An acorn ground clamp is designed to clamp onto the ground rod and secure a
ground wire to it. It is bronze alloy and rated for direct burial. Pretty
common. If you want cadweld, I guess you can demand cadweld.
http://www.richards-mfg.com/PDF/AcrnCatalogPage.pdf
73
> I have asked my builder to lay a couple of my ground radials, for
> lightning dispersal, under the slab of my new home. I had specified
> CadWelded connections; his quote was returned as using "acorn ground
> clamps". I do not know what these are, but I am sure they are not as
> good as a
> CadWelding.
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