Electrical, electronic and electromechanical apparatus, equipment, installations, systems and instruments for heavy-current and light-current engineering; apparatus, equipment, installations, computer programs and software for actuation, control, regulation, supervision, monitoring, verification and checking of the operating conditions and serviceability of transformers, switchgear, tap changers, selectors, and drives for actuating tap changers; apparatus, equipment and installations for conduction, conversion, transformation, storage, regulation and control in the field of heavy-current applications; apparatus, equipment and installations for use in measuring, computing, calculating, control and regulation in the field of light-current applications; parts and fittings for all the aforesaid goods

Installation, putting into service, maintenance and repair of electrical, electronic and electromechanical apparatus, equipment, installation, systems and instruments for heavy-current and light-current engineering and of apparatus, equipment, installations, systems and instruments used for actuating, driving, switching, regulating, controlling, supervising, monitoring, verifying, checking, measuring, calculating and computing and for current conduction, conversion, transformation and storage

Fastening, locking and anchorage devices of metal in this class, including threaded anchorage devices for use in masonry and other materials