I have done my weekend house's electricity system in the first indoor technology from the filrs electrifies.. Here is the supply point.. when I will have more money, here will be a fuse box. The Insulators are from plastic, I ordered 400 pieces from a turner from a porcelain spool mint, the wires are from 1.5 mm2 (square-milli-metres) copper: black: hot wire (phase), blue: null wire and the yellow-green: earth protector