Ok - just bought 6m of cable and 24 plugs. I am quite handy at home... but I can"t get this to work. I guess the cable is supposed to screw into the plug, the screw threads biting the outer black plastic sheathing, the braided metal cover (earth) and finally the white plastic covering to ensure a tight fit on the inner copper wire core. Yes, I have even taken the cable apart to try to understand how it works... no luck.
Save yourself a headache with these. They’re nearly impossible to work with unless you have a second person (with very strong fingers) hold it together.