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Article #19444Re: WHat are those holes for?
From: Howard F. Steel
Date: Mon, 18 Jul 1988 12:12
Date: Mon, 18 Jul 1988 12:12
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In article <10790@oberon.USC.EDU>, robiner@ganelon.usc.edu (Steve) writes: > > Why do standard electrical plugs have holes in the metal prongs? The holes serve (or served) as detents for the mating ends. A small knob on the mating surface of the outlet notched into the hole to make accidental removal less likely (especially after the socket has aged and worn a bit). -- Howard FP Steel :-( I Think, Therefore, I Am aka: "The Duck" :-) I Think
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arc1-ca.pugleaf.net!utzoo!attcan!uunet!husc6!bloom-beacon!gatech!mcnc!ece-csc!ncrcae!ncr-sd!ncrlnk!ncrwat!swdev!tp2!howardReferences:
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!husc6!bloom-beacon!gatech!mcnc!ece-csc!ncrcae!ncr-sd!ncrlnk!ncrwat!swdev!tp2!howard From: howard@tp2.Waterloo.NCR.COM (Howard F. Steel) Newsgroups: sci.electronics Subject: Re: WHat are those holes for? Summary: Safety... Message-ID: <187@tp2.Waterloo.NCR.COM> Date: 18 Jul 88 12:12:12 GMT References: <10790@oberon.USC.EDU> Organization: NCR Canada Ltd., Waterloo, Ont, Canada Lines: 11