Terminal Block Destroyed by Loose Connection
This is the power cord connection to an electric range or what is left of it. In most cases this happens because the nuts are not tight causing heat build up by electrical arcing. Over time the arcing and heat build up intensifies melting the insulation and the terminal block. It was repairable and worked fine. After removing damaged wiring and terminal block and cleaning the area a new terminal block and 4 prong power cord was installed.