Glossary
There are currently 31 names in this directory beginning with the letter E.
E
Symbol for voltage. Used to represent direct voltage or the effective (root-mean-square) value of an alternating voltage.
Eccentricity
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.
Elastomer
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.
Electromagnetic
Pertaining to the combined electric and magnetic fields associated with movements of electrons through conductors.
Electromagnetic Induction The
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.
Electroplate
The term used to indicate the application of a metallic coating on a surface by means of an electrolytic action.
Emergency Overload
Load which occurs when larger-than-normal currents are carried through a cable or wire over a certain period of time.
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.
Equilay
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.
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.
ETFE
Ethylene tetrafluoroethylene. An alternating copolymer consisting of ethylene and tetrafluoroethylene segments. High impact resistance with useful mechanical properties up to 200°C.
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.
External Interference
The effects of electrical waves or fields which cause sounds other than the desired signal; static.
Extruded Cable
Cable with conductors which are uniformly insulated and formed by applying a homogeneous insulated material in a continuous extrusion process.