I have been asked to review some specifications for a situation that has come up during a refueling outage.
The MG set copper busbar has apparently lost some of the silver plating at the juctions. It has been cleaned and there is apparently no evidence of heating, leading everyone to believe it was vibration that has caused the loss.
Sadly, I have reviewed several specs but have not come across anything relating specifically to the silver plating.
The question is, what role does the silver play at the junctions of the bus, and what are the consequences of not having it?
Does it need to be replaced?
Does anyone know of a specifica reference in any standard (IEEE, ICEA, NEMA etc) relating to this issue?
I'm continuing to look in the plant specs, and will probably be contacting the manufacturer, assuming I can find out who made it, but I would like to have your input.
Thanks.
The MG set copper busbar has apparently lost some of the silver plating at the juctions. It has been cleaned and there is apparently no evidence of heating, leading everyone to believe it was vibration that has caused the loss.
Sadly, I have reviewed several specs but have not come across anything relating specifically to the silver plating.
The question is, what role does the silver play at the junctions of the bus, and what are the consequences of not having it?
Does it need to be replaced?
Does anyone know of a specifica reference in any standard (IEEE, ICEA, NEMA etc) relating to this issue?
I'm continuing to look in the plant specs, and will probably be contacting the manufacturer, assuming I can find out who made it, but I would like to have your input.
Thanks.