From owner-freebsd-questions@FreeBSD.ORG Sat Nov 29 03:04:04 2014 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id B51585EF for ; Sat, 29 Nov 2014 03:04:04 +0000 (UTC) Received: from nm1-vm4.bullet.mail.ir2.yahoo.com (nm1-vm4.bullet.mail.ir2.yahoo.com [212.82.96.75]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 05ACFA11 for ; Sat, 29 Nov 2014 03:04:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rocketmail.com; s=s1024; t=1417230241; bh=zvzD9gM7hIo2a63eP1cqa4Vy/e9thLU5Fra+iw1RyAk=; h=Date:From:To:Subject:In-Reply-To:References:From:Subject; b=B2DtsrlGUcTi5IskMsfVAo8uypuWBMRmJqMgeqnYMbCCMuijYP5PAywo7mw15fRDtrgmT4mj1uajzvQhAhCHF91H7czg1A2K8IfR1HKPh7K28fg2KiERy4aBDN3j2K3ZRzzRP3O8ixZu4pA7VcE4SP78GIlAWwEWUsWeDBxh6zM= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=rocketmail.com; b=RB2RWES7qYJC5OPS0Tu0S8DfDeCx5BdC5Z+OS38RtS86tiqc3HQB4Cvm/jBO8T2TFACDHfYBPNtkYYfu7qM23eZFCt/LsdP4ivYkVXAAx0yQjyPv2QZ7tqOa71FxmgcGQ0lu06RUSzG8bnQxChEbpfLl0SnlKI9hFuTMaVgkRic=; Received: from [212.82.98.125] by nm1.bullet.mail.ir2.yahoo.com with NNFMP; 29 Nov 2014 03:04:01 -0000 Received: from [46.228.39.107] by tm18.bullet.mail.ir2.yahoo.com with NNFMP; 29 Nov 2014 03:04:01 -0000 Received: from [127.0.0.1] by smtp144.mail.ir2.yahoo.com with NNFMP; 29 Nov 2014 03:04:01 -0000 X-Yahoo-Newman-Id: 411425.12828.bm@smtp144.mail.ir2.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: lSQfMjwVM1mQ23NKg7EX9_UCXxUOlwlwpptrJMgGboGUVZ4 Jcxk3yJHQO6pnA6dWU6MA2WpIFiGQsZ1b2CVYd5cP7Dc6PcFdXNBdf5C8tuw GlVO7ZeyGByJCanCmh4.0deE33XExTM6Kex4HA5WeDknV_oreCHFhaoPjJ11 rxz0MoZo4S4P2f_UnyyH7SulXerK7ab3sg0meW2NbxSo38DcmBepoRpBP6v2 HlsKOFqGWtXMhb26PRcPv2FUbJLEfWqgImSSlcD4miYj7in5qrjdusx6.pws Mz5XJeZfFRY_L_8H7m2FsAUwNkH.63RWQZ1MBz_M5skpF_wdBhdE9h9l5YGt ai1G4l1KyJtBxpoLL.txaDDOJgAjm4HJ8wry7sBMFiAIhVD6R.i8YtF4aSDF xgkyprl.UvddNyKSHRgP4jG3wL4QwmV4NDjIO1IvAKUkeRrI9KadgUbKE.Q7 WbVlTZW1Q9bcA_SulyoexUWyqlYMi9i3b9mTi1qDHN4.93N7_QVoPNc9KHxW TE5F0mvYEj3j_jd.eEkVtPT4Be4ZK X-Yahoo-SMTP: BeMCPs2swBABTJ3kAeEiC_hE0mz8jRexLddJfD8pI2j32fOacjBmXg-- Date: Sat, 29 Nov 2014 04:04:00 +0100 From: Ralf Mardorf To: freebsd-questions@freebsd.org Subject: Re: OT: UPS for FreeBSD Message-ID: <20141129040400.79d7b2a9@archlinux> In-Reply-To: <20141129033422.795c0099@archlinux> References: <54777AB1.9010800@bluerosetech.com> <54779629.302@bluerosetech.com> <5478BD4F.7020306@yahoo.com> <5478BEE6.30308@bluerosetech.com> <5478CC08.9090307@yahoo.com> <20141128204722.561f948e@archlinux> <5478F16A.80605@yahoo.com> <5479260d.SuFIN5ZZAEY4zdyE%perryh@pluto.rain.com> <20141129033422.795c0099@archlinux> X-Mailer: Claws Mail 3.11.1-34-g5c904ff (GTK+ 2.24.25; x86_64-arch-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Nov 2014 03:04:04 -0000 > On Fri, 28 Nov 2014 17:49:01 -0800 > perryh@pluto.rain.com (Perry Hutchison) wrote: > > Chris Hill wrote: > > > On Fri, 28 Nov 2014, Paul Pathiakis via freebsd-questions wrote: > > > > Get this, the main junction breaker, was a piece of bimetallic > > > > chunk of metal 1500 kVA circuit designed to melt upon overload. > > > > *shiver*) > > > > > > I believe that is called a "fuse." > > > > "designed to melt upon overload" is the very definition of a fuse, > > but bimetallic (in the context of overload protection) sounds like > > a thermal circuit breaker. I wonder if the combination may indicate > > that someone is con-fused :) > > A "1500 kVA" bimetallic thermal circuit breaker? PS: We can assume that VA doesn't mean low V * high A, but it likely is high V * high A. Regarding to the much A it must be a big piece of metal and regarding to high V the big piece of metal must bend a lot, to avoid an electric arc. Assumed it isn't a fuse and it is a thermal circuit breaker, I wonder how "fast" the metal bends and what sound is produced when the metal bends. The bimetallic thermal circuit breaker in our dishwashers is for completely different VA.