My question would be about the insulation. Would welding compromise the insulation on the conductors and how are you going to insulate the splice? One layer of heat shrink will not be "covered with an insulation equivalent to that of the conductors" 110.14(B)
That article does identify "welding" as an acceptable method tho.
I suppose if this was more popular method someone would go to the effort to come up with a listed insulation system beyond tape or multiple layers of heat shrinkable tubing. (assuming that is even acceptable to an AHJ).


Greg Fretwell