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thanks for the reply

morning nick thanks for the reply i only saw the surge protection in the garage of my friend who has an ev and when i looked online any of the EV type boxes had them in there- so just assumed it would be there. ive seen the integrated ev ultra swa 16 in cat5 and cat 5e but cant see much in a cat 6 version- i assume there is some induction issues if running them as separate cable type for a 6 but together on the wire i was going the route of box profile on roof and walls batten to the block.....either way the roof will be box profile cheers

just looking for guidance, was thinking of getting power to my garage and futureproofing for EV car if i ever go that way it would have a radial set of sockets 5 doubles i think, lights and the space in the box for EV set up surge protector and RCD i might run an air compressor - maybe a welder at times i wondered if catenary wire set up is ok instead of underground and if 16mm 3 core with cat5 is the right size or too big? probably 30m run from CU to unit in garage no water in the garage atm but i might go that route was going to just use the earth to the house extended to garage and not add a TT rod set up the house is on an old board 1975 which i will change- plug in fuse with wires the earth set up appears TN C S as there is not earth band to the incoming supply 100amp fuse simple single skin block garage TIA