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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

Butyl (IIR-Isobutylene-Isoprene) Rubber

A polymer of isobutylene with small amounts of isoprene. This insulation and jacketing material is characterized by excellent resistance to oxidation and aging, exceptional ozone resistance and very good electrical properties. Has good resistance to moisture, physical abuse and chemicals, but is alkali-sensitive. Uses include power cables, apparatus and equipment leads, control cables, etc.

Butyrate

See Cellulose Acetobutyrate.

BW

Designation for braided wire Armor or Basket Weave.

BWG

Abbreviation for Birmingham Wire Gauge, which was used extensively in Great Britain and the U.S. for many years but is now obsolete. Its uses have persisted, however, for certain purposes including galvanized steel wire for cable armor.

BX

Armored building wire, 600V.

Bypass Filter

A filtration device used on a coolant cleaning system that pulls liquid from one reservoir for cleaning and returns it to the same reservoir on an independent loop from the process or other filtration units on the same system.
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