Hi, I have a question about the above wiring. We have taken the so ket and box out whilst painting, and will be replacing them with new ones. As you can see in the photo, there is 2 sets of wires, one with new style brown and blue wires and one with the old red and black. When I rewire the socket, do I need to attach both sets of wires to the socket like was previously done, or can I tape off the old one and hide it in the wall?
Any advice appreciated.