Glossary

X

Reactance expressed in Ohms.

XHHW-2

An XLPE insulated, moisture resistant conductor designed for use in wet or dry locations and an operating temperature of up to 90 degrees Celsius.

XLP

See 'XLPE'

XLPE

Cross-Linked Polyethylene. A thermo set plastic compound that is used for insulation of wire and cable.

Xmodem

A protocol for transferring files during direct dial-up communications. Developed by Ward Christensen in 1977, Xmodem does error checking to ensure that information is not lost or corrupted during transfer.

Yield Strength

The force required to stretch a material.

Z

Impedance

ZAF

Z-Axis Adhesive Film

Zero Crossing

The point at which a sinusoidal voltage or current waveform crosses the zero reference axis.

ZIF

Zero Insertion Force

ZIP

Zigzag Inline Package