The speed of an electrical signal down a length of cable compared to speed in free space expressed as a percent. It is the reciprocal of the square root of the dielectric constant of the cable insulation.

Very High Frequency, 30 to 300 MHz.

A unit of electrical pressure. One volt is the amount of pressure that will cause one ampere of current in one ohm of resistance.

Electrical potential or electromotive force expressed in volts.

A term used to express the amount of voltage loss in a conductor of given size and length drawing a given current.

The highest voltage that may be continuously applied to a wire or cord in conformance with standards or specifications.

A field or factory test in which a conductor is subjected to a higher than normal AC or DC voltage.

(Specific Insulation Resistance) The electrical resistance between opposite faces of a 1-cm cube of insulating material, commonly expressed in ohm-centimeters.

A chemical reaction in which the physical properties of an elastomer are changed by reacting it with sulfur or other cross-linking agents.