SS72012 datasheet(130/144 Pages) ACIT

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Aerospace | Military | Transportation | Industrial | Specialty

Glossary

Microwave Frequency: Frequency usually above 100 megahertz.

Migration of Plasticizer: Loss of plasticizer from an elastomeric

plastic compound with subsequent absorption by an adjacent material

with lower plasticizer concentration.

MIL: When all-uppercase, an abbreviation for U.S.military

speciﬁcations.

Mil: .001" (1/1000 inch).

Mismatch: A termination or connector having a different impedance

from that for which a circuit or cable is designed.

Modulus of Elasticity: The ratio of stress to strain in a material that is

elastically deformed.

Moisture Absorption: The amount of moisture in percentage that an

insulation will absorb under speciﬁed conditions.

Moisture Resistance: The ability of a material to resist absorbing

moisture from the air or when immersed in water.

Molecular Weight: The molecular weight of a compound is the sum of the

atomic weights of the atoms in the molecules that form the compounds.

Monomer: A low molecular weight substance consisting of molecules

capable of reacting with like or unlike molecules to form a polymer.

Multiple-Conductor Cable: A combination of two or more

conductors cabled together and insulated from one another and from

sheath or armor where used.(Note:special cables are referred to as 3-

conductor cable, 7-conductor cable, 50-conductor cable, etc.)

Multiple-Conductor Concentric Cable: A cable composed of an

insulated central conductor with one or more tubular stranded

conductors laid over it concentrically and insulated from one another.

Multiplex: The transmission of two or more signals of differing

frequencies through a single transmission line.

Mutual Capacitance: Capacitance between to conductors when all

other conductors including ground are connected together and then

regarded as an ignored ground.

NEC: Abbreviation for National Electrical Code, which covers the use of

wire and cable in many applications.

NEMA: Abbreviation for National Electrical Manufacturers Association.

Neoﬂon®: Trademark of Daikin Industries, LTD.

Neoﬂon® ETFE: Registered trademark for Daikin Industries, LTD.

Polylene tetraﬂuoroethylene is a 150˚C rated ﬂuoropolymer used for

wire insulation and cable jacket.

Neoﬂon® FEP: Registered trademark of Daikin Industries, LTD.

Fluorinated ethylene polypropylene (FEP) is a 200˚C rated

ﬂuoropolymer used for wire insulation and cable jacket.

Neoﬂon® PFA: Registered trademark of Daikin Industries, LTD.

Perﬂuoroalkoxy (PFA).A 250˚C rated ﬂuoropolymer used for wire

insulation and cable jacket.

Nickel: This metal offers a combination of corrosion resistance,

formability, and tough physical properties.For these reasons, nickel is

used for alloying purposes and in nickel-clad copper wire.Nickel-plated

conductors are more tarnish-resistant than silver-plated conductors,

but require activated ﬂux for soldering.

Noise: In a cable, any extraneous signals which interfere with the

signal being transmitted.

Nylon: The generic name for synthetic ﬁber-forming polyamides.Used

in wires and cables as a yarn for wire serving and braid, for extruded

jackets; and as a coating.

OD: Abbreviation for outside diameter.

Ohm: Unit of electrical resistance.Resistance of a circuit in which a

potential difference of one volt produces a current of one ampere.

Ohm’s Law: Current in terms of electromotive force E and resistance R:

given by the equation:I=E/R.

Open Cell: Foamed or cellular material with cells which are

interconnected.

Organic: Designating or composed of matter originating in plant or

animal life or composed of chemicals of hydrocarbon origin, either

natural or synthetic.

Overcoat: A stranded conductor fused together with an overall tin

coating.

Overpotential: A voltage above the normal operating voltage of a

device or circuit.

Overvoltage: See overpotential.

Ozone: Form of oxygen produced by discharge of electricity into air.

Parallel Pair: A duplex construction where the two insulated

conductors are laid parallel and then covered overall with a braid or

jacket.It is often referred to as "duplex cable".

Percent Conductivity: Conductivity of material expressed as a

percentage of that of copper (copper conductivity = 100%).

Percent Plating: Quantity of plating on a conductor expressed as

percentage of weight; thus, for the same percentage, as the conductor

diameter increases, so does the thickness of the plating.

Permittivity: The ratio of the electric displacement in a medium to

the intensity of the electric ﬁeld producing it.The property of a

dielectric material that determines how much electrostatic energy can

be stored per unit volume when unit voltage is applied.See Dielectric

Constant.

Phase: A speciﬁc point of advancement in an electrical cycle,measured from

an arbitrary starting point;expressed in degrees (360˚ = one cycle).

Phase shift: Change in phase of a voltage or current after passing

through a circuit or cable.

Picks Per Inch: The number of times the carriers in a braid cross over

each other in the same direction along the longitudinal axis for each

inch of cable length.

Pitch Diameter: Diameter of a circle passing through the center of the

conductors in any layer of multi-conductor cable.

Plain Conductor: A conductor consisting of one metal only.

Planetary Twister: A twisting machine whose payoff spools are

mounted in rotating cradles that hold the axis of the spool in a ﬁxed

direction as the spools are revolved about one another so the wire will

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