With the proper electrical installation, you should be able to put on as
many PC machines as you want. Do not use ground fault type outlets with
PC's and monitors, because the switching power supplies can cause the ground
fault outlet to trip to off.
The switching supplies can radiate back down the neutral of the AC line,
thus causing some over stressing of the electrical feed. The voltage
difference between the true ground and the neutral can go out of
specifications from this.
There were problems in many older buildings where many devices with
switching power supplies were installed. This ended up over heating the
power company's wiring, and feed transformers. The location where I am, had
this problem. This can all be corrected, but for a cost.
With a proper electrical installation, there should be no problems.
I have worked contracts where we put many servers and PC machines in one
room. I have some clients with as many as 20 machine in one large single
area. On a 15 amp breaker we would put 2 complete machines with monitors,
via a 1000 Watt UPS. Even the UPS has an internal switching power supply.
There are many companies with large offices that have many PC machines in
one area. I have seen large opened office areas in large centres, with a
few hundred machines. There are banks of routers, and sub systems, with a
number of management PC machines in smaller rooms off to the side of the
main areas. This is all workable. If not, there are many companies that
would not be working at large scales of operation today!
I think that this person who has this problem should get a new electrician
who knows about large scale installations.
Jerry Greenberg GLG Technologies GLG
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