At the interior electrical box, join one other end of your bare copper wire to The 2 bare copper wires sticking out on the electrical box. To attach them, spot the finishes with each other, twist and afterwards screw on the wire nut. Your consumer unit must have a construction https://fuse-box-replacement-near58642.ivasdesign.com/56729883/the-greatest-guide-to-garden-power-installation-uk