I have a project for 250kW system. 4/12 pitch standing seem roof in the Great Lakes snow country. My initial proposal was to get the source strings through the roof and inside to serviceable combiner locations. This was shot down by the architect who did not want 5 holes punched in his new roof. So we then shift to pass thru Jboxes where we transition the PV wire to THWN-2 and into RMC back to the desired point of entry. The electrical sub on the project has now proposed to reduce expense by replacing the RMC with cable trays and running USE-2 in the cable tray from the JBOX back to the point of entry.
I'd appreciate your thoughts on the use of the cable tray and USE-2 on the roof top. WIth REgards Carl Adams NABCEP cert 031508-1 _______________________________________________ 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
