Stranded wire on outlets

[Buck Parrish]

In Carolina I always use solid. Out here in the Midwest, it's hard to find. Most suppliers here stock stranded. I am perplexed as to why.
With solid I can push it along way with out a fish tape.

 

[James L]

In Carolina I always use solid. Out here in the Midwest, it's hard to find. Most suppliers here stock stranded. I am perplexed as to why.
With solid I can push it along way with out a fish tape.

If you use solid ground and stranded for everything else, it pushes in really nice

 

[Buck Parrish]

If you use solid ground and stranded for everything else, it pushes in really nice

Yep. I've done that a lot. Small loop on the ground in front stagger and tape the others, spit a lugie on the end she'll go around 90's.

 

[ritelec]

Anyone know the ampacity rating of crimp connectors. I've always seen voltage and wire size ratings but no ampacity.

Never heard of twisting ccw

Pulls strands tight when screwing terminal screw rather than fanning out

 

[LarryFine]

Anyone know the ampacity rating of crimp connectors. I've always seen voltage and wire size ratings but no ampacity.

I would imagine at least equal to the wire size range.

 

[infinity]

IMO the prohibition of fork terminals on switches and receptacles is bogus. There are tens of millions of these devices terminated this way. If the fork terminal is properly installed the connection is far better than twisting stranded wire CCW and wrapping it around the screw.

 

[Hv&Lv]

IMO the prohibition of fork terminals on switches and receptacles is bogus. There are tens of millions of these devices terminated this way. If the fork terminal is properly installed the connection is far better than twisting stranded wire CCW and wrapping it around the screw.

EXACTLY!!!
That was my argument to the inspector. I told him the strands aren’t loose and potentially making contact with other things, easier to remove and replace if needed, and they are all over the place like this.
I even used the forks with the bend on the tips...
Still no go..

 

[winnie]

Never heard of twisting ccw

Pulls strands tight when screwing terminal screw rather than fanning out

When the wire is twisted CW and hooked around the screw head, when the screw is tightened CW it tends to loosen the twists in the wire.

When the wire is twisted CCW and hooked around the screw head, when the screw is tightened CW it tends to tighten the twists in the wire.

Of course you could always get devices that have 'left handed' screws which tighten CCW

-Jon

 

[James L]

When the wire is twisted CW and hooked around the screw head, when the screw is tightened CW it tends to loosen the twists in the wire.

When the wire is twisted CCW and hooked around the screw head, when the screw is tightened CW it tends to tighten the twists in the wire.

Of course you could always get devices that have 'left handed' screws which tighten CCW

-Jon

Physics is fascinating to me.

 

[Ismael Villegas]

fork always works for me!

 

[StarCat]

In Industrial we have always used Forks and when anyone says solid core wire is easier to terminate, I would say I do not agree with this statement.
I do not have much of any solid core wire in the shop, and I have worked on lots of equipment where motor loads were whipped in with Greenfield in the worst possible way. This is a recipie for single phasing. The other thing is the parallel screw terminals on receptacles that feed through down the line are notoroius for causing problems. I am without doubt that some also have a preferred way for stopping this one cold. Boxes that are packed full of solid core wire can break conductors trying to get all that mess back in. The size of the boxes at large relative to what people attempt to force in them is something I find " Shocking " and the amount of free space just seems to keep getting smaller on manufacured gear especially. This is because everything has been monetized and thats the way acounnting types sitting around board room tables think.

 

[don_resqcapt19]

IMO the prohibition of fork terminals on switches and receptacles is bogus. There are tens of millions of these devices terminated this way. If the fork terminal is properly installed the connection is far better than twisting stranded wire CCW and wrapping it around the screw.

I agree and that is a 110.3(B) rule that I would ignore.

 

[klillemo]

I do not see any admonition from 110.3(B) other than they must be listed. TE Connectivity (AMP) has a line called Plasti-Grip that appears suitable and is listed to UL486C.
Search Results | TE Connectivity

I prefer uninsulated connections for reliability, but it appears that only the insulated crimp spade terminals are listed for building wire. "These connectors are rated 600V max for building wire and 1000V for fixtures and signs in locations where" temp does not exceed 90°C. They are even rated for parallel wire combinations with 2 #14AWG. The only caveat is you must use the specified crimp tooling.

Can someone explain what I am missing?