标准资料网-标准资料免费资源平台

【英文标准名称】:StandardPracticeforSelectionofNaturalGasPipelinesSuitableforInstallationofOpticalFiberSystems
【原文标准名称】:适用于光纤系统安装的天然气管道的选择的标准规程
【标准号】:ASTMF2350-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:F36.10
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:conduits;criteria;installation;naturalgas;pipeline;selection
【摘要】:Thispracticeisintendedtoassistengineers,LDC’andinstallersindeterminingthesuitabilityofgaspipelinesforasecondaryuseascarriersforopticalfibersystems.Itmustbekeptinmindthattheprimaryuseofthegaspipelinesistodelivernaturalgastotheendcustomer.Anysecondaryuseofthesystemshallhaveminimalimpactonitsprimaryfunction.Itisuptotheengineertodecideupontheorderofoperationsandanyexceptionsthatmaybeinvolvedintheselectionprocess.Beforetheselectionprocedurebegins,theLDCmusthavedevelopedanexplicitagreementauthorizinganinstallertoplaceopticalfibercableswithintheirpipingsystem.TherelevantLDCengineersshouldalsobecognizantofhowtheinstallationofopticalfibercablewillimpactthefuturegasdeliverability,operation,maintenance,andrehabilitationneedsofthepipelinestobeusedascarriersofopticalfibersystems.1.1Thispracticespecificallyaddressesthecriteriafordeterminingthesuitabilityofnaturalgaspipelinesforuseasconduitsforopticalfibercablesystems,asopposedtostandardsfortheoperationandmaintenanceofsuchasystem.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesprovidedinparenthesesareforinformationpurposesonly.1.3Thispracticedoesnotapplytonaturalgastransmissionlines.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:M33
【国际标准分类号】:33_180_99
【页数】:3P.;A4
【正文语种】:


【英文标准名称】:Electricalequipmentformeasurement,controlandlaboratoryuse-EMCrequirements-Part3-1:Immunityrequirementsforsafety-relatedsystemsandforequipmentintendedtoperformsafetyrelatedfunctions(functionalsafety)-Generalindustrialapplica
【原文标准名称】:测量、控制和实验室用电气设备.电磁兼容性(EMC)的要求.第3-1部分:与安全相关的系统和用于与执行安全相关的功能设备(功能安全)用抗扰度要求.一般工业设施
【标准号】:IEC61326-3-1-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-01
【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/SC65A
【标准类型】:()
【标准水平】:()
【中文主题词】:控制图;控制技术;定义;电控制设备;电气工程;电气设备;电驱动装置;电磁兼容性;EMC;特点;功能效率;工作可靠性;功能;抗扰性;工业设施;工业;干扰抑制;干扰辐射;极限(数学);场所;测量仪器;使用条件;过程测量和控制设备;过程测量和控制技术;辐射;安全;规范(验收);样品;电源电压;试验设备;测试;测试组织
【英文主题词】:Additionaldevices;Applications;Buildingautomations;Cabling;Classes;Computersoftware;Configuration;Connections;Controlcharts;Controltechnology;Definitions;Determinations;Earthing;Electriccontrolequipment;Electrical;Electricalengineering;Electricalequipment;Electrically-operateddevices;Electromagneticcompatibility;EMC;Entrances;Environmentalcondition;Evaluations;Exits;Features;Frequencyranges;Functionalefficiency;Functionalreliability;Functions;Immunity;Industrialfacilities;Industries;Inserts;Interferencerejections;Interferences;Interferingemissions;Laboratories;Limits(mathematics);Locations;Measurementconditions;Measuringinstruments;Operatingconditions;Operatingmode;Operation;Processmeasuringandcontrolequipment;Processmeasuringandcontroltechnology;Radiation;References;Safety;Specification(approval);Specimens;Supplyvoltages;Systems;Testequipment;Testresults;Testing;Testingset-ups
【摘要】:ThescopeofIEC61326-1appliestothispartofIEC61326butislimitedtosystemsandequipmentforindustrialapplicationsintendedtoperformsafetyfunctionsasdefinedinIEC61508withSIL1-3.Theelectromagneticenvironmentsencompassedbythisproductfamilystandardareindustrial,bothindoorandoutdoor,asdescribedforindustriallocationsinIEC61000-6-2ordefinedin3.7ofIEC61326-1.Equipmentandsystemsintendedforuseinotherelectromagneticenvironments,forexample,intheprocessindustryorinenvironmentswithpotentiallyexplosiveatmospheres,areexcludedfromthescopeofthisproductfamilystandard,IEC61326-3-1.Equipmentandsystemsconsideredas“proven-in-use”accordingtoIEC61508orIEC61511areexcludedfromthescopeofIEC61326-3-1.FirealarmsystemsandsecurityalarmsystemsintendedforprotectionofbuildingsareexcludedfromthescopeofIEC61326-3-1.
【中国标准分类号】:K60
【国际标准分类号】:25_040_40;33_100_20
【页数】:76P;A4
【正文语种】:英语