So why should that affect the Electrician doing the fixed wiring.
Not at all for portable equipment, but for fixed equipment, such as USB outlet, ELV transformers etc, the consideration is required for selection of appropriate products for installation in certain locations, and perhaps the derivation of the source of supply per BS 7671.
yes - and the usb outlet would need to be one suitable for bathroom use - but I still think it is safer as it discourages the use of the mains lead to the short cabled plug in charger. you can even get one with a UK style isolated shaver socket.
Someone would need to check with one like this claims isolation to IEC 61558-2-16 but also only IP20 so outside zones please.
