Originally Posted by Wendell R. Breland
...IIRC, NEC states there are to be no splices in the ground wire between the mast and ground electrode.
While I've seen that same claim made over a dozen times in grounding threads, no one has ever accompanied such a claim with a NEC section citation. And a few forum contributors, including at least one licensed electrician, have insisted that if you use insulated grounding wire, the insulation has to be green, which I never do because black is found less objectionable by many customers, but I've never seen an NEC citation in support of that, either.
It is possible that there are requirements that the ground wire be continuous and that insulated ground wires be green in other sections where the safety concerns are greater, like it could be that the ground wire that bonds the service entrance (meter), the service panel (primary breaker) and the ground electrodes together has to be continuous, and it could well be that ground wire used to ground the third conductor of a 110 volt plug has to have green insulation, when insulated, because of the magnitude of the risks that can occur if those grounds fail or are misconnected, but like the 250 section ground rod specifications, which do not apply to all ground rods, there may be explicit stipulations and prohibitions on splicing and insulation color that only apply to the section or subsection of the code in which they appear.
There is a UL listed product called a split bolt that seems to exist just for the purpose of splicing ground wires. Here is a description of them from Allied Bolt Inc's catalog:FUNCTION
Split Bolts are used to mechanically bond copper wires of various sizes. Allied’s Split Bolts are approved for use in grounding, bonding, electrical and direct burial applications.
Yet there are split bolts that are too small to couple a mast ground wire or an outer conductor wire with even the smallest (6 gauge) permissible bonding conductor, so if ground wires have to be continuous, of what use could they possibly be?ASKA SB-8 Split Bolt UL-Listed DNAASK1005
Model SB-8UL Split bolt is UL-listed and Dish Approved.
I would also use my own ground wire clamp (available at Home Depot, Lowe's, Ace, etc.) to the ground electrode.
Back when DISH Network used to give a "free" (Value: $79.99) installation kit with each system it sold, they used to include 25 feet of 8 gauge aluminum ground wire and so, when a residential customer copped out on the self installation and pawned it off onto me, I used to use the zinc plated version of the style clamp shown above to interface the aluminum ground wire with the copper water pipe. I don't know for sure if it is permissible to use a zinc plated clamp to attach an aluminum wire. Does anyone here know?