[Herts] UPS anyone?

[James Ronan]

<snipped />

> Hmmm, what happens if you plug 4 UPSes in series into each other...?
> First one holds up the power for ten minutes, then the second takes
> over, etc... ( perhaps ;-)
> 

Not to sound nerdy, but in the UPS field connecting one UPS' output to
another ones input is called "Cascade Configuration". It basically extends the 
autonomy (life) of the critical load (servers 'n' stuff) on the last UPS in the 
chain; In the event of a mains failure.

Ta,
JamesR