X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao06.cox.net ([68.230.241.33] verified) by logan.com (CommuniGate Pro SMTP 5.1.1) with ESMTP id 1504588 for flyrotary@lancaironline.net; Wed, 25 Oct 2006 20:36:01 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.33; envelope-from=dale.r@cox.net Received: from fed1rmimpo01.cox.net ([70.169.32.71]) by fed1rmmtao06.cox.net (InterMail vM.6.01.06.01 201-2131-130-101-20060113) with ESMTP id <20061026003531.QXUC6235.fed1rmmtao06.cox.net@fed1rmimpo01.cox.net> for ; Wed, 25 Oct 2006 20:35:31 -0400 Received: from [192.168.1.100] ([68.2.134.48]) by fed1rmimpo01.cox.net with bizsmtp id eobE1V00J12ovmC0000000 Wed, 25 Oct 2006 20:35:14 -0400 Message-ID: <454002C9.5020107@cox.net> Date: Wed, 25 Oct 2006 17:35:21 -0700 From: Dale Rogers Reply-To: dale.r@cox.net User-Agent: Thunderbird 1.5.0.7 (Windows/20060909) MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: What size CB or fuses.. EC 2 items.. References: In-Reply-To: Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Wendell Voto wrote:

In order to properly select the right CB and wire size combination, one must know the acceptable voltage drop for the item being powered. Also, the amount of power dissipation that is acceptable in the wire (how hot do you want it to get). These concerns are what give me the most grief because they are usually unknown.

Wendell

Wendell, Sorry this took me so long to find, but I knew that I had seen a chart that shows a relationship among current, wire size, run length, and temperature rise. Sure enough, it was in Bob Nuckolls's AEC. It's on a one page PDF file at: http://www.aeroelectric.com/articles.html click on the fifth entry, "pdf wire size chart". That at least leaves only the acceptable voltage drop as an unknown variable. Dale R.