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Article #1071Re: Why do power plugs have holes in the ends
From: Derek R. Foster
Date: Fri, 20 Nov 1992 19:43
Date: Fri, 20 Nov 1992 19:43
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In article <1edfvqINNrv8@gap.caltech.edu> carl@SOL1.GPS.CALTECH.EDU writes: >= >=Ahh, but the *real* question is why the prongs have holes in the tips... > I have seen at least one kind of extension-cord plug end in which the plug which plugged into the receptacle was held in place by something inside the receptacle, and would not come out unless you pressed some buttons on the side of the receptacle at the same time as you pulled the plug out. I'm sure that the holes in the prongs were used to accomplish this. (so, for example, if you have a computer plug that runs across the floor, you can be sure that it won't be accidentally unplugged by someone who trips over it. What happens to the person, of course, is less important :-).
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Newsgroups: alt.folklore.science Path: arc1-ca.pugleaf.net!sparky!uunet!news.claremont.edu!jarthur.claremont.edu!dfoster From: dfoster@jarthur.claremont.edu (Derek R. Foster) Subject: Re: Why do power plugs have holes in the ends Message-ID: <1992Nov20.194359.24521@muddcs.claremont.edu> Sender: news@muddcs.claremont.edu (The News System) Organization: Harvey Mudd College, Claremont, CA 91711 References: <BxvKLE.1Fo@javelin.sim.es.com> <1992Nov18.033022.4518@bbxrbk> <1edfvqINNrv8@gap.caltech.edu> Date: Fri, 20 Nov 1992 19:43:59 GMT Lines: 17