[RE-wrenches] PV direct pump under 30V and conduit in building

[Kent Osterberg]

Jason,

690.31(A) permits PV wiring for circuits below 30 volts to be installed 
in accessible locations without conduit or raceways. But 690.31(E) 
requires the use of metal raceways for PV circuits inside a building. It 
does not require EMT. It specifically allows MC cable. Unless there are 
local codes specifying otherwise, MC cable should be allowed. Even that 
is overkill for a small 12-volt module.

Kent Osterberg
Blue Mountain Solar, Inc.
www.bluemountainsolar.com


On 5/3/2012 9:34 AM, Jason Szumlanski wrote:
> I'd like some help with code references for an inspector that is 
> requiring EMT for a 12V PV panel that runs a solar water heating 
> circulation pump. The wiring is run through the attic and down to the 
> pump near the water heater. I've never ran into this before (but I 
> have run into this inspector). :)
>
> Jason Szumlanski
> Fafco Solar
>