NEMAvsIP-美国NEMA标准-和ISO-IP-绝缘等级对照表

1、CertifiGroupInc919-466-9238May2003Page1of6NEMAEnclosureTypes&IPCodesThepurposeofthisdocumentistoprovidegeneralinformationonthedefinitionsofNEMAEnclosureTypestoarchitects,engineers,installers,inspectorsandotherinterestedparties.ImportantNote:NEMARatingsaremaintainedthroughtestingandcertification.CorrelationtotheIPratingsdoesnotconfirmtheIPcodeassignedonaproductorenclosurehasbeentestedorisunderacertificationprogram.Definitions[fromNEMA250-1997]InNon-HazardousLocations,thespecificenclosureTypes,th。

2、eirapplications,andtheenvironmentalconditionstheyaredesignedtoprotectagainst,whencompletelyandproperlyinstalled,areasfollows:Type1-Enclosuresconstructedforindoorusetoprovideadegreeofprotectiontopersonnelagainstincidentalcontactwiththeenclosedequipmentandtoprovideadegreeofprotectionagainstfallingdirt.Type2-Enclosuresconstructedforindoorusetoprovideadegreeofprotectiontopersonnelagainstincidentalcontactwiththeenclosedequipment,toprovideadegreeofprotectionagainstfallingdirt,andtoprovideadegreeofprot。

3、ectionagainstdrippingandlightsplashingofliquids.Type3-Enclosuresconstructedforeitherindoororoutdoorusetoprovideadegreeofprotectiontopersonnelagainstincidentalcontactwiththeenclosedequipment;toprovideadegreeofprotectionagainstfallingdirt,rain,sleet,snow,andwindblowndust;andthatwillbeundamagedbytheexternalformationoficeontheenclosure.Type3R-Enclosuresconstructedforeitherindoororoutdoorusetoprovideadegreeofprotectiontopersonnelagainstincidentalcontactwiththeenclosedequipment;toprovideadegreeofprote。

4、ctionagainstfallingdirt,rain,sleet,andsnow;andthatwillbeundamagedbytheexternalformationoficeontheenclosure.Type3S-Enclosuresconstructedforeitherindoororoutdoorusetoprovideadegreeofprotectiontopersonnelagainstincidentalcontactwiththeenclosedequipment;toprovideadegreeofprotectionagainstfallingdirt,rain,sleet,snow,andwindblowndust;andinwhichtheexternalmechanism(s)remainoperablewheniceladen.NEMA/IECCorrelationCertifiGroupInc919-466-9238May2003Page2of6Type4-Enclosuresconstructedforeitherindoororoutdo。

5、orusetoprovideadegreeofprotectiontopersonnelagainstincidentalcontactwiththeenclosedequipment;toprovideadegreeofprotectionagainstfallingdirt,rain,sleet,snow,windblowndust,splashingwater,andhose-directedwater;andthatwillbeundamagedbytheexternalformationoficeontheenclosure.Type4X-Enclosuresconstructedforeitherindoororoutdoorusetoprovideadegreeofprotectiontopersonnelagainstincidentalcontactwiththeenclosedequipment;toprovideadegreeofprotectionagainstfallingdirt,rain,sleet,snow,windblowndust,splashing。

6、water,hose-directedwater,andcorrosion;andthatwillbeundamagedbytheexternalformationoficeontheenclosure.Type5-Enclosuresconstructedforindoorusetoprovideadegreeofprotectiontopersonnelagainstincidentalcontactwiththeenclosedequipment;toprovideadegreeofprotectionagainstfallingdirt;againstsettlingairbornedust,lint,fibers,andflyings;andtoprovideadegreeofprotectionagainstdrippingandlightsplashingofliquids.Type6-Enclosuresconstructedforeitherindoororoutdoorusetoprovideadegreeofprotectiontopersonnelagainst。

7、incidentalcontactwiththeenclosedequipment;toprovideadegreeofprotectionagainstfallingdirt;againsthose-directedwaterandtheentryofwaterduringoccasionaltemporarysubmersionatalimiteddepth;andthatwillbeundamagedbytheexternalformationoficeontheenclosure.Type6P-Enclosuresconstructedforeitherindoororoutdoorusetoprovideadegreeofprotectiontopersonnelagainstincidentalcontactwiththeenclosedequipment;toprovideadegreeofprotectionagainstfallingdirt;againsthose-directedwaterandtheentryofwaterduringprolongedsubme。

8、rsionatalimiteddepth;andthatwillbeundamagedbytheexternalformationoficeontheenclosure.Type12-Enclosuresconstructed(withoutknockouts)forindoorusetoprovideadegreeofprotectiontopersonnelagainstincidentalcontactwiththeenclosedequipment;toprovideadegreeofprotectionagainstfallingdirt;againstcirculatingdust,lint,fibers,andflyings;andagainstdrippingandlightsplashingofliquids.Type12K-Enclosuresconstructed(withknockouts)forindoorusetoprovideadegreeofprotectiontopersonnelagainstincidentalcontactwiththeenclo。

9、sedequipment;toprovideadegreeofprotectionagainstfallingdirt;againstcirculatingdust,lint,fibers,andflyings;andagainstdrippingandlightsplashingofliquids.Type13-Enclosuresconstructedforindoorusetoprovideadegreeofprotectiontopersonnelagainstincidentalcontactwiththeenclosedequipment;toprovideadegreeofprotectionagainstfallingdirt;againstcirculatingdust,lint,fibers,andflyings;andagainstthespraying,splashing,andseepageofwater,oil,andnoncorrosivecoolants.NEMA/IECCorrelationCertifiGroupInc919-466-9238May2。

10、003Page3of6Table2-1[FromNEMA250-1997]ComparisonofSpecificApplicationsofEnclosuresforIndoorNonhazardousLocationsTypeofEnclosureProvidesaDegreeofProtectionAgainsttheFollowingEnvironmentalConditions1*2*44X566P1212K13IncidentalcontactwiththeenclosedequipmentXXXXXXXXXXFallingdirtXXXXXXXXXXFallingliquidsandlightsplashing...XXXXXXXXXCirculatingdust,lint,fibers,andflyings**......XX...XXXXXSettlingairbornedust,lint,fibers,andflyings**......XXXXXXXXHosedownandsplashingwater......XX...XX.........Oilandcoola。