Jostein, Interesting, your peaks are in winter while ours are summer air-conditioner loads. We have had an underground transformer fail (explode) twice under load. And it died once from a lightening strike. (and cost me a TV set!) I don't have the external drives plugged in unless using them. Most all of our home electronics are on surge protectors. Regards, Bob S.
On Thu, Jul 24, 2008 at 2:40 AM, AlunFoto <[EMAIL PROTECTED]> wrote: > 2008/7/23 Mark Roberts <[EMAIL PROTECTED]>: >> A backup battery will keep it going during a power outage, but doesn't >> help protect against a direct lightning strike. (A house two streets >> over from ours suffered a hit two summers ago. I suppose I could tell >> myself that it's on higher ground and so we're much more likely to get >> hit here, but that's not something I want to rely on!) > > There's not a lot of thunderstorms where I live. > > However, the power companies are as negligent here as anywhere else, > and we've had our share of transformator blow-ups... Apparenly what > happens is that explosive gas develops inside the trafo due to missing > maintenance. My guess would be hydrogen gas electrolysed from rain > seeping into the construction, but I dunno. Those blow-ups are famous > for sending powerful current spikes through the grid. Summer two years > ago, we lost 3 large 3Com Superstack switches at work when a larger > trafo in the neighborhood blew up. > > So add the occasional thunderstorm, and there's all the more reason to > be careful with precious data... > > I currently rely on this setup: > > wall socket -> surge protector -> voltage stabilizer -> surge protector -> PC. > > Reason for the stabilizer is that grid voltage tends to drop well > below the nominated 230V in electric "rush hours" in winter. Late > afternoons are the worst, when people get home from work, do their > cooking, turn up the heat in their living room, deal with the laundry, > etc. > > Leaving out the battery part of the UPS reduce cost tremendously. > Here's the stabilizer: > http://www.apcc.com/resource/include/techspec_index.cfm?base_sku=LE1200I > > The surge protectors are standard run-of-the-mill cheap thingies that > sometimes stops working and gets replaced. > > I hope it's not false security... > > Jostein > > > -- > http://www.alunfoto.no/galleri/ > http://alunfoto.blogspot.com > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
