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Article #873Re: An unusual Oscilloscope phenomenon
From: terryc
Date: Tue, 07 Jul 2009 12:17
Date: Tue, 07 Jul 2009 12:17
49 lines
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2960 bytes
On Mon, 06 Jul 2009 17:38:19 -0700, Joerg wrote: > terryc wrote: >> On Mon, 06 Jul 2009 12:05:37 -0700, Joerg wrote: >> >> >> >>> In a welding environment 800V may not be good enough. >> >> Which "welding" environments did you have in mind? >> >> > The usual. >100 amps, electrodes touching, arcing, getting stuck once in > a while, thick cables floating around the room, ground potential of > equipment bouncing, and so on. I once told someone to get his ham radio > gear out before we start welding a broken gate. "Nah, this stuff is > tough" ... "Better get it outta here" ... "No, really, it's ok, just get > cracking on the gate" ... "Ok then" ... bzzt, bzzt, bzzzzzzzzzzt ... > beep ... *PHUT* Umm, have you ever put a volt meter across the cables? I was under the impression that that stuff matched the telephone and was in the vicinity of 40volts. I politely suggest that if it was around 800volts, then black and crispy would be a welder who made the wrong circuit. Hint, it is the current that causes the field. -- Great advances in Debian Linux; post a bug report and get spam in three days. -- Great advances in Debian Linux; post a bug report and get spam in three days.
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X-Google-Thread: a5a6238865,2fb4482ba391e6 X-Google-Attributes: gida5a6238865,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news2.google.com!news2.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!newsfeed00.sul.t-online.de!t-online.de!tiscali!newsfeed1.ip.tiscali.net!195.208.113.2.MISMATCH!goblin2!goblin3!goblin.stu.neva.ru!exi-transit.telstra.net!203.50.40.42.MISMATCH!news.telstra.net!pit-spool.telstra.net!reader.news.telstra.net!not-for-mail From: terryc <newssevenspam-spam@woa.com.au> Subject: Re: An unusual Oscilloscope phenomenon Newsgroups: sci.electronics.design,aus.electronics References: <h8B0m.53620$FI5.3564@newsfe12.iad> <C5D0m.1651$vO4.300@flpi145.ffdc.sbc.com> <n41645hvv4ia1uqa1cnbriilvg4vg1td2a@4ax.com> <z_udncS2Q9vvJd7XnZ2dnUVZ_odi4p2d@supernews.com> <u4k745pit2pm2qep1k9apmcgda9ugb1uqe@4ax.com> <pan.2009.06.30.18.25.22.512231@example.net> <q2lk45pnpbb3esgo2bi6pp2f85p977qbjb@4ax.com> <7av4ckF2168qeU4@mid.individual.net> <sjnk459n6lgmicl8c1dflfutbghqp20tfp@4ax.com> <4a4bab66.2595149687@news.planet.nl> <7b1sftF1sbgmcU1@mid.individual.net> <4a4bdde5.2608076625@news.planet.nl> <7b2an2F1vorf3U1@mid.individual.net> <4a4e83ad.2781589312@news.planet.nl> <7bf082F232f2kU1@mid.individual.net> <4a527fd4$0$68552$c30e37c6@pit-reader.telstra.net> <7bfjnvF22lu8vU1@mid.individual.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Date: 07 Jul 2009 12:17:18 GMT Lines: 51 Message-ID: <4a533ccd$0$68552$c30e37c6@pit-reader.telstra.net> NNTP-Posting-Host: 220.233.13.149 X-Trace: 1246969038 pit-reader.telstra.net 68552 220.233.13.149:32870