GROUNDING AND BONDING
EQUIPMENT (KDER)
pg. 64
2004 GENERAL INFORMATION DIRECTORY
Ground Clamps — Strap type ground clamps are not suitable for attachment of the grounding conductor of an interior wiring system to a grounding electrode.
Go to the forth paragraph down and it reads;
Clamps are intended for use with rod and/or pipe electrodes in accordance with the NEC and are marked with the size of electrode and electrode grounding conductor with which the clamp is intended to be used.
The 'strap type' clamp in the first part is a strap of perforated metal that you literally wrap around the pipe and install a nut and bolt between to of the perforations to tighten it up. IMO a piece of junk.
The clamp in the picture may very well be UL listed for that use.
AM I the only one who considers this an improper means of splicing the GEC?
Theres that and I was wondering why someone ran such a large conductor to an ground rod.
6 AWG Copper is all the NEC requires.
Bob