[RE-wrenches] Square D DC disconnects

[R Ray Walters]

I got into that one a few years ago with an inspector. 
He cited 110.2.
"Approved" according to article 100 means: acceptable to the AHJ. 
So put article 100 into 110.2 and you get:
 "Conductors and Equipment required or permitted shall be acceptable only if 'acceptable to the AHJ' "

Basically I call these 2 sections of the code read together as the 'AHJ = The Man' ruling.
I guess there was some politics involved in NOT putting that together for all to see?

R. Walters
ray at solarray.com
Solar Engineer




On Jan 11, 2010, at 5:27 PM, Kent Osterberg wrote:

> David,
> 
> The NEC doesn't require UL listing.  The most appropriate section of the code about this is Article 110, Requirements for Electrical Installations, it requires equipment to be approved.