The units we have used have a large contactor inside the combiner box made by AMtec Solar. this was required to control the shut down includes a fire button done on the ground floor Jerry
On Mon, Feb 2, 2015 at 5:49 AM, Mark Frye <ma...@berkeleysolar.com> wrote: > Jerry, > > What unit did you use? > > Mark Frye > > > On 2/2/2015 7:43 AM, Jerry Shafer wrote: > > Wrenches > We have installed some of these rapid shut down units and they are always > located close to the array and ours kill the DC instantly as long as the > inverter was running when this accures did not test it with inverters > already off. > Jerry > On Feb 2, 2015 5:34 AM, "Christopher Warfel" < > cwar...@entech-engineering.com> wrote: > >> We have a interpretation problem among some people I work with with, and >> 690.12 Rapid Shut Down and the the 10 second time for reducing ac and dc >> conductors to 240ma, and 30V. The word "initiation" seems to indicate that >> all affected conductors need to be at these levels within 10 seconds of >> de-energizing either the ac or dc conductors. If so, then the disconnects >> need to be co-located to meet this requirement if this interpretation is >> correct. >> >> I have read Mr. Brook's article in Solar Pro, but AHJs may feel >> differently. >> >> Would anyone care to weigh in on their interpretation? >> >> Thank you, Chris >> >> >> >> >> >> -- >> Christopher Warfel, President >> ENTECH Engineering, Inc. >> PO Box 871, Block Island, RI 02807 >> 401-466-8978 >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> >> > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & > settings:http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette:www.re-wrenches.org/etiquette.htm > > Check out or update participant bios:www.members.re-wrenches.org > > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > >
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