热门站点| 世界资料网 | 专利资料网 | 世界资料网论坛
收藏本站| 设为首页| 首页

BS EN 13941-2003 区域供暖用预隔热连接管道系统的设计和安装

作者:标准资料网 时间:2024-05-26 16:54:21  浏览:9648   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Designandinstallationofpreinsulatedbondedpipesystemsfordistrictheating
【原文标准名称】:区域供暖用预隔热连接管道系统的设计和安装
【标准号】:BSEN13941-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-04-02
【实施或试行日期】:2003-04-02
【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】:组合套管;组合管;定义;设计;长距离加热;区域供暖;热水供应链;装置;套管;管绝缘层;长距离供热系统;管系统;管线;管道工程管系统;规范(验收);钢管;隔热;地下;水管系统;水管
【英文主题词】:Compositejacketpipes;Compositetubes;Definitions;Design;Distantheating;Districtheating;Hotwaternetworks;Installations;Jackettubes;Laggingofadrum;Longdistanceheatingsystems;Pipesystem;Pipelines;Pipeworksystems;Specification(approval);Steelpipes;Thermalinsulation;Underground;Waterpipesystems;Waterpipes
【摘要】:ThisEuropeanStandardspecifiesrulesfordesign,calculationandinstallationforpreinsulatedbondedpipesystemsforburiedhotwaterdistributionandtransmissionnetworks,see.Figure2,withpipeassembliesinaccordancewithEN253,forcontinuousoperationwithhotwateratvarioustemperaturesupto120℃andoccasionallywithpeaktemperaturesupto140℃andmaximuminternalpressure25bar(overpressure).Applicationrule:Forlargerpipedimensionsandpressuresbelow25barwallthicknessbiggerthanspecifiedinEN253canberequiredforstraightpipes,bendsandtees.Theprinciplesofthestandardcanbeappliedtopreinsulatedpipesystemswithpressureshigherthan25bar,providedthatspecialattentionispaidtotheeffectsofpressure.Adjacentpipesbelongingtothenetwork(e.g.pipesinducts,valvechambers,roadcrossingsabovegroundetc.)canbedesignedandinstalledaccordingtothisstandard.Thestandardassumesuseoftreatedwater,whichbysoftening,demineralisation,deaeration,addingofchemicals,orotherwisehasbeentreatedtopreventinternalcorrosionanddepositsinthepipes.Thisstandardisnotapplicableforsuchunitsas-pumps,-exchangers,-boilerinstallations,tankinstallations,-consumerinstallations.However,thefullfunctionalabilityanddurabilityofsuchunitsshouldbeensuredinconsiderationoftheimpactsfromthedistrictheatingsystemandotherimpactsoccurringfromtheconditionsunderwhichtheyhavebeeninstalled.GuidelinesforproductqualityinspectionandinsitutestsofjointsaregiveninannexAofEN448:2003,annexDofEN253:2003,annexAofEN488:2003andannexBofEN489:2003.GuidelinesforweldingofpolyethylenecasingaregiveninannexBofEN448:2003.TheestimationofexpectedlifewithcontinuousoperationatvarioustemperaturesisoutlinedinannexBofEN253:2003
【中国标准分类号】:Q83
【国际标准分类号】:91_140_10
【页数】:114P;A4
【正文语种】:英语


下载地址: 点击此处下载
【英文标准名称】:SpecificationforDrawnorRolledNickel-ChromiumandNickel-Chromium-IronAlloysforElectricalHeatingElements
【原文标准名称】:电气加热元件用拉制或轧制镍-铬合金及镍-铬-铁合金规范
【标准号】:ANSI/ASTMB344-2002
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:加热元件;铬;合金;铁;镍
【英文主题词】:heatingelements;nickel;chromium;alloys;iron
【摘要】:Thisspecificationcoversannealed,drawn,orrolledshapesforelectricalheatingpurposes,ofalloyshavingthenominalcompositionsof80%nickeland20%chromium;60%nickel,16%chromium,andremainderiron;and35%nickel,20%chromium,andremainderiron.Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.
【中国标准分类号】:K14
【国际标准分类号】:77_150_40
【页数】:
【正文语种】:英语


【英文标准名称】:Roadmarkingmaterials-Requirementsforfactoryproductioncontrol;GermanversionEN13212:2011
【原文标准名称】:路标材料.工厂生产控制要求.德文版EN13212-2011
【标准号】:EN13212-2011
【标准状态】:现行
【国别】:
【发布日期】:2011-12
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Certification;Certification(approval);Checks;Colour;Construction;Constructionalproducts;Definitions;Designations;Handling;Marking;Markingmaterials;Materials;Physicalproperties;Plastics;Prefabricated;Premixglassbeads;Productioncontrol;Properties;Qualityassurance;Qualitycontrol;Qualityrequirements;Rawmaterials;Reflection;Roadconstruction;Roadmarking;Roads;Specification(approval);Storage;Streets;Surfacetexture;Surfacetreatment;Surfaces;Surveillance(approval);Testing;Trafficcontrolsystems;Transportationsafety;Worktest
【摘要】:
【中国标准分类号】:Q20
【国际标准分类号】:93_080_20
【页数】:16P;A4
【正文语种】:英语



版权声明:所有资料均为作者提供或网友推荐收集整理而来,仅供爱好者学习和研究使用,版权归原作者所有。
如本站内容有侵犯您的合法权益,请和我们取得联系,我们将立即改正或删除。
京ICP备14017250号-1