Why are these nuts purple?

[Ben J. Gromicko]

And what are they used for?

[Brian A. MacNeish]

Originally Posted by bgromicko

And what are they used for?
Attachment 24309

Approved for aluminum/copper wire "pigtail" splice for older style receptacles.

[Larry D. Kage]

More info:

http://www.alwirerepair.com/burned_purples.htm
http://www.inspect-ny.com/aluminum/i65debat.htm

[Christopher Currins]

Originally Posted by Brian A. MacNeish

Approved for aluminum/copper wire "pigtail" splice for older style receptacles.

And that's a winner!! I guess you need to contact Ben to see what you win.

[Jae Williams]

Why are these nuts purple?


My bicycle chain broke...

[Christopher Currins]

Originally Posted by lkage

More info:

http://www.alwirerepair.com/burned_purples.htm
http://www.inspect-ny.com/aluminum/i65debat.htm

Thanks Larry, good info.

[Steven C. Waskewicz]

Jae, I'll bet that hurt

[jkogel]

Why are THESE nuts purple and BLACK?

From Larry's links above.

John Kogel
www.allsafehome.ca

[Jeffrey R. Pope]

Ben,

Where did you get the information that these are "approved" splicing methods?

They are UL Listed for connecting CU and AL, but should not be suggested (by an HI) as a permanent repair method for the older AL wiring of the 70's.

[Michael Larson]

NEWS from CPSC

The COPALUM crimp connector, which has been available for more than 20 years, is the only system recognized by CPSC that provides a complete and permanent repair and reduces the fire hazard in aluminum wire circuits. The COPALUM connector system attaches a copper wire to the old aluminum wires and is then crimped together with a power tool, achieving a "cold weld" between the conductors. The "cold weld" creates a permanent bond that eliminates electrical arcing or glowing connections and creates a safer electrical connection at outlets, switches, lights, circuit breakers, and panelboard terminals. The COPALUM connector repair materials and power crimping tools are only available to electricians who receive training from the manufacturer, to ensure that repairs are properly made.

CPSC #516 (PDF)

[Mike Whitt]

Why are they pruple?
They ran out of pink paint!

[Dale Duffy]

Originally Posted by jpope

Ben,

Where did you get the information that these are "approved" splicing methods?

They are UL Listed for connecting CU and AL, but should not be suggested (by an HI) as a permanent repair method for the older AL wiring of the 70's.

I would NEVER use those wire nuts. I have a picture of one in a house I flipped when I was upgrading everything to CU, I'll try and find it, was burnt like the photo's posted here.

[Mike Whitt]

Originally Posted by bgromicko

And what are they used for?
Attachment 24309

Where did you get your information about these things being good for anything?

[David P. Valley]

PURPLE NUTS?

I say no more.

[Ben J. Gromicko]

Originally Posted by Mike Whitt

Where did you get your information about these things being good for anything?

http://www.nachi.tv/episode53
Our guest electrician uses them.
And he then demonstrates how aluminum and copper can be improperly connected.