LINK UPS WAIVER

IN THE EVENT THAT A UPS IS NOT INSTALLED AND WE ARE REQUIRED TO VISIT YOUR PREMISES DUE TO A POWER PROBLEM AND YOU HAVE NOT REBOOTED YOUR SYSTEM, THERE WILL BE A CALLOUT FEE

WHAT IS A UPS?

UPS is an acronym for UNINTERRUPTIBLE POWER SUPPLY. A UPS is a power protec􀆟on device that will regulate
the incoming power to acceptable parameters and will also supply a limited amount of power when there is no
mains power. It has a number of func􀆟ons, designed to protect almost all electronic devices. To understand
why this device is so important, it may help to understand power a li􀆩le be􀆩er. If, in the past, you have
witnessed flickering lights in your home or office, computers freezing up or restar􀆟ng, then you may be
suffering a power supply problem. What many people do not realize is that the power provided to their home
or office is at 􀆟mes irregular and not necessarily a con􀆟nuous 220V supply, which is the ideal voltage supply.
However, even in residen􀆟al areas this can o􀅌en be more 280V or less than 190V. The experience could even
be worse in industrial areas, if you live near or work in these zones, due to machinery being used and a drop in
power that is being drawn from these zones. A basic standby UPS can sense the voltage is not good enough or
within tolerance and will automa􀆟cally go to ba􀆩ery power un􀆟l normal power returns. Other units can adjust
the voltage for the connected equipment to keep it at safe levels. High-end UPS models can give a perfectly
stable output of 230V at all 􀆟mes regardless of input power. Other common power problems can be surges and
spikes. This is where the incoming voltage jumps rapidly. A UPS can help fix most power problems.
WHY USE A UPS?
Power problems can and do occur every day
Lightning strikes on power lines and electrical substa􀆟ons can cause substan􀆟al damage to electrical
equipment, even to domes􀆟c and commercial users who are hundreds of kilometers away. However, many
spikes, surges and noise occurring every day in homes and offices can have the same devasta􀆟ng effect on
your computer hardware and so􀅌ware equipment as a lightning strike…
AN OVERVIEW OF ELECTRICAL DISTURBANCES:
SPIKES:
A Spike is a drama􀆟c increase in voltage normally las􀆟ng only a few milliseconds. Cause: Car accidents resul􀆟ng
in fallen power lines and lightning during an electrical storm. Result: Data corrup􀆟on during a hard
TO ENABLE YOU TO MAKE THE CORRECT DECISION, PLEASE FIND THE BENEFITS OF INSTALLING A UPS:
7
disk read/write cycle as well as component breakdown due to over-specified voltage and/or out-of-range
voltage.
BLACKOUT:
Total loss of mains power. Cause: Power grid overload, lightning, car accidents and earthworks. Result: Loss of
unsaved current work and possible loss of en􀆟re hard drive contents due to a head crash or disrup􀆟on of the
file alloca􀆟on table.
SURGE:
A short-term increase in supply voltage. Cause: The switching off of large electrical loads e.g. commercial air
condi􀆟oners, fridges and industrial motors. Result: Damage or premature failure of delicate electronic
components due to excessive dissipa􀆟on of heat.
BROWNOUT AND SAG:
A Brownout is a long-term decrease in supply voltage, where a SAG is a short-term decrease in supply voltage,
that lasts several hours. Cause: The switching on of large electrical loads e.g. commercial air condi􀆟oners,
fridges and industrial motors. Other common causes are due to the over demand of u􀆟lity power e.g. increased
use of domes􀆟c air condi􀆟oners during summer months. Result: Possible head crash or disrup􀆟on to the file
alloca􀆟on table due to the equipment’s power supply hovering between power-on and power-off states, many
􀆟mes per second; also damage or premature failure of delicate electronic components due to excessive
dissipa􀆟on of heat.
NOISE:
EMI (Electronic Magne􀆟c Interference) and RFI (Radio Frequency Interference), more commonly referred to as
noise, is induced into the power supply. Cause: Radia􀆟on from high energy equipment such as welders, radio
transmi􀆩ers, fluorescent lights and electric switching equipment. These devices superimpose a distorted signal
onto the sine wave. Result: Keyboard lock-up and data corrup􀆟on through unsynchronized radical impulses
being saved as legi􀆟mate data.
HOW DOES A UPS WORK?
A UPS is used in many ways. For the sake of this explana􀆟on we will use a computer as an example of a typical
UPS applica􀆟on. A UPS works by regula􀆟ng power to the electronic items you have connected to it (in the
event of power surges or brownouts). In the event of a power failure, a UPS will alert you to the fact that there
is no power and depending on the size of the UPS can either: shut down your computer; let your computer
keep on running; alert you to the fact that there is a power failure which will allow you to shut down your
equipment yourself. This means that anything you are working on can be saved and then shut your computer
down and it also means that in the event of any form of power surge your computer is protected from damage.
We hope that we have given you sufficient informa􀆟on to stress how
important it is to use a UPS on your computer and electronic equipment. By
using a UPS you can keep your equipment running safely from power
problems mi􀆟ga􀆟ng any damage or incurring replacement and repair costs.

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