Trunking cover over exposed bathroom light switch cable

[TryAgain1]

A small bathroom has a small section of exposed 1.5mm2 electric cable running from a wall to the lightswitch (pic attached).

I need to conceal this cable either by pushing it back into the plasterboard or fitting surface trunking over it and making a waterproof seal such that no moisture can get to the cable.

What surface trunking should I use

 

[blup]

Deta mini trunking or similar

 

[Harry Bloomfield]

I need to conceal this cable either by pushing it back into the plasterboard or fitting surface trunking over it and making a waterproof seal such that no moisture can get to the cable.

Trunking will not prevent the moisture, and the switch shouldn't be anywhere near moisture anyway. That switch, is a ceiling switch, and they work best, when mounted on the ceiling.

 

[TryAgain1]

Trunking will not prevent the moisture, and the switch shouldn't be anywhere near moisture anyway. That switch, is a ceiling switch, and they work best, when mounted on the ceiling.

There is a small gap between the switch cable hole and the cable itself.