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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.

ECTFE - Ethylene chloro - trifluoroethylene (Halar)

EIA - Abbreviation for Electronic Industries Association

Elastomer - Any material that will return to its original dimensions after being stretched or distorted.

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.

Embossing - a 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.