[RE-wrenches] DC positive and negative in same conduit, other inspection issues

[Kurt Albershardt]

On 8/19/09 15:41 , Dave Click wrote:
> Wiring was free air until it got near the disconnect, then the 
> positive wires entered an open 3' section of FNMC (no strain relief or 
> box at the other end of the FNMC). The negative wires ran through a 
> *separate* 3' section of FNMC.
>
> 1. Running the positive and negative wires through separate conduit 
> violates 300.3, and could cause eddy currents in the combiner/disc boxes.

You won't have a whole lot of eddy current in nonmetallic conduit.

This sounds more like it's being used as wire protection than as 
conduit.  Not sure where that fits (if at all.)