installing new UPS for my office and needs electrical work...

[hecktic]

Many if not most line conditioners are nothing more than power strip protectors inside a fancy box, renamed, and sold for $hundreds.

Any line conditioning that that expensive box does is already inside electronics power supplies.

For example, what does a power supply do? First AC power passes through a serious line filter. Then converted to high voltage DC (exceeding 300 volts). Then filtered again. Every electronic power supply has now done more than any line conditioner might do. And that is only the supply's front end.

Then the supply converts high voltage DC to high voltage radio frequencies. Any 'dirty' electricity is now made much 'dirtier'. Then filtered again. Passes through galvanic isolation while high voltage is converted to high current. Then the low voltage radio frequency is converted to DC. And filtered again.

Show me a line conditioner that does any such conditioning? Reasons why DC voltages inside all electronics are so clean. Converted to much higher voltages. It is made even dirtier. Filtered so many times after each conversion. Converted from AC to DC to AC and then to DC again. Where does any line condition even begin to do any of this?

It is called a line conditioner. The only reason why so many recommend it. That thing called a power supply (that does massive line conditioning)? It does not sound like line conditioning. Therefore it must not do all those things listed above.

Too many will promote that line conditioner because their only electrical knowledge is a 'feeling'. It sounds like it must do something because a power strip protector is now called a *line conditioner*. Scams are so easy to promote when so many make recommendations based only on its name. Never once learn any numbers.

View the spec numbers for that line conditioner. Many have numbers that are identical to a $25 power strip protector. A majority will ignore numbers. Only hear the name. Then *know* it must do more.

Line conditioners typically do almost nothing. Job of a power supply - to do massive line conditioning. Rather amazing how much a power supply does with so few parts. Some appliance power supplies do even more for very little more money. Tens or 100 times less than what so many pay for line conditioners.

No I agree completely, infact most new server power supply units and even desktop/workstation PSUs do exactly as you just said. It makes complete sense.

But what about for an appliance that doesn't have a Power Supply like a computer. Like maybe a High Def. TV? Any idea if these TVs would benefit from a Line conditioner? If so, what spec should the line conditioner be?

like this:
http://www.us-appliance.com/pw101.html