ok here is my answer for the temp service :
1) i use it call wedge clamp it make by blackburn compaine it is very common item almost all electral supply centre will have them
2) quadplex BUT one warning for all acsr cables do not use ornaly side cutters it will wreck them in hurry i use specal cutter for ascr simuair to bolt cutter but specical modifation to it and the ascr will be pretty good size steel wire duplex, triplex,and quadplex have them so watch out
3) see nec 310.20 but check poco first
4) tri and quadplex do have rib for identifcation ( you can feel it )
merci marc
