GB 5023.5-1997 额定电压450/750V及以下聚氯乙烯绝缘电缆 第5部分: 软电缆(软线)
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来源:标准资料网
基本信息
标准名称: | 额定电压450/750V及以下聚氯乙烯绝缘电缆 第5部分: 软电缆(软线) |
英文名称: | Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V-Part 5: Flexible cables (cords) |
中标分类: |
电工 >>
电工材料和通用零件 >>
电缆及其附件 |
ICS分类: |
电气工程 >>
电线和电缆
|
替代情况: | 替代GB 5023.3-1985;被GB/T 5023.5-2008代替 |
发布部门: | 国家技术监督局 |
发布日期: | 1997-07-03 |
实施日期: | 1998-09-01 |
首发日期: | 1986-11-27 |
作废日期: | 2009-05-01 |
主管部门: | 中国电器工业协会 |
归口单位: | 全国电线电缆标准化技术委员会 |
起草单位: | 机械工业部上海电缆研究所 |
出版社: | 中国标准出版社 |
出版日期: | 1998-09-01 |
页数: | 11页 |
适用范围
本部分详细规定额定电压300/500V及以下聚氯乙烯软电缆(软线)的技术要求。所有电缆均应符合GB 5023.1规定的相应要求,并且各种型号电缆应分别符合本部分规定的特殊要求。
前言
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目录
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引用标准
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所属分类: 电工 电工材料和通用零件 电缆及其附件 电气工程 电线和电缆
【英文标准名称】:UseofMattsson'sSolutionofpH7.2toEvaluatetheStress-CorrosionCrackingSusceptibilityofCopper-ZincAlloys
【原文标准名称】:用pH值为7.2的玛特松(mattsson's)溶液评定铜锌合金的应力腐蚀断裂灵敏性
【标准号】:ASTMG37-1990
【标准状态】:作废
【国别】:美国
【发布日期】:1990
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:磨损;评定;合金;试验;工艺;金属;溶液;使用;铜;腐蚀;耐腐蚀性;锌
【英文主题词】:alloys;copper;susceptibility;usage;zinc;wear;corrosionresistance;evaluations;processes;corrosion;metals;testing;solutions
【摘要】:
【中国标准分类号】:H25
【国际标准分类号】:77_060
【页数】:3P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforAdhesionStrengthandMechanicalFailureModesofCeramicCoatingsbyQuantitativeSinglePointScratchTesting
【原文标准名称】:用定量单点划痕试验测定陶瓷涂层粘结强度和机械损坏类型的标准试验方法
【标准号】:ASTMC1624-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C28.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:划痕;覆层;试验;处理;损坏类型;粘附;陶瓷涂层;旋具头;单;损坏;定量的;机械的
【英文主题词】:adhesiontest;ceramiccoating;criticalscratchload;hardcoatings;scratchadhesion;scratchtest
【摘要】:1.1Thistestmethodcoversthedeterminationofthepracticaladhesionstrengthandmechanicalfailuremodesofhard(VickersHardnessHV=5GPaorhigher),thin(8804;30956;m)ceramiccoatingsonmetalandceramicsubstratesatambienttemperatures.Theseceramiccoatingsarecommonlyusedforwear/abrasionresistance,oxidationprotection,andfunctional(optical,magnetic,electronic,biological)performanceimprovement.1.2Inthetestmethod,adiamondstylusofdefinedgeometry(RockwellC,aconicaldiamondindenterwithanincludedangleof120176;andasphericaltipradiusof200956;m)isdrawnacrosstheflatsurfaceofacoatedtestspecimenataconstantspeedandadefinednormalforce(constantorprogressivelyincreasing)foradefineddistance.Thedamagealongthescratchtrackismicroscopicallyassessedasafunctionoftheappliedforce.Specificlevelsofprogressivedamageareassociatedwithincreasingnormalstylusforces.Theforcelevel(s)whichproduceaspecifictype/levelofdamageinthecoatingaredefinedasacriticalscratchload(s).Thetestmethodalsodescribestheuseoftangentialforceandacousticemissionsignalsassecondarytestdatatoidentifydifferentcoatingdamagelevels.1.3ApplicabilitytoCoatings8212;Thistestmethodisapplicabletoawiderangeofhardceramiccoatingcompositions:carbides,nitrides,oxides,diamond,anddiamond-likecarbononceramicandmetalsubstrates.Thetestmethod,asdefinedwiththe200956;mradiusdiamondstylus,iscommonlyusedforcoatingthicknessesintherangeof0.1to30956;m.Testspecimensgenerallyhaveaplanarsurfacefortesting,butcylindergeometriescanalsobetestedwithanappropriatefixture.1.4PrincipalLimitations:1.4.1Thetestmethoddoesnotmeasurethefundamentaladhesionstrengthofthebondbetweenthecoatingandthesubstrate.Rather,thetestmethodgivesanengineeringmeasurementofthepractical(extrinsic)adhesionstrengthofacoating-substratesystem,whichdependsonthecomplexinteractionofthetestparameters(styluspropertiesandgeometry,loadingrate,displacementrate,andsoforth)andthecoating/substrateproperties(hardness,fracturestrength,modulusofelasticity,damagemechanisms,microstructure,flawpopulation,surfaceroughness,andsoforth).1.4.2Thedefinedtestmethodisnotdirectlyapplicabletometalorpolymericcoatingswhichfailinaductile,plasticmanner,becauseplasticdeformationmechanismsareverydifferentthanthebrittledamagemodesandfeaturesobservedinhardceramiccoatings.Thetestmethodmaybeapplicabletohardmetalcoatingswhichfailinabrittlemodewithappropriatechangesintestparametersanddamageanalysisproceduresandcriteria.1.4.3Thetestmethod,asdefinedwiththeRockwellCdiamondstylusandspecificnormalforceandrateparameters,isnotrecommendedforverythin(30956;m).Suchcoatingsmayrequiredifferentstylusgeometries,loadingrates,andrangesofappliednormalforceforusable,accurate,repeatableresults.1.4.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.TestdatavaluesinSIunits(newtons(N)forforceandmillimetres(mm)fordisplacement)aretobeconsideredasstandardandareinaccordancewithIEEE/ASTMSI10.1.4.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:25_220_99
【页数】:28P.;A4
【正文语种】: