您的位置: 标准下载 » 国际标准 » BS 英国标准 »

BS 9520-1983 经质量评定的直流和低频用途电连接器:一般数据、试验方法和性能鉴定程序

作者:标准资料网 时间:2024-05-13 13:01:31  浏览:9706   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Specificationforelectricalconnectorsofassessedqualityford.c.andlowfrequencyapplication:genericdata,methodsoftestandcapabilityapprovalprocedures
【原文标准名称】:经质量评定的直流和低频用途电连接器:一般数据、试验方法和性能鉴定程序
【标准号】:BS9520-1983
【标准状态】:现行
【国别】:英国
【发布日期】:1983-02-28
【实施或试行日期】:1983-02-28
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:电气元件;尺寸;射频;直流电流;飞行器部件;规范(验收);额定值;能力鉴定;试验条件;机械试验;资格鉴定;电缆;认可试验;详细规范;试样制备;试验设备;电子设备及元件;电连接器;符号;工作环境;低频;振动试验;电路;防尘试验;热循环试验;图纸;电学测量;字母(符号);图解表示法;燃烧试验;评估的质量;检验;质量保证体系;耐化学性试验;作标记;环境试验;电气试验;耐久试验
【英文主题词】:Aircraftcomponents;Approvaltesting;Assessedquality;Capabilityapproval;Chemical-resistancetests;Circuits;Detailspecification;Dimensions;Directcurrent;Drawings;Dust-tightnesstests;Electriccables;Electricconnectors;Electricalcomponents;Electricalmeasurement;Electricaltesting;Electronicequipmentandcomponents;Endurancetesting;Environment(working);Environmentaltesting;Firetests;Graphicrepresentation;Inspection;Letters(symbols);Lowfrequencies;Marking;Mechanicaltesting;Qualificationapproval;Qualityassurancesystems;Radiofrequencies;Ratings;Specification(approval);Specimenpreparation;Symbols;Testequipment;Testingconditions;Thermal-cyclingtests;Vibrationtesting
【摘要】:Appliestoconnectorsintendedprimarilyforuseontelecommunicationandalliedelectronicequipment,prescribesmandatoryrequirementsrelatingtoterminologyanddefinitions,testprocedures,inspectionproceduresandgeneraldata.Alsogivesgeneralrulesforthepreparationofdetailspecifications.
【中国标准分类号】:L23
【国际标准分类号】:31_220_10
【页数】:92P;A4
【正文语种】:英语


下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforRelativeResistancetoVentedWater-TreeGrowthinSolidDielectricInsulatingMaterials
【原文标准名称】:固体介电绝缘材料对应通气孔水柱上升的电阻力的标准试验方法
【标准号】:ASTMD6097-2001a(2008)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【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】:D09.12
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:electricalbreakdown;soliddielectrics;treeing;water-treeing;Dielectricapplications;Electricalbreakdown;Extrudedpolymericinsulation;Soliddielectrics;Solidnon-blackthermoplastic/crosslinkedelectricalinsulation;Treeing;Ventedwater-treeg
【摘要】:Thisisalaboratorytestdesignedtosimulatethegrowthofventedwater-treesinthesoliddielectricinsulatingmaterialinitiatedbyasharpprotrusionattheinsulatingandconductiveinterfaceunderawetenvironmentinahighelectricalfield.Water-treeingisthephenomenonwhichdescribestheappearanceoftree-likegrowthinorganicdielectricsunderanacfieldwhenexposedtomoistenvironments.Twotypesofwater-treesareformed.Bowtietrees(withinthedielectric)andventedwater-treesformedfromconductive/insulatingmaterialinterfaceintotheinsulatingmaterial.Thewater-treesreferredtointhistestmethodaretheventedtype.Theinsulatingmaterialisthesoliddielectricorganicmaterial.Theconductivematerialisthesaltsolution.Thissaltsolutionisusedonbothsidesoftheinsulatingmaterialtosimulatethesameinnerandoutersemiconductiveshieldssaturatedwithmoisturebetweentheinsulationlayerusedinamedium-voltageundergroundpowercable.Thistestmethodprovidescomparativedata.Thedegreeofcorrelationwiththeperformanceinservicehasnotbeenestablished.Thestandardtestconditionsaredesignedtogrowasufficientwater-treelengthformostsoliddielectricinsulatingmaterialsofinterestbeforeelectricalbreakdownoccurs.Materialswithaveryhighresistancetowater-treegrowthmayrequirealongertimeundertestconditions(suchas180days)orhighervoltage(suchas10or15kV)inordertodifferentiatetheirperformance.Formaterialswithaverylowresistancetowater-treegrowth,electricalbreakdownmayoccurduringthe30-daytestingtime.Ashortertestingtime(suchasoneortendays)isrecommendedtopreventelectricalbreakdownduringtestingforthoselowwater-treeresistantmaterials.Othervoltages,frequencies,temperatures,aqueoussolutions,anddefectscanbeusedtoevaluatespecificmaterialsforspecificapplications.Temperaturesshouldnotexceedthesofteningormeltingpointofthematerialor10to15x00B0;Cbelowtheboilingpointofthesaltsolution.Anynonstandardconditionsshouldbereportedalongwiththeresults.Tree-growthratesgenerallyincreasewiththetestfrequency.Anaccelerationfactorduetofrequencyisgivenby(f/60)kwherefisthetestfrequencyandkisbetween0.6and0.7.Thetestfrequencyof1kHzisselectedtoacceleratethewater-treegrowth.However,thechemicalnatureofoxidizedproductsfromwater-treeingmaybedifferentatdifferentfrequencyranges.Twoassumptionsforthistestmethodare:(1)alltestedmaterialsgrowtreesinthesamepowerlawkineticmannerand(2)thetimeundertestconditionsof30daysislongenoughtoestablishthedifferenceinwater-treegrowth.Ifthereisadoubt,atleastthreedifferenttestingtimes(suchas30,90,and180days)shouldbeusedtoverifytheircomparativeperformanceanddisclosetheirkineticnatureofwater-treegrowth.Ofcourse,itisalsoassumedthatallwater-treedregionsareoxidizedregionsthatcanbestainedforopticalobservation.Differentmaterialsmayalsohavedifferenttemperaturesandtimestostaintheoxidized(treed)regionsduetotheirdifferentsofteningtemperature.1.1Thistestmethodcoverstherelativeresistancetoventedwater-treegrowthinsolidtranslucentthermoplasticorcross-linkedelectricalinsulatingmaterials.Thistestmethodisespeciallyapplicabletoextrudedpolymericinsulationmaterialsusedinmedium-voltagecables.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.【英文标准名称】:Productsusedfortreatmentofwaterintendedforhumanconsumption-Anthracite.
【原文标准名称】:人类生活用水处理用制品.无烟煤
【标准号】:NFT94-413-1999
【标准状态】:作废
【国别】:法国
【发布日期】:1999-12-01
【实施或试行日期】:1999-12-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:物理性能;试验;给水;饮用水;化学性质;水处理;水常规;水;过滤性能;无烟煤;水净化;饮用水处理;过滤材料
【英文主题词】:
【摘要】:
【中国标准分类号】:G77
【国际标准分类号】:71_100_80
【页数】:13P;A4
【正文语种】:其他