Need some help

[Jeffrey M. Cohen]

Came across this today in a electrical panel. It looks like the wires into bus bar have some sort of paste or something over them. Does anyone know what this could be and why.

Oopps, forgot photo, here it is.

[Roy D. Cooke, Sr]

We used to call it no corrode it is used on Aluminum wires to keep the air away from the Wire .

anti-oxidant grease

[Jeffrey R. Pope]

Originally Posted by rcooke

anti-oxidant grease

Yep.

[Marcel R. Cyr]

But why use it on the copper wires?

[Joseph Hagarty, CMI]

Originally Posted by mcyr

But why use it on the copper wires?

I have never seen that in over 10 years

[Jeffrey M. Cohen]

Thanks. I thought it was the no corrode but also dont know why its there on the copper.

[Roy D. Cooke, Sr]

Originally Posted by mcyr

But why use it on the copper wires?

I do not think it was used on the copper it was just a sloppy application on the Alum and it ran down .
No harm if the did use it on the copper not needed but no harm.. Roy

[Russell J. Hensel]

Looks to me some of them are solid strand aluminum, at least from this photo.

[Joseph Hagarty, CMI]

Originally Posted by rhensel

Looks to me some of them are solid strand aluminum, at least from this photo.

Yes
the neutrals appear to be a mix of copper and aluminum...

[KEVIN WOOD]

Correct!

[Joseph M. Whitt]

As a side note the antioxidant is improperly applied. The way it is applied is as though it was never applied as it is to cover the entire conductor that is exposed including that part that is pushed through and extends out the other side.

This would mean that the larger stranded aluminum conductor would require the antioxidant to cover the exposed conductor all the way down to where it enters the sheathing.

[Roy D. Cooke, Sr]

Good catch Mike, yes looking again ,
I think it was applied after the wires installed and it was not done correctly...

[KEVIN WOOD]

Agreed!

[Jim Port]

Since the anti-oxididant is not even required would an HI even right this up?

[Robert Meier]

Originally Posted by Jim Port

Since the anti-oxididant is not even required would an HI even right this up?

I was thinking the same thing.