nothing huge to add – shower at work tomorrow and get a spark.
Normally i am not one of those who say get a spark but your first post scares the shit out of me- – also looking at the switch its not rocket science but based on
“
The wires are older black and red ones and neutral.”
Thats why your getting **** up – this is not what you have – live neutral and earth from load and supply is what i see both hanging out the roof and on the switch. How ever as above which is which is another matter i wouldn’t blindly connect anything up as per what it “should be” without checking continuity with the meter which cable is going which way.
As above potential for fire is strong in this one.
rewired my house after finding hte previous owner was a have a go hero.
numerous faults – including lighting circuits with twisted pair flex and insulating tape – the whole garage wired up to a 6amp lighting circuit spur and the wrong fuse wire in rated fuses on the board.
Most scary was this – which i found when i pulled the shower apart- its a 9.5KW shower – it had big cable down to the switch then from the switch to the shower regular socket cable plastered into the wall behind the tiles. It has begun to burn back – either from poor terminal in the shower block or simply from being undersized. I only investigated when the shower started tripping out on us shortly after we moved in.