LIT_PRO2500_manual_G.qxd 11/10/2003 3:39 PM Page 24
Spike: An abrupt transient which comprises part of a pulse, but exceeds its average amplitude considerably.
Surge: A large, sudden change of voltage or current, usually caused by the collapse of a magnetic field or by a shortened or opened circuit element.
Surge Protector: A device which protects component circuitry from high alternating voltage peaks or transients.
Transient: A momentary surge on a signal or power line which may cause component breakdown and failure.
UL: A common abbreviation for Underwriters’ Laboratories, Inc., a corporation supported by some underwriters for the purpose of establishing safety standards on types of equipment or components.
Volt (V): The unit of measurement of electromotive force. One volt is equivalent to the force required to produce a current of one ampere through a resistance of one ohm.
Voltage: Electrical
Voltage Rating: The maximum voltage which an electrical device or component can sustain without breaking down.
17