-----Original Message-----
From: Michel Jullian
So wire size depends on A, and since the V are known (115V), it makes
sense that
the VA _of the load_ be used in calculating the conductor size .
<><><><><><>
Not if you know the PF. For example, I have a 20 KVA UPS that has an
aribitrary PF rating of roughly 0.8; so, in reality, it is a roughly a
15 kW UPS. Now, the electrical dudes design the load cables for 20 KVA
or 167 A when it is absolutely impossible for the device to supply more
than 125 A (at 120 V). Insane.
Terry
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