Cost to install 15A GPO?

I don't know what the norm is for UPSes, but drawing 2400 to 3600 W and supplying 1600W doesn't sound very efficient. Using the waste 800 to 2000W to heat the house in winter might help :-)

3 average PCs and the network gear might draw 300W tops on average, probably less IMO. Maybe peaking higher during disk activity, startup etc.

It probably wouldn't use anything like 10A in practice, so I'd put an 8 or 10 amp fuse in the UPS and give it a go.

Cheers,

supplying 1600W doesn't

might help :-)

less IMO. Maybe peaking

amp fuse in the UPS

Did you stop to think that when the batteries are charging, you may still need full output for the regular load?

--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

Yes, I did, thanks. Perhaps the batteries are charged at a higher current than I was expecting. I'd still be giving it a go though.

Cheers,

"Nick Adams"

** What that indicates IS that when *fully* loaded and charging, the unit draws in excess of 10 amps RMS continuous from the AC supply. So the makers were compelled to fit a 15 amp plug to comply with regulations.

Is it the sort that runs 100% of the time ( ie a sine wave supply ) - or only when AC supply is lost.

** Bet it is not even half that.

** IMO - that circuit is overloaded.

But all that will happen is the breaker in the power box will trip when the " uW" is operated.

** Yep.

........ Phil

Yes, it is an 'online' UPS and is supplying power from battery 100% of the time.

I agree. That was more of a worst case scenario. I would rather overestimate than underestimate.

They are not really average computers but rather servers. In total there is about 12 HDD's between a few RAID arrays. Even then...your right.

Probably. My question is, how much additional load will the UPS take? If I'm pushing it now how much closer does this bring me to breaking point (pun intended)?

Cool. Thanks Phil.

"Nick Adams"

** That is not strictly true.

The batteries will normally be fully charged and "floating" while an internal DC supply operates the 240 volt re-generator circuit. This DC supply will need to do *two* jobs whenever there has been a recent AC power outage, recharge the batteries AND run the 240 volt re-generator.

This is when the AC supply draw can exceed 10 amps RMS.

Your power circuit likely has a 16 amp breaker.

Now, the "uW" oven draws about 8 amps.

Add it all up.

Snap.

....... Phil

OK. Any idea of ballpark costs to add a new 15A outlet? I have no idea if its closer to $100 or $1000.

anywhere between one and two hun' normally ) dont quote me 'till the sparky looks) , depends on location and if it has certain hardware availible . ( and room in your electrical box)

Get a few installed at once if you need them.

1/3 of the fee is prolly appearance money.

upply ) -

the

re-generator.

'Pends if you need a new circuit, which is sounds like you do. If so, you'll be up for a new breaker and RCD if there isn't one already, and then there's the effort involved in running the cable, and there's the cost of the outlets. I'm guessing at least a couple of hundred, maybe $500 if it's a dog of a job, maybe more if there's complications.

Get a recommendation for a good sparkie and give them a call.

To give you some idea, about a year ago I got 2 new circuits put on - I supplied and ran cable, sparkie supplied RCD + 2 breakers and extra consumer unit plus 1 double exterior GPO and 1 industrial single phase gpo - all up cost about $400.

probably less IMO. Maybe peaking

You don't know much about PC's then! A Pentium CPU by itself requires about

100W each. Have you ever wondered why a single PC power supply is rated at 300-500 Watts, or more? Maybe your "average" is for a 24 hour period where the computers are turned off 2/3rds of the time?

MrT.

I suspect you are suffering under a misapprehension as to the actual consumption and power rating of a power supply , perhaps you might investigate OHM'S law .

$100 for RCD/MCDB combo $100 for cable, GPO, fixing etc. $240 for labour

Of course its more economical to get a couple of other items done at the same time if required.

about

at

where

I'm well aware of ohms law. You OTOH have no idea about modern PC power requirements when they are actually working. Or maybe you are claiming to have a PC power supply with greater than 100% efficiency??

MrT.

Once again I say you sir really know sfa about the inner workings of a computer , google surge and Ohms law .

rated

100%

What exactly should I be looking for? If Intel says a Pentium draws 135W at full load, (Ok the new ones are only 95W) how do I power it from a 100W power supply? Where does the power come from for the rest of the computer? What is the efficiency of the PSU? Please provide all the Ohms law calculations you believe are appropriate.

MrT.

Do you own work sport , it will be far more worthwhile. however keep in mind the power supply is work case max , it takes more to spin a drive up than to keep it spinning .(generalized example and have fun)

find out how much current the device uses to charge it's battery add that to your total peak equipment load.

That depends on where the cable is run and how hard it is to access those places. cheapest is probably to cut a hole in the wall and pur in a pull string the sparky can use to pull the wire through, (may involve drilling studs, removing roofing material and other fiddly bits. but does give a good finish)most expensive is getting the electrician to do the same but he hopefully knows how, in between is running the cable in a conduit where it can't easily be routed under the floor or above the ceiling.

It also depends on how busy the building industry is this month...

I'd be most suprised if it can't be done for under $500 prolly muchh less. but I'm guessing.

Bye. Jasen

requires

power

at

computer?

appropriate.

In other words you have no idea what you are talking about. If you used Google yourself, you could find out just how uninformed you actually are.

And hard drives are the least of your problems unless you have a few. Even some video cards draw more than 100 Watt these days. The heatsinks and fans aren't just for show! But you may still be running an 8086 with CGA and floppy disk drive I guess :-)

MrT.