An electrode, which is the conductive part, that can be embedded in a specific conductive medium, e.g. concrete or coke, in electric contact with the Earth.

A detector intended to detect a leakage current to earth.

An electrode that is an earth electrode consisting of a metal plate buried in the ground.

An electrical conductor that is used to connect the earthing system to structure.

A resistance through which the neutral pint of a supply system is earthed, in order to limit the current that flows on the occurrence of an earth fault.

A control valve that uses a rotating disc as closing element, and with a design that causes the disc to take a slightly eccentric path during actuation.

A valve that has a closing member which is an eccentric rotating disc.

A form of suction pump; a device using a high pressure jet of water to create partial vacuum at an intake opening to draw liquid from a sump.

An actuator that produces a specified movement when excited by an electric signal.

An electric accumulator that comprises one or more cells fitted with devices necessary for use, for example case, terminals, marking and protective devices.

An energy transducer that transforms non-electric energy into electric energy.

A heater in which electric energy is converted into heat for useful purposes.

An electric machine for transforming electric energy into mechanical energy.

An electrically controlled piping system that is situated within the frame and distributes purge gas inside the frame.

A connector for holding two parts of a conductor in intimate contact.

A 'control panel' intended for electrical apparatus.

An electrical conductor that has several power distribution points.

An equipment class that contains classes of artefacts which is electrical equipment.

An isolator that isolates electrical conductors.

A starter in which the force for closing the main contacts is provided exclusively by electrical energy.

A physical object that provides reactance in a circuit.

An electrical connector in which the terminals of an electricity supply are inside holes made to receive the pins of a plug.

A switch that turns electrical current on and/or off.

An element located in a flowstream measuring the flow using electro-magnetic forces.

A flow transmitter that is specially designed to convert the signals from an electromagnetic flow meter into a standardized electrical output signal.