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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

Knitting Needle Wire

Hard bright drawn carbon (0.85 to 0.89%) steel wire, polished after finishing. Anodized aluminum wire is also widely used.

Knock Down Test

Another name for the upending test to detect surface defects when determining the suitability of rod or wire for hot or cold forging. See also Upsetting Test.

Knockout

A section of an enclosure designed to be readily removed for installation of a raceway or other types of connecters.

Knoop Hardness

Microhardness determined from the resistance of metal to indentation by a pyramidal diamond indenter that is a diamond that is ground to an elongated pyramidal form.

Knotter

A mechanism for knotting the end of the top or bottom convolution of a coil spring about itself, thus anchoring the ends.

Knurling

Rolling a pattern on wire (or other material) by means of a special tool.

KOVAR

An alloy of iron, nickel and cobalt.

KPSI

Tensile strength or stress in general expressed in thousands of pounds per square inch.

KT

Designation for thermodynamic temperature.

kV

Designation for Kilovolt (1000 volts).

kVU

Designation for Kilovolts, ungrounded system (Type MV 133% insulation level).

kW

Designation for Kilowatt –1000 watts.

KWh

Designation for Kilowatt-hours (1,000 watt-hours).

L

Designation for lead sheath.

L-D

Designation for: 1) Low Density. 2) The Linz-Donawitz process of steel making by top blowing with oxygen.

LA

Designation for Lighting Arrestor.

Lacing and Harnessing

A method of grouping wires by securing them in bundles of designated patterns.

Lacing Cord or Twine

Used for lacing and tying cable forms, hook-up wires, cable ends, cable bundles, and wire harness assemblies. Available in various materials.

Lacing Tape

Flexible flat fabric tape for tying harness and wire bundles, securing of sleeves and other items, and general lacing and tying applications. Available in various materials.

Lacing Wire

Used in bedding and upholstery coil spring units, to lace the springs together and to fasten the outer springs to the border wire. Hard drawn high carbon wire, which must be of even temper.
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