Does a 30 mA RCD protect the garage supply, either in the garage or in the house? yes in the house cpc 4.mm, live 4.0 mm, fuse 30Amps is written in cu in house
What size MCB protects the socket circuit? (and the lighting circuit, for good measure) plugs cpc 1.5mm,live 2.5mm and fuse 15Amps...