"Prof Wonmug" wrote in message
...
We have a very old appliance that has an electrical cord with no
strain relief. The cord comes out of a square hole in the back. I have
replaced the original cord with one that it more heavy-duty, but it
still eventually shorts out. I'm going to go get a piece of stiff
tubing about 1" long that will fit into the hole and run the cord
through that. Is there a better idea?

PW What I use is a coiled spring slide over cord and then twisted into the
opening. The spring is the compression type. This allows the cord to bend in
a larger radius sort of like the cords on a clothes iron. WW