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Transient overvoltages are very short duration increases in voltage,
between two or more conductors. Though short, the effects they can have
on components and solid state circuitry of modern electronic systems
can be, quite literally, devastating.
-
data corruption
- system disruption
- component degradation
- physical damage
- unnecessary downtime
Most modern electronic systems are sensitive to
the effects of transient overvoltages:
computers, telecommunications equipment, PBX, control and instrumentation
systems, telemetry, programmable logic controllers and closed circuit
TV systems. In fact any piece of equipment, incorporating sensitive electronic
components is at risk - and this includes many uninterruptible Power Supplies
(UPS).
Transient overvoltages ('surges', 'spikes'
etc) have two main causes:
- the secondary effects of lightning - affecting
both mains power supplies and data, signal or communication lines
- electrical switching events - primarily affecting
mains power supplies
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