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Symbol for voltage. Used to represent direct voltage or the effective (root-mean-square) value of an alternating voltage.


Electrical Conductor (electrical grade aluminum - now known as Alloy 1350).


Like concentricity, a measure of the center of a conductor’s location with respect to the circular cross-section of the insulation. Expressed as a percentage of displacement of one circle within the other.

Eddy Current

Circulating currents induced in conducting materials by varying magnetic fields.


Electronic Funds Transfer System


Electronic Industries Association


A rubber or rubber-like material which will stretch repeatedly to 200 percent or more and return rapidly and with force to its approximate original shape.


A conductor through which a current enters or leaves a nonmetallic conductor.


Magnetism caused by the flow of an electric current.

Electromagnetic Coupling

Energy transfer by means of a varying magnetic field.

Electromagnetic Field

A rapidly moving electric field and its associated moving magnetic field.

Electromagnetic Induction

The production of a voltage in a coil due to a change in the number of magnetic lines of force (flux linkages) passing through the coil..

Electromotive Force (e.m.f.)

Pressure or voltage. The force which causes current to flow in a circuit.

Electronic Wire and Cable

A length of conductive or semiconductive material used in an electronic application.


The term used to indicate the application of a metallic coating on a surface by means of an electrolytic action.


Electrolytes process of tinning wire using pure tin.


The fractional increase in the length of a material stressed in tension.


Marker identification by means of thermal indentation leaving raised lettering on the sheath material of cable.

Emergency Overload

Load which occurs when larger-than-normal currents are carried through a cable or wire over a certain period of time.


ElectroMagnetic Interference

Enameled Wire

A conductor with a baked-on enamel film insulation. In addition to magnet wire, enameled insulation is used on thermocouple-type wires and other wires.


In braiding, the number of essentially parallel wires or threads on a carrier.


To apply rated voltage to a circuit or device in order to activate it.


Ethylene-Propylene-Diene Monomer rubber


Ethylene-Propylene Rubber.


More than one layer of helically-laid wires with the direction of lay reversed for successive layers, but with the length of lay the same for each layer.


Australian approval agency; Electricity Trust of South Australia.

Etched Wire

A process applied to fluoroplastic wire in which the wire is passed through a sodium bath to create a rough surface to allow epoxy resin to bond the fluoroplastic.

Ethylene Copolymers (Non-Halogen)

An insulation material that combines attributes of polyethylene and polypropylene to provide a high level of flame resistance and low smoke production.


Electrolytic Tough Pitch C­opper. It has a minimum conductivity of 99.9%.

External Interference

The effects of electrical waves or fields which cause sounds other than the desired signal; static.

External Wiring

Electronic wiring which interconnects subsystems within the system.

Extruded Cable

Cable with conductors which are uniformly insulated and formed by applying a homogeneous insulated material in a continuous extrusion process.


Method of continuously forcing plastic, rubber or elastomer material through an orifice to apply insulation or jacketing over a conductor or cable core.


A type of SER cable with two insulated conductors and one stranded bare conductor twisted together under a PVC jacket.

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