The black wire on my plug is burnt up...
So after the winter, I pulled up and moved. I was using the 50A socket with the 50-30 adapter. One of my connections was burnt up and the plastic was melted. The flat prong was black. The ...
Forum Discussion
You said you were plugged into a 50amp pedestal and adapted down to a 30amp cord. Common sense tells me the 30amp cord is only capable of safely carrying 30amps. Anytime you approach 30amps, that cord will begin to heat. The heat causes rapid oxidation. The oxidation creates an increased resistance to the flow of current. The increased resistance results in more heat. From that point on it's like a dog chasing its tail. The more heat, the more oxidation, the more oxidation the more resistance and therefore even more and more heat - your plastic plug melts or worse yet catches fire. During all this you've never come close to the 50amp load required to trip the breaker and open the circuit so the process continues until somehow power is interrupted.
You can minimize some of that oxidation by using a di-electric grease" available from Camco at RV supply stores or from Permatex at auto parts stores. I've been using it for years with great results and haven't burned up an plugs - but then I try not to overload them either.
You can minimize some of that oxidation by using a di-electric grease" available from Camco at RV supply stores or from Permatex at auto parts stores. I've been using it for years with great results and haven't burned up an plugs - but then I try not to overload them either.
