I only use this signage, when its true. Gridtie inverters interrupt output in milliseconds, so I don't use it on AC. My understanding is that it does apply to array disconnects, as the inverter capacitors could still have a charge, that would render the "live on both sides" idea true on DC. I also see this as appropriate signage in some battery based situations. Personally, I see a serious problem with too much signage: people won't read any of it, if there's too much.
R. Walters r...@solarray.com Solar Engineer On May 17, 2010, at 2:47 PM, Dave Click wrote: > Quick poll- how many inspectors/utilities out there require the "live on both > sides" label for AC Disconnects, even after you explain to them this only > applies to DC disconnects? Even though it's inaccurate, I feel that it at > least gives unqualified personnel pause before they open up a switch to > something they don't understand. > > DKC > > Dana wrote: >> This was our last batch >> >> *Labeling For Grid-tie Solar Electric System* >> >> *Great Solar Works, Inc., 970-626-5253* >> >> * * >> >> * KNOPP SIGNS *** >> >> * * >> >> *Qty – 2, Color red* >> >> * * >> >> *INTERACTIVE SYSTEM POINT OF INTERCONNECTION* >> >> *Enphase Micro-Inverters [1] per module [17] Total* >> >> * * >> >> *PHOTOVOLTAIC SYSTEM SOURCE* >> >> * * >> >> * PV System Total Watts 3.910 KW* >> >> * Maximum AC Output Operating Current 13.6 Amps* >> >> * AC Operating Voltage 240 Volts * >> >> * * >> >> *For information and service contact: * >> >> *Great Solar Works, Inc., 970-626-5253* >> >> * * >> >> *Qty – 1, Color red* >> >> * * >> >> *PHOTOVOLTAIC SYSTEM SOURCE* >> >> * * >> >> * PV System Total Watts 3.910 KW* >> >> * Maximum AC Output Operating Current 13.6 Amps* >> >> * AC Operating Voltage 240 Volts * >> >> * * >> >> *For information and service contact: * >> >> *Great Solar Works, Inc., 970-626-5253* >> >> * * >> >> *Qty – 1, Color red* >> >> * * >> >> *PHOTOVOLTAIC AC SYSTEM UTILITY DISCONNECT* >> >> *WARNING - ELECTRIC SHOCK HAZARD - DONOT TOUCH TERMINALS.* >> >> *TERMINALS ON BOTH THE LINE AND LOAD SIDES MAY BE ENERGIZED* >> >> *IN THE OPEN POSITION. IF A GROUND FAULT IS INDICATED THE NORMALLY >> GROUNDED CONDUCTORS MAY BE ENERGIZED AND UNGROUNDED* >> >> * * >> >> *For information and service contact: * >> >> *Great Solar Works, Inc., 970-626-5253* >> >> * * >> >> *Qty -1, Color Yellow* >> >> * * >> >> *PHOTOVOLTAIC SYSTEM CONNECTED* >> >> *THE AC PV DISCONNECT IS LOCATED * >> >> *Next to Meter on South Wall * >> >> *For information and service contact: * >> >> *Great Solar Works, Inc., 970-626-5253* >> >> * * >> >> Thanks, Dana Orzel >> >> Great Solar Works, Inc >> >> E - d...@solarwork.com >> >> V - 970.626.5253 >> >> F - 970.626.4140 >> >> C - 970.209.4076 >> >> web - www.solarwork.com >> >> Responsible Technologies for Responsible People since 1988" >> >> >> >> _______________________________________________ >> 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
