shower cable

I have a Mira 8.5kw (@ 240v) shower that has broken. I want to replace it ideally with a matching powered unit, however I am unsure about the current wire. It appears to be 6mm² (although isn't labelled), and runs approx 10m total to the consumer unit (7m under floorboards, no insulation, and a...

I have removed the 10.5kw electric shower from my bathroom as we have moved to theromastic shower supplied by the combi and terminated the wire I would like to repurpose the cable for a simple LED Cabinet we are putting on the wall which needs power I have terminated the 10mm cable (which is...