Return-Path: Received: from smtp02.infoave.net ([165.166.0.27]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with ESMTP id com for ; Wed, 9 Jun 1999 19:54:46 -0400 Received: from citcom.net.citcom.net ("port 1276"@[206.74.37.155]) by SMTP00.InfoAve.Net (PMDF V5.1-12 #23426) with SMTP id <01JC7IO9QG488WXX0C@SMTP00.InfoAve.Net> for lancair.list@olsusa.com; Wed, 9 Jun 1999 19:57:18 EDT Date: Wed, 09 Jun 1999 19:54:40 -0400 From: John Cooper Subject: circular mils To: lancair.list@olsusa.com Message-id: <3.0.5.32.19990609195440.008f1210@mail.citcom.net> X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Not a wizard, but I have lots of books: A mil is 0.001 inch. A circular mil is the area of a circle 1 mil [.001] in diameter, which is pi x .0005^2. or .0000007854 square inches or 7.854 x 10^-07 sq. in. To convert circular mils to square inches, multiply by 7.854 x 10^-07. #4 wire is 41,740 circular mills = 0.03278 sq. inches (source: American Electricians' Handbook), so... So a .090 strap would need to be 0.36 inches wide to be equivalent to a #4 AWG cable. I hope this is right... >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML homepage: http://www.olsusa.com/Users/Mkaye/maillist.html