[wigginsn]

I have used a copper version of Noalox for 5 or so years now. I had to lift some track to make some changes a few months ago so I took some photos.


Below is what the joiners looked like on removal, you can see where the brass has oxidised externally, and where the contact points are inside the clamps.

And a close up after removing the joint compound with solvent. I wanted to see how well the oxidation was reduced. Good results.

I run 300' of brass with a single feeder, no conductivity issues with proper precautions at rail joins that have been set out above by others.

Cheers
Neil

 

[wigginsn]

Greg,

I just checked some dates, those particular clamps have been in service a touch under 3 years. I can't help with a part number - its not Noalox brand, I used that so you guys Stateside would have a frame of reference. Apologies if its thrown you off.

I use "EP Joint Seal" used in compression joints for electrical transmission applications. There's a squeeze bottle supplied in each kit. Its specified for Cu but its also used for bolted tinned Cu / gunmetal connections.

As far as I know its only available through the trade counter at electrical wholesalers, at least in NZ. Here is a link to the stuff I use - there must be a version of this over your way (unless you guys have figured out microwave power transmission?

).


Electropar

Cheers
Neil