay has from 2017 (and I confirmed in 2020) reads different.  I was positive ground mounted arrays did not need to comply with RSS. The bogus argument made by the businesses influencing the CMP, and by a few mercenaries supposedly representing

Re: [RE-wrenches] Rapid Shutdown for Off-grid systems

Hi, If I put a disconnect switch within one foot of the ground mounted array, I am pretty sure this would comply with RSS requirements?  Chris On 2/1/2022 12:06 PM, William Miller wrote: Jay: Here is the text from 2017: /690.12 Rapid Shutdown of PV Systems on Buildings. PV/ /system

Re: [RE-wrenches] Rapid Shutdown for Off-grid systems

 Ground mounts do NOT require RSS.  We hashed this out years ago on the Wrenches list, when NEC 2017 came out. See Figure 690.1(B) Note (2): /" The PV system disconnect in these diagrams separates the PV system from all other systems"./ Thus, the PV disconnect is defined as the transition

Re: [RE-wrenches] Rapid Shutdown for Off-grid systems

Jay: Here is the text from 2017: *690.12 Rapid Shutdown of PV Systems on Buildings. PV* *system circuits installed on or in buildings shall include a rapid* *shutdown function to reduce shock hazard for emergency* *responders in accordance with 690.12(A) through (D).* *Exception:

Re: [RE-wrenches] Rapid Shutdown for Off-grid systems

2017 code has a specific exception/clarification for ground mount solar that it does not need RS. It’s in the first line after 690.12 Jay > On Feb 1, 2022, at 12:13 AM, William Miller wrote: > >  > Jerry: > > Yes it is required. Rapid Shutdown: NEC 690.12. All buildings except >

Re: [RE-wrenches] burnt wire

I would agree loose or not retightened connection. We use ferrels and Cobra X Flex # 6 awg wire, great to work with and those fine strands within the ferrels compress much better then Cu. > On Jan 31, 2022, at 9:00 PM, Maverick Brown > wrote: > > Looks like

Re: [RE-wrenches] Ble Planet 8kWh solved, and Namaka

Hi William, Think of Namaka as the collector of the true SOC and other BMS data on the batteries. It also acts as a data translator for BMS data to other communication protocols. For other inverter brands it can speak directly to the equipment via Canbus or RS485. I think it's valuable to be