[wellylug] Recommend a UPS?

[David Antliff]

Nic Cave-Lynch wrote:
> One thing to note with UPS ratings: there's a difference between the 
> Watts drawn by the loads and the kVA rating of the UPS, this is because 
> the loads aren't purely resistive. Some very sneaky UPS manufacturers 
> (Power Kinetics come to mind) use an unrealistic factor for converting 
> between the resistive load and the kVA, so a 1.2 kVA device from them 
> will barely run two PCs, but a 1 kVA device from Vectek (who understand 
> about these things) will drive two PCs fine.

Ah, yes I read about these things - ESR wrote a HOWTO where he said that 
one rule of thumb is to just half the VA rating to get the true power.

Thanks for the reply (and to Peter & Mark as well); I'm slowly digesting 
them.

-- 
David.