Alternating current power apparatus; alternating current power installations; alternator rectifiers; ammeters; apparatus and instruments for controlling electricity, accumulating electricity, connecting electrics, controlling the operation of machines (electric), electricity distribution, electricity supply, heavy current electrical engineering, monitoring electrical instruments, monitoring the operations of engines, electrical safety protection, use in the protection of power lines, alarm management, testing electrical instrument, measuring temperature (other than for medical purposes); apparatus for use in testing electrical cables; automatic control apparatus; application software; battery chargers; cable management installations for power transmission; components for over-voltage protection for electrical apparatus; computer apparatus for use with computer networks; computer based control apparatus for machines; computer installations for the control of machine tools; computer monitoring instruments; control panels (electricity); current shunts; computer networking installations; computer software for use in controlling machines; devices for measuring electric quantities; digital control apparatus for power units; digital controls for machine tools; digital electronic controls for tools; digital measuring instruments; digital regulating apparatus; digital testers for use in testing electric voltage; electric transformers; earth leakage circuit protection apparatus; electric devices for use in the protection of generators; electronic apparatus for measuring environmental conditions; electric time-relay devices; electronic programmable logic controllers; electric devices for use in the protection of motors; electric protective relays; electric control apparatus for motors; electric apparatus and instruments; electric apparatus for controlling the operations of machines; electrical apparatus for controlling machines; electric devices for use in the protection of transformers; electric circuit breakers; electric measuring instruments; electrical apparatus for monitoring; electrical connection insulation apparatus; frequency meters; insulation resistance meters; industrial computer software programs; instruments for temperature control; indicators (electricity); industrial control apparatus (electric); instruments (electric and electronic) for the control of machines; industrial computer software programs; meters for measuring values of electrical parameters; motor protection relays; multimeters with a digital read out; multimeters with an analogue read out; marine navigation apparatus; power line phase meters; potentiometers; power generation monitoring apparatus; power analysers; power system meters; regulating apparatus, electric; solid-state relays; starters for electric motors; transducers; temperature sensors for industrial use; temperature monitors for industrial use; temperature controlling instruments; voltage meters; warning apparatus (other than for vehicles); wireless instruments; wireless transmission apparatus for remote control; all included in class 9