Abstract: A carpet tile floor covering system which comprises a plurality of removable carpet tiles in a floor surface, at least one of which has an electric or electronic function, and which system includes spaced apart parallel conductive strips on the floor surface beneath the carpet tiles, and at least one pair of fixed terminal plugs in the said carpet tile, and an electric or electronic function device, such as an electric connector in said carpet tile, whereby electric voltage from a power supply to provide through the strips and terminal plugs to the electric or electronic device.

Abstract: A wall covering is provided for supplying an electric receiver with power at variable positions on the wall, which covering is in the form of elements such as a carpeting tile with textile wearing layer (10) and an underlying insulating foundation layer (12) under which are fixed two assemblies of conductors in the form of strips (14, 14') of opposite polarities, covered on their lower face with a covering sheet (15), the tile possibly including electric connection means such as projecting ends (16, 16') of the conducting strips, the strips being designed for supplying with two phase power a current sensor having contact needles passing through the wearing layer (10) and the insulating layer (12) so as to come into contact with the conducting strips.