Irreverable crimped connectors for grounding [RE-wrenches]

[David Brearley]

Damian,

If you search for "C-Taps" you will find what you are looking for.  Here is
a sample:

http://www.specialized.net/ecommerce/shop/seriesmaster.asp?series_id=Copper+
C-Taps

The crimper tool is the same one used for large battery crimp lugs.

David Brearley
NABCEP Certified Solar PV System Installer (TM)
 
Meridian Energy Systems
2300 S. Lamar, Suite 107
Austin, TX 78704
512-448-0055 (ph)
512-448-0045 (fax)
www.meridiansolar.com

-----Original Message-----
From: Damian de Caires [mailto:damian at thesolarcenter.com] 
Sent: Tuesday, September 05, 2006 9:14 AM
To: RE-wrenches at topica.com
Subject: Irreverable crimped connectors for grounding [RE-wrenches]


Recently I got cited for failure to install a direct connection GEC to
the Ground electrode as per NEC 690.47-C  In the code it does require a
GEC unbroken from one inverter to ground rod, any additional inverters
can have a GEC pigtailed to this line but the crimp has to be
irreversible.  It is uncommon for a crimp capable of holding 2x #6 wires
being also irreversible.  In the code it defines irreversible crimps (in
250) as either a crimp that will break when removed or a welded bond.
My idea is to use a split nut and solder the threads so the bolt can not
be unscrewed.  Currently I have contacted Watson & Bates for a part.  If
anyone can recommend a crimp let me know.


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