Return-Path: Received: (qmail 4331 invoked from network); 16 Feb 2001 09:24:05 -0000 Received: from unknown (HELO warrior-inbound.servers.plus.net) (212.159.14.227) by 10.226.25.101 with SMTP; 16 Feb 2001 09:24:05 -0000 Received: (qmail 13311 invoked from network); 16 Feb 2001 09:24:06 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 16 Feb 2001 09:24:06 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 14Th2Q-0006eR-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 16 Feb 2001 09:18:50 +0000 Received: from chalfont.mail.uk.easynet.net ([195.40.1.44]) by post.thorcom.com with esmtp (Exim 3.16 #1) id 14Th2P-0006eM-00 for rsgb_lf_group@blacksheep.org; Fri, 16 Feb 2001 09:18:49 +0000 Received: from ericadodd (tnt-1-131.easynet.co.uk [195.40.206.131]) by chalfont.mail.uk.easynet.net (Postfix) with SMTP id 842D2F84A3 for ; Fri, 16 Feb 2001 09:18:32 +0000 (GMT) Message-ID: <001e01c097f9$e3ddf900$83ce28c3@ericadodd> From: "g3ldo" To: rsgb_lf_group@blacksheep.org References: <21031.200102151453@gemini> Subject: LF: Re: Insulator problems Date: Fri, 16 Feb 2001 09:20:47 -0000 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: James Moritz said: > I notice a few people have been having problems with insulators > melting/cracking lately. I had problems with my insulators until I > fitted some corona rings. ..... I haven't had problems with corona at insulators although corona did occur from a poorly finished antenna connection. But I did have another problem. I use PA0SE dog bone insulators, which are excellent for QRO using small antennas. The insulators were fixed to supports using 2mm nylon cord. Twice now the antenna has come down because of a failure in the nylon cord. At the point of the break there is no indication of any burning but the ends of the nylon cord, where the break occurred, are hard rather than frayed. This seems to me as though heat was involved in the failure. It only seems to occur where the length of cord is short. Nylon cord is used to support the antenna at the far end (by the house) but this 4mm nylon cord has not given trouble in years of operation. Regards, Peter, G3LDO