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insulation definition - telecom
The dielectric material that surrounds a metal conductor and prevents it from touching another conductor or the ground and, thereby, shorting the circuit. Insulation typically is made of some sort of plastic material. Inside wire and cable standards vary according to the applications, but generally favor insulation that is characterized as low flame-spread, low-smoke, and low-toxicity.

Webster's New World Telecom Dictionary Copyright © 2008 by Wiley Publishing, Inc., Indianapolis, Indiana.
Used by arrangement with John Wiley & Sons, Inc.

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