Hmm...no voltage...must've left the fuse out of this holder...lemme just open it up a take a quick looksie....
On Thu, Mar 29, 2012 at 3:41 PM, David Brearley < [email protected]> wrote: > That was my suspicion as well. Simple wiring mistake. Inadequate > commissioning protocol. > > > > On 3/29/12 2:02 PM, "Bill Brooks" <[email protected]> wrote: > > All, > > It is very likely that the something gone very wrong was a wiring mistake > by the installing contractor. Many installers are clueless about the danger > and consequences of getting the polarity wrong in strings or combiner box > circuits. It is very likely that the contractor mixed up their combiner box > circuits causing the combiner boxes and conductors to catch on fire as soon > as the fuses were installed. > > Polarity should be checked and verified on all circuits a total of 2 or 3 > times during the course of installation and commissioning. It is the single > most important test from a safety point of view. > > Bill. > > > *From:* [email protected] [ > mailto:[email protected]<[email protected]>] > *On Behalf Of *David Brearley > *Sent:* Thursday, March 29, 2012 8:25 AM > *To:* RE-wrenches > *Subject:* Re: [RE-wrenches] WOW Something Gone Very Wrong > > Perfect example of why it’s a good idea to start designing and deploying > systems now that meet the fuse servicing requirements found in NEC > 2011—even if these are not required by your AHJ yet. > > People on this list are probably ahead of that curve. If not, you might > want to check out these articles: > > http://solarprofessional.com/article/?file=SP4_3_pg14_QA_2&search= (Bill > Brooks article on Fuse Servicing disconnect requirements) > > http://solarprofessional.com/article/?file=SP4_3_pg64_Hren&search= (Changes > to Code in 2011; See content under “690.6, Fuses” subheading) > > David Brearley, Senior Technical Editor > *SolarPro* magazine > NABCEP Certified PV Installer ™ > > On 3/29/12 9:36 AM, "Mark Frye" <[email protected]> wrote: > > * > > > Rooftop solar installation sparks fires in Trenton, New Jersey* 28.03.2012: > According to local news portal NJ.com, a rooftop solar system has triggered > several small fires at a recycling center in Trenton, New Jersey. The > article reports that “a major malfunction in the rooftop solar panel…caused > small fires and surges of electricity producing arcs of current to break > out.” According to Fire Battalion Chief Rich Seeds, “There definitely was a > problem with the installation, the equipment.” Firefighters on the scene > said that an inverter was “sparking and unusable.” The firefighters, with > the help of electricians, had to manually disconnect the 100-panel system > from the electrical grid before they could safely put out the fire. The > fire started while electricians were hooking up junction boxes on the > system. Earlier this month, a New Jersey General Assembly committee > approved a bill (A266) that would require buildings to clearly label with > an exterior emblem whether they have solar panels installed on the > premises. The measure, recommended by the National Fire Protection > Association, is aimed at protecting firefighters from dangers posed by > solar panels. The greater Assembly has yet to discuss the bill, but the New > Jersey Senate version of the bill (S507) was introduced in the Senate on > Jan. 10, 2012 and is currently being reviewed by the Senate Environment and > Energy Committee. … Source: NJ.com, New Jersey Assembly Republicans, > eLobbyist; Summary: PHOTON > > *http://www.nj.com/mercer/index.ssf/2012/03/trenton_firefighters_battle > _ro.html* < > http://www.nj.com/mercer/index.ssf/2012/03/trenton_firefighters_battle_ro.html> > > > > *http://www.njassemblyrepublicans.com/?p=2862* < > http://www.njassemblyrepublicans.com/?p=2862> > > > ------------------------------ > > > > > ------------------------------ > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [email protected] > > 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 > > > David Brearley, Senior Technical Editor > *SolarPro* magazine > NABCEP Certified PV Installer ™ > [email protected] > Direct: 541.261.6545 > Fax: 541.512.0343 > * > *Visit our Web site at solarprofessional.com > > (Sample copy available for download at: solarprofessional.com/sample) > > > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [email protected] > > 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 > > > -- ======================== 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 Carbondale, CO 81623 http://www.solarenergy.org
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