You pull the meter you close the contact thats it so ypu dont hit the button but same results On Feb 2, 2015 11:06 AM, "Mark Frye" <[email protected]> wrote:
> I really do wonder then... > > Right now, you go up to the burning house and pull the meter, bingo, no AC > anywhere. So why do we need the "kill" switch next to the service (or where > ever).... IF you drive the roof top contactor with 120vac or with 24 vdc > made from a power supply powered by 120vac. Either way, pull the meter, no > more AC and no more power to the contactor coil on the roof, so DC limited > to the location of the contactor. > > Not really sure how the requirement for the stop switch got into the Code. > > Mark Frye > > On 2/2/2015 11:11 AM, Mark Frye wrote: > > I see. So they have another box on the ground floor with the "kill" switch > and that box includes a 120/240 vac to 24vdc xfrm to drive the contactor > coil on the roof? So you run 120/240 vac to the box with the "kill" switch? > > Mark Frye > On 2/2/2015 10:52 AM, Glenn Burt wrote: > > Looks like they use 24VDC for contactor activation, not 120VAC. > > > > *From:* RE-wrenches [mailto:[email protected] > <[email protected]>] *On Behalf Of *Mark Frye > *Sent:* Monday, February 02, 2015 1:29 PM > *To:* RE-wrenches > *Subject:* Re: [RE-wrenches] Rapid Shut Down and the 10 Second Rule > Questions > > > > OK. So did you run a line 120V up to the box on the roof to energize the > coil of the relay up there? > > Mark Frye > > On 2/2/2015 9:13 AM, Jerry Shafer wrote: > > 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 <[email protected]> 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" < > [email protected]> 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: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/[email protected]/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: [email protected] > > > > Change listserver email address & settings: > > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > > > List-Archive: > http://www.mail-archive.com/[email protected]/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: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/[email protected]/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: [email protected] > > > > Change listserver email address & settings: > > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > > > List-Archive: > http://www.mail-archive.com/[email protected]/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: [email protected] > > Change listserver email address & > settings:http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/[email protected]/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: [email protected] > > Change listserver email address & > settings:http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/[email protected]/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: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/[email protected]/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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