Issue:
QED type switchboards with bussing that is copper with no Silver / Tin plating availability
Product Line:
QED SWBD
Environment:
Application
Cause:
Specification requirement
Resolution:
Bussing is not available without plating. Copper oxidizes and the oxides do not stay on the copper well. When they come off there is more copper exposed, which in turn oxidizes, and so-on. Also the oxides do not conduct well. This causes poor electrical contact, which then gets hot and increases the oxidation rate. The oxides, because of their poor conductivity, also cause arcing at the electrical contacts, eroding the copper. oxidizes and the oxides do not stay on the copper well.
Released for: Schneider Electric Canada
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