I want to make a short extension cord connection from my dryer to plug in and have a female connection like in wall, but with a short foot or two cable extension like wire cord used for connecting the dryer directly into the wall and another wire come out with a different connector to it running into house wall jack so can plug my amp and dryer at same time into same outlet for dryer but not run at same time. And add a 20 amp inline fuse or something on each side for wire new extension cord that is going connect to the amp, also need to know what gauge wire for an extension cord I will need running 100' or less to hold 240 volts to 250 volts at 20amps min. And run it like an extension cord and look like and extension cord as well and be portable.