At 4:19 PM -0400 3/27/2010, Lawrence David Eden wrote:
Most people are too cheap to buy good surge protectors (I
definitely fit into that category!). That's where the marketing
for the UPS comes in -- you end up buying the better surge
protector because it's part of the UPS box.
What should I look for if I was in the market for a "good surge protector?"
The UPS we use are all APC.
The surge protectors (wall stubs and power strips) are various
brands, APC, Belkin, etc.
The real key here to make sure that none of your computer equipment -
from the modem to the wallwart that powers your left toe - is plugged
directly into the wall. Make sure it's all on surge protectors so
there are NO direct paths for spikes to sneak in.
At 8:12 PM -0700 3/27/2010, Justin The Cynical wrote:
Dan wrote:
> What you NEED is good surge protection. The battery backup "feature" of
> a UPS is gravy.
I would have to partially disagree Dan.
The battery backup is gravy, yes.
What one needs is good surge protection /and/ power conditioning (true
sine wave output is vastly preferred).
Power conditioning is done by capacitors in the surge protector etc,
not from the battery.
A while ago, I started graphing the readings from my APC SmartUPS, and
the results are interesting to say the least. Going with a 5 minute
granularity, it seems that from about 10:30PM to 7AM every day, the
power around here drops from it's normal 118 VAC to around 113 VAC. Not
much of a drop, sure, but with how sensitive electronics can be, why
take chances IMO.
Sounds like you need to have a conversation with your power company.
Whatever is causing the daily sags needs to be identified and
repaired.
- Dan.
--
- Psychoceramic Emeritus; South Jersey, USA, Earth.
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