|
Re: Discolored busbar
I'm guessing it is from heat.
That is an aluminum conductor ... note the color of the terminal set screw - it is darker, as though it has been overheated, now look at the bus bar, the darker triangular area is at the corner where the terminal lug connects to ... I'm guessing that the conductor is not properly torqued in the terminal, making for a loose (poor) connection, causing heating, and overheating.
|