[RE-wrenches] Rooftop DC disconnects

this is already required in Los Angeles county in a county ordinance. They are looking for dc disconnect directly after any combiner box and no conduit entering a building without disconnect- both commercial and residential. You wont see it in NEC unless you look in the 2002. I dont have the ord

Re: [RE-wrenches] grounding of hot water collectors

Some water systems are all plastic except for the solar water heating system. I agree atmospheric energy I would think would effect the absorber plates more than frames, but I am not atmospheric energy. Then grounding the piping system should be adequate, and a copper pipe should be better tha

Re: [RE-wrenches] Rooftop DC disconnects

I like the idea for larger systems, someone tell Sq. D to make a 4 blade 600 volt disconnect. I would like to see it disconnect the "fuse grounded" conductor also. and then it could be a combiner and load rated disconnect. darryl --- On Tue, 9/22/09, Chris Anderson wrote: > From: Chris And

Re: [RE-wrenches] Rooftop DC disconnects

I am pretty sure it is in the draft of the 2011 code. While we are not governed yet by the 2011 code, I think it is good practice and is something we should all do sooner than later. Borrego is moving that direction as we speak. No reason to wait around for the code to tell us what we have to do

[RE-wrenches] Rooftop DC disconnects

I am being told we need rooftop DC disconnects for a 6 string commercial solar install, instead of DC disconnects in the mech room. I don't see anything about this in the NEC. Any truth to this? thanks Troy Harvey - Heliocentric 801-453-9434 tahar...@heliocentric.org __

Re: [RE-wrenches] wrenches list- wire reducers

Colleagues: Some could not open the tiny URL. Here is a full URL for the Ilso line: http://www.ilsco.com/ProductsDetail.aspx?kfjkff=OAEZSVkMfBWEECuHv28GcQ%3d%3d&fjjfhjhj=LhaI%2fYkpvSVw1sKKc07QxKB1LBKiNLvuN5AVp5Sa2fE%3d You can select one pole, one primary and one secondary from the filter and

[RE-wrenches] Click Sys

Hello Wrenches, How do you rate the UniRac, ClickSys mounting systems? What are your likes and dislikes? Thanks, Drake Chamberlin Athens Electric OH License 44810 CO License 3773 NABCEP TM Certified PV Installer Office - 740-448-7328 Mobile - 740-856-9648 _