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Glossary/Dictionary

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Term Description
A.C. Resistance The total resistance offered by a device in an alternating current circuit due to inductive and capacitive effects, as well as the direct current resistance
Abrasion resistance Ability of a wire, cable or material to resist surface wear
Accelerated Aging A test in which voltage, temperature, etc, are increased above normal operating values to obtain observable deterioration in a relatively short period of time. The plotted results give expected service life under normal conditions.
Accelerated Life Test A test in which certain factors such as voltage, temperature, etc., to which a cable is subjected are increased in magnitude above normal operating values to obtain observable deterioration in a reasonable period of time
Accelerator A chemical additive which hastens a chemical reaction under specific conditions
Activator A chemical additive used to initiate the chemical reaction in a specific chemical mixture
Active Current In an alternating current, a component in phase with the voltage; the working component as distinguished from the idle or wattless component
Active Pressure In an A.C. circuit, the pressure which produces a current, as distinguished from the voltage impressed upon the circuit
Adhesion The state in which two surfaces are held together by interfacial forces which may be chemical or mechanical in nature
Admittance The measure of the ease with which an alternating current flows in a circuit. The reciprocal of impedance.
Aerial Cable A cable suspended in the air on a pole or other overhead structure
Aging The irreversible change in properties or appearance of a material with time and under specific conditions (usually accelerated representations of environmental states, such as high temperature, oxygen or other various conditions or media.)
Air Core Cable A telephone cable in which the interstices in the cable core are not filled with a moisture barrier
Air Spaced Coaxial Cable One in which air is the essential dielectric material. A spirally wound synthetic filament or spacer may be used to center the conductor.
Alloy A metal formed by combining two or more different metals to obtain desirable properties
Alpeth An aerial telephone cable having an aluminum shield
ALS A type of cable consisting of insulated conductors enclosed in a continuous closely fitting aluminum tube
Alternating Current (AC) Electric current that continually reverses its direction. It is expressed in hertz or Hz (cycles per second).
Alternating Voltage The voltage developed across a resistance or impedance through which alternating current is flowing
Ambient Temperature Any all-encompassing temperature within a given area
Ampacity The maximum current an insulated wire or cable can safely carry without exceeding either the insulation or jacket material limitations. (Same as Current Carrying Capacity.)
Ampere The unit of current. One ampere is the current flowing through one ohm of resistance at one volt potential.
AnnealRelief of mechanical stress through heat and gradual cooling. Annealing copper renders it less brittle.
AnodeThe electrode through which a direct current enters the liquid, gas or other discrete part of an electrical circuit; the positively charged pole of an electrochemical cell.
ANSIAmerican National Standards Institute
Anti-OxidantA substance that prevents or slows down oxygen decomposition (oxidation) of a material exposed to air
Anti-OxonantA substance which prevents or slows down material degradation due to ozone reaction
Arc Over VoltageThe minimum voltage required to create an arc between electrodes separated by a gas or liquid insulation under specified conditions
Arc ResistanceThe degree to which a material opposes the formation of a conductive path
Arc.!) A luminous glow formed by the flow of electric current through ionized air, gas or vapor between separated electrodes or contacts. 2) A portion of the circumference of a circle.
Area of conductorThe sized of a conductor cross section measured in circular mils, square inches, etc.
ArmorA braid or wrapping of metal, usually steel, used for mechanizal protection. Generally placed over the outer sheath.
Armored CableA cable having a metallic covering for protection against mechanical injury
ASAThe American Standards Association. Former name of ANSI.
ASMEThe American Society of Mechanical Engineers
ASPA filled direct burial telephone cable used in areas subject to rodent attack. It consists of a filled cable core, corrugated aluminum shield, corrugated steel tape, flooding compound and polyethylene jacket.
ASTMThe American Society for Testing and Materials
AttenuationPower loss in an electrical system. In cables, generally expressed in dB per unit length, usually 100 ft.
Audio FrequencyThe range of frequencies audible to the human ear. Usually 20-20,000 Hz.
AWGAbbreviation for American Wire Gauge
AWMDesignation for appliance wiring material