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Protect the pc from sudden changes in electricity flow and keep it
going should the electricity go away (allowing you to switch the
computer off properly). |
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Quality to consider before purchasing one |
UPS is a component that is often undervalued, but which prevents in
many cases several components within the computer to break.
Unfotunately a good quality UPS is rather expensive, and people can
appreciate its importance only after several parts of the pc have
broken (as for instance after a bad storm...).
The factors to consider are the level of protection that they
provide, the presence of useful accessories (such as protection for
the telephone and ADSL line, which is an important thing to have),
and whether or not they have long-lasting batteries. There are two
types of outlets: filtered outlets that are powered and protected in
real time from brownouts and overvoltage, and outlets that are only
powered, which continue to provide electricity even when the main
electricity in the building goes out. |
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The cost of a good quality UPS varies according to power (expressed
in VA: 150 VA more or less correspond to 100 W). For example, the
cost of a good 800 VA UPS (about 550 W) is approximately 220 Euros. |
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Brands to keep in mind (buy power supply ) |
Brands to consider are essentially two:
1) Tecnoware (high technological level made in Italy, good quality
and expensive)
2) APC (slightly inferior technological level compared to Tecnoware,
lots of accessories, the most popular in the world) |
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