I am currently re-furbishing my kitchen and trying to bring the electrics in line with the regs. On one wall there is a double socket spurred from a cooker switch. A double oven was previously re-position on the opposite side of the kitchen and the cable clipped to the base units all the way round, ending in a JB for attachment to the oven unit itself. I have moved the cooker switch to be adjacent to the oven housing (outside) with buried conduit into the oven housing (cable round the kitchen now in trunking attached to the wall), with the intention of wiring the oven unit directly into the switch. Where the original cooker switch was a I have used a heavy duty chock block for connecting the cooker cable through, and put a blanking plate on the box. On the other end of the same wall there us a double socket. I was intending to spur off this socket to provide an under worktop socket for the washing machine (which was originally also supplied from the cooker circuit), however, much to my surprise I found THREE cables, all coming down the wall. Where the third cable goes to I have no idea as there are no other spurred outlets in the vicinity. Advice please..