Prysmian 6242Y Grey 1mm² Twin & Earth Cable 10m Coil (42776)

Flat cable like this is mainly used for fixed wiring in houses in the UK for sockets and lighting. It is usually buried in plaster or inside stud walls. Sometimes it is surface mounted and usually then in trunking. For power circuits it is usually 2.5mm² unless separately fused. It must terminate in a fixed socket on or in a wall. I would say this cable it is unsuitable for the purpose proposed. I would certainly not recommend running under the carpet edge; it would be better around the skirting in conduit or trunking. But please seek advice from a qualified electrician particularly with regards to fusing. Have you considered a standard proprietary flexible extension lead?

This type of flat cable is used for 'sockets'. The standard circuits in the wiring regulations use 2.5mm² or 1.5mm², 1.0mm² is not shown. If you are using less than 2.5mm² then separate fusing is required. Please refer to a qualified electrician if in doubt.