Hi everybody Before we bought our house it had a new electrical supply run to it, new meter,interupteur,and incoming main fuse. Fine you say, but the only drawback is they then took feed wires to an ancient ceramic fuseboard which serves the house. My question is, when I want to replace this with a proper fuseboard how do I cut the electrical supply while I do it, is it sufficient just to push the red button on the interupteur ? Thanks for any replies John