[TheForge] EMT markings

[Bob Ehrenberger]

Dave,

Thanks for the information, I hadn't thought of that. In my neck of the 
woods we don't have inspectors. The county assessor drives onto the property 
once a year to see if you have added any new buildings that he can tax.

I put up my shop in 1999 and bought most of my conduit at that time.  Though 
I do get a few pieces each year to use for candle cups.  Now I need to be 
carefull not to have the stamped letters EMT show up in the finished piece.

Robert Ehrenberger
Shelbyville, Mo.
eforge at centurytel.net

Date: Tue, 3 Nov 2009 13:19:20 -0500
From: "David E. Smucker" <davesmucker at hotmail.com>
Subject: [TheForge] Fw:  EMT markings
To: "theforge" <theforge at mailman.qth.net>

Bob,  I think it has been marked for some time now, at least several years.
My guess is that it start about the same time as color was introduced for
the outside of Romex.  White - #14, Yellow - #12, Orange - #10 etc.  This
was started in 2001 to help inspectors see what had been installed.  Romex
can still be used with the white jacket in all sizes but new manufacture
must have the colors.

EMT isn't really conduit -- it is "thin wall" conduit not to be confused
with real conduit used for industrial electrical applications.  Real conduit
has straight thread pipe threads.  My guess, is that the marking is to once
again help inspectors know what is installed.

Dave