Discuss Electrical wire for electric shower in the UK Electrical Forum area at ElectriciansForums.net
Standard 240v is irrelevant. Power not voltage requiredCable would be about 8m in total
The power shower - standard 240V
The cable would run in the void under the floor
I have no idea about other things you mentioned
Awesome. Thank you. I get the wire sorted in advance.For all the cost difference now versus having to replace later, put in 10mm cable and have a decent amount of slack at each end.
Somewhere along its route you will need an isolation switch so the shower can be switched off for any maintenance or if faulty, etc. Traditionally that was an adequately rated roof-mounted pull switch (e.g. Crabtree 50A type) but you can have a more conventional switch elsewhere so long as it is suitable for the environment as well as adequately rated.
For now just get the cable in and let any future spark worry about that aspect, but if you are planning building/decorating work then sorting out an expected switch position, etc, early on can save a bit of hassle.
Post #10 is great advice. You don't want to end up getting an electrician in to fit the shower in the future and him refusing to install it/sign it off because the cable routing doesn't meet regs.
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