approved methods for splicing bare cu-awg6 gec (outdoors)?
Let's say you've got Ye Olde bare nekkid 6 ga. copper wire emerging from the POCO meter housing, and it used to just run diagonally across the wall and clamp onto the copper water pipe service entrance... which is now the PVC water pipe service entrance... so now you gotta do the ground rod thing... and you don't want to open meter housing to run whole new length.
I was thinking just shine up that old wire to match the new, overlap them about 2" end-to-end, twist them together REAL tight with the Klein-nines, then solder the whole splice zone... or does NEC require some whiz-bang clamping device made by a mega-corporation?
Splice would be above ground, if that matters.
PS: How deep does Grounding Electrode Conductor have to be buried, on run out to grounding electrode?
Thanks in advance.