At 09:06 AM -0400 06/23/2005, Peter Saint James wrote:
We concluded that the power adapter would protect the Powerbook from
a surge. Turns out this is not true.
I have to admit that the surge to my book was a big one. A bolt of
lightening hit near my house. It knocked out the surge suppressor
then continued on, zapping the printer, other items that were
plugged into it, and my powerbook.
ouch. I take it you're ok?
:( I must have missed the original conversation back then.
Power Adapter vs Surge Protector vs Lightning Arrestor.
A power adapter is a simple box containing a few capacitors, a few
diodes, a tiny transformer, and maybe a small fuse. It offers little
to no protection against anything beyond minor surges.
A surge supressor is a fancy piece of electronics designed to smooth
out (supress) the power surges that occur due to normal atmospheric
interference. They are NOT designed to protect you from near-by
lightning hits. eg: magnetic storm activity, power company foolin
around, one too many things plugged into that old bedroom circuit.
A lightning arrestor is a large single-trip device directly connected
to ground. It's purpose is to route most of a (close-by) hit's power
to ground. eg: lightning rods, arrestor boxes on antennas, etc.
Another thing to think about: Surges that come up your cable coax or
telephone lines. They're the #1 cause of modem death! Make sure
they're grounded properly, where they come into your home. And put a
surge protector between them and your computer too!
Bottom line: No matter how much you spend on surge protectors and
such -- if you're in the middle of a t-storm, UNPLUG your equipment.
Get off the grids!
- Dan.
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