pitted busbar

[Energy-Miser]

Well there not cheap 2.5K + - and some good reading of the devices and people that use them...

You noted taking a piece out, an "L" shaped piece. My question is will these threads that hold that piece still be good and what does one do the deal with that if you have to ? Re-tapping or next size ? What's the manufacture have to say about that?

So it comes down to a loose bolt causing pitting ?
I've heard of bolts desolving between bus panels but not pitting, but I didn't know to ask!

So its just the arcing that causing the pitting > Right ?

Anybody got any pitting pictures? TIA

Yes I guess the arcing is what does the pitting, and the resistnace along with arcing will create the heat and the damage. As far as the L-shape piece, the damage is local to the one end of the piece, the rest of the bus that is attached to this piece is not damaged.

 

[RHJohnson]

How much do one of these run ? ($).

I was lucky. Bought it maybe 15 years ago for $900 I think. I needed it on a job, construction had to pay the rent (part of the start up agreement) - they had to pay for any test equipment that was required to satisfy vendor testing recommendations. GE Rents credited rental payments toward the purchase price. They didn't want it, or have a use for it - but I sure did!