X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from email2k4.itlnet.net ([64.19.112.14] verified) by logan.com (CommuniGate Pro SMTP 5.1.0) with ESMTP id 1480219 for flyrotary@lancaironline.net; Mon, 16 Oct 2006 23:40:08 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.19.112.14; envelope-from=jwvoto@itlnet.net Received: from rav.itlnet.net (unverified [192.168.10.149]) by email2k4.itlnet.net (Rockliffe SMTPRA 7.0.3) with SMTP id for ; Mon, 16 Oct 2006 22:39:44 -0500 Received: from JWVOTO (unverified [64.19.115.74]) by mail.itlnet.net (Rockliffe SMTPRA 7.0.3) with ESMTP id for ; Mon, 16 Oct 2006 22:39:43 -0500 Message-ID: <00f601c6f1a0$029f6620$26731340@JWVOTO> From: "Wendell Voto" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: What size CB or fuses.. EC 2 items.. Date: Mon, 16 Oct 2006 22:54:02 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00F3_01C6F175.F9A2C6E0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 This is a multi-part message in MIME format. ------=_NextPart_000_00F3_01C6F175.F9A2C6E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ----- Original Message -----=20 From: Dale Rogers=20 To: Rotary motors in aircraft=20 Sent: Monday, October 16, 2006 7:45 PM Subject: [FlyRotary] Re: What size CB or fuses.. EC 2 items.. Dave, I'm not saying that you've said anything incorrectly, but you did=20 leave out a fairly important factor (as well as included a factor=20 that is often overlooked: length of the wire run.) A wise person=20 sizes the wire to carry at least 20% more current than the "run"=20 load of the device(s) it supports. _Then_ size the breaker to=20 support the load *potential* of the wire, not the actual load. =20 That's how one avoids "false" breaker trips. Dale R. 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 ------=_NextPart_000_00F3_01C6F175.F9A2C6E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
----- Original Message -----
From:=20 Dale = Rogers
Sent: Monday, October 16, 2006 = 7:45=20 PM
Subject: [FlyRotary] Re: What = size CB or=20 fuses.. EC 2 items..

Dave,

   I'm not saying that you've said = anything=20 incorrectly, but you did
leave out a fairly important factor (as = well as=20 included a factor
that is often overlooked: length of the wire = run.) A=20 wise person
sizes the wire to carry at least 20% more current than = the=20 "run"
load of the device(s) it supports.  _Then_ size the = breaker to=20
support the load *potential* of the wire, not the actual = load. =20
That's how one avoids "false" breaker trips.

Dale=20 R.

In order to properly select the right = CB and=20 wire size combination, one must know the acceptable voltage drop for = the item=20 being powered.  Also, the amount of power dissipation that is = acceptable=20 in the wire (how hot do you want it to get). These concerns are what = give me=20 the most grief because they are usually unknown.
 
Wendell
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