Size Guide

*GLOSSARY OF TERMS*	*DESCRIPTION*
A	Ampere
AC	Alternating Current
*ABRASION*	Ability of a Wire or Cable to resist surface wear.
*RESISTANCE*
*ALLOY*	A Combination of two or more different polymers or metal. Usually combined to make use of different properties of each polymer or metal.
*ACCELERATED*	A test that simulates long time environmental condition in a relatively short time.
*AMBIENT*	Condition existing at a test or operating location prior to to energizing equipment’s.
*ALTERNATING*	Electric Current that alternates or reverses polarity continuously. The numbers
*CURRENT[A.C.]*	Of alternations per seconds are called as "Cycles" [Hertz or Hz.]
*AMPERE*	A standard unit of current and is defined as the amount of current that flows when one volt of elf is applied across one ohm of resistance. An Ampere of current is produced by one coulomb of charge passing a point in one second.
*ANNEAL*	To soften and relieve strains in any solid material such as metal by heating to just below its melting point and then slowly cooling it. Annealing generally lowers the tensile strength of the material, while improving its elongation and flexibility.
*BENDING RADIUS*	Radius of curvature that a cable can bend without any adverse effect.
*BREAKDOWN*	The Voltage at which the insulation between two conductor or one conductor &
*VOLTAGE*	the earth will fail and allow the electricity to conduct energy from one point to another.
*BUNCH STRAND*	Conductors twisted together with same lay and direction.
*CAPACITIVE*	The opposition of alternating current due to capacitance of a capacitor or cable. It
*REACTANCE*	Is measured in Ohms.
*CAPACITANCE*	The ability of dielectric or insulation material between the conductors to store energy when a difference of potential exists between conductors. The unit of capacitance is Farads. Cable Capacitance is usually measured in Pico farads [pF] per MT.
*COLOR CODE*	A system of different colors used to identify the components of cables such as conductor or group of conductors.
*CONCENTRIC*	A group of uninsulated wired twisted together and containing a center core with
*STRANDING*	the subsequent layers spirally wrapped around the core with alternating lay direction to form a single conductor.
*CONDUCTIVITY*	The ability of a material to allow electrons to flow, measured by current per unit of voltage applied. It is the reciprocal of resistivity.
*CONDUIT*	A tube of metal or Plastic through which wire or cable can be run, used to protect

*CONDUCTOR*	A Substance, usually metal Copper or Aluminum, used to transfer electrical energy from point to point.
*CORD*	A very flexible insulated Cable.
*CURRENT LOOP*	A two wire transmit/receive interface.
*D C*	Direct Current.
*DIRECT CURRENT*	Electric Current that flows in one direction only.
*DIELECTRIC*	An Insulating [none conducting] medium when used in signal carrying design.
*DIELECTRIC LOSS*	The Power dissipation in a dielectric as the result of friction produced by molecular motion when an alternating field is applied.
*DIELECTRIC*	The voltage which an insulation can withstand before it break down.
*STRENGTH*
*DIELECTRIC*	A number which indicates the quality of a material to resist holding an electrical charge when placed between two conductors. It is based on a vacuum, which has dielectric constant of 1.
*CONSTANT*	Motion when an alternating field is applied.
*ELECTROSTATIC*	Pertaining to static electricity, or electricity at rest.
*EMF*	Electromotive Force [Voltage]
*ENERGY*	The Capacity of doing work.
*ENERGY*	Loss of energy from a system due to conversion of work energy into undesirable
*DISSIPATION*	Form usually heat. Dissipation of Electric Energy occurs when current flows through a resistance.
*ELONGATION*	The increase in length of a wire or cable caused by longitudinal tension.
*FARADS*	A unit of capacity that will store one coulomb of electrical charge when one volt of electrical pressure is applied.
*FERROUS*	Composed of and/or contain iron. A ferrous metal exhibits magnetic characteristics.
*FLAME RESISTANCE*	The ability of a material not to fuel a flame once the source of heat is removed.
*FLEXIBILITY :*	The ability of a cable to bend in a short radius.
*FRLS*	Flame Retardant Low Smoke.
*FREQUENCY*	The number of times a periodic actions occurs in one second.
*GROUND*	An electrical connection between the circuit and earth.
I	Symbol used to designate current.

*IMPEDANCE*	The total opposition that a circuit offers to flow the alternating current or any other varying current at a particular frequency.
*INDUCTANCE*	The property of a wire which store electrical current in a magnetic field around the wire. It is measured in Henrys.
*INSULATION*	A material having good dielectric properties which is used to separate the conductor from surroundings.
*IR DROP*	The designation of voltage drop in term of current and resistance.
*LAY*	The length measured along the axis of wire required for a single strand to make one complete turn about the axis of conductor or cable. In a twisted pair cable,the lay length is the distance it takes for two wires to completely twist around each other.
*LAY DIRECTION*	The direction of progressive spiral twist in a cable while looking along the axis of the cable away from the observer. The lay direction can be left or right.
*LEAKAGE*	The undesirable passage of current over the surface of or through an insulator.
*KILO*	One Thousand [ 10 ³]
KV	Kilo Volts [1000 Volts.]
*KVA*	Kilo Volt Ampere.
KW	Kilo Watt.
mA	Milli Ampere.
*MEGA*	Prefix Meaning Million.
*MHO*	Unit of Conductance equal to reciprocal of unit of resistance [Ohm].
*MICRO*	Prefix meaning of One - millionth [ 10 ^-6 ]
*MICRON*	Millionth of a Meter.
*MIL*	A unit of length equal to one thousand of an Inch.
*MILLI*	Prefix meaning One-thousandth [ 10 ^-3 ].
mV	Milli Volt.
mW	Milli Watt.
*NANO*	One Billionth.
*NOISE*	In a Cable or circuit, any extraneous signal which tends to interfere with the signal normally present in or passing through the system.
*PEAK*	The maximum instantaneous value of a varying current or voltage.

*POWER*	The amount of work per unit of time. It is expressed in Watts.
*POWER LOSS*	The difference between the total power delivered to a circuit or cable and power delivered by the circuit or cable.
*RATED*	The maximum temperature at which an electric component can operate for
*TEMPERATURE*	Extended period without loss of its basic properties.
*RATED VOLTAGE*	The maximum voltage at which an electric component can operate for extended period without undue deration or safety hazards.
*REACTANCE*	A measure of combined effect of capacitance and inductance on an alternating current. The amount of such opposition varies with the frequency of current.
*RESISTANCE [DC]*	The opposition offered by a material to flow of current. It is expressed in Ohms.
*RESISTANCE [AC]*	The total opposition that a circuit offers to the flow of alternating current. It is the total effect of resistance, Inductance & Capacitance. It is expressed in Ohms.
*RMS*	Root Mean Square.
*PVC*	Poly Vinyl Chloride.
*STRAND*	A Single Uninsulated Wire.
*STRANDED*	A Conductor composed of groups of uninsulated wires.
*CONDUCTOR*
*SHEATH*	Pertaining to Twisted Insulated Conductors, the outer protection covering.
*THERMAL RATING*	The Temperature in which a material will perform its function without undue degradation.
*TENSILE* *STRENGTH*	The pull stress required to break a bare wire or insulation.
*TRANSMISSION LINE*	An arrangement of two or more conductors used to transfer signal energy from one location to another.
V	Volts.
*VOLTAGE*	Electrical Potential or electromotive force expressed in volts.
*VOLTAGE DROP*	A Voltage loss occurring between any two points in a power transmission line. Such drop, Resistance, Reactance & leakage of the line.
*VOLTAGE RATING*	The highest rating that may be continuously applied to a cable construction in conformance with the standard or specification.
*VSWR*	Abbreviation for voltage standing wave ratio. It is the ratio of transferred signal voltage as compared to reflected signal voltage measured along with the length of transmission line.
*WALL THICKNESS*	The Thickness of Insulation or Sheath.
*WATT*	The unit of electrical Power.

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