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sure if your system has them installed we suggest asking your engineer or electrician to verify. It is a small price for additional peace of min.

Main causes of transient over voltages

1. Lightning Strike

a) A lightning Strike can have a destructive or disturbing effect on electrical installations situated up to several milesaway from the actual point of the strike.

b) During a storm, underground cables can transmit the effect of a lightning strike to electrical equipment installedinside buildings.

c) A lightning protection device (such as a lightning rod or a Faraday cage) installed on a building to protect it againstthe risk of a direct strike (fire) can increase the risk of damage to electrical equipment connected to the main supplynear or inside the building.

Left: Direct lightning strike on overhead line; Right: Indirect lightning strike on ground

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Disturbance generated by the user

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4. Disturbances generated by the user

These interferences have little energy but their short duration, their steep wave front and their peakvalue can have harmful effects on the proper functioning of the sensitive equipment causing

either disruption or complete destruction.

References:

1. ABB (Transient Voltage Surge SuppressorsOVR Series

2. The Data Center Journal (where IT, Facilitiesand Design Meet)

About Author //

Edvard Csanyi

Edvard - Electrical engineer, programmer and founder of EEP . Highly specialized for design of LV high power busbar trunking (

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2.Surge Protection of Electronic Equipment | EEP

Sep 22, 2012

[...] temperatures quickly except during very large or long disturbances. This requires correspondingly largesurge energies. Also, the materials that constitute the insulation of these components can operate attemperatures [...]

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3.Power System Stability | EEP

Jun 02, 2012

[...] nature, such as a short-circuit on a transmission line or loss of a large generator.Following a transientdisturbance, if the power system is stable, it will reach a new equilibrium state with practically the entire [...]

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