|
Post by Geoff on Aug 18, 2008 22:43:51 GMT
Verbivore,
Is that what the two Ps in UPPS signify, heavy duty? I thought those things were simply UPSs, Uninterruptable Power Supplies. It's also interesting (to me) to know why they should have failed at just the time when they are supposed to operate, when there is a power failure.
If you really do have a UPPS, I would like to know what it is.
No, I'm not wanting to take this thread into a discussion of electrics or electronics.
|
|
|
Post by Verbivore on Aug 19, 2008 3:31:18 GMT
Geoff: UPS = Uninterruptable Power Supply (or System) U PPS = Uninterruptable Protected Power Supply / System. Some of the less expensive units (with only one "P") don't guarantee much protection, and are unsuitable for computer equipment that is far more sensitive to spikes and drops than other electrical equipment. A UPS is not something I'd trust my computer system's welfare to, whereas a U PPS is. (My monitor alone cost $7K, so I'm not about to risk that.) My first "P" did its job; it was the "U" that failed. That is the first time it has done so in its five years, so I have replaced it and am giving it a rest. The batteries in them seem to last only about four to five years, but I have found that a rest for a couple of months, followed by a thorough recharging, brings them back to life for another year or so's service. I have, in the past, removed the dead battery from one and replaced it with an external car battery; worked well, but an 88 amp-hour car battery under the desk is not very practical in a tiny office.
|
|
|
Post by Geoff on Aug 19, 2008 7:29:50 GMT
Verbivore,
I've not looked into UPSs, I just know what they are. I've not heard of UPPSs before, or, if I have come across them, I never considered them to be a different breed - they're simply another UPS. Thanks for the information.
|
|
|
Post by Pete on Aug 19, 2008 9:56:36 GMT
I thought those things were simply UPSs, Uninterruptable Power Supplies. It's also interesting (to me) to know why they should have failed at just the time when they are supposed to operate, when there is a power failure. I had an old car once and the windscreen wipers only ever failed when it was raining. Weird, huh?! ;D
|
|
|
Post by Verbivore on Aug 19, 2008 10:34:56 GMT
I had an old car once and the windscreen wipers only ever failed when it was raining. Weird, huh?! ;D Not necessarily. Did the car have Lucas (the "Prince of Darkness") electricals? Lucas - along with the unions - helped to kill off the Good British Car. If Lucas couldn't make it blow smoke or oil, they considered it a failure! ;D ;D The only British car I ever owned with reliable electricals was an S3 Bentley - and it had Bosch sparky bits. The Rovers (14 of those!), Riley, Morrises, Austins, Jaguars, Daimler, Commer van, Humber, Siddeley ... all were plagued by that Prince of Darkness. 'Twas a good thing that most of them were from the era of hand-cranks and low-ish compression ratios.
|
|
|
Post by Pete on Aug 19, 2008 11:37:10 GMT
I had an old car once and the windscreen wipers only ever failed when it was raining. Weird, huh?! ;D Not necessarily. Did the car have Lucas (the "Prince of Darkness") electricals? Lucas - along with the unions - helped to kill off the Good British Car. If Lucas couldn't make it blow smoke or oil, they considered it a failure! ;D ;D The only British car I ever owned with reliable electricals was an S3 Bentley - and it had Bosch sparky bits. The Rovers (14 of those!), Riley, Morrises, Austins, Jaguars, Daimler, Commer van, Humber, Siddeley ... all were plagued by that Prince of Darkness. 'Twas a good thing that most of them were from the era of hand-cranks and low-ish compression ratios. Not sure who made the wiper bits - it was an old VW Beetle. But I know what you mean about Lucas as I once worked for Land Rover.
|
|
|
Post by Verbivore on Aug 19, 2008 11:55:54 GMT
Not sure who made the wiper bits - it was an old VW Beetle. But I know what you mean about Lucas as I once worked for Land Rover. If they were electric wipers, they were most likely Bosch - the Good Gear. However, I think my 1956 Beetle had vacuum-operated wipers, and that variety usually went slower with higher engine revs, but flat-out at idle! Completely useless.
|
|
|
Post by Pete on Aug 19, 2008 11:57:16 GMT
Mine was an early '70s model, I think.
|
|
|
Post by Barry on Aug 21, 2008 11:54:35 GMT
Tone,
A brilliant idea! Many thanks for it. As you can see there has been a fair bit of saluting, and there has definitely been a fair amount of fluttering at the top of my flagpole ...
|
|
|
Post by Pete on Aug 21, 2008 14:53:19 GMT
Tone, A brilliant idea! Many thanks for it. As you can see there has been a fair bit of saluting, and there has definitely been a fair amount of fluttering at the top of my flagpole ... Too much information? Certainly an image I am having trouble shaking, Barry.
|
|