B+ motorhomes

Molded plugs of all sizes, I have discovered are pretty bad. I have an electric high pressure washer that I ran for about four hours on Saturday. When I finished I discovered that the plug was partially melted and distorted even though the cord itself was cool as a cucumber the whole time. For a time I had it plugged into an extension cord and discovered that the receptacle end of the extension cord was also hot though not melted. Burlmart's lesson learned is a good one for all of us. Even though I'm an engineer (civil) I tend to forget some of this electrical stuff. Thanks, Artum, for the great explanation.