Posted by John T on October 05, 2014 at 07:34:04 from (216.249.72.121):
In Reply to: Electrical Wire Nuts posted by DoubleR on October 05, 2014 at 06:16:55:
My OPINION based on what I recall was what the Wire Nut manufacturers claim (you would think they just might know best) IS TO PLACE THE STRIPPED WIRE ENDS IN PARALELL AND INSTALL THE WIRE NUTS BUT DO NOTTTT PRE TWIST THE WIRES FIRST.
Looks to me like in parallel (NOT pre twisted) there will be more strength and surface area and best conductivity once the nut is tightened versus if you pre twist the wires which yields high and low spots in which case the wire nut don't bite and make as much actual wire contact since it only contacts the high spots.
It was my practice to place in parallel then twist then finish up with a couple more extra twists which spiriled the outer insulation a couple turns which added some mechanical strength.
I VOTE FOR DO NOTTTTTTTTTT PRE TWIST AND THEN ADD A COUPLE MORE TURNS SO THE INSULATED PORTION ADDS SOME MECHANICAL STRENGTH. I didn't add tape or sealer but see no problem if a person chooses to do so.
That's my story n Ima stickin to it lol
PS The question didn't raise the issue of solder use (ONLY twist or not) so I didn't get into that
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