Information   Sheets
D
Term	Explanation
dB	Abbreviation for Decibel. A term that expresses two power levels
	used to indicate gains or losses in a system.
DC	Abbreviation for Direct Current. See Current DC.
Delay Line	A transmission line device designed to delay a wave or signal
	for a specific length of time.
Derating Factor	A factor used to reduce the current carrying capacity of a cable
	when used in environments other than that for which the value was
	established.
Dielectric	An insulating medium which intervenes between two conductors
	and permits electrostatic attraction and repulsion to take
	across it.
Dielectric  Strength	The voltage which an insulator can withstand before breakdown
	occurs.
DIN	Deutsche Industrie Norm. (German industrial norms)
Distortion	Any undesired change in a wave form or signal.
Disturbance	An undesired input variable that may occur at any point within
	a feedback control system.
Drain wire	Uninsulated wire in conact with the shield of a cable.
Duct	A tube for carrying electrical cables.