Hurricane preparations:
protecting your computer equipment
Storms in general, and Hurricane season here in South
Florida in particular, justify some careful planning to protect
sensitive electronic equipment, including computers, printers, and
network equipment. The two main threats to guard against during a storm
are electric surges (and brown-outs - not enough power) caused by
lightning, and of course water (i.e. driving rain through damaged
windows, and flooding).
Whether a storm threatens or not, back up your important data. That is
probably the best investment you will make, according to people who had
to suffer through trying to re-create data files from scratch that took
sometimes years to do. For information on back-up options, click here
(backup info).
Here is some advice on steps to take to prevent damage to your computer
systems:
• Use a surge protector. Don't confuse a surge
protector with a power strip. A power strip is nothing more than a
few power outlets on a plastic box. They do not protect against
power surges. Good surge protectors often come with a power surge
rating (in joules) and offer some warranty against damage that may
occur despite the protector.
• Use battery back-up, i.e. an Uninterruptible
Power Supply (UPS): they have a built in battery that can power your
computer in case of a power outage for a short period of time,
generally 5 to 60 minutes. Most power outages last only a few
seconds so a UPS will prevent you from losing your work. Never plug
laser printers into a UPS.
When a lightning storm approaches.....
• By far your best bet is to power systems down
and disconnect power cables (either from behind the computer or from
the wall.. whatever has easier access) and all power cables to your
sensitive electronics; there is a limit how much of a lightning
strike in your immediate area that your (protected by surge
protectors) equipment can take. If you are unsure you will be able
to reconnect the cables, just use your digital camera to take a
picture of the back of the computer with all the cables connected.
Refer to that picture when you reconnect after the storm.
• If your computer system(s), printers, and
network devices are near a window, move them away from the window
and cover them in plastic just in case the window breaks and the
systems would be exposed to driving rain.
• One more thing to keep in mind, coreless phones
and televisions are also very susceptible to lighting strikes. Take
care to protect them too.