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Lightning and your computer: With the storm season upon us, it
is important to understand how damaging a common thunderstorm can be to
your computer equipment.
Lightning striking around your neighborhood or town has the ability
to send intense power surges across telephone and power lines. These
power surges can travel a great distance and enter your house via the
power and telephone lines. Your home's wiring and fuse system should be
adequate to protect your home against these surges, but even a small
surge can devastate your delicate computer hardware even if you are
using a surge suppressor or other protection device.
The average thunderstorm is 6-10 miles wide and travels at around 25
miles per hour. Lightning can strike as far as 10 miles from the leading
edge of the storm. You can be in immediate danger even in clear skies.
What to do if a storm is approaching your area:
- When storms are in your area it is important to disconnect from
the internet and turn your computer off. To completely protect your
computer, it is advised to completely unplug your computers power
cables from the wall outlet.
- Also it is advisable to unplug the telephone line from the wall
jack as well if you computer connects to the internet via your
telephone line. Most users forget this step and their modem is
damaged by a lightning strike.
- Once your computer is completely unplugged it should be
relatively safe from potential power surges across the power lines
and telephone lines in your home.
- After the storm has passed you can then plug your computer's
power and telephone line again and use your computer as normal.
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