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Article #1607Re: Understanding a split-mode power supply.
From: legg
Date: Mon, 05 Jan 2009 02:34
Date: Mon, 05 Jan 2009 02:34
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2859 bytes
On Mon, 05 Jan 2009 09:28:54 +1100, Sylvia Else <sylvia@not.at.this.address> wrote: >Phil Allison wrote: >> "No legg to stand on " >> >>> This assembly was designed to fail in a safe manner - no fire, >>> explosion or shock hazard was intended to result from a single fault >>> resulting in the fusing of the emitter resistor. However, this does >>> not mean that the repaired unit will meet the same standards. The >>> events that occurred may have affected the safety isolation of >>> magnetic isolators in such a way that a second similar event may not >>> be as benign. >> >> >> >> ** Jesus Christ - >> >> get fucking real you asinine fucking WOG WANKER !! >> >> The WHOLE damn AC unit is metal encased, installed & MAINS earthed >> !!!! > >Leaving aside the abuse, I confess this was my sentiment as well. And >not only that, neither the outside nor inside units even get touched in >the normal way of things. > >The entire board could go up in flames, if it were inflammable, and >still cause nothing more than a bad smell. Since it's outside even the >resulting fumes wouldn't be a threat. > >Sylvia. I see that specific poster's dialog in your response, only. His actual postings get filtered autiomatically here. The unit is unlikely to go up in flames, for good reasons. As a technician, you'd be advised to follow industry standards in repair of any line-isolating assembly. One doesn't always know the n'th reason why something was done. A hipot is not impossible to arrange, locally, if you don't have the equipment yourself. RL
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X-Google-Thread: 112d1e,3f5de0c6e381c3d6 X-Google-Thread: 1131b0,3f5de0c6e381c3d6 X-Google-Thread: 103407,3f5de0c6e381c3d6 X-Google-Attributes: gid112d1e,gid1131b0,gid103407,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!news1.google.com!npeer03.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!post02.iad.highwinds-media.com!PRIMUS.CA-a2nVz4C4Vq3uM!not-for-mail From: legg <legg@nospam.magma.ca> Newsgroups: sci.electronics.design,sci.electronics.repair,aus.electronics Subject: Re: Understanding a split-mode power supply. Date: Sun, 04 Jan 2009 21:34:28 -0500 Message-ID: <e1s2m45i5fs7lapv7dmjuargom8mv3tbc2@4ax.com> References: <49601fcc$0$26314$afc38c87@news.optusnet.com.au> <qaa0m4poq9ppo2l7prp91o9bmko9s0mj96@4ax.com> <49602fd0$0$26849$afc38c87@news.optusnet.com.au> <rpe1m410f1srnjirgihrdnb9nsj52d27d5@4ax.com> <6sbtutF573dnU1@mid.individual.net> <49613826$0$19954$afc38c87@news.optusnet.com.au> X-Newsreader: Forte Agent 4.1/32.1088 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Complaints-To: abuse@usenetserver.com Organization: UseNetServer.com Lines: 46 X-Trace: 783c649617189e5bf318312651