Interesting discussion . Recently contacted a remaufacture of electrical equipment I.e. Large circuit breakers , switches and contractors . Had a interesting conversation with them and was enlightened to the fact that contacts are made to "wipe" the contacts to clean them ! They to not just slam against each other. They recommended cycling circuit breakers 10-15 times once a year without the load just to clean the contacts. Leads credence to having to cycle the switches
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