Tin Plated Copper Bus Bar Vs Copper Bus Bar

I m connecting al 1100 bus bar to a mod by copper silver plated flexi link.

Tin plated copper bus bar vs copper bus bar.

Must aluminum bus bar be copper or silver plated. We have the capabilities and expertise to plate aluminum bus bar with tin nickel or silver. Sir why do we need tin plated copper bar to be used in 6 9 kv busbar interconnection. When using silver to plate copper bus bars a minimum of 3 microns should be used and preferable 6 microns.

A discussion started in 2005 but continuing through 2020. Thanks and regards roy l. Abu dhabi uae. My question is what is special with tin coating for copper bar.

Below our bus bar manufacturers explain common misconceptions and differences in aluminum bus bar vs copper. Hence the flashed bars can reach higher temperatures without degrading and losing their conductivity. Silver should be used for moving bus bar parts in which arcing may be a concern. Tin plating at bus bar joints solves oxidation issues.

Aluminum bus bar vs copper recent innovations in value add bus bar services as well as supplemental alloy combinations over purity has produced a noticeable shift with demand moving back toward aluminum bus bar. Aluminum bus bar vs copper. However bare copper bar begins to oxidize at higher temperatures and copper oxide has poor electrical conductivity. Very rigid high power connections.

In most fixed bus bar applications tin is recommended. Resistivity in copper bars i s very low 25 in 2 bar 1 foot long is only 0 0000329 ohms roughly 8 watts lost at 500 amps. On top of that an anti tarnish would need to be applied as well to protect the finish. Where to use tinned coated copper bus bars.

The flexi link is bolted on both ends. The welders are saying al cannot be bolted to flexi link because it is copper and so the al should be silver plated or we will have corrosion. Why must copper bus bar be tin plated.