12:04 Mar 31, 2004 |
English language (monolingual) [PRO] Tech/Engineering - Electronics / Elect Eng | |||||||
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| Selected response from: Tony M France Local time: 00:18 | ||||||
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SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
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4 +1 | No, Elena... |
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3 +1 | in negative mode the switch would shut the NC contacts |
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Discussion entries: 1 | |
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in negative mode the switch would shut the NC contacts Explanation: :) |
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No, Elena... Explanation: ...your suggestion is not correct. It seems to be meaning that opening the guard must actively operate the switch contacts, rather than merely release them (as would be simpler to achieve). In other words, rather than opening of the guard simply allowing the switch to spring into its 'open' position, the movement of the guard must actually operate (presumably, push) the switch --- more difficult to achieve in mechanical terms, but bringing added safety of operation. In the specific case given, Clauwolf's answer is not incorrect, but I interpret this as going further than simply the SENSE in which [= which way round] the switch is mounted, but actually the way it is being operated -------------------------------------------------- Note added at 2 hrs 40 mins (2004-03-31 14:44:18 GMT) -------------------------------------------------- In answer to your added note, Elena --- no, I don\'t think it makes any difference; in that case, the \'positively\' is referring to the design/construction of the contact/switch itself, and not to the way it is mounted. |
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