Electrical cables, optical cables, fibre optic cables, terminals (electricity); industrial electricity plants consisting of distribution stations, switching stations and main grids used for the production and distribution of electricity; apparatus and instruments for the production and distribution of electricity for electricity distribution networks; apparatus and instruments for checking (supervision), remote control, controlling and measuring of electricity and energy consumption and for remote controlling of power plants, electric connectors, transformers and/of poles, not of metal, for electric pipes; data processing apparatus and recorded computer programs for use in the production, distribution and control of energy and electricity; solar cells and solar batteries for the generation of electricity and energy; land surveying instruments; detectors and alarm installations for industrial purposes and for use in energy production and distribution; elevator control panels