Re: [RE-wrenches] PV Production Meter on a XW System
Is the E-Guage a revenue rated meter, acceptable for selling S-RECs? At 10:03 AM 8/25/2012, you wrote: But you can use one e-Guage to look at 6 different current flows. The e-guage has 12 CT inputs, and shows all the data online. On Sat, Aug 25, 2012 at 9:17 AM, Drake mailto:drake.chamber...@redwoodalliance.orgdrake.chamber...@redwoodalliance.org wrote: You can also use a couple of rebuilt meters from Hialeah Meter company that read both ways. On the AC IN, the power that is sold to and purchased from the grid will add / subtract to let you know the amount you sold or bought. The meter to the protected loads panel will register one way to let you know how much power was consumed there. If you sold more power than you purchased, you can add that to the protected loads panel production. If you purchased more, subtract that to find your PV production. At 02:23 PM 8/24/2012, you wrote: Great explanation gary. I was thinking that between the AC1 and breaker in the main panel was the right place but wasn't sure. Thanks for the help. Aaron Mandelkorn NABCEP Certified PV Installer Owner / Operator Renewable Energy Outfitters Box 65 Salida, CO. 81201 tel:%28970%29596-3744(970)596-3744 mailto:reoso...@gmail.comreoso...@gmail.com www.reosolar.com On Aug 24, 2012, at 11:05 AM, Gary Willett wrote: Aaron: Manually-read legacy utility meters, in many cases, are set up to accumulate current flow in either direction as kWh consumed. This was done because dishonest people would turn the meter upside down for part of the month, and then put it back normal before the meter-reader showed up. My electric service has a bi-directional smart utility meter that presents a cyclic display of kWh delivered (code 20) and received (code 57). For my GTBB system, I use a GE KV2c bi-directional meter between the XW AC1 conductors and the grid interactive back-fed PV breaker. This provides a separate register for the kWh bought and the kWh sold from the XW's perspective. The XW inverter AC output feeds a protected loads panel, which in my case contains everything except the electric oven and the electric dryer. My 3-ton AC unit runs off the XW inverter under grid-up, but is switched off via a contactor when in grid-down. I have an autostart 6kW Generac EcoGen connected to the XW AC2 for back-up in event of an extended grid outage. The KV2c bought register accumulates the kWh consumed when the XW is in AC Pass-Thru mode or grid supplement mode (PV kW not adequate to deliver load demand). The KV2c sold register accumulates the kWh delivered by the XW to the main service panel. Some of these kWs power my 240V loads if they are active. Regards, Gary Willett, PE On 8/24/2012 10:44 AM, Kent Osterberg wrote: Aaron, Is the objective to measure all of the energy produced or only that which is delivered to the grid? To measure the energy sold to the grid, the meter goes between the XW and the grid, but it must be an electronically detented meter that only records energy flow in one direction. Kent Osterberg Blue Mountain Solar, Inc. http://www.bluemountainsolar.com/www.bluemountainsolar.com t: tel:541-568-4882541-568-4882 On 8/24/2012 7:29 AM, Aaron Mandelkorn wrote: Wrenches, I would like to here some thoughts on monitoring the production a XW in grid tie with battery backup mode. I normally use the Sunny Island for my grid tie with battery backup systems and am considering going with the XW on my next one. Just wondering where in the system one would wire the AC PV Production meter to best represent the amount of power sold to the grid. We have performance based incentives around here that require metering of the power going back to the grid. With the SI systems this is easily accomplished by putting the required meter after the sunny boy before going to the critical loads panel. Any ideas about how to accomplish this with the DC coupled XW system? Your thoughts would be greatly appreciated. Aaron Mandelkorn NABCEP Certified PV Installer Owner / Operator Renewable Energy Outfitters Box 65 Salida, CO. 81201 tel:%28970%29596-3744(970)596-3744 mailto:reoso...@gmail.comreoso...@gmail.com www.reosolar.com ___ List sponsored by Home Power magazine List Address: mailto:RE-wrenches@lists.re-wrenches.org RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 ___ List sponsored by Home Power magazine List Address: mailto:RE-wrenches@lists.re-wrenches.org RE-wrenches@lists.re-wrenches.org Options settings:
Re: [RE-wrenches] DC relay
Thank you for the help! On 8/26/2012 1:14 PM, Maverick Brown [Maverick Solar] wrote: If you need a single pole single throw (SPST), search www.mouser.com http://www.mouser.com for D1D40 or D06D60. If not SPST, then you use there relay search tool to find what you need. Grainger.com and Digikey.com also have similar search tools and parts. *From:*re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *mac Lewis *Sent:* Sunday, August 26, 2012 10:54 AM *To:* RE-wrenches *Subject:* [RE-wrenches] DC relay Hi Wrenches, Does anyone have a recommendation for robust relay that has a 12VDC coil rated 200mA and contact rating of 20A at 48VDC? Thanks in advance. -- Mac Lewis** Yo solo sé que no sé nada. *-Sócrates*** ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 -- Christopher Warfel, P.E. ENTECH Engineering, Inc. Energy Utilization Experts (401)466-8978 The information contained within this communication shall be considered confidential and shall not be retransmitted without knowledge of the sender. Please contact us if this email reached you in error. Thank you. ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] DC relay
Thank you for the help! On 8/26/2012 12:54 PM, Jay Peltz wrote: Yep. Solid state relay. Grainger would have them. Get the heat sink also. Jay Peltz power Sent from my iPhone On Aug 26, 2012, at 8:53 AM, mac Lewis maclew...@gmail.com mailto:maclew...@gmail.com wrote: Hi Wrenches, Does anyone have a recommendation for robust relay that has a 12VDC coil rated 200mA and contact rating of 20A at 48VDC? Thanks in advance. -- Mac Lewis * Yo solo sé que no sé nada. -Sócrates * ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org mailto:RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 http://www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org http://www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 -- Christopher Warfel, P.E. ENTECH Engineering, Inc. Energy Utilization Experts (401)466-8978 The information contained within this communication shall be considered confidential and shall not be retransmitted without knowledge of the sender. Please contact us if this email reached you in error. Thank you. ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] DC relay
Thank Jim,Chris On 8/26/2012 5:01 PM, Solarguy wrote: Allied Electronics has a big selection of DIN mount and surface mount relays. Also a number of connectors and other solar devices. http://www.alliedelec.com/catalog/pf.aspx?fn=1145.pdf Jim Duncan Hi Wrenches, Does anyone have a recommendation for robust relay that has a 12VDC coil rated 200mA and contact rating of 20A at 48VDC? Thanks in advance. -- Mac Lewis** Yo solo sé que no sé nada. *-Sócrates*** ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org mailto:RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 http://www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org http://www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 -- Christopher Warfel, P.E. ENTECH Engineering, Inc. Energy Utilization Experts (401)466-8978 The information contained within this communication shall be considered confidential and shall not be retransmitted without knowledge of the sender. Please contact us if this email reached you in error. Thank you. ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] PV Production Meter on a XW System
I don't believe so. On Mon, Aug 27, 2012 at 9:38 AM, Drake drake.chamber...@redwoodalliance.org wrote: Is the E-Guage a revenue rated meter, acceptable for selling S-RECs? At 10:03 AM 8/25/2012, you wrote: But you can use one e-Guage to look at 6 different current flows. The e-guage has 12 CT inputs, and shows all the data online. On Sat, Aug 25, 2012 at 9:17 AM, Drake drake.chamber...@redwoodalliance.org wrote: You can also use a couple of rebuilt meters from Hialeah Meter company that read both ways. On the AC IN, the power that is sold to and purchased from the grid will add / subtract to let you know the amount you sold or bought. The meter to the protected loads panel will register one way to let you know how much power was consumed there. If you sold more power than you purchased, you can add that to the protected loads panel production. If you purchased more, subtract that to find your PV production. At 02:23 PM 8/24/2012, you wrote: Great explanation gary. I was thinking that between the AC1 and breaker in the main panel was the right place but wasn't sure. Thanks for the help. Aaron Mandelkorn NABCEP Certified PV Installer Owner / Operator Renewable Energy Outfitters Box 65 Salida, CO. 81201 (970)596-3744 reoso...@gmail.com www.reosolar.com On Aug 24, 2012, at 11:05 AM, Gary Willett wrote: Aaron: Manually-read legacy utility meters, in many cases, are set up to accumulate current flow in either direction as kWh consumed. This was done because dishonest people would turn the meter upside down for part of the month, and then put it back normal before the meter-reader showed up. My electric service has a bi-directional smart utility meter that presents a cyclic display of kWh delivered (code 20) and received (code 57). For my GTBB system, I use a GE KV2c bi-directional meter between the XW AC1 conductors and the grid interactive back-fed PV breaker. This provides a separate register for the kWh bought and the kWh sold from the XW's perspective. The XW inverter AC output feeds a protected loads panel, which in my case contains everything except the electric oven and the electric dryer. My 3-ton AC unit runs off the XW inverter under grid-up, but is switched off via a contactor when in grid-down. I have an autostart 6kW Generac EcoGen connected to the XW AC2 for back-up in event of an extended grid outage. The KV2c bought register accumulates the kWh consumed when the XW is in AC Pass-Thru mode or grid supplement mode (PV kW not adequate to deliver load demand). The KV2c sold register accumulates the kWh delivered by the XW to the main service panel. Some of these kWs power my 240V loads if they are active. Regards, Gary Willett, PE On 8/24/2012 10:44 AM, Kent Osterberg wrote: Aaron, Is the objective to measure all of the energy produced or only that which is delivered to the grid? To measure the energy sold to the grid, the meter goes between the XW and the grid, but it must be an electronically detented meter that only records energy flow in one direction. Kent Osterberg Blue Mountain Solar, Inc. www.bluemountainsolar.com t:541-568-4882 On 8/24/2012 7:29 AM, Aaron Mandelkorn wrote: Wrenches, I would like to here some thoughts on monitoring the production a XW in grid tie with battery backup mode. I normally use the Sunny Island for my grid tie with battery backup systems and am considering going with the XW on my next one. Just wondering where in the system one would wire the AC PV Production meter to best represent the amount of power sold to the grid. We have performance based incentives around here that require metering of the power going back to the grid. With the SI systems this is easily accomplished by putting the required meter after the sunny boy before going to the critical loads panel. Any ideas about how to accomplish this with the DC coupled XW system? Your thoughts would be greatly appreciated. Aaron Mandelkorn NABCEP Certified PV Installer Owner / Operator Renewable Energy Outfitters Box 65 Salida, CO. 81201 (970)596-3744 reoso...@gmail.com www.reosolar.com ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.orgRE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: http://www.re-wrenches.org/etiquette.htm www.re-wrenches.org/etiquette.htm Check out participant bios: http://www.members.re-wrenches.org/ www.members.re-wrenches.org ___ List sponsored by Home Power magazine List
Re: [RE-wrenches] Motech Inverter Warranty
I finally found an email contact at Motech in Taiwan. It looks like I am going to get warranty satisfaction. Let me know if you need it off-list. The experience has been less than stellar to say the least. Fortunately, we only have a few of their inverters out there. Jason Szumlanski Fafco Solar On Wed, Aug 22, 2012 at 2:43 PM, Jason Szumlanski ja...@fafcosolar.comwrote: Does anyone know who to contact to get warranty support on Motech inverters? I guess another question would be IF they are fulfilling warranty obligations these days... Jason Szumlanski Fafco Solar ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
[RE-wrenches] PV Powered Preventative Maintenance
Does anyone know what is included in the optional Preventative Maintenance program from the manufacturer? I can't find any documentation on it. Is it just a one-time maintenance, or an ongoing program? Based on the cost I was quoted, it looks like a one-shot deal. Seems strange... Jason Szumlanski Fafco Solar ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Motech Inverter Warranty
Did Silicon Energy get its inverter from Motech? I think they did. I have one installed and I would like that info if something comes up. Jesse Sent from my iPhone On Aug 27, 2012, at 1:48 PM, Jason Szumlanski ja...@fafcosolar.com wrote: I finally found an email contact at Motech in Taiwan. It looks like I am going to get warranty satisfaction. Let me know if you need it off-list. The experience has been less than stellar to say the least. Fortunately, we only have a few of their inverters out there. Jason Szumlanski Fafco Solar On Wed, Aug 22, 2012 at 2:43 PM, Jason Szumlanski ja...@fafcosolar.com wrote: Does anyone know who to contact to get warranty support on Motech inverters? I guess another question would be IF they are fulfilling warranty obligations these days... Jason Szumlanski Fafco Solar ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
[RE-wrenches] Ilsco SGB bonding lug
Wrenches, What is your take on this product from Ilsco? It appears to be a good option for bonding module frames and has been suggested by a distributor for bonding rails as well…. But industry best practice has steered us away from using aluminum lugs in favour of tin-plated copper lugs. SGB SOLAR GRND BND http://ilsco.com//ProductsDetail.aspx?kfjkff=0kMVXKLlROO4l5EwarhvPw%3d%3df jjfhjhj=nFBt62Axh6IhPmrswva0nAkQKTu46vPAzpM1xJdnS3Y%3d SGB-4 http://ilsco.com//TechnicalDrawing//G1040.pdf The info on the linked page does not state 'rated for outdoor use' but it does mention Tested to ASTM B117-09 for operating in a salt spray (fog) environment Would this not imply 'outdoor use'? Benn DayStar Renewable Energy Inc. www.daystarsolar.ca * Ph: 780-906-7807 Construction Electrician Solar Photovoltaic Systems Certified Certificate # 0007S HAVE A SUNNY DAY ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
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 On Mon, Aug 27, 2012 at 3:49 PM, benn kilburn b...@daystarsolar.ca wrote: Wrenches, What is your take on this product from Ilsco? It appears to be a good option for bonding module frames and has been suggested by a distributor for bonding rails as well…. But industry best practice has steered us away from using aluminum lugs in favour of tin-plated copper lugs. SGB SOLAR GRND BNDhttp://ilsco.com//ProductsDetail.aspx?kfjkff=0kMVXKLlROO4l5EwarhvPw%3d%3dfjjfhjhj=nFBt62Axh6IhPmrswva0nAkQKTu46vPAzpM1xJdnS3Y%3d SGB-4 http://ilsco.com//TechnicalDrawing//G1040.pdf The info on the linked page does not state 'rated for outdoor use' but it does mention Tested to ASTM B117-09 for operating in a salt spray (fog) environment Would this not imply 'outdoor use'? Benn DayStar Renewable Energy Inc. www.daystarsolar.ca * Ph: 780-906-7807 Construction Electrician Solar Photovoltaic Systems Certified Certificate # 0007S HAVE A SUNNY DAY ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Ilsco SGB bonding lug
Grounding rods that are UL467 listed don't necessarily list outdoor rated as a specification. That is implied I believe. You probably wouldn't need these lugs for those indoor PV modules. :) I like the looks of that lug. However, I've been using WEEBs too long to go back now. Jason Szumlanski Fafco Solar On Mon, Aug 27, 2012 at 3:49 PM, benn kilburn b...@daystarsolar.ca wrote: Wrenches, What is your take on this product from Ilsco? It appears to be a good option for bonding module frames and has been suggested by a distributor for bonding rails as well…. But industry best practice has steered us away from using aluminum lugs in favour of tin-plated copper lugs. SGB SOLAR GRND BNDhttp://ilsco.com//ProductsDetail.aspx?kfjkff=0kMVXKLlROO4l5EwarhvPw%3d%3dfjjfhjhj=nFBt62Axh6IhPmrswva0nAkQKTu46vPAzpM1xJdnS3Y%3d SGB-4 http://ilsco.com//TechnicalDrawing//G1040.pdf The info on the linked page does not state 'rated for outdoor use' but it does mention Tested to ASTM B117-09 for operating in a salt spray (fog) environment Would this not imply 'outdoor use'? Benn DayStar Renewable Energy Inc. www.daystarsolar.ca * Ph: 780-906-7807 Construction Electrician Solar Photovoltaic Systems Certified Certificate # 0007S HAVE A SUNNY DAY ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Ilsco SGB bonding lug
Hi Brian Isn't another way to go: Use the AL lugs and AL grounding wire? Jay Peltz power Sent from my iPhone 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 Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org .org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Ilsco SGB bonding lug
Jay Seems to be the preferred method in salt spray environments like the South Pacific Islands! Copper and Aluminum don't play well together under those conditions Bill Hoffer On Mon, Aug 27, 2012 at 1:04 PM, Jay Peltz j...@asis.com wrote: Hi Brian Isn't another way to go: Use the AL lugs and AL grounding wire? Jay Peltz power Sent from my iPhone 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 Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org .org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 -- Bill Hoffer PE NABCEP Certified Solar PV Installer™ Sunergy Engineering Services PLLC 2504 Columbia Ave NW East Wenatchee WA 98802-3941 suneng...@gmail.com Cell:(509)679-6165 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Ilsco SGB bonding lug
Some of the aluminum lugs are indoor-rated. They have a set screw will rust in an outdoor environment. That's one of the classic John Wiles slides. I'd just watch out for that On Aug 27, 2012, at 3:04 PM, Jay Peltz wrote: Hi Brian Isn't another way to go: Use the AL lugs and AL grounding wire? Jay Peltz power Sent from my iPhone 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 Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org .org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Ilsco SGB bonding lug
Yeah, but this one is marketed as a solar bonding lug. I think it's safe to say that it appropriately rated for outdoor use. It's always good to double-check, of course. Jason Szumlanski Fafco Solar On Mon, Aug 27, 2012 at 4:11 PM, David Brearley david.brear...@solarprofessional.com wrote: Some of the aluminum lugs are indoor-rated. They have a set screw will rust in an outdoor environment. That's one of the classic John Wiles slides. I'd just watch out 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 Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org .org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Ilsco SGB bonding lug
Yes, sorry. I wasn't speaking of this lug...I like the redesign. Looks quicker and easier and robust. On Aug 27, 2012, at 3:17 PM, Jason Szumlanski wrote: Yeah, but this one is marketed as a solar bonding lug. I think it's safe to say that it appropriately rated for outdoor use. It's always good to double-check, of course. Jason Szumlanski Fafco Solar On Mon, Aug 27, 2012 at 4:11 PM, David Brearley david.brear...@solarprofessional.com wrote: Some of the aluminum lugs are indoor-rated. They have a set screw will rust in an outdoor environment. That's one of the classic John Wiles slides. I'd just watch out 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 Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org .org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Ilsco SGB bonding lug
Here's the Ilsco listing from UL, where it's classed as Grounding and Bonding Equipment: http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=KDER.E34440ccnshorttitle=Grounding+and+Bonding+Equipmentobjid=1074099002cfgid=1073741824version=versionlessparent_id=1073988940sequence=1 The GuideInfo for Grounding Bonding Equipment lists: _Grounding and Bonding for Photovoltaic (PV) Systems _--- Grounding and bonding equipment intended for use in PV systems are additionally investigated in combination with the PV module/panel (see QIGU) to the applicable requirements for such products. Installation instructions provided with the PV system (see QIGU) identify the specific grounding and bonding device that has been investigated and intended for use with that system. http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=KDER.GuideInfoccnshorttitle=Grounding+and+Bonding+Equipmentobjid=1074098839cfgid=1073741824version=versionlessparent_id=1073988940sequence=1 Regards, Gary Willett, PE On 8/27/2012 3:20 PM, David Brearley wrote: Yes, sorry. I wasn't speaking of this lug...I like the redesign. Looks quicker and easier and robust. On Aug 27, 2012, at 3:17 PM, Jason Szumlanski wrote: Yeah, but this one is marketed as a solar bonding lug. I think it's safe to say that it appropriately rated for outdoor use. It's always good to double-check, of course. Jason Szumlanski Fafco Solar On Mon, Aug 27, 2012 at 4:11 PM, David Brearley david.brear...@solarprofessional.com mailto:david.brear...@solarprofessional.com wrote: Some of the aluminum lugs are indoor-rated. They have a set screw will rust in an outdoor environment. That's one of the classic John Wiles slides. I'd just watch out for that On Aug 27, 2012, at 12:53 PM, Brian Mehalic br...@solarenergy.org mailto: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^(TM) R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org http://www.solarenergy.org/ .org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org mailto:RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Ilsco SGB bonding lug
Benn: Good looking lug, looks very useful. It won't do any good on the Solar World Plus series unless they have the version 2.5 frame. The standard frame has no flange! William Miller At 12:49 PM 8/27/2012, you wrote: Wrenches, What is your take on this product from Ilsco? It appears to be a good option for bonding module frames and has been suggested by a distributor for bonding rails as well . But industry best practice has steered us away from using aluminum lugs in favour of tin-plated copper lugs. http://ilsco.com//ProductsDetail.aspx?kfjkff=0kMVXKLlROO4l5EwarhvPw%3d%3dfjjfhjhj=nFBt62Axh6IhPmrswva0nAkQKTu46vPAzpM1xJdnS3Y%3dSGB SOLAR GRND BND http://ilsco.com//TechnicalDrawing//G1040.pdfSGB-4 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
[RE-wrenches] Fronius replacement
Friends: We have a client that wants to divest of 8 Fronius LG-4500 LV inverters. They are experiencing a high number of failures. The Fronius have an unusually low DC input window: 150 to 450 VDC. This means the stringing will result in a lower voltages than typically found and makes it difficult to substitute inverters. Does anyone know of any reliable inverter that will work with string voltages in the low 200s? Thanks in advance. William Miller Miller Solar Voice :805-438-5600 email: will...@millersolar.com http://millersolar.com License No. C-10-773985 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Fronius replacement
Off the top of my head...Power-One? You can download an Excel file with comprehensive string inverter specs here: http://solarprofessional.com/webexclusive/ On Aug 27, 2012, at 4:06 PM, William Miller wrote: Friends: We have a client that wants to divest of 8 Fronius LG-4500 LV inverters. They are experiencing a high number of failures. The Fronius have an unusually low DC input window: 150 to 450 VDC. This means the stringing will result in a lower voltages than typically found and makes it difficult to substitute inverters. Does anyone know of any reliable inverter that will work with string voltages in the low 200s? Thanks in advance. William Miller Miller Solar Voice :805-438-5600 email: will...@millersolar.com http://millersolar.com License No. C-10-773985 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Fronius replacement
I think some Solectria inverters have a low number (115vdc). The Solectrias I have worked with had a max DC voltage of 400vdc though. Jesse Sent from my iPhone On Aug 27, 2012, at 4:13 PM, David Brearley david.brear...@solarprofessional.com wrote: Off the top of my head...Power-One? You can download an Excel file with comprehensive string inverter specs here: http://solarprofessional.com/webexclusive/ On Aug 27, 2012, at 4:06 PM, William Miller wrote: Friends: We have a client that wants to divest of 8 Fronius LG-4500 LV inverters. They are experiencing a high number of failures. The Fronius have an unusually low DC input window: 150 to 450 VDC. This means the stringing will result in a lower voltages than typically found and makes it difficult to substitute inverters. Does anyone know of any reliable inverter that will work with string voltages in the low 200s? Thanks in advance. William Miller Miller Solar Voice :805-438-5600 email: will...@millersolar.com http://millersolar.com License No. C-10-773985 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
[RE-wrenches] Neutral to ground bond in a wye wound secondary
Friends: We came across an interesting situation in a local winery recently: The service is 480 volts and the inverters are operating at 208 volts. To make the two systems connect, the original installer integrated a 480 Delta to 208 Wye transformer, pretty standard procedure. We found a stray voltage of 18 volts between the neutral and ground as measured in the AC combiner panel. I noticed that there was no bond between the neutral and the ground in this panel. I do not believe this is correct. One reason is the stray voltage seems wrong. Another, more important consideration is that I do not believe there is path for fault currents to return to the transformer. In the case of a phase short to chassis, there would be no fault current to open the OCPD. Is my analysis correct here? Thanks in advance, William Miller Miller Solar Voice :805-438-5600 email: will...@millersolar.com http://millersolar.com License No. C-10-773985 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Neutral to ground bond in a wye wound secondary
William, The transformer creates a Separately Derived System. You need to bond the the neutral, and the equipment ground there or at the first Disconnecting Means, which would be the combiner panel. The chosen bonding point must also be connected to a grounding electrode. Per2011 NEC 250.30. Dick Ratico --- You wrote: Friends: We came across an interesting situation in a local winery recently: The service is 480 volts and the inverters are operating at 208 volts. To make the two systems connect, the original installer integrated a 480 Delta to 208 Wye transformer, pretty standard procedure. We found a stray voltage of 18 volts between the neutral and ground as measured in the AC combiner panel. I noticed that there was no bond between the neutral and the ground in this panel. I do not believe this is correct. One reason is the stray voltage seems wrong. Another, more important consideration is that I do not believe there is path for fault currents to return to the transformer. In the case of a phase short to chassis, there would be no fault current to open the OCPD. Is my analysis correct here? Thanks in advance, William Miller --- end of quote --- ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Disconnets
Jesse, You may want to check out the new(ish) line from GE and Eaton. Both have 600VDC listings, Eaton's newer line has 3 and 6 pole versions available. I have the Eaton disconnects specified for an upcoming job but I haven't used either as of yet. http://www.geindustrial.com/cwc/Dispatcher?REQUEST=PRODUCTS http://www.geindustrial.com/cwc/Dispatcher?REQUEST=PRODUCTSpnlid=5famid=3 9catid=62id=Solar-SD pnlid=5famid=39catid=62id=Solar-SD http://www.eaton.com/Eaton/ProductsServices/Electrical/ProductsandServices/E lectricalDistribution/SwitchesandDisconnects/SolarDisconnects/index.htm Ryan From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jesse Dahl Sent: Friday, August 24, 2012 6:43 PM To: RE-wrenches Subject: [RE-wrenches] Disconnets Hello, I've been having a long conversation with a local guy about disconnects that are usable in DC PV circuits. From what I have seen, GE, Eaton... they are usable up to the 250VDC it has listed on the labels, or more if poles are wired in series. The squared D 600Vac/dc is self tested to 600VDC/pole. The disconnects in question are not the solar disconnects on the market now. What are people using for the GDI systems? I seem to think that if if says 250VDC on the label, that is its rating unless you wire pole in series and the manufacturer has literature saying that that is acceptable. Thoughts on the square D self listing? Jesse ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Ilsco SGB bonding lug
Thanks for the feedback Wrenches, lots of interesting comments, However I'm still wondering.. How does one confirm that it is specifically approved for outdoor use? Other than assuming it is implied (because it is 'marketed' as a solar lug). As far as I can tell UL 467 does not imply outdoor rated as the aluminum lug GBL-4 is also UL467 listed. See hereGBL LAY-IN AL/CU http://ilsco.com//ProductsDetail.aspx?kfjkff=cjiDRFP14PUgtVid3pn1cQ%3d%3df jjfhjhj=nY1wgyVO%2fE%2bFsQNfsmn%2f4OZ3BP5vHo5NcMahtvvHLIc%3d . As well, and as Gary pointed out with his second link, for a module bonding/grounding method to be acceptable, it must be recognized by the module manufacturer, no? Which means that any new bonding product on the market must have the blessing of each mod mfgr. (by way of letter or mention in its install manual). I have come across inspectors that actually look for this. Jason, you wrote I like the looks of that lug. However, I've been using WEEBs too long to go back now. I agree, and i'm not looking to replace weebs with these, but these certainly seem to have a place in the What do you use for the bonding connection from the ?rails? This SGB lug was suggested for this purpose as well. Benn DayStar Renewable Energy Inc. www.daystarsolar.ca * Ph: 780-906-7807 Construction Electrician Solar Photovoltaic Systems Certified Certificate # 0007S HAVE A SUNNY DAY On 27/08/12 2:35 PM, Gary Willett g...@icarussolarservices.com wrote: Here's the Ilsco listing from UL, where it's classed as Grounding and Bonding Equipment: http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name =KDER.E34440ccnshorttitle=Grounding+and+Bonding+Equipmentobjid=1074099002 cfgid=1073741824version=versionlessparent_id=1073988940sequence=1 The GuideInfo for Grounding Bonding Equipment lists: Grounding and Bonding for Photovoltaic (PV) Systems Grounding and bonding equipment intended for use in PV systems are additionally investigated in combination with the PV module/panel (see QIGU) to the applicable requirements for such products. Installation instructions provided with the PV system (see QIGU) identify the specific grounding and bonding device that has been investigated and intended for use with that system. http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?na me=KDER.GuideInfoccnshorttitle=Grounding+and+Bonding+Equipmentobjid=107409 8839cfgid=1073741824version=versionlessparent_id=1073988940sequence=1 Regards, Gary Willett, PE On 8/27/2012 3:20 PM, David Brearley wrote: Yes, sorry. I wasn't speaking of this lug...I like the redesign. Looks quicker and easier and robust. On Aug 27, 2012, at 3:17 PM, Jason Szumlanski wrote: Yeah, but this one is marketed as a solar bonding lug. I think it's safe to say that it appropriately rated for outdoor use. It's always good to double-check, of course. Jason Szumlanski Fafco Solar On Mon, Aug 27, 2012 at 4:11 PM, David Brearley david.brear...@solarprofessional.com wrote: Some of the aluminum lugs are indoor-rated. They have a set screw will rust in an outdoor environment. That's one of the classic John Wiles slides. I'd just watch out 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 Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org http://www.solarenergy.org/ .org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Ilsco SGB bonding lug
Benn...it looks like that lug has stainless hardware for corrosion resistance as stated on the brochureThat would be the biggest consideration as David Brearly mentioned earlier in regards to rust potential. Stainless hardware and tin plating is equivalent to the WEEB lugsTin plating and stainless hardware is as good as anything else available as far as outdoor ratings are concerned. I see your point that it is not explicitly stated for outdoor usehowever being marketed for use with solar panels also seems to imply rather obviously that it is outdoor rated.in my unofficial opinion. -- Sunny Regards, Kirpal Khalsa NABCEP Certified Solar PV Installer On Mon, Aug 27, 2012 at 4:11 PM, benn kilburn b...@daystarsolar.ca wrote: Thanks for the feedback Wrenches, lots of interesting comments, However I'm still wondering….. How does one confirm that it is specifically approved for outdoor use? Other than assuming it is implied (because it is 'marketed' as a solar lug). As far as I can tell UL 467 does not imply outdoor rated as the aluminum lug GBL-4 is also UL467 listed. See here…GBL LAY-IN AL/CUhttp://ilsco.com//ProductsDetail.aspx?kfjkff=cjiDRFP14PUgtVid3pn1cQ%3d%3dfjjfhjhj=nY1wgyVO%2fE%2bFsQNfsmn%2f4OZ3BP5vHo5NcMahtvvHLIc%3d. As well, and as Gary pointed out with his second link, for a module bonding/grounding method to be acceptable, it must be recognized by the module manufacturer, no? Which means that any new bonding product on the market must have the blessing of each mod mfgr. (by way of letter or mention in its install manual). I have come across inspectors that actually look for this. Jason, you wrote I like the looks of that lug. However, I've been using WEEBs too long to go back now. I agree, and i'm not looking to replace weebs with these, but these certainly seem to have a place in the What do you use for the bonding connection from the ?rails? This SGB lug was suggested for this purpose as well. Benn DayStar Renewable Energy Inc. www.daystarsolar.ca * Ph: 780-906-7807 Construction Electrician Solar Photovoltaic Systems Certified Certificate # 0007S HAVE A SUNNY DAY On 27/08/12 2:35 PM, Gary Willett g...@icarussolarservices.com wrote: Here's the Ilsco listing from UL, where it's classed as Grounding and Bonding Equipment: http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=KDER.E34440ccnshorttitle=Grounding+and+Bonding+Equipmentobjid=1074099002cfgid=1073741824version=versionlessparent_id=1073988940sequence=1 The GuideInfo for Grounding Bonding Equipment lists: *Grounding and Bonding for Photovoltaic (PV) Systems *— Grounding and bonding equipment intended for use in PV systems are additionally investigated in combination with the PV module/panel (see QIGU) to the applicable requirements for such products. Installation instructions provided with the PV system (see QIGU) identify the specific grounding and bonding device that has been investigated and intended for use with that system. http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=KDER.GuideInfoccnshorttitle=Grounding+and+Bonding+Equipmentobjid=1074098839cfgid=1073741824version=versionlessparent_id=1073988940sequence=1 Regards, Gary Willett, PE On 8/27/2012 3:20 PM, David Brearley wrote: Yes, sorry. I wasn't speaking of this lug...I like the redesign. Looks quicker and easier and robust. On Aug 27, 2012, at 3:17 PM, Jason Szumlanski wrote: Yeah, but this one is marketed as a solar bonding lug. I think it's safe to say that it appropriately rated for outdoor use. It's always good to double-check, of course. Jason Szumlanski Fafco Solar On Mon, Aug 27, 2012 at 4:11 PM, David Brearley david.brear...@solarprofessional.com wrote: Some of the aluminum lugs are indoor-rated. They have a set screw will rust in an outdoor environment. That's one of the classic John Wiles slides. I'd just watch out 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 Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org .org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings:
Re: [RE-wrenches] Ilsco SGB bonding lug
When in doubt .. ask the manufacturer. Dan --- On Mon, 8/27/12, Kirpal Khalsa solarwo...@gmail.com wrote: From: Kirpal Khalsa solarwo...@gmail.com Subject: Re: [RE-wrenches] Ilsco SGB bonding lug To: RE-wrenches re-wrenches@lists.re-wrenches.org Date: Monday, August 27, 2012, 6:42 PM Benn...it looks like that lug has stainless hardware for corrosion resistance as stated on the brochureThat would be the biggest consideration as David Brearly mentioned earlier in regards to rust potential. Stainless hardware and tin plating is equivalent to the WEEB lugsTin plating and stainless hardware is as good as anything else available as far as outdoor ratings are concerned. I see your point that it is not explicitly stated for outdoor usehowever being marketed for use with solar panels also seems to imply rather obviously that it is outdoor rated.in my unofficial opinion. -- Sunny Regards, Kirpal Khalsa NABCEP Certified Solar PV Installer On Mon, Aug 27, 2012 at 4:11 PM, benn kilburn b...@daystarsolar.ca wrote: Thanks for the feedback Wrenches, lots of interesting comments, However I'm still wondering…..How does one confirm that it is specifically approved for outdoor use? Other than assuming it is implied (because it is 'marketed' as a solar lug). As far as I can tell UL 467 does not imply outdoor rated as the aluminum lug GBL-4 is also UL467 listed. See here…GBL LAY-IN AL/CU. As well, and as Gary pointed out with his second link, for a module bonding/grounding method to be acceptable, it must be recognized by the module manufacturer, no?Which means that any new bonding product on the market must have the blessing of each mod mfgr. (by way of letter or mention in its install manual). I have come across inspectors that actually look for this. Jason, you wrote I like the looks of that lug. However, I've been using WEEBs too long to go back now. I agree, and i'm not looking to replace weebs with these, but these certainly seem to have a place in the What do you use for the bonding connection from the ?rails? This SGB lug was suggested for this purpose as well. BennDayStar Renewable Energy Inc. www.daystarsolar.ca * Ph: 780-906-7807 Construction Electrician Solar Photovoltaic Systems CertifiedCertificate # 0007SHAVE A SUNNY DAY On 27/08/12 2:35 PM, Gary Willett g...@icarussolarservices.com wrote: Here's the Ilsco listing from UL, where it's classed as Grounding and Bonding Equipment: http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=KDER.E34440ccnshorttitle=Grounding+and+Bonding+Equipmentobjid=1074099002cfgid=1073741824version=versionlessparent_id=1073988940sequence=1 The GuideInfo for Grounding Bonding Equipment lists: Grounding and Bonding for Photovoltaic (PV) Systems — Grounding and bonding equipment intended for use in PV systems are additionally investigated in combination with the PV module/panel (see QIGU) to the applicable requirements for such products. Installation instructions provided with the PV system (see QIGU) identify the specific grounding and bonding device that has been investigated and intended for use with that system. http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=KDER.GuideInfoccnshorttitle=Grounding+and+Bonding+Equipmentobjid=1074098839cfgid=1073741824version=versionlessparent_id=1073988940sequence=1 Regards, Gary Willett, PE On 8/27/2012 3:20 PM, David Brearley wrote: Yes, sorry. I wasn't speaking of this lug...I like the redesign. Looks quicker and easier and robust. On Aug 27, 2012, at 3:17 PM, Jason Szumlanski wrote: Yeah, but this one is marketed as a solar bonding lug. I think it's safe to say that it appropriately rated for outdoor use. It's always good to double-check, of course. Jason Szumlanski Fafco Solar On Mon, Aug 27, 2012 at 4:11 PM, David Brearley david.brear...@solarprofessional.com wrote: Some of the aluminum lugs are indoor-rated. They have a set screw will rust in an outdoor environment. That's one of the classic John Wiles slides. I'd just watch out for that
Re: [RE-wrenches] Ilsco SGB bonding lug
Kirpal. The Ilsco lug GBL-4 also comes with a stainless steel set-screw as stated here.GBL LAY-IN AL/CU http://ilsco.com/ProductsDetail.aspx?kfjkff=cjiDRFP14PUgtVid3pn1cQ%3d%3dfj jfhjhj=nY1wgyVO%2fE%2bFsQNfsmn%2f4OZ3BP5vHo5NcMahtvvHLIc%3d if that is all it takes to use the AL lug outdoors (stainless steel set-screw), then why have we been steered towards the 'direct burial rated' tin-plated copper lug instead of an AL lug with SS set-screw? I'm not trying to make a case to not use the SGB lug, I like it and would like to keep some in stock, as they seem pretty useful, I just want to have my bases covered if/when an inspector questions me on them being approved for the application. Dan, Agreed! Been trying to get an answer from Ilsco, just tracking down the right person with the answers. Cheers, benn DayStar Renewable Energy Inc. www.daystarsolar.ca * Ph: 780-906-7807 Construction Electrician Solar Photovoltaic Systems Certified Certificate # 0007S HAVE A SUNNY DAY On 27/08/12 5:42 PM, Kirpal Khalsa solarwo...@gmail.com wrote: Benn...it looks like that lug has stainless hardware for corrosion resistance as stated on the brochureThat would be the biggest consideration as David Brearly mentioned earlier in regards to rust potential. Stainless hardware and tin plating is equivalent to the WEEB lugsTin plating and stainless hardware is as good as anything else available as far as outdoor ratings are concerned. I see your point that it is not explicitly stated for outdoor usehowever being marketed for use with solar panels also seems to imply rather obviously that it is outdoor rated.in my unofficial opinion. -- Sunny Regards, Kirpal Khalsa NABCEP Certified Solar PV Installer On Mon, Aug 27, 2012 at 4:11 PM, benn kilburn b...@daystarsolar.ca wrote: Thanks for the feedback Wrenches, lots of interesting comments, However I'm still wondering.. How does one confirm that it is specifically approved for outdoor use? Other than assuming it is implied (because it is 'marketed' as a solar lug). As far as I can tell UL 467 does not imply outdoor rated as the aluminum lug GBL-4 is also UL467 listed. See hereGBL LAY-IN AL/CU http://ilsco.com//ProductsDetail.aspx?kfjkff=cjiDRFP14PUgtVid3pn1cQ%3d%3dfjj fhjhj=nY1wgyVO%2fE%2bFsQNfsmn%2f4OZ3BP5vHo5NcMahtvvHLIc%3d . As well, and as Gary pointed out with his second link, for a module bonding/grounding method to be acceptable, it must be recognized by the module manufacturer, no? Which means that any new bonding product on the market must have the blessing of each mod mfgr. (by way of letter or mention in its install manual). I have come across inspectors that actually look for this. Jason, you wrote I like the looks of that lug. However, I've been using WEEBs too long to go back now. I agree, and i'm not looking to replace weebs with these, but these certainly seem to have a place in the What do you use for the bonding connection from the ?rails? This SGB lug was suggested for this purpose as well. Benn DayStar Renewable Energy Inc. www.daystarsolar.ca http://www.daystarsolar.ca * Ph: 780-906-7807 tel:780-906-7807 Construction Electrician Solar Photovoltaic Systems Certified Certificate # 0007S HAVE A SUNNY DAY On 27/08/12 2:35 PM, Gary Willett g...@icarussolarservices.com wrote: Here's the Ilsco listing from UL, where it's classed as Grounding and Bonding Equipment: http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=K DER.E34440ccnshorttitle=Grounding+and+Bonding+Equipmentobjid=1074099002cfgi d=1073741824version=versionlessparent_id=1073988940sequence=1 The GuideInfo for Grounding Bonding Equipment lists: Grounding and Bonding for Photovoltaic (PV) Systems Grounding and bonding equipment intended for use in PV systems are additionally investigated in combination with the PV module/panel (see QIGU) to the applicable requirements for such products. Installation instructions provided with the PV system (see QIGU) identify the specific grounding and bonding device that has been investigated and intended for use with that system. http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name= KDER.GuideInfoccnshorttitle=Grounding+and+Bonding+Equipmentobjid=1074098839 cfgid=1073741824version=versionlessparent_id=1073988940sequence=1 Regards, Gary Willett, PE On 8/27/2012 3:20 PM, David Brearley wrote: Yes, sorry. I wasn't speaking of this lug...I like the redesign. Looks quicker and easier and robust. On Aug 27, 2012, at 3:17 PM, Jason Szumlanski wrote: Yeah, but this one is marketed as a solar bonding lug. I think it's safe to say that it appropriately rated for outdoor use. It's always good to double-check, of course. Jason Szumlanski Fafco Solar On Mon, Aug 27, 2012 at 4:11 PM, David Brearley
Re: [RE-wrenches] Ilsco SGB bonding lug
I think the tin plating is to minimize/eliminate galvanic corrosion. Tim plated aluminum - now that sounds smart! Typos courtesy of my iPhone. On Aug 27, 2012, at 8:52 PM, benn kilburn b...@daystarsolar.ca wrote: Kirpal. The Ilsco lug GBL-4 also comes with a stainless steel set-screw… as stated here….GBL LAY-IN AL/CU if that is all it takes to use the AL lug outdoors (stainless steel set-screw), then why have we been steered towards the 'direct burial rated' tin-plated copper lug instead of an AL lug with SS set-screw? I'm not trying to make a case to not use the SGB lug, I like it and would like to keep some in stock, as they seem pretty useful, I just want to have my bases covered if/when an inspector questions me on them being approved for the application. Dan, Agreed! Been trying to get an answer from Ilsco, just tracking down the right person with the answers. Cheers, benn DayStar Renewable Energy Inc. www.daystarsolar.ca * Ph: 780-906-7807 Construction Electrician Solar Photovoltaic Systems Certified Certificate # 0007S HAVE A SUNNY DAY On 27/08/12 5:42 PM, Kirpal Khalsa solarwo...@gmail.com wrote: Benn...it looks like that lug has stainless hardware for corrosion resistance as stated on the brochureThat would be the biggest consideration as David Brearly mentioned earlier in regards to rust potential. Stainless hardware and tin plating is equivalent to the WEEB lugsTin plating and stainless hardware is as good as anything else available as far as outdoor ratings are concerned. I see your point that it is not explicitly stated for outdoor usehowever being marketed for use with solar panels also seems to imply rather obviously that it is outdoor rated.in my unofficial opinion. -- Sunny Regards, Kirpal Khalsa NABCEP Certified Solar PV Installer On Mon, Aug 27, 2012 at 4:11 PM, benn kilburn b...@daystarsolar.ca wrote: Thanks for the feedback Wrenches, lots of interesting comments, However I'm still wondering….. How does one confirm that it is specifically approved for outdoor use? Other than assuming it is implied (because it is 'marketed' as a solar lug). As far as I can tell UL 467 does not imply outdoor rated as the aluminum lug GBL-4 is also UL467 listed. See here…GBL LAY-IN AL/CU. As well, and as Gary pointed out with his second link, for a module bonding/grounding method to be acceptable, it must be recognized by the module manufacturer, no? Which means that any new bonding product on the market must have the blessing of each mod mfgr. (by way of letter or mention in its install manual). I have come across inspectors that actually look for this. Jason, you wrote I like the looks of that lug. However, I've been using WEEBs too long to go back now. I agree, and i'm not looking to replace weebs with these, but these certainly seem to have a place in the What do you use for the bonding connection from the ?rails? This SGB lug was suggested for this purpose as well. Benn DayStar Renewable Energy Inc. www.daystarsolar.ca * Ph: 780-906-7807 Construction Electrician Solar Photovoltaic Systems Certified Certificate # 0007S HAVE A SUNNY DAY On 27/08/12 2:35 PM, Gary Willett g...@icarussolarservices.com wrote: Here's the Ilsco listing from UL, where it's classed as Grounding and Bonding Equipment: http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=KDER.E34440ccnshorttitle=Grounding+and+Bonding+Equipmentobjid=1074099002cfgid=1073741824version=versionlessparent_id=1073988940sequence=1 The GuideInfo for Grounding Bonding Equipment lists: Grounding and Bonding for Photovoltaic (PV) Systems — Grounding and bonding equipment intended for use in PV systems are additionally investigated in combination with the PV module/panel (see QIGU) to the applicable requirements for such products. Installation instructions provided with the PV system (see QIGU) identify the specific grounding and bonding device that has been investigated and intended for use with that system. http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=KDER.GuideInfoccnshorttitle=Grounding+and+Bonding+Equipmentobjid=1074098839cfgid=1073741824version=versionlessparent_id=1073988940sequence=1 Regards, Gary Willett, PE On 8/27/2012 3:20 PM, David Brearley wrote: Yes, sorry. I wasn't speaking of this lug...I like the redesign. Looks quicker and easier and robust. On Aug 27, 2012, at 3:17 PM, Jason Szumlanski wrote: Yeah, but this one is marketed as a solar bonding lug. I think it's safe to say that it appropriately rated for outdoor use. It's always good to double-check, of course. Jason Szumlanski Fafco Solar On Mon, Aug 27, 2012 at 4:11 PM, David Brearley david.brear...@solarprofessional.com wrote: Some of the aluminum lugs are indoor-rated. They have a set screw will rust in
Re: [RE-wrenches] Ilsco SGB bonding lug
Benn, This product appears to be significantly superior to the old-school ILSCO tin-plated copper lugs. While those lugs may have been the best thing going 10 years ago, there have been many improvements. This looks like one of them. I would argue with the statement that tin-plated copper is industry best practice. This tin-plated aluminum product is more likely to hold up in direct contact to a PV module. We have seen the old ILSCO tin-copper lug deteriorate over time in more corrosive environments. Also, if you use bare aluminum equipment grounding conductors, all dissimilar metal issues would be resolved -even though this lug is clearly listed for copper or aluminum conductors. UL467 is the Grounding and Bonding equipment standard and does not have much in the way of environmental tests for outdoor use. That is why ILSCO is marketing that they have passed the additional ASTM B117-09 salt fog test since UL467 does not test outdoor conditions all that well. We are incorporating similar test requirements into the UL1703 (PV module) and UL2703 (PV mounting systems) standards. The only catch with this product is that if an AHJ insists that the PV module be listed with this device, very few, if any module manufacturers will have evaluated this device with their modules. As we change the UL1703 standard, it will be much simpler and cheaper for products like this to be evaluated for application on PV modules. If an AHJ accepts this product, I would definitely use it in place of the old ILSCO lay-in tin-copper lug. Bill. From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William Miller Sent: Monday, August 27, 2012 1:20 PM To: RE-wrenches Subject: Re: [RE-wrenches] Ilsco SGB bonding lug Benn: Good looking lug, looks very useful. It won't do any good on the Solar World Plus series unless they have the version 2.5 frame. The standard frame has no flange! William Miller At 12:49 PM 8/27/2012, you wrote: Wrenches, What is your take on this product from Ilsco? It appears to be a good option for bonding module frames and has been suggested by a distributor for bonding rails as well.. But industry best practice has steered us away from using aluminum lugs in favour of tin-plated copper lugs. SGB SOLAR GRND BND http://ilsco.com/ProductsDetail.aspx?kfjkff=0kMVXKLlROO4l5EwarhvPw%3d%3dfj jfhjhj=nFBt62Axh6IhPmrswva0nAkQKTu46vPAzpM1xJdnS3Y%3d SGB-4 http://ilsco.com/TechnicalDrawing/G1040.pdf ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
Re: [RE-wrenches] Ilsco SGB bonding lug
Yep. Definitely lower cost that tin-plated copper. Designed with PV frame grounding in mind. Lots to like On Aug 27, 2012, at 7:59 PM, Brian Mehalic wrote: I think the tin plating is to minimize/eliminate galvanic corrosion. Tim plated aluminum - now that sounds smart! Typos courtesy of my iPhone. On Aug 27, 2012, at 8:52 PM, benn kilburn b...@daystarsolar.ca wrote: Kirpal. The Ilsco lug GBL-4 also comes with a stainless steel set-screw… as stated here….GBL LAY-IN AL/CU if that is all it takes to use the AL lug outdoors (stainless steel set-screw), then why have we been steered towards the 'direct burial rated' tin-plated copper lug instead of an AL lug with SS set-screw? I'm not trying to make a case to not use the SGB lug, I like it and would like to keep some in stock, as they seem pretty useful, I just want to have my bases covered if/when an inspector questions me on them being approved for the application. Dan, Agreed! Been trying to get an answer from Ilsco, just tracking down the right person with the answers. Cheers, benn DayStar Renewable Energy Inc. www.daystarsolar.ca * Ph: 780-906-7807 Construction Electrician Solar Photovoltaic Systems Certified Certificate # 0007S HAVE A SUNNY DAY On 27/08/12 5:42 PM, Kirpal Khalsa solarwo...@gmail.com wrote: Benn...it looks like that lug has stainless hardware for corrosion resistance as stated on the brochureThat would be the biggest consideration as David Brearly mentioned earlier in regards to rust potential. Stainless hardware and tin plating is equivalent to the WEEB lugsTin plating and stainless hardware is as good as anything else available as far as outdoor ratings are concerned. I see your point that it is not explicitly stated for outdoor usehowever being marketed for use with solar panels also seems to imply rather obviously that it is outdoor rated.in my unofficial opinion. -- Sunny Regards, Kirpal Khalsa NABCEP Certified Solar PV Installer On Mon, Aug 27, 2012 at 4:11 PM, benn kilburn b...@daystarsolar.ca wrote: Thanks for the feedback Wrenches, lots of interesting comments, However I'm still wondering….. How does one confirm that it is specifically approved for outdoor use? Other than assuming it is implied (because it is 'marketed' as a solar lug). As far as I can tell UL 467 does not imply outdoor rated as the aluminum lug GBL-4 is also UL467 listed. See here…GBL LAY-IN AL/CU. As well, and as Gary pointed out with his second link, for a module bonding/grounding method to be acceptable, it must be recognized by the module manufacturer, no? Which means that any new bonding product on the market must have the blessing of each mod mfgr. (by way of letter or mention in its install manual). I have come across inspectors that actually look for this. Jason, you wrote I like the looks of that lug. However, I've been using WEEBs too long to go back now. I agree, and i'm not looking to replace weebs with these, but these certainly seem to have a place in the What do you use for the bonding connection from the ?rails? This SGB lug was suggested for this purpose as well. Benn DayStar Renewable Energy Inc. www.daystarsolar.ca * Ph: 780-906-7807 Construction Electrician Solar Photovoltaic Systems Certified Certificate # 0007S HAVE A SUNNY DAY On 27/08/12 2:35 PM, Gary Willett g...@icarussolarservices.com wrote: Here's the Ilsco listing from UL, where it's classed as Grounding and Bonding Equipment: http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=KDER.E34440ccnshorttitle=Grounding+and+Bonding+Equipmentobjid=1074099002cfgid=1073741824version=versionlessparent_id=1073988940sequence=1 The GuideInfo for Grounding Bonding Equipment lists: Grounding and Bonding for Photovoltaic (PV) Systems — Grounding and bonding equipment intended for use in PV systems are additionally investigated in combination with the PV module/panel (see QIGU) to the applicable requirements for such products. Installation instructions provided with the PV system (see QIGU) identify the specific grounding and bonding device that has been investigated and intended for use with that system. http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=KDER.GuideInfoccnshorttitle=Grounding+and+Bonding+Equipmentobjid=1074098839cfgid=1073741824version=versionlessparent_id=1073988940sequence=1 Regards, Gary Willett, PE On 8/27/2012 3:20 PM, David Brearley wrote: Yes, sorry. I wasn't speaking of this lug...I like the redesign. Looks quicker and easier and robust. On Aug 27, 2012, at 3:17 PM, Jason Szumlanski wrote: Yeah, but this one is marketed as a solar bonding lug. I think it's safe to say that it appropriately rated for outdoor use. It's always good to double-check, of course. Jason Szumlanski Fafco Solar On
Re: [RE-wrenches] Solmetric PVA and Tigo
Jesse, I'm not sure what you are referring to about PVA and optimizers. I'm not going to comment about optimizers although they seem very cool. I don't have a lot of personal experience with dc optimizers yet. I am very familiar with the Solmetric PV Analyzer which is an I-V curve tracer. It is the least expensive curve tracer on the market. At $3,000 list price it may seem pricy, but for what it does, it is cheap. There is a wireless sensor kit that has irradiance and temperature sensors that automatically load the values in with the I-V curve data. This is very helpful when you are doing numerous repetitive commissioning tests on large arrays, but at $1,500 list price, it is not worth it if you are only using the tracer occasionally and for diagnostic reasons. A simple hand-held irradiance meter and thermocouple on the back of a module is about 1/10 the cost. Also, the wireless sensors have a poor range (10-15 feet) so they are not intended to set up on one end of a commercial roof and leave there while you test an array. You can read what I wrote in SolarPro last year, but if there is any way your company can find a budget to buy one, it is worth it. The basic software that comes with it is marginal, but they have new software that costs extra and is hopefully much better. I also have a HukseFlux IV 400. This is more compact than the Solmetric, has wired irradiance and temperature measurements, and can accurately test modules which are a challenge for the Solmetric unit. The HukseFlux unit is more expensive at a list of about $5,000 with sensors but comes with better software for analysis. To get into a curve tracer cheaply, I would pick the Solmetric without wireless sensors. To use it for commissioning, both products have pros and cons and I would say I'm split between two. The main this is to get one and start using it since it will teach volumes about I-V curves. Bill. -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of boB Sent: Sunday, August 26, 2012 11:03 AM To: RE-wrenches Subject: Re: [RE-wrenches] Solmetric PVA and Tigo On 8/26/2012 7:54 AM, Jesse Dahl wrote: Hello, Has anyone has experience using the Solmetric PVA and optimizers? Is there any issues? Jesse You might ask Bill Brooks. He has a paragraph of recommendation right on the data sheet. for the handheld analyzer. boB ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
[RE-wrenches] Blue type
Friends: My tired old eyes really have trouble focusing on the blue type. Can we stick with plain old black, please? Thanks, William ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-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
