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w_tom w_tom is offline
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Default How to clean up mains power?

On Aug 13, 10:08 pm, "Dana" wrote:
Keep on believing that crock. A UPS is way better than a power strip.


If true, then Dana would cite manufacturer spec sheets. He would
post numbers that show how a UPS is better than a power strip. He
does not and he cannot. So he attacks - 'kill the messenger'.
Meanwhile, smarter consumers can view those numbers. Let's review an
APC Back-UPS 300 spec sheet:
Surge Protection and Filtering
Surge energy rating 300 Joules


That's it. Nothing more. Where is all this protection? It does
not even cite the various electrical anomolies and numbers for that
protection. It does not even claim to protect - only lists 300 joules
of MOVs? The entire protection system is 300 joules of MOVs an no
claims that those MOVs do anything? Even grocery store power strip
protectors have more joules.

Why did Dana somehow know a UPS provides better protection? He
knows because he feels. The color glossy promotion sheet made some
ambiguous claim about protection. That is often the only proof of
surge protection - some ambiguous statement without numbers.

Numbers demonstrate grossly undersized protection inside an APC
UPS. IOW only enough joules to claim some surge protection. That is
sufficient for Dana to make emphatic claims - to know like an expert.

Numbers say that surge protection is near zero. Did they lie? Of
course not. It was not zero protection. It was near zero
(ineffective) protection. But sufficient for Dana to claim protection
better than power strips. He could not bother to first read the
numbers?

Meanwhile, a typical UPS connects an appliance directly to AC mains
when not in battery backup mode. UPS battery backup output may be
extremely 'dirty'. Does 'dirtiest' electricity from a cheap UPS cause
the router to lock up? A diagnostic test.