Re: [RE-wrenches] Rapid shutdown for pole mounts

2014-06-27 Thread Dave Click
Thanks to Nick for catching a misstatement in my email, corrected below in *bold*. I was trying to make a general statement out of his specific situation. On 2014/6/26, 10:20, Dave Click wrote: NEC says 10' from the array, defined as "A mechanically integrated assembly of modules or panels wit

Re: [RE-wrenches] Rapid shutdown for pole mounts

2014-06-26 Thread Dave Click
NEC says 10' from the array, defined as "A mechanically integrated assembly of modules or panels with a support structure and foundation, tracker, and other components, as required, to form a direct-current power-producing unit. 70HB14_CH00_FM_pi_xii.pdf " I take this to mean that the "array" d

Re: [RE-wrenches] Rapid shutdown for pole mounts

2014-06-25 Thread Jesse Dahl
Re-reading this rapid shutdown convo. Does 10' from the array mean from the modules or the "mount"? What if the array is on a pole, the pole is 15' tall and the inverter is mounted at the base of the pole? Since the array (modules) is 15' from the inverter is rapid shutdown required? Again, sin

Re: [RE-wrenches] Rapid shutdown for pole mounts

2014-05-02 Thread Bill Brooks
Martin, I agree that this would meet the requirement. Bill. From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Martin Herzfeld Sent: Friday, May 02, 2014 10:49 AM To: RE-wrenches Subject: Re: [RE-wrenches] Rapid shutdown for

Re: [RE-wrenches] Rapid shutdown for pole mounts

2014-05-02 Thread Martin Herzfeld
In other words, for ground-mounts, in accordance with 2014 NEC 690.12(1), would it be okay to run the DC conductors not inside, but on the side of the building "5" feet directly to the inverter? Martin Herzfeld California Solar Contractors License #833782 Trenching Contractor, Pole Installation a

Re: [RE-wrenches] Rapid shutdown for pole mounts

2014-04-19 Thread Dan Fink
Thanks Brian -- I think that covers both DC and AC sides then. But the Mike Holt textbook I received taking Ryan Mayfield's (excellent) class at NABCEP Denver last month specifically says "dc circuits" all throughout the 690.12 analysis.my copy of NEC2014 does not specify DC at all. Did I mis

Re: [RE-wrenches] Rapid shutdown for pole mounts

2014-04-19 Thread Aaron Mandelkorn
Dan. Great thoughts on the subject. I agree with the power shed idea but this isn't feasible most of the time for me. I have been thinking about AC coupling for off grid systems and the idea doesn't excite me. Thanks for your input. Aaron Aaron Mandelkorn Owner/Solar Specialist Renewable Energ

Re: [RE-wrenches] Rapid shutdown for pole mounts

2014-04-19 Thread Brian Mehalic
The definition for "PV system" moved to Article 100 in 2014. I think it's pretty clear that the PV system includes the inverter, if present, and the inverter output circuits. Brian > On Apr 19, 2014, at 1:22 PM, Dan Fink wrote: > > Hi Aaron, boB, Wrenches; > > I think Aaron brings up a good

Re: [RE-wrenches] Rapid shutdown for pole mounts

2014-04-19 Thread Dan Fink
Hi Aaron, boB, Wrenches; I think Aaron brings up a good point, and it's certainly confusing to me. The boldface type heading of 690.12 is "Rapid Shutdown of PV Systems on Buildings" The body of the 690.12 text begins with "PV system *circuits* installed on or in buildings shall." 690.2 defi

Re: [RE-wrenches] Rapid shutdown for pole mounts

2014-04-18 Thread Bill Brooks
Aaron, An exterior utility service panel with an underground service lateral is not considered in or on the building. Keep the dc conductors off of the building and you will be fine with a ground-mounted PV system. Don't bring them inside the building, and don't run them along the exterior of th

Re: [RE-wrenches] Rapid shutdown for pole mounts

2014-04-18 Thread b...@midnitesolar.com
Bill Brooks should probably respond to this also, but reading the NEC, it looks like if the wires do not go inside the building to run more than 5 feet (as the crow flies), the the rapid disconnect does not apply.OR, less than 10 feet from the array IF the PV is mounted on that building.