Exposed wire on shower isolator switch

[Scientist]

Hi,
I have just replaced an old isolator switch on our shower and have discovered after wiring that the old live wire is a little exposed through the cable shield (presumably where it has been snagged in the ceiling at some point - see photo). I'm a little concerned that this could be a potential fire hazard once I push the cabling back up into the ceiling so was looking for advice. Could I simply wrap the exposed bit of wire in insulating tape or would this be inadequate? Thanks for your help! Rob.

 

[Andy78]

You shouldn't be pushing the basic insulation though the enclosure. Yes that needs repairing. If there is enough length you could crop the conductor at the damaged point and re terminate. That would address the issue of the exposed copper at the terminals too.