Return-Path: Received: (qmail 13512 invoked from network); 30 Oct 2002 17:30:15 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 30 Oct 2002 17:30:15 -0000 Received: (qmail 24959 invoked from network); 30 Oct 2002 17:31:57 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 30 Oct 2002 17:31:57 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.10) id 186wcb-0004iH-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 30 Oct 2002 17:27:13 +0000 Received: from [194.73.73.92] (helo=carbon.btinternet.com) by post.thorcom.com with esmtp (Exim 4.10) id 186wcb-0004i8-00 for rsgb_lf_group@blacksheep.org; Wed, 30 Oct 2002 17:27:13 +0000 Received: from host213-122-86-250.in-addr.btopenworld.com ([213.122.86.250] helo=main) by carbon.btinternet.com with smtp (Exim 3.22 #8) id 186wcZ-0000Wj-00 for rsgb_lf_group@blacksheep.org; Wed, 30 Oct 2002 17:27:12 +0000 Message-ID: <000801c28039$8c6dea20$fa567ad5@main> From: "Alan Melia" To: "LF-Group" Date: Wed, 30 Oct 2002 17:26:52 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Mike's insulators ?? Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=5.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.42 X-Spam-Level: * Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Hi Mike, and all, could it be that the insulators are good.....I cannot really see Decca (or Racal ) using rubbish in the PAs...... Might it be that Perspex will burn if there is an ignition source. In this case the ignition source is the 'sharp' end of the wire, which is subject to corona discharge (mini plamsa torch) when excited. Would this be solved by soldering a corona ring at the high voltage end of any wires?? A brass "curtain ring (gosh I am showing my age again !!) or simply a circular loop of thick copper wire would probably do the trick. I think Jim found he needed to use these and certainly Ralph who is running the 166.5kHz beacon in W-land has set fire to several lengths of white waste pipe before fitting rings. Cheers de Alan G3NYK alan.melia@btinternet.com