19 Jan
2009
19 Jan
'09
8:11 p.m.
On Monday 19 January 2009 02:59:53 pm Patrick Finnegan wrote:
On Monday 19 January 2009, Roger Holmes wrote:
Not if he uses the original pdu and original power cord, which has only
a single 10AWG neutral conductor.
Ah, THAT was the missing piece...
Now I understand what the concern is with this stuff!
Not being familiar with these systems, is that cord hard-wired in to the
computer end of things? Hooked to a single connector? Something like that?
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, a critter that can
be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
But, if
you run the same load from three separate single phase
circuits and (worst case) the three circuits are all the same phase,
then the neutral current will be the SUM of all three phase currents.
That's 3 times what it would be otherwise and runs a serious danger of
melting the neutral and starting a fire.
I agree with all but the last bit, because if he's running it from
three separate supplies, surely he will have three neutral
conductors, so no problem.