Typical number of strands #10 AWG Copper

B

brycenesbitt

Senior Member
Location
United States
Without asking Gemni, how many strands are typical for #10 cable?

I was doing a build in a UL508A facility and all the #10 wire they had was very fine stranded, and was a royal PITA to get into the lugs cleanly.
I brought some 19 strand wire and that was fine. Are there other strand counts available (I've never cared before ;-)
 
7 and 19 are Class B and C stranding respectively per Chapter 9. Table 10. Standard terminations are only suitable for conductors with Class B and C standing. 37 strands is also a common stranding for 10AWG, especially if it is MTW.

Note that the stranding in post 3 does not match up with that in Chapter 9, Table 10.
 
Here's are pictures of the actual terminals involved.
It looks like a good design in that the curved element will gather strands rather that have them spread out over time.

The UL508A shop only had the fine strand wire: we went through their entire inventory, same stuff. Had to go get my own.
 

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In olden times (1981) there was:
for 10AWG, 37/26AWG, 49/27AWG and 105/30AWG
for 12AWG, 7/20AWG, 19/25AWG, 65/30AWG, 165/34AWG

Each with slightly different resistance (but times have changed).
 
brycenesbitt said:
Here's are pictures of the actual terminals involved.
It looks like a good design in that the curved element will gather strands rather that have them spread out over time.

The UL508A shop only had the fine strand wire: we went through their entire inventory, same stuff. Had to go get my own.
Click to expand...
This is what ferrules are for. We ferrule pretty much everything when we build control panels precisely because of the fine stranding of the MTW wire we use. Get a ferrule kit and a good crimper.


SceneryDriver
 
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