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I seem to have the same trouble reading as you have answering the question - ie is it safe in the circs where it's only used for the TV and is protected by 5amp fuse? I presume you will say no it is not safe. So, would it be better to extend the cable on the TV and on the digibox (using 2 core...

Thanks for the advice. Yes I know I'm doing a 'bodge' job rather than a proper one of installing new twin sockets off the ring but provided the extension is protected by 5 amp fuse and it's never used for anything other than the TV and digi box is it safe to use 0.75mm twin flex?

I need to get a power supply to a small wall mounted TV and separate digibox that is too far away from plug sockets. I plan to create an extension lead with a 3 pin plug from the nearest socket with 5 amp fuse running the cable under carpets to a new double socket near to the TV. The TV is...

Grateful for the advice, thanks. But just out of interest does anyone know why building regs or whatever would have permitted polystyrene loft insulation to be used in conjunction with PVC cables? And does anyone know whether current regulations still permit it?

Thanks, that's the most helpful advice I've had so far. In fact one electrician said that in 30 years he'd never heard of the problem of poly affecting PVC cables! Any ideas how best I can judge how urgent cable replacement is?

I'm getting mixed views about the safety/risk of the reaction of PVC wiring and polystyrene insulation. Some say no problem, it will take years for the cables to deteriorate to present a risk, others say the cables that are affected should be replaced and kept out of polystyrene. The house was...