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Home > Reference Data

A B C D E F G H I J K L M N O P Q R S T U V W X

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-like substance.

Electromagnetic. Pertaining to the combined electric and magnetic fields associated with movements of electrons through conductors.

Electromotive Force (e.m.f.). Pressure or voltage. The force which causes current to flow in a circuit.

Electrostatic. Pertaining to static electricity or electricity at rest. A constant intensity electric charge.

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

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

EMI. Abbreviation for 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.

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

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

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

ETFE. Ethylene tetrafluoroethylene (Teflon).

ETPC. Abbreviation for 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).

Extrusion. The process of continuously forcing both a plastic or elastomer and a conductor core through a die, thereby applying a continuous coating of insulation or jacket to the core or conductor.


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