hi can someone advise me. i am in france,fitting a new bathroom. i had hoped to fit an electic shower. i am not sure what 6mm sq means? right now there is 1.5 mm two core and earth, tho seperate wires. not in a sheath like uk 2core and earth. so whats the biggest shower if any i can connect to that. getting bigger wire from the consumer unit in the celler will i am sure be a bloody nightmare, everything else has.i will have to find out what else opperates on this permanent live then i can change the fuse for a higher rating? there is no way i will be able to get cooker type wire up there,of that i am sure. i had only planed the shower to avoid turning on the oil fueled boiler. had i better forget the idea??? please advise soonest as shower ready to fit and existing wires already in wall at shower/pipe point. thanks. mail to