[RE-wrenches] AC DC in Raceway

Wrenchers, What's the deal with mixing AC and DC conductors in a raceway? The job in question has a 6x6 wireway under the inverters. Conductors will have their own conduits but is it ok for them to share the wireway? Thanks in advance for clarification on this, Nik -- Nicholas Ponzio Building

Re: [RE-wrenches] AC DC in Raceway

No problem, so long as the insulation is rated for the highest voltage conductor. Conductors of other systems (like premise wiring) can not be in the raceway. At 07:02 AM 9/24/2009, you wrote: Wrenchers, What's the deal with mixing AC and DC conductors in a raceway? The job in question has

[RE-wrenches] Modules Supported only at Short End

Hello Wrenches, Typical PV modules installation instructions show modules being supported with two supports each spaced 25% of module length in from the short edge of the module. I'm looking for information on PV modules which can be supported on a mounting structure using only the short edge of

Re: [RE-wrenches] AC DC in Raceway

Nik, we always use 4x4 gutters when ever possible - keeps things clean and neat - as long as insulation voltage rating is same on all wires and wires are bundled (AC and DC - tie wraps or tape) and it's all from the same system (house wiring is another system) then it's OK... Max

Re: [RE-wrenches] Modules Supported only at Short End

some sharp modules, not all. --- On Thu, 9/24/09, swingjunkie swingjun...@gmail.com wrote: From: swingjunkie swingjun...@gmail.com Subject: [RE-wrenches] Modules Supported only at Short End To: RE-wrenches@lists.re-wrenches.org Date: Thursday, September 24, 2009, 10:23 AM Hello Wrenches,

Re: [RE-wrenches] AC DC in Raceway

Bundling is a good idea, I to that too. But where does it say we have to do it? At 09:43 AM 9/24/2009, you wrote: Nik, we always use 4x4 gutters when ever possible - keeps things clean and neat - as long as insulation voltage rating is same on all wires and wires are bundled (AC and DC - tie

Re: [RE-wrenches] AC DC in Raceway

I am not aware of any type of installation where the NEC would require bundling in a gutter. I have seen some non-metallic raceways with built-in partitions for low-voltage and line-voltage wiring, but of course this type of product wouldn't be applicable for the AC/DC separation you're looking

Re: [RE-wrenches] AC DC in Raceway

Hi Darryl, For what it's worth, the '08 Handbook explains regarding 690.4(B): For example, 690.4(B) does not permit the conductors supplying an exterior luminaire located in close proximity to a roof-mounted PV array to be installed in the same raceway or conductors of of PV sources

Re: [RE-wrenches] AC DC in Raceway

On this one we can give John Wiles some credit. He was the only one years ago to interpret that section (690.4) as preventing, say, running landscape lighting in the same conduit as PV array wiring. He didn't make any distinction between PV source and output circuits, or between DC and AC current

Re: [RE-wrenches] AC DC in Raceway

Thanks, but I am still concerned, the Handbook is not the code. In wire ways it is possible to include a divider, and pass the conduit from one source through the top half of the wire way and terminate in the lower half. Still neat, and yes we have had AHJ demand that separation. Darryl ---