Garage electrics

[Andypease1]

Hi All

Am revamping my garage electrics have installed a 4 way Consumer unit 2 x 6amp mcb ( lighting ) 1 x 16amp ( socket and garage door) 1 x 32amp (ring main 4 sockets and 1 spur.

Propose a 40 amp RCBO in my house consumer unit

Now for the cable no way to bury in the Tarmac drive so will have to put about
75mm down in the gravel strip that rounds around the house. Can use armoured or twin and earth both in plastic conduit . What is the requirement and should the cable be 4mm or 6mm2

Don,t worry wired my whole house then got it inspected. So will get the garage down when finished..

Cheers Andy

 

[Sam Gangee]

Your location is United Kingdom but you've posted your question for experts to answer in the section "Electrics Outside of the UK".