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The Book of Terms

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The Book of TermsThe WJI Book of Wire & Cable Terms: an interactive experience of learning and sharing
This book, written by industry volunteers and containing more than 5,000 entries, is an asset for newcomers to wire and cable.

At the same time, it also represents an opportunity for industry veterans to give back by either updating or adding to the more than 5,000 entries. This is an honor system process. Entries/updates must be non-commercial, and any deemed not to be so will be removed. Share your expertise as part of this legacy project to help those who will follow. Purchase a printed copy here.

   

 

0-9   A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Shiner

A hole or bare spot on the insulated conductor through which the conductor can be seen.

Shock Test

A test to determine the ability of a cable to withstand a violent physical concussion as might occur during handling or use.

Shoot Wires

See Weft Wires.

Shore Hardness

An instrument measure of the surface hardness of an insulating or jacket material.

Short Circuit

A load that occurs when an ungrounded conductor comes into contact with another conductor or grounded object.

Short-Circuit Temperature

See Temperature, Short-Circuit.

Shot Blasting

A method of removing scale or mill deposits by blasting with metal shot. See Descaling.

Shot Peening

The impinging of small hard metal particles to cold work the surface of a metal. Shot peening improves the fatigue resistance of the material so treated. This is carried out in an enclosed cabinet in which the material under treatment is revolved within a stream of shot expelled from a moving nozzle by compressed air.

Shrink Tubing

Non-metallic tubing that has been extruded, crosslinked and mechanically expanded. When reheated, it will return to its original diameter.

Shrinkable Tubing

Tubing which may be reduced in size by applying heat or solvents.

Shrinkage Cavity

A void left in cast metals as a result of solidification shrinkage and the progressive freezing of metal toward the center. See Pipe.

Shrouding

Protecting material with a loose covering of waterproof paper or other suitable material. Only the top and sides of the material are covered.

Shunt

A device with appreciable resistance or impedance connected in parallel across other devices or apparatus to divert some of the current. Appreciable voltage exists across the shunt and appreciable current may exist in it.

Shunt Wire

A conductor joining two parts of an electric circuit to divert part of the current.

Shute

See Weft.

SI

Designation for the International System of Units (Système International) as established by the General Conference of Weights and Measure in 1960. This is the preferred system over MKS, CGS, English and Metric systems. See ISO.

SIA

Designation for Steel Interlocked Armor.

SIC

Designation for Specific Inductive Capacity. See Dielectric Constant.

Side Set

A difference in gauge between the two edges of a sheet.

Side Wall Bearing Pressure

The pressure on a cable that is being pulled around a curved surface under tension. If excessive, this pressure can damage cable components and reduce the life of the cable.
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