jimwalker
Senior Member
- Location
- TAMPA FLORIDA
Doing a very large doctors office.Changes keep being made.Just how many computer cubicles on 1 circuit would be pushing my luck ? I know 180 va per yoke but this does not seem like the way to go.
Computer Stations
- Thread starter jimwalker
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Re: Computer Stations
Jim, you should get the engineer of record involved with these changes. The neutral of a multi-wire circuit (assuming 120y/208) as well as any dry type transformers (k rating) may even be a bigger problem.
Roger
Jim, you should get the engineer of record involved with these changes. The neutral of a multi-wire circuit (assuming 120y/208) as well as any dry type transformers (k rating) may even be a bigger problem.
Roger
- Location
- Massachusetts
Re: Computer Stations
Jim office cubes come in many flavors, some (many) set up for multiwire branch circuit feeds with super neutrals.
Most times each cube gets more than one circuit but that circuit is shared with others.
It is common not to have more than 2 to 4 PCs per circuit. So if you have a group of 24 office cubes you would need 6 to 12 circuits feeding it.
However the internal circuity is not usually under the control of the EC. Each location that the furniture contractor places a feed whip may have one to six circuits.
Hope you have lots of spare panel space.
All that aside I do agree with Roger, make these decisions someone else's problem.
Jim office cubes come in many flavors, some (many) set up for multiwire branch circuit feeds with super neutrals.
Most times each cube gets more than one circuit but that circuit is shared with others.
It is common not to have more than 2 to 4 PCs per circuit. So if you have a group of 24 office cubes you would need 6 to 12 circuits feeding it.
However the internal circuity is not usually under the control of the EC. Each location that the furniture contractor places a feed whip may have one to six circuits.
Hope you have lots of spare panel space.
All that aside I do agree with Roger, make these decisions someone else's problem.
jimwalker
Senior Member
- Location
- TAMPA FLORIDA
Re: Computer Stations
It is 120/208 y.What they keep doing is taking offices that were for one person and try to croud 3 more.The total load for office can easily handle this and we have full size neutrals.My concern is seeing 6 computers end up on 1 circuit.This has been a constant add 1 more outlet and data here.This will be hard to fix later as most everything is MC.What i am looking for is a reasonable wattage per station.This is in the billing department and expect they all be running same time.Rather the norm here to see changes on commercial without new calcs.We are talking 600 amps and 30,000 sq feet
It is 120/208 y.What they keep doing is taking offices that were for one person and try to croud 3 more.The total load for office can easily handle this and we have full size neutrals.My concern is seeing 6 computers end up on 1 circuit.This has been a constant add 1 more outlet and data here.This will be hard to fix later as most everything is MC.What i am looking for is a reasonable wattage per station.This is in the billing department and expect they all be running same time.Rather the norm here to see changes on commercial without new calcs.We are talking 600 amps and 30,000 sq feet
jimwalker
Senior Member
- Location
- TAMPA FLORIDA
Re: Computer Stations
These are the el cheapo cubes.Duplex behind each one and 1 data.5 feet of formica ,knee wall then next one.I wish i could get this on paper but that will not happen.Already went rounds with the AC guy.7 AHU ,they tried to slip 2 of them in on single phase and specs showed 3 phase.EMT and wires were already in.Told him he would not like our bill for us to rewire and get new stamped prints.
These are the el cheapo cubes.Duplex behind each one and 1 data.5 feet of formica ,knee wall then next one.I wish i could get this on paper but that will not happen.Already went rounds with the AC guy.7 AHU ,they tried to slip 2 of them in on single phase and specs showed 3 phase.EMT and wires were already in.Told him he would not like our bill for us to rewire and get new stamped prints.
- Location
- Massachusetts
Re: Computer Stations
I got you now Jim.
6 PCs per circuit will probably work, however none of our engineered prints would ever be drawn that way.
Also watch out for laser printers, they need a dedicated circuit most times.
I got you now Jim.
6 PCs per circuit will probably work, however none of our engineered prints would ever be drawn that way.
Also watch out for laser printers, they need a dedicated circuit most times.
jimwalker
Senior Member
- Location
- TAMPA FLORIDA
Re: Computer Stations
no and no.I think perhaps Bob is right.400 watts per station should cover it but it is poor design.I do not want to be there if they kick a breaker,6 secretaries in a foul mood
no and no.I think perhaps Bob is right.400 watts per station should cover it but it is poor design.I do not want to be there if they kick a breaker,6 secretaries in a foul mood
kentirwin
Senior Member
- Location
- Norfolk, VA
Re: Computer Stations
I've dealt with a lot of cube farms. Everybody's got a computer today in any office setting. One thing I've had a big problem with is people assuming they can power anything and everything they want as long as they can plug it in. By far the worst offender of the worst is the FLOOR HEATER! I'm in southeast VA and the winter's aren't even that bad.
I've dealt with a lot of cube farms. Everybody's got a computer today in any office setting. One thing I've had a big problem with is people assuming they can power anything and everything they want as long as they can plug it in. By far the worst offender of the worst is the FLOOR HEATER! I'm in southeast VA and the winter's aren't even that bad.
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