X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 01 May 2008 22:57:29 -0400 Message-ID: X-Original-Return-Path: Received: from web36903.mail.mud.yahoo.com ([209.191.85.71] verified) by logan.com (CommuniGate Pro SMTP 5.2.2) with SMTP id 2880486 for lml@lancaironline.net; Thu, 01 May 2008 15:38:25 -0400 Received: (qmail 82684 invoked by uid 60001); 1 May 2008 19:38:14 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type:Message-ID; b=vnsZ6OpSG24u2vSnIocH6iHwJ+K6UPPb/gplE+yR3e+FyxqQWWksucPp1Gl7cKmRxl60zXEfmiI9pzJHKcXqJBr+vknttwg/WvkctX/tlW3aonD95Y+LTvok48uNY3FfCwELnRmjLjvwfWwf/TERhH/YYIChI5YlV8asgKa7qkY=; X-YMail-OSG: xTfCXM8VM1lvtebfInOPEebiuDuViIsulyHORDamnp1r5T9anh3EmCJlrthS9dv4q1tj5rJ_v96.LwxNi6_SGHP2Up1vMz9V8Dwev9MTdWL0yDQzXwTykE0- Received: from [209.225.224.254] by web36903.mail.mud.yahoo.com via HTTP; Thu, 01 May 2008 12:38:14 PDT X-Mailer: YahooMailRC/975.23 YahooMailWebService/0.7.185 X-Original-Date: Thu, 1 May 2008 12:38:14 -0700 (PDT) From: Chris Zavatson Subject: Re: [LML] Circuit protection X-Original-To: Lancair Mailing List MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-729301572-1209670694=:82180" X-Original-Message-ID: <563838.82180.qm@web36903.mail.mud.yahoo.com> --0-729301572-1209670694=:82180 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable When I first saw the long trip times allowed for circuit breakers, I was sh= ocked.=A0 That was the reason I used not just fuses, but fast-acting fuses,= for all of my expensive electronic devices.=A0 Instead of waiting minutes = or seconds, the circuit is shut down in milliseconds.=A0 Of course I carry = spares as required by the FAA.=A0=A0In ten years=A0of flying I have yet to = use one.=A0 The other benefit to this approach was that for 20 or so circui= ts I could use a $2 fuse holder instead of a $22 circuit breaker.=A0 Disabl= ing a circuit is done via rotation rather than pulling.=A0 Also, an LED ind= icates a blown or disconnected fuse.=0A=A0=0A=A0=0AChris Zavatson=0AN91CZ= =0A360std.=0Awww.N91CZ.com=A0 =0A=0A=0A ______________________________= ______________________________________________________=0ABe a better friend= , newshound, and =0Aknow-it-all with Yahoo! Mobile. Try it now. http://mo= bile.yahoo.com/;_ylt=3DAhu06i62sR8HDtDypao8Wcj9tAcJ --0-729301572-1209670694=:82180 Content-Type: text/html; charset=us-ascii
When I first saw the long trip times allowed for circuit breakers, I was shocked.  That was the reason I used not just fuses, but fast-acting fuses, for all of my expensive electronic devices.  Instead of waiting minutes or seconds, the circuit is shut down in milliseconds.  Of course I carry spares as required by the FAA.  In ten years of flying I have yet to use one.  The other benefit to this approach was that for 20 or so circuits I could use a $2 fuse holder instead of a $22 circuit breaker.  Disabling a circuit is done via rotation rather than pulling.  Also, an LED indicates a blown or disconnected fuse.
 
 
Chris Zavatson
N91CZ
360std.

Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. --0-729301572-1209670694=:82180--