Condensers [capacitors]; conductors, electric; circuit closers; connectors [electricity]; junction boxes [electricity]; regulating apparatus, electric; converters, electric; switches, electric; limiters [electricity]; cell switches [electricity]; circuit breakers; control panels [electricity]; relays, electric; inverters [electricity]; armatures [electricity]; resistances, electric; integrated circuits; current rectifiers; couplings, electric; distribution boards [electricity]; distribution consoles [electricity]; sensors; voltage regulators; step-up transformers; electric converters; power controllers; automatic solar tracking sensors; solar wafers; electronic sensors for measuring solar radiation; photomultiplier tubes; photoelectric sensors; photovoltaic inverters; electric installations for the remote control of industrial operations; electric apparatus for commutation; batteries, electric; accumulators, electric; chargers for electric batteries; photovoltaic cells; electrical connectors; solar batteries; solar panels for the production of electricity; photovoltaic apparatus and installations for the production of solar electricity; power station for automation equipment; electrical control assemblies for energy management; computer programs, recorded; computer software, recorded; computer programs [downloadable software]; computer hardware; measuring apparatus; measuring instruments; cables, electric; wires, electric; materials for electricity mains [wires, cables]; transformers [electricity]; distribution boxes [electricity]; commutators.

Electric appliance installation and repair; machinery installation, maintenance and repair; repair or maintenance of power generators; power and energy generating equipment installation; repair of power lines; interference suppression in electrical apparatus.