Return-Path: X-Spam-DCC: paranoid 1102; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id tATAa40X030502 for ; Sun, 29 Nov 2015 11:36:04 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1a2zI9-0007rm-JD for rs_out_1@blacksheep.org; Sun, 29 Nov 2015 10:33:13 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1a2zI9-0007rd-8n for rsgb_lf_group@blacksheep.org; Sun, 29 Nov 2015 10:33:13 +0000 Received: from mail-wm0-f43.google.com ([74.125.82.43]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.86) (envelope-from ) id 1a2zH5-0003An-52 for rsgb_lf_group@blacksheep.org; Sun, 29 Nov 2015 10:33:12 +0000 Received: by wmww144 with SMTP id w144so103390236wmw.0 for ; Sun, 29 Nov 2015 02:31:48 -0800 (PST) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=content-type:mime-version:subject:from:in-reply-to:date :content-transfer-encoding:message-id:references:to; bh=kzjJK/VbAmur1VWNNZ7VuOj34yIEPi5nfrqDxiZmSEY=; b=PN9LmagmGP2PnvaObq3dlkDxHjOXjeKdIjRMqS4XxmhFW4V6braIgDwsAo1yTuaimQ LK32U/H4PGify/E+dgja8a0c5X7v+zqDO+HNtDdKt8rF5WZLBzKmwuVlJNrmhwF9maCM PyK3KFf3i2ATlcnBv3hdSD7rAl0Pyld+MA3+5xRmnQathujtTU+hAc5KABSCa2EkmttW qH6GSIIWyWO6JYp1uUl3h9WKQkLFF6B/wg3hLIFIno7n8FVdyb2esRFVOJLB4w7gIXTX /inoyArLFlc19NBSxmtVRAY7tvshbeEyQTswlsN7kY5yfw9LjgpEitVptONzh88HYiKq vBAQ== X-Received: by 10.28.65.69 with SMTP id o66mr20125851wma.18.1448793108297; Sun, 29 Nov 2015 02:31:48 -0800 (PST) Received: from [192.168.1.101] ([82.98.23.94]) by smtp.gmail.com with ESMTPSA id m11sm16070604wma.5.2015.11.29.02.31.46 for (version=TLSv1/SSLv3 cipher=OTHER); Sun, 29 Nov 2015 02:31:46 -0800 (PST) Mime-Version: 1.0 (Mac OS X Mail 9.1 \(3096.5\)) From: John Rabson In-Reply-To: <565AD11D.30808@t-online.de> Date: Sun, 29 Nov 2015 11:31:44 +0100 Message-Id: <0DB6CB96-84CF-40D4-B425-DFC7E6C1D57A@gmail.com> References: <56587F40.5070709@posteo.de> <87FFCE57-D2D7-4616-B5E8-B84CD819C685@talktalk.net> <5658E894.6090208@posteo.de> <82B8809C-36E5-4731-8A4B-002BD4465B12@talktalk.net> <5658EE97.2020107@posteo.de> <565AD11D.30808@t-online.de> To: rsgb_lf_group@blacksheep.org X-Mailer: Apple Mail (2.3096.5) X-Scan-Signature: c0336009bd9bab526ca27d297ea7579a Content-Type: text/plain; charset=utf-8 Subject: Re: : 3 phase (was LF: G3KEV) X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by paranoid.lipkowski.org id tATAa40X030502 Status: O X-Status: X-Keywords: X-UID: 5426 Welcome, Wolf, I agree about the superiority of three-phase AC. Our Power lecturers went into some detail as to why this was so. My comments originally related to the use of three-phase supplies in domestic installations. Regarding the UK situation, my source of information was a colleague who had previously worked for the Central Electricity Generating Board. The French information came by word-of-mouth from somebody who worked for the electricity maintenance organisation (ERDF). I do not know who was responsible for the decisions to phase out domestic three-phase but I am reminded of an episode in Fred Hoyle’s novel “The Black Cloud” in which the Astronomer Royal tells the Prime Minister “It’s not my fault the transmitter isn’t working. You shouldn’t have let the Home Secretary [aka Interior Minister] do the wiring”. John F5VLF > On 29 Nov 2015, at 11:19, Dr. Wolf Ostwald wrote: > > gm reflectees ! > 3 phase AC is far superior to single phase. Motors, transformers and power distribution are more effective and lightweighted using 3 phase . > It does not make sense to me that "authorities" e.g. France and England try to get rid of it. Or was that just an assumption? > If true, these authorities ought to refresh their physics lessons as well as environmental concerns. Or even better, let people do the job that are in the know ! > > my two pence worth > > wolf df2py > john.rabson07@gmail.com Researching history of RABSON, BLACKSHAW, GAUNTLETT, VERLANDER and ROBSONNE