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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

Line Loss

1) The total of the various energy losses occurring in a transmission line. 2) Pressure losses in pipe lines feeding fluids to various operations.

Line of Force

Used in the description of an electric or magnetic field to represent the force starting from a positive charge and ending on a negative charge.

Line Tag

A rope to guide devices that are being hoisted.

Line Voltage

The value of the potential existing on a supply or power line. Rated voltage of cables.

Line Wires

A term used to describe the wires in a welded wire mesh held together by a cross wire. A term for the top or bottom horizontal wires used in chain link and field fencing. A line wire is sometimes used at intervals throughout the depth in chain link fencing to add extra strength to its con­struction.

Line, Bull

A rope for large loads.

Linear

Arranged in a line. A relationship whereby two variables are in direct proportionality, such as stress and strain in linear elasticity.

Linear Time Card

Term used in the regulation of a dancer to maintain constant tension during a wiredrawing operation. The linear time card is used in place of a tachometer on a master drive to perform the necessary control. It adjusts the speed of the follower to match the speed of the master.

Linearity

When the effect is proportional to the cause in the first degree.

Link

An assembly of telecommunications facilities between two points, not including terminal equipment.

Link Fabric

A wire foundation made from a succession of wires linked together to form the foundation of bed springs, cots and some types of upholstery.

Link Wire

A drawn or wiped galvanized mild steel wire for the manufacture of link fabric for cots and similar constructions. Also called square link mesh wire.

Linseed Oil

Used as a lubricant in wiredrawing and obtained from the seed of flax.

Lintel Wire

See Head Lining Wire.

Linz-Donawitz Process

Also known as the basic oxygen process, this half-century-old practice embodied a furnace design that enabled oxygen to be added to the air intake to permit more rapid refining of the charge of the material in the furnace. See Furnace, Basic Oxygen.

Liquid Lubricants

Term used for lubricants in the liquid state as opposed to the dry powdered or paste state. Liquid lubricants are usually referred to as coolants that perform various functions during a metal working operation.

Liquor Finish

A smooth, bright finish characteristic of wet-drawn wire when a liquor from fermented grain mash is used as a drawing lubricant.

Lissajous Figure

A special case of an x-y plot in which the signals applied to both axes are sinusoidal functions. This can be used for determining phase and harmonic relationships.

Listed

1) Items having the trademark of nationally recognized testing labs. 2) Equipment included in a list published by an organization that is acceptable to the authority that has jurisdiction and maintains periodic inspection of the production of listed equipment.

Litz Wire

Generally understood to apply to conductors built-up by successive stranding of wires in groups of three, each individual wire being insulated with enamel or silk. The wire is constructed of individual film-insulated wires bunched or braided together in a uniform pattern of twists and length of lay. Used for products such as high frequency transformers and kitchen products, it is designed to prevent heat generation and decrease AC resistance. The name is derived from the German word litzendraht, meaning woven wire.
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