> I think that's the same with all the /computer/ equipment that I've seen > which connects to 3ɸ power. A single phase could be used for all of it.
Computer exist which require three phase at a unit power supply level. It's often also used for large blowers if the cabinet(s) don't strictly require airflow from e.g. a raised floor. > But I'm told that it's simpler / more economical (from a wiring / > cable plant point of view) to deliver more power to the equipment as 3ɸ > than it is 1ɸ. It also saves you on current-carrying conductors for raceway fill calculations as long as your power factor isn't too bad. Thanks, Jonathan
