Not pretending to understand the finer workings of the current regs etc, can I take it that I can indeed run behind the hollow skirting if the sockets are installed in the skirting itself?
http://www.niceic.org.uk/downloads/concealedcables.pdf http://www.iee.org/Publish/WireRegs/WiringMatters/Documents/Issue14/2004_14_spring_wiring_matters_cables_concealed_in_thin_walls_orpartitions.pdf