DIN EN 60617-10-1997 线图图形符号.第10部分:电信线路图.发射设备
时间:2024-05-22 03:11:40 来源: 标准资料网 作者：标准资料网 阅读：8726
【英文标准名称】:Graphicalsymbolsfordiagrams-Part10:Telecommunications;transmission(IEC60617-10:1996);GermanversionEN60617-10:1996
【原文标准名称】:线图图形符号.第10部分:电信线路图.发射设备
【标准号】:DINEN60617-10-1997
【标准状态】:现行
【国别】:德国
【发布日期】:1997-08
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:符号要素;作标记;电气工程;布线图;传输装置;符号;天线;图形符号;光波导;电信设备;无线电台;电信
【英文主题词】:
【摘要】:Thedocumentspecifiesgraphicalsymbolsfordiagramstorepresenttelecommunicationsandtransmissiondevices.
【中国标准分类号】:L04
【国际标准分类号】:01_080_50;33_020
【页数】:63P;A4
【正文语种】:德语
【英文标准名称】:Copperandcopperalloys-Copperdrawingstock(wirerod).
【原文标准名称】:铜和铜合金.铜拉制杆材(线材)
【标准号】:NFA51-118-1998
【标准状态】:现行
【国别】:法国
【发布日期】:1998-06-01
【实施或试行日期】:1998-06-20
【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】:
【英文主题词】:
【摘要】:
【中国标准分类号】:H62
【国际标准分类号】:77_150_30
【页数】:22P;A4
【正文语种】:其他
【英文标准名称】:StandardPracticesforElectricalMethodsforLocatingLeaksinGeomembranesCoveredwithWaterorEarthMaterials
【原文标准名称】:水或土料覆盖的土工薄膜上漏洞定位的电方法的标准实施规程
【标准号】:ASTMD7007-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:D35.10
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:constructionqualityassurance;electricalleaklocationmethod;geomembrane;leakdetection;leaklocation
【摘要】:Geomembranesareusedasimpermeablebarrierstopreventliquidsfromleakingfromlandfills,ponds,andothercontainments.Theliquidsmaycontaincontaminantsthatifreleasedcancausedamagetotheenvironment.Leakingliquidscanerodethesubgrade,causingfurtherdamage.Leakagecanresultinproductlossorotherwisepreventtheinstallationfromperformingitsintendedcontainmentpurpose.Forthesereasons,itisdesirablethatthegeomembranehaveaslittleleakageaspractical.Geomembraneleakscanbecausedbypoorqualityofthesubgrade,poorqualityofthematerialplacedonthegeomembrane,accidents,poorworkmanship,andcarelessness.Themostsignificantcausesofleaksingeomembranesthatarecoveredwithonlywaterarerelatedtoconstructionactivitiesincludingpumpsandequipmentplacedonthegeomembrane,accidentalpunctures,andpuncturescausedbytrafficoverrocksordebrisonthegeomembraneorinthesubgrade.Themostsignificantcauseofleaksingeomembranescoveredwithearthmaterialsisconstructiondamagecausedbymachinerythatoccurswhileplacingtheearthmaterialonthegeomembrane.Suchdamagealsocanbreachadditionallayersoftheliningsystemsuchasgeosyntheticclayliners.Electricalleaklocationmethodsareaneffectivefinalqualityassurancemeasuretolocatepreviouslyundetectedormissedleaks.1.1Thisstandardpracticedescribesstandardproceduresforusingelectricalmethodstolocateleaksingeomembranescoveredwithwaterorearthmaterialscontainingmoisture.1.2Thisstandardpracticeisintendedtoensurethatleaklocationsurveysareperformedwithdemonstratedleakdetectioncapability.Toallowfurtherinnovations,andbecausevariousleaklocationpractitionersuseawidevarietyofproceduresandequipmenttoperformthesesurveys,performance-basedoperationsareusedthatspecifytheminimumleakdetectionperformancefortheequipmentandprocedures.1.3Thisstandardpracticerequiresthattheleaklocationequipment,procedures,andsurveyparametersusedaredemonstratedtoresultinanestablishedminimumleakdetectionsensitivity.Thesurveyshallthenbeconductedusingthedemonstratedequipment,procedures,andsurveyparameters.1.4Separateproceduresaregivenforleaklocationsurveysforgeomembranescoveredwithwaterandforgeomembranescoveredwithearthmaterials.Separateproceduresaregivenforleakdetectionsensitivitytestsusingactualandartificialleaks.1.5Leaklocationsurveyscanbeusedongeomembranesinstalledinbasins,ponds,tanks,oreandwastepads,landfillcells,landfillcaps,andothercontainmentfacilities.Theproceduresareapplicableforgeomembranesmadeofmaterialssuchaspolyethylene,polypropylene,polyvinylchloride,chlorosulfonatedpolyethylene,bituminousmaterial,andotherelectrically-insulatingmaterials.1.6Warning-Theelectricalmethodsusedforgeomembraneleaklocationcouldusehighvoltages,resultinginthepotentialforelectricalshockorelectrocution.Thishazardmightbeincreasedbecauseoperationsmightbeconductedinornearwater.Inparticular,ahighvoltagecouldexistbetweenthewaterorearthmaterialandearthground,oranygroundedconductor.TheseproceduresarepotentiallyVERYDANGEROUS,andcanresultinpersonalinjuryordeath.Theelectricalmethodsusedforgeomembraneleaklocationshouldbeattemptedonlybyqualifiedandexperiencedpersonnel.Appropriatesafetymeasuresmustbetakentoprotecttheleaklocationoperatorsaswellasotherpeopleatthesite.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheap......
【中国标准分类号】:W59
【国际标准分类号】:59_080_70
【页数】:11P.;A4
【正文语种】: