JIS G3127-2005 低温设备压力容器用镍钢板
作者:标准资料网 时间:2024-05-29 14:41:35 浏览:8755
来源:标准资料网
【英文标准名称】:Nickelsteelplatesforpressurevesselsforlowtemperatureservices
【原文标准名称】:低温设备压力容器用镍钢板
【标准号】:JISG3127-2005
【标准状态】:现行
【国别】:日本
【发布日期】:2005-07-20
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonIronandSteel
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:この規格は,低温で使用する圧力容器及び設備に用いる熱間圧延ニッケル鋼鋼板(以下,鋼板という。)について規定する。
【中国标准分类号】:H46
【国际标准分类号】:77_140_30;77_140_50
【页数】:14P;A4
【正文语种】:日语
【英文标准名称】:Dry,solidinsulatingmaterials-Resistancetesttohigh-voltage,lowcurrentarcdischarges
【原文标准名称】:干燥实心绝缘材料耐高压低电流电弧放电的试验
【标准号】:IEC61621-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-09
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC112
【标准类型】:()
【标准水平】:()
【中文主题词】:高电压;电气工程;绝缘;耐力;定义;试验;绝缘材料;电流;耐高压试验;电弧;耐电弧;电绝缘材料;电压
【英文主题词】:Arcresistance;Currents;Definitions;Electricarcs;Electricalengineering;Electricalinsulatingmaterials;Highvoltage;High-voltagetests;Insulatingmaterials;Insulations;Resistance;Testing;Voltage
【摘要】:ThisInternationalStandarddescribesatestmethodwhichcanprovidepreliminarydifferentiationbetweensimilarinsulatingmaterials,withrespecttotheirresistancetodamagewhenexposedtohigh-voltage,low-currentarcdischarges,occurringclosetotheirsurfaces.Thedischargescauselocalizedthermalandchemicaldecompositionanderosionandeventuallyaconductivepathformsacrosstheinsulatingmaterial.Theseverityofthetestconditionsisgraduallyincreased:intheearlystagesalow-currentarcdischargeisrepeatedlyinterrupted,whereasinthelaterstages,thearccurrentisraisedinsuccessivesteps.Becauseofitsconvenienceandbecauseoftheshorttimerequiredfortesting,thetestmethodisapplicableforpreliminaryscreeningofmaterials,fordetectingtheeffectsofchangesinformulationandforqualitycontroltesting.Previousexperiencewiththistest,showedacceptablereproducibilitywiththermosetmaterials.Usingthermoplastics,sometestinglaboratoriesreportunacceptablylargevariationintestresultswhichleadtotherecommendationnottousethetestforthermoplastics.NOTE-Attemptsarebeingmadetoreducethevariabilityoftheresultsoftestsonthermoplasticsbycontrollingtheelectrodepressureanddepthofpenetrationintothematerialduringthetest.Withoutsuchelectrodecontrol,testsonmanythermoplasticsmaynotbesufficientlymeaningfultobeperformed.Thistestmethodwillnot,ingeneral,permitconclusionstobedrawnconcerningtherelativearcresistancerankingsofmaterialswhichmaybesubjectedtoothertypesofarcs.Therankingofmaterialsmaydifferfromthatfoundinwettrackingtests(e.g.IEC60112,IEC60587andIEC61302)andfromtheirperformanceinservice,wheretheintensity,recurrencefrequencyandtimeofexposuretoarcdischargesareverydifferent.
【中国标准分类号】:K15
【国际标准分类号】:29_035_01
【页数】:25P.;A4
【正文语种】:英语
MIL-DTL-18240F, DETAIL SPECIFICATION: FASTENER ELEMENT, SELF-LOCKING, THREADED FASTENER, 250 DEG. F MAXIMUM (02 JUN 1997) [SUPERSEDING MIL-F-18240E]., This specification defines the requirements for self-locking elements for use in externally threaded fasteners such as bolts and screws to be used in fasteners with either UNC, UNJC, UNF, UNJF, UNRC or UNRF threads and where the temperatures will not exceed 250 deg. F.
