- Location
- Massachusetts
Its not, there is an insulator between the brass and the strap.
Stranded wire on receptacles
- Thread starter steve66
- Start date
- Status
Its not, there is an insulator between the brass and the strap.
hillbilly1
Senior Member
- Location
- North Georgia mountains
- Occupation
- Owner/electrical contractor
Have not had to install an IG in a long time, don't even have one the truck, so I can't say for sure.
Maybe so, the bump at the bottom makes it kinda look like a clamp.
- Location
- Massachusetts
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Yes the IG terminal had no clamping device to hold the strands together, just the screw. The device also had black tape around it which ensured that the loose strands were nicely contacting the yoke which killed the IG. There were actually a few devices with the same problem.
- Location
- Illinois
- Occupation
- retired electrician
I think there was at least one, but I have an issue with that. The listing standard clearly requires that these devices have terminations that are suitable for use with both solid and stranded conductors, so how can a product that does not comply with the listing standard be a listed product?
The program actually has a second default paragraph that says "8 AWG And larger shall be stranded (except where article 250 requires solid)".
I usually include that paragarph, but it's probably a waste of ink. I don't think any reasonable contractor would try to install #8 solid wire in a conduit. But I guess we've all seen stranger things.
hillbilly1
Senior Member
- Location
- North Georgia mountains
- Occupation
- Owner/electrical contractor
The program actually has a second default paragraph that says "8 AWG And larger shall be stranded (except where article 250 requires solid)".
I usually include that paragarph, but it's probably a waste of ink. I don't think any reasonable contractor would try to install #8 solid wire in a conduit. But I guess we've all seen stranger things.
The place where I could see solid in that size or larger in conduit is the grounding electrode conductor, usually it's a straight run to the bar joists though. (which may be why your refering article 250)
- Location
- New Jersey
- Occupation
- Journeyman Electrician
That's permitted?
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I don't know but if the product is listed and it states no stranded wire then I would be you would have a hard time getting that by inspections. We have a guy from UL coming to our contractors meeting next month and I hope to ask many of these type questions. :thumbsup:
K8MHZ
Senior Member
- Occupation
- Electrician
Telco's do it all the time as an EGC. 2AWG solid bare tinned copper in PVC bonding all the cabinets on the site together.
NO FUN!!!!! Even in 2". Been there, etc.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
And how do they get by 310.3-- 2008, or 310.106(C) in the 2011-- I guess they don't have to follow the nec???
- Location
- Illinois
- Occupation
- retired electrician
The answer I got from UL is that this is another case where 110.3(B) does not apply...the same answer they use to justify "classified" breakers.
K8MHZ
Senior Member
- Occupation
- Electrician
Correct. Check 90.1 (B) (4).
- Location
- New Jersey
- Occupation
- Journeyman Electrician
It seems that way otherwise it's a clear violation.
- Location
- Bremerton, Washington
- Occupation
- Master Electrician
For 14 and 12 stranded wire on devices, I use non insulated fork connectors, and carry a small plastic box in my tool bag. PVC insulated connectors are not so great, the best insulated is nylon, and a controlled cycle compression tool. But the typical T&B WT-111 has the indent for the non insulated terminals and really crimps them well.
- Location
- Tennessee NEC:2017
- Occupation
- Semi-Retired Electrician
About 90% of the machine wiring I used to do had stranded wire and I used the CCW method, it works great. To add to that, sometimes it helps to leave the wire long wrap it around the screw, tighten it, then cut off the excess.
jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
Yep.:thumbsup:
K8MHZ
Senior Member
- Occupation
- Electrician
If you get the right connectors and use the right crimp tool, the copper from the wire and what ever the terminals are made of actually get cold welded together. I don't know who makes the stuff, I learned about it working in a power plant, but the tool is more than 150 dollars and the connectors were a couple bucks each.
- Status