Re: [RE-wrenches] Rapid shutdown questions

2014-08-31 Thread Drake
Hello Robin and boB. Ryan’s Midnite video of the Birdhouse and rapid shutdown disconnects is amazing. It does look like you are producing a means of implementing this new code rule. In many situations, the rapid shutdown requirement certainly makes sense. In a large system where high voltag

Re: [RE-wrenches] Rapid shutdown questions

2014-08-31 Thread jay peltz
HI Dan, If you are doing 24v battery or below, you should be able to ignore the battery rapid shutdown part. IE under 30v jay peltz power On Aug 30, 2014, at 2:04 PM, Dan Fink wrote: > Dave; I feel your pain as do many others. > I feel like I've been Rick-rolled on the whole 690.12 thing. As

Re: [RE-wrenches] Rapid shutdown questions

2014-08-30 Thread Dan Fink
Dave; I feel your pain as do many others. I feel like I've been Rick-rolled on the whole 690.12 thing. As a firefighter, I thought rapid shutdown was a great idea for roof mounted arrays. Shut down fast from a central location on the ground, get up on the roof, do what needs to be done, fast and no

Re: [RE-wrenches] Rapid shutdown questions

2014-08-29 Thread Exeltech
i, 8/29/14, Dave Click wrote: Subject: Re: [RE-wrenches] Rapid shutdown questions To: re-wrenches@lists.re-wrenches.org Date: Friday, August 29, 2014, 12:08 PM While I share Robin's optimism, I should also note the "NEC 2017 690.12 committee" referred to is not the code making pane

Re: [RE-wrenches] Rapid shutdown questions

2014-08-29 Thread Dave Click
While I share Robin's optimism, I should also note the "NEC 2017 690.12 committee" referred to is not the code making panel. While it does have (at least) one firefighter representative among a majority of PV industry personnel, there's no guarantee that the Code Making Panel approves this comm

Re: [RE-wrenches] Rapid shutdown questions

2014-08-28 Thread b...@midnitesolar.com
Ops from Robin... On 8/28/2014 11:00 PM, Robin Gudgel wrote: Bob, I was mistaken about NEC2017 covering all PV systems. IT will still just be for buildings. On 8/28/2014 4:53 PM, b...@midnitesolar.com wrote: >>>3) What about portable generators, and folks back feeding the grid or

Re: [RE-wrenches] Rapid shutdown questions

2014-08-28 Thread b...@midnitesolar.com
>>>3) What about portable generators, and folks back feeding the grid or house with little to no protection at all. Luckily, if the house is still connected to the grid when they try this, the little generator will not be able to power the neighborhood. Maybe not even the pole pig transforme

Re: [RE-wrenches] Rapid shutdown questions

2014-08-28 Thread Ray Walters
So this would make sense that this Rapid Shut down provision would cover all generator backup systems too, not just solar. Considering auto start backup generators have been around for many decades, I have a few questions: 1) Does NEC 2014 require Rapid shutdown for all generator systems, or is

Re: [RE-wrenches] Rapid shutdown questions

2014-08-28 Thread b...@midnitesolar.com
[Robin chiming in, below] Dan, The 2014 690.12 is worded poorly. That is why there is so much confusion. MidNite Solar is sitting on the NEC2017 690.12 committee. There are a lot of smart people in this group. The 2017 version says ALL PV SYSTEMS, not just on or in buildings. The 10 foot spac

Re: [RE-wrenches] Rapid shutdown questions

2014-08-27 Thread Dan Fink
Hi Mac, all; Since Colorado just adopted NEC2014 July 1, I have not heard any AHJ stories yet. But look at 690.12 (1): "Requirements for controlled conductors shall apply only to PV system conductors of more than 5 ft in length inside a building, OR more than 10 ft from a PV array." (my emphasis on

Re: [RE-wrenches] Rapid shutdown questions

2014-08-27 Thread Brian Mehalic
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Re: [RE-wrenches] Rapid shutdown questions

2014-08-27 Thread Will White
, August 27, 2014 10:02 AM To: RE-wrenches Subject: Re: [RE-wrenches] Rapid shutdown questions Hi Will, Yes I'm sure AHJ's will be all over the place for a while here in Colorado. To clarify, is this a manual disconnect in the attic? If so, that is really missing the whole idea of a rapi

Re: [RE-wrenches] Rapid shutdown questions

2014-08-27 Thread Mac Lewis
d other statement contained in this > message and any attachment are solely those of the author and do not > necessarily represent those of the company. > > > > > > > > > > *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On > Behalf Of *M

Re: [RE-wrenches] Rapid shutdown questions

2014-08-27 Thread Will White
those of the company. From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Mac Lewis Sent: Wednesday, August 27, 2014 8:32 AM To: RE-wrenches Subject: [RE-wrenches] Rapid shutdown questions Hello wrenches, I am still trying to wrap my head around how to comply with ra

[RE-wrenches] Rapid shutdown questions

2014-08-27 Thread Mac Lewis
Hello wrenches, I am still trying to wrap my head around how to comply with rapid shutdown in off-grid and hybrid situations. I've got a few questions that maybe you can help with. 1. What is a (currently listed) rapid shutdown system that will accommodate 8 strings? I know I can do this with