2023年全國碩士研究生考試考研英語一試題真題（含答案詳解+作文范文）_第1頁
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1、?ISO2013Roadvehicles—Degreesofprotection(IPcode)—ProtectionofelectricalequipmentagainstfeignobjectswateraccessVhiculesroutiers—Degrsdeprotection(codesIP)—Protectiondesquipementslectriquescontrelescpstrangersl’eauetlescon

2、tactsINTERNATIONALSTARDISO20653Secondedition20130215ReferencenumberISO20653:2013(E)ISO20653:2013(E)?ISO2013–AllrightsreservediiiContentsPageFewd............................................................................

3、............................................................................................................................................................ivIntroduction..................................................

4、................................................................................................................................................................................v1Scope.....................................

5、............................................................................................................................................................................................12Nmativereferences.............

6、.........................................................................................................................................................................13Termsdefinitions.................................

7、....................................................................................................................................................14StructuremeaningoftheIPcode...........................................

8、.................................................................................................24.1StructureoftheIPcode...................................................................................................

9、................................................................24.2MeaningofIPcode.........................................................................................................................................

10、......................................24.3ExamplesftheuseoflettersintheIPcode..............................................................................................................35Degreesofprotectionagainstfeign

11、objectsagainstaccess....................................................................46Degreesofprotectionagainstwater...................................................................................................

12、.............................................57Designationexamples..........................................................................................................................................................

13、...........................67.1General......................................................................................................................................................................................

14、.....................67.2ExampleIP34K.......................................................................................................................................................................................

15、.67.3ExampleIP16KB....................................................................................................................................................................................67.4ExampleIP2XIP5KX..

16、.......................................................................................................................................................................78Requirementstesting................................

17、...........................................................................................................................................78.1Atmosphericconditions........................................................

18、..........................................................................................................78.2Deviceundertest(DUT)..........................................................................................

19、.......................................................................78.3Requirementstestsfdegreesofprotectionagainstfeignobjectsaccess............78.4Requirementstestfdegreesofprotectionagainstwater...................

20、............................................139Notesontheassignmentofdegreesofprotection.........................................................................................................149.1Assignmentofdegreesofp

21、rotectionagainstfeignobjectsaccess.........................................149.2Assignmentofdegreesofprotectionagainstwater............................................................................................14Bib

22、liography...................................................................................................................................................................................................................

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