Spikes/Surge:Very short,(onemillisecong) event of very high surge in coltage to thousands of volts and amps .Spikes are common in all parts of the world and repeated exposure to spikes will damage electronic equipment and corrupt data.What causes it? Switching on/off of nearby equiment,lightning,motors starting etc.

RFI (Radio Frequency interference)Noise:High frequency disturbances that occur within a short period of time (milliseconds),RFI & noise are very common in all parts of the world and are the main cause of data corruption.What causes it?Generated bu high frequency noise from nearby equipment,transmittes,mobile phones,switching on/off of certain loads,fiuorescent lights,motor speed controls,light dimmers.

Over-Voltage:Long duration(milliseconds,seconds,minutes,hours or days)rise in the voltage above acceptable limits.Depending on the lecel of the over-voltage ,the damage can be instantaneous,severe and irreparsble.What caues it?On return of mains supply after power cuts,under-sized utility oscillating between periods of brown -outs and over-voltage or accidental (e.g.accidental connection between two phases).

Brown -Out:Long duration of low coltage (milliseconds to seconds,minutes,hours or days).What causes it?Most commonly an over -strerched utility,espevially in areas of poor power distribution infrastructure and remote areas.Common in dry seasons where water is used for electricity generation.

Lightning:Direct or nearby strikes can cause minor peoblems or severe disyurbances and damage.lightning peoduces spikes/surges,over-voltage or power cuts,What canses it?the surgeis gengrated bu either a directhit,or indirectly striking underground or overected equiupment in nearby buildings.

Power-cuts:common in every country in word,especially in areas of frequent voltage problems.suddenloss of power can cause damage ranging from corruption of data to mechanical faults as equipment is stopped while in operation,What causes it?power or sub station failure,breakdown in the distrrbution nerwork,or simply a pulg being pulled out accidentally.

power-back surges:These typocally occur when power returns after a power-cutand connected equipment receices a surge of electricity at an over-voltage level,which can be cery damaging(see above).What causes it?power back surges are created by the utility,when it restores supply at an above normal voltage in order to compensate for the demand as connected equipment re-starts simultaneously.

Telecom surge,spikes and lightning:Short term,high coltage and current phenomena occurring on the teleghone lines,Can cause irreparable damage to any piece of equipment connected to the incoming line,the telphone line itsdlf may even be damaged or destroted in sevre cases.What causes it?telecom spikes are caused bu lightning striking either the telephone linge directly or an object near it.

AVS-15Amp AC voltage stabilizer