Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!ucsd!ames!dftsrv!drax!buck
From: buck@drax.gsfc.nasa.gov (Loren (Buck) Buchanan)
Newsgroups: comp.sys.sgi
Subject: Re: Power for Iris 220S
Message-ID: <883@dftsrv.gsfc.nasa.gov>
Date: 14 Feb 90 14:23:53 GMT
References: <9002140322.AA05845@physics.phy.duke.edu>
Sender: news@dftsrv.gsfc.nasa.gov
Reply-To: buck@drax.UUCP (Loren (Buck) Buchanan)
Organization: Computer Sciences Corporation @ NASA Goddard Space Flight Center
Lines: 21

In article <9002140322.AA05845@physics.phy.duke.edu> rgb@PHY.DUKE.EDU ("Robert G. Brown") writes:
Thanks for the description [[[mostly deleted]]].

>The reasons for running 220V lines in this way are to minimize risk --
>unless you touch two lines simultaneously you can only get a 110V
>shock ...

In a prior life (before college) I was a marine electrician.  The ships
I worked on had "two phase" 110V lines.  55V on neutral, and 55V on hot.
Again this is for the above saftey reason.  The only problem with this
is the modifications that needed to be made to convert commercial
electrical equipment (radios, coffee pots, etc.) safe (well, actually
just a bit more sailor proof :-}).

B Cing U

Buck

Loren "Buck" Buchanan | internet: buck@drax.gsfc.nasa.gov | standard disclaimer
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