To be clear, the screws I'm recommending are not a sheet metal screws,
they have 12-24 threads like large ground screws. It just drills and
taps in one shot. In 1/8" or thicker metal, it gets the code required
minimum 2-1/2 threads of contact. As I stated in my first post, regular
sheet metal screws won't work.
Ray Walters
Remote Solar
On 1/28/2025 5:50 PM, William Miller via RE-wrenches wrote:
Practices:
I would avoid the use of any kind of sheet metal screw. Those are
expressly prohibited in the Code. I would research problems with
dissimilar metals and find readily available solutions for the
problem. These is likely no problem one of us can face that has not
been faced before by someone, somewhere. Find out what others have done.
Once you educate yourself you will then have the tools to modify your
approach, if needed, or to argue your case if you are convinced your
approach is correct.
I hope this helps.
William Miller
Miller Solar
17395 Oak Road, Atascadero, CA 93422
805-438-5600
www.millersolar.com <http://www.millersolar.com/>
CA Lic. 773985
*From:*RE-wrenches [mailto:[email protected]]
*On Behalf Of *Mark Frye via RE-wrenches
*Sent:* Tuesday, January 28, 2025 12:33 PM
*To:* RE-wrenches
*Cc:* Mark Frye
*Subject:* [RE-wrenches] Attaching Ground To Steel Frame
Folks,
I am going to have a steel frame for my stand alone power supply to be
dropped on the ground out in the elements.
I was planning to weld a stainless bolt to the mild steel frame to
provide a corrosion resistant point of connection.
I am getting a lot of push back on this.
What are other folks do to create a connection for a system grounding
electrode conductor on a piece of equipment like this?
Thanks,
Mark Frye
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