Bill, Thanks, I see the distinction now. I guess they decided to be crystal clear by adding "distance" to the clearance. Surprisingly, though I had thought of clearance as being a self-evident term referring to the distance between two objects/etc, it ranks only third in the definition list I just found at Answers.com and a couple other online dictionaries, past "A space cleared; a clearing" and before (abr) "authorization"...
Thank goodness I just checked Wiki, where sure enough, (whew!) first on the list is "in engineering and safety, (Clearance is) a physical distance or space tolerance, as in a truck (lorry), train or boat under a bridge as well as a train in a tunnel (see structure gauge and loading gauge)" Personally, I still think it's a self-evident term when used in this venue, due to its connotative nature (we are in an engineering arena after all) and we're neither talking about our ability to work on black projects nor the freakishly expensive, "loverly", tres chic shoes our girlfriend wants to buy at the after Christmas sale, but I suppose I can grudgingly concede the overly clarified phrasing in the UL reference. IMO it's clumsy English, but infinitely less annoying than "A apple" or "I acksed a question" Hey, Wam, that's the difference. Me, I would just say clearance and be done with it. (In fact, on a bad, day, though it's highly doubtful such a circumstance would ever present itself to such a gentle and diplomatic soul as moi, I might possibly maybe even give someone a hard time for using the word distance with it...nah ;) A lawyer, on the other hand, gets REALLY specific. Regards, aj "If you wish to know the mind of a man, listen to his words." -- Chinese Proverb >-----Original Message----- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] On Behalf Of Brooks,Bill >Sent: Thursday, December 14, 2006 5:38 PM >To: 'Protel EDA Discussion List' >Subject: Re: [PEDA] 500V power supply > >See how UL uses the terms at this website and get their direct >interpretation of the terms clearance and creepage... > >http://www.ul.com/ul508pag/50808.htm > > > >Bill Brooks This e-mail transmission and its attachments may contain information from Avtron Manufacturing, Inc. that is proprietary, privileged and/or confidential and is intended exclusively for the person(s) to whom it is addressed. Any use, copying, retention or disclosure by any person other than the intended recipient or the intended recipient's designees is strictly prohibited. If you have received this message in error, please notify the sender immediately by return e-mail and delete all copies. ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[email protected] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected]
