I have an electric blanket where the insulation has escaped from its clamp.
Totally easy fix, as long as you can get into the fitting. But there are no screws or anything. There are three recessed holes that look like some kind of melted plastic rivet or mushroom.
How can I open this fitting to re-place the power cable without damaging it ?
My plan is to drill it out a bit at a time. When closing it I would drill a small short pilot hole and use a short self-tapping screw into the plastic, and then fill the recess with something to prevent skin/metal contact. Does that seem sufficient?
Best Answer
The fitting is press fit together, and then the melted plastic holds the unit together. DON'T use any metal screws. What has happened is your wire has come loose from the strain relief. If you did anything - attach a strain relief to the backing, push your wire back into the connecting box. Then tie wrap your wires to the strain relief that you attached.
The image below shows only the self adhesive strain relief attached to your cable connector. So insert your cable back into your connector and tie the cable to the strain relief with a wire tie.
If you pull the unit apart you might have more issues (with looseness etc.) you could do it your way and pull it apart and maybe wire tie the unit together. My advice is to get a new blanket as these things can be dangerous when they fail.