Path: utzoo!attcan!uunet!tut.cis.ohio-state.edu!ucbvax!ACM.PRINCETON.EDU!ams
From: ams@ACM.PRINCETON.EDU
Newsgroups: comp.sys.sgi
Subject: Re: Power for Power Series
Message-ID: <9002072208.AA03235@fourier.Princeton.EDU>
Date: 7 Feb 90 22:08:03 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 43

Ok guys, which is it?  Mark Bradly writes:

>	The plug is a NEMA 5-15.  The wiring of the power distribution box
>	expects 110 on each of the hot and `neutral'.  So it should look like
>	this:
>	
>	                  110VAC--- |   | ---110VAC
>	
>	                              O ---GND
>	
>	                                                in the USA, with the
>	110's 180 degrees out of phase.  220VAC single phase is what they have in
>	Europe.  We ship a different plug to Europe, too.


On page 1-1, under "Site Electrical Requirements":

ALL POWER CENTER MODELS REQUIRE A DEDICATED 220 Volt single phase 30 amp
power line.

A dedicated line must provide 220 current in the following range:

	o	195-240 Volts of single phase AC
	o	47-63Hz

A POWER Center can draw a maximum of 24 amps from the 220 Volt line 
(depending on configuration of the POWER Center).  The POWER Center
has a maximum VA of 5280.

The NEMA receptacle (for domestic installations) must have the following
characteristics:

	o	NEMA L6 - 30R (250V @ 30 amps) Twist Lock

This excerpt comes from "POWER Center Site Preparation" Version 1.0,
Document Number 007-5310-110.

--ams

p.s.  Markb--I don't think a 110vac on both sides of a three prong plug
	is a code violation.  All US 220 standards I am familiar with
	are twist lock (circular) or triangular pattern (like on the
	"average family electric clothes dryer).