30 amp power cord overheating

MEXICOWANDERER wrote:



This is where I must strongly disagree. If the contacts are discolored, they are annealed. You can shine them until they are like mirrors, but without a tight fit, armageddon is inevitable. Especially if operated near max capacity. You cannot buff resilience back into a spring. Contacts have "wipers" whose actions vanish forever if overheated. Too many times I have seen campers spend hours disassembling and shining contacts only to see disaster arrive a few weeks more. You might get away with shining up a plug if it isn't burned too bad, but not a socket. Once overheated it has had the course.

NOTICE THE WORD "DISCOLORED" It has significant meaning here

Discolored in brass or copper product means annealed or softened, and in a female socket that indeed does mean that it's lost proper gripping tension on the blade, which enhances conductivity. Time for a new socket.