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The Book of Terms

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.


 

All   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

W

1) An initial used in building wire codes to indicate weather resistance. 2) Designation for watt.

W/G

Designation for with ground.

W/O/G

Designation for without ground.

WA

Designation for Wire Armored.

Waffle Arm

1) A loose arm mounted coaxially on the top of a block and used for controlling the tension of wires between blocks. 2) Used on overhead take off (OTO) type, accumulation blocks.

Wahl Factor

An allowance for the fact that a higher fiber stress exists on the inside coil surface of a loaded spring than on the outside surface.

Waisted Springs

See Hourglass Springs.

Wall

See Wall Thickness.

Wall Thickness

A term expressing the thickness of a layer of applied insulation or jacket.

WAN

Designation for Wide Area Network which is a network spanning a broad geographical area, providing data communications between computers and peripherals and switching equipment.

Warp

The wires (or threads) that run the length of a piece of woven material. The weft are the horizontal wires/threads.

Warp Beaming Machine

A machine for filling the beams with wire separately from the wire weaving loom to save time when several looms are in operation.

Warrington

A strand construction in which one layer of wires, often the outer, is composed of alternating large and small wires.

Wash-Heat Metal

A metallurgical term to depict a metal resulting from a heating process that may not have a given set of elements in its alloy.

Water Absorption

Ratio of the weight of water absorbed by a material to the weight of the dry material.

Water Absorption Test

A method to determine the amount of water absorbed through an insulating material after a given water immersion period.

Water Hardening

Hardening of rod or wire by heating followed by quenching in water. Close control of water temperature is essential as small differences in temper­ature cause marked changes in the hardened structure. Also known as chilling. The process is confined to low-carbon steels.

Water Stains

For cable, this can be a superficial etching of the surface from prolonged contact with moisture in a restricted air space, such as between wraps of a coil or other layers of a product. Such stains are generally white in appearance.

Water-Blocked Cable

A cable constructed with internal voids to prevent longitudinal water passage under a given pressure.

Water-Cooled Cable

A cable that is internally cooled by circulating water. A high-voltage cable can carry two or three times as much current as a conventional cable of equiv­alent size, with a consequent saving in costly copper conductor. The central duct is formed by a helical strip round which the conductor is stranded, in the same way as in a single-core, oil-filled cable.

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