Re: [RE-wrenches] 600 v pv lead separation

I don't know, but maybe it's a provision for using lower voltage rated wire for the batteries? Brian On Apr 7, 2014, at 2:17 PM, William Miller will...@millersolar.com wrote: Colleagues: I am installing a set of Tristar 600 volt input charge controllers. There are separate compartments

Re: [RE-wrenches] Busbar 120% rule

on the inverter output circuit OCPD size, which is often larger than 125% of the inverter output circuit current. Cheers, Brian Mehalic NABCEP Certified Solar PV Installation Professional(tm) R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV Curriculum Developer and Instructor Solar

Re: [RE-wrenches] 208 3 phase Off Grid Inverter

Wait a sec, volume purchasing issues doesn't equal discontinued! Sounds more like they're selling all they can make to a big customer! Brian Mehalic NABCEP Certified Solar PV Installation Professional(tm) R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV Curriculum Developer

Re: [RE-wrenches] 1000V rated equipment

are also an option, and more likely to be listed rather than recognized. Brian Mehalic NABCEP Certified Solar PV Installation Professional(tm) R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV Curriculum Developer and Instructor Solar Energy International http

Re: [RE-wrenches] 690.13(A) Mistake?

service an email and it quickly got to the right people. Nothing like a thousands of people proof reading your work - and just like big, new ideas, such as rapid shutdown, accuracy and clarity is just as important to the process. Cheers, Brian Mehalic NABCEP Certified Solar PV Installation

Re: [RE-wrenches] conductors and the 120% rule

it is worth having a conversation with them to see if they'll allow you to design the system based on the new Code - after all, in a certain sense, the 2014 NEC is what they meant the 2011 NEC to say! Cheers, Brian Mehalic NABCEP Certified Solar PV Installation Professional(tm) R031508-59 IREC ISPQ

Re: [RE-wrenches] conductors and the 120% rule

If the subpanel is at the end if the feeder, and there are no taps in between the main and the sub then I don't see any reason that the conductors need to be any larger than 200 A as there is no where on the feeder conductors where grid and PV current will be additive. The changes in 705.12

Re: [RE-wrenches] NEC 2014 690.12 Rapid Shutdown

circuit conductors from the inverter in order to meet 690.12? Brian Mehalic NABCEP Certified Solar PV Installation Professional(tm) R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org On Tue

Re: [RE-wrenches] NEC 2014 690.12 Rapid Shutdown

It was suggested to me that since 690.12(5) requires the equipment to be listed and identified, and there is no standard for rapid shutdown equipment to be listed to then 90.3 (.4?...oh why isn't the NEC on my iPad...)says 'revert to the previous version of the NEC' and presto, no need to

Re: [RE-wrenches] Busbar rating with multiple main breakers

Best bet is to contact the manufacturer of the equipment and get documentation. Typos courtesy of my iPhone. On Dec 19, 2013, at 2:16 PM, SunHarvest e...@harvesthesun.com wrote: Hi guys - Concerning the 120% rule: I've encountered several circumstances recently where a 400A

Re: [RE-wrenches] Mike Holt Solar Video - LIVE in your town, limited time only

Here's a link to the video: http://youtu.be/YuDqXFvRv94 Brian On Dec 9, 2013, at 2:21 PM, Jason Szumlanski ja...@fafcosolar.com wrote: I had to quit watching at noon, so I was disappointed to have missed the theatrics. I just installed a system on my home to NEC 2008 as is followed

Re: [RE-wrenches] Mike Holt Solar Video - LIVE in your town, limited time only

for years and years. So...go Bill! Brian Mehalic NABCEP Certified Solar PV Installation Professional™ R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org On Mon, Dec 9, 2013 at 3:50 PM, Glenn

[RE-wrenches] SW repair

is it will fail...I've never changed out any internal parts on SWs, and a few posts on the internet made it sound like the fan is a pain in the butt. Any reputable repair shops in the Southeast or east coast? Thanks! Brian Mehalic NABCEP Certified Solar PV Installation Professional™ R031508-59 IREC ISPQ

[RE-wrenches] Trace SWs in Energy Management Mode

or insight? Thanks! Brian Mehalic NABCEP Certified Solar PV Installation Professional™ R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org ___ List

Re: [RE-wrenches] Trace SWs in Energy Management Mode

a good charge/being floated each night. Brian Mehalic NABCEP Certified Solar PV Installation Professional™ R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org On Fri, Oct 4, 2013 at 3:09 PM

Re: [RE-wrenches] Trace SWs in Energy Management Mode

Thanks, I was thinking about using LBX, but the customer is really not too excited about it. And based on the manual, Energy Management Mode seems like it fits the bill, but it doesn't seem to be going back into stand-alone/inverter mode when the timer is supossed to turn off. Brian Mehalic

Re: [RE-wrenches] Trace SWs in Energy Management Mode

? Why did one of the two go into bulk when the well pump came on, even though battery voltage was fine? Thanks, I appreciate all the input! It's the weekend, but please keep it coming! Brian Mehalic NABCEP Certified Solar PV Installation Professional™ R031508-59 IREC ISPQ Certified Affiliated

Re: [RE-wrenches] transformerless inverters and conductor colors

used must be documented and readily available or...permanently posted at the equipment. Cheers, Brian Mehalic NABCEP Certified Solar PV Installation Professional™ R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV Curriculum Developer and Instructor Solar Energy International http

Re: [RE-wrenches] Sundanzer questions

SEI has one at our lab yard for student use that has been working fine for a handful of years; and we donated one to the local brewery that has been chugging (pun intended!) along fine for about 2 years now. Brian Brian Mehalic NABCEP Certified Solar PV Installation Professional™ R031508-59

Re: [RE-wrenches] Grid Tie, battery back-up, feed in tarriff

https://www.progress-energy.com/assets/www/docs/business/service_requirements_manual.pdf Here's a link to the progress energy interconnection requirements for by all / sell all systems. Check out figures 64 and 65 and a couple others for some of their interconnection requirements. May be

Re: [RE-wrenches] 1000V PV Wire

I think there are a variety of ways to meet the listing. See this link: http://www.ul.com/asiaonthemark/as-en/2009-Issue30/page1.htm Cheers, Brian Typos courtesy of my iPhone. On Jun 3, 2013, at 12:45 PM, Brian Teitelbaum bteitelb...@aeesolar.com wrote: Esteemed Wrenches, We are having

Re: [RE-wrenches] Enphase Wire Management

Heyco Sunbundler! Typos courtesy of my iPhone. On Apr 11, 2013, at 8:52 PM, Aaron Mandelkorn reoso...@gmail.com wrote: Just wondering what people like to use for supporting the trunk cable for the enphase 215 inverters. WIth zipties going brittle after a couple of years aluminum or steel

Re: [RE-wrenches] Hawaii Frequency Settings

We had the same request in NC by Duke Energy. The inverter mfg. says they can do it but it'd be outside of the values on the label that the inverter is listed to. I don't think Duke cares, but the AHJ may. Brian Typos courtesy of my iPhone. On Feb 4, 2013, at 6:44 PM, Mark Frye

Re: [RE-wrenches] DC, or not DC, Dat is Da question (Two Load Questions)

I for one like a DC light in my inverter room. Just sayin'... Brian Mehalic NABCEP Certified Solar PV Installer™ R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org On Tue, Dec 11, 2012

Re: [RE-wrenches] EGC vs GEC, separately derived system

. Brian Mehalic NABCEP Certified Solar PV Installer™ R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org On Wed, Nov 28, 2012 at 10:56 PM, mac Lewis maclew...@gmail.com wrote: Hello

[RE-wrenches] Delta lightning arrestors

Hey wrenches, I have a couple of Delta LA questions. On the DC side there is an arrestor connected directly to the busbars in each combiner box. Each combiner is 24 strings and runs through a 300 A OCPD in the inverter sub combiner where it is paralleled with 7 other PV output circuits. On

Re: [RE-wrenches] Two NEC questions

components) And hit search. Only SMA and Eaton presently. I imagine that as more products become available more press releases will follow as well. You can also download a copy of the UL Whitebook to cross check other standards with the NEC. Brian Mehalic NABCEP Certified Solar PV Installer™ R031508

Re: [RE-wrenches] Max Insolation

I've seen 1300 sustained at 6000 feet and 1800 edge of cloud too. Brian Typos courtesy of my iPhone. On Aug 29, 2012, at 1:56 PM, Nathan Jones solardud...@yahoo.com wrote: Ray, I lived at altitude for many years but before being in this business. Never had a meter up there of course

Re: [RE-wrenches] Ballasted Roof Racking Recommendations?

I've used the DPW POWER-FAB BRM several times; it can tilt from 25 to 40º. Brian Mehalic NABCEP Certified Solar PV Installer™ R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org On Tue

Re: [RE-wrenches] Ilsco SGB bonding lug

I believe the UL467 listing means that it is rated for direct burial/outdoor use. Brian Mehalic NABCEP Certified Solar PV Installer™ R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org

Re: [RE-wrenches] Ilsco SGB bonding lug

for that On Aug 27, 2012, at 12:53 PM, Brian Mehalic br...@solarenergy.org wrote: I believe the UL467 listing means that it is rated for direct burial/outdoor use. Brian Mehalic NABCEP Certified Solar PV Installer™ R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV

Re: [RE-wrenches] Grid tied PV to subpanel on detached garage?

-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org -- Brian

Re: [RE-wrenches] WOW Something Gone Very Wrong

/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org -- Brian Mehalic NABCEP

Re: [RE-wrenches] GT inverter

-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org -- Brian Mehalic NABCEP Certified Solar PV Installer™ R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV

Re: [RE-wrenches] Invert first?

Sounds like a good situation for a sunny island system. Sent from my iPhone. On Oct 2, 2011, at 12:15 PM, Eric Thomas solarepiph...@gmail.com wrote: Wrenches, We are designing a super high end grid-tied w/ battery backup system for a customer. Array will be ~15kW; pole or stand alone

[RE-wrenches] 310.15(A)(2) Exception

feet above grade on either side? Can the exception be applied? How about 200 feet in the trench and 7 feet above grade on either end? Thanks, Brian -- Brian Mehalic NABCEP Certified Solar PV Installer™ R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV

Re: [RE-wrenches] Piping Reynolds Solar Hot Water Collectors

I believe the absorber plate and piping is aluminum, so a galvanic isolation fitting - compression if you can find it - would allow you to transition to copper pipe. Sent from my iPhone. On Jun 23, 2011, at 7:30 AM, Christopher Warfel cwar...@entech-engineering.com wrote: I have come into

Re: [RE-wrenches] Supporting conductors in Free Air

Hey Andrew, article 338 (USE) references 334.30 regarding securing and supporting. Not sure if there is another reference. Brian Sent from my iPhone. On Jun 5, 2011, at 6:47 PM, Andrew Truitt atru...@gmail.com wrote: Gents - Where in the code does it specify that conductors in free air

Re: [RE-wrenches] 24 volt Battery Bank comparison

rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org -- Brian Mehalic NABCEP Certified Solar PV Installer™ R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV Curriculum Developer and Instructor

Re: [RE-wrenches] solar thermal/electric

etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org -- Brian Mehalic NABCEP Certified Solar PV Installer™ R031508-59 PV Curriculum Developer and Instructor Solar Energy International Carbondale, CO 81623 http

Re: [RE-wrenches] Calculation of Maximum Circuit Current

participant bios: www.members.re-wrenches.org -- Brian Mehalic NABCEP Certified Solar PV Installer™ PV Online Coordinator Solar Energy International Carbondale, CO 81623 http://www.solarenergy.org ___ List sponsored by Home Power

Re: [RE-wrenches] GEC for Enphase inverters

Check out participant bios: www.members.re-wrenches.org -- Brian Mehalic NABCEP Certified Solar PV Installer™ PV Online Coordinator Solar Energy International Carbondale, CO 81623 http://www.solarenergy.org ___ List sponsored

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