Power Surges - Disaster caused how to avoid
Power surge are one of the most feared incident on electronic devices. Same
as computer, they are really susceptible to power surges. Even though surges
usually last only milliseconds (and are somewhat filtered by the transformer in
the power supply), that high voltage can exceed the withstand voltage of the
insulating layers inside the integrated circuit chips and burned everything
inside your computer.
The power delivered to your electronics devices and
computer is stable and constant, in theory of course. In real life, it doesnít
work that way. Often power surge occurs when the normal flow of electricity is
interrupted, and then started again, or there was an occurrence that something
sends excess electrical energy into the system. Any number of events, from
lightning strikes to power failures, can cause power surges. Even your own
electrical devices and computer can cause them. Refrigerators and air
conditioners, for example, have motors that turn on and off, diverting
electricity to and from other appliances and producing low-level power surges.
On computer, internal peripheral can cause small surges that can reduced your
computer lifespan or even destroy it completely.
On computer a switching power supply is designed to convert AC into various
DC voltages. The internal transformers on power supply that do this, the
capacitors to bridge over dips in the line power, all these are rated to handle
a certain amount of energy at any given time. If you go outside of range of that
certain amount, you overload the parts. Maybe marginal parts fail and die. Maybe
they let through more energy than they should. In some cases, maybe things catch
on fire. Like things you saw on fried chips due to extreme overclock. Cheaper
Power Supply Units will be using cheaper components - the upshot of this is the
components have weaker tolerances, and don't handle going outside their
tolerances as gracefully.
To prevent it you need a good UPS (Uninterruptible Power Supply) to protect
your computer and another electronic appliance. However no UPS can withstand
power of nature. Even a good UPS cannot tolerate extreme power of lighting.
During storm or rain situation you might want to consider turn off you computer
and unplug it. Also unplug phone lines and another line like coaxial cables that
are being used for cable TV and broadband connection, since they are susceptible
to lighting strike. Power surges caused by lighting are seldom to happen though
there are possibilities.
On computer you will face another problem. Internal surges that canít be
prevent from external UPS. This caused simply by turn it on and off your
computer. So every time you turn on and off your computer, you actually
decreased life span of your computer and adding possibility to destroy the
component completely. And there is no way to avoid this matter for now. Since
there is no data how it will affect your computer. I suggest that you scheduled
your computer to be use as efficient as possible.--FA
Dicky Satrio Sudiro is an author of blog Digital Binary.