JIS E1505-1993 轨道用单头扳手
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【英文标准名称】:Singleendedwrenchesfortrackservice
【原文标准名称】:轨道用单头扳手
【标准号】:JISE1505-1993
【标准状态】:现行
【国别】:日本
【发布日期】:1993-03-01
【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】:TechnicalCommitteeonRailwaysandRollingStock
【标准类型】:()
【标准水平】:()
【中文主题词】:铁路钢轨;开口扳手
【英文主题词】:open-endedspanners;
【摘要】:この規格は,鉄道線路用片ロスパナ(以下,スパナという。)について規定する。
【中国标准分类号】:J47
【国际标准分类号】:45_080
【页数】:5P;A4
【正文语种】:日语
【英文标准名称】:Fansforgeneralpurposes-Specificationsforbalancingandvibration
【原文标准名称】:通用风扇.平衡和振动规范
【标准号】:BS848-7-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-05-14
【实施或试行日期】:2003-05-14
【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】:平衡;定义;定义(术语);影响;通风设备;振动;振动效果;振动强度
【英文主题词】:Balancing;Definition;Definitions;Impacts;Ventilators;Vibration;Vibrationeffects;Vibrationintensity
【摘要】:ThisInternationalStandardgivesspecificationsforvibrationandbalancelimitsoffansforallapplicationsexceptthosedesignedsolelyforaircirculation,forexample,ceilingfansandtablefans.However,itislimitedtofansofalltypesinstalledwithapoweroflessthan300kWortoacommerciallyavailablestandardelectricmotorwithamaximumpowerof355kW(followinganR20series).Forfansofgreaterpowerthanthis,theapplicablelimitsarethosegiveninISO10816-3.Wherethefansinaninstallationhavevaryingpowersbothaboveandbelow300kW,andhavebeenthesubjectofasinglecontract,thenthemanufacturerandpurchasershallagreeontheappropriatestandardtobeused.Thisshouldnormallybebasedonthemajorityofunits.VibrationdatamayberequiredforavarietyofpurposesasdetailedinClause5.TheInternationalStandardrecognizesthatvibrationalmeasurementsmayberecordedasvelocity,accelerationordisplacementeitherinabsoluteunitsorindecibelsaboveagivenreferencelevel.Themagnitudeofvibrationmeasurementsmaybeaffectedbyassemblypracticesatbalancingmachines(seeAnnexB).Thepreferredparameteris,however,thevelocity,inmillimeterspersecond(mm/s).Astheconventionsvaryindifferentpartsoftheworld,bothr.m.s.(rootmeansquare)andpeak-to-peakorpeakvaluesaregiven.Itshouldalsoberememberedthatafananditspartsmaybeconsideredasaspring-masssystem.Anunderstandingofthisfacthelpstoresolvemostvibrationalproblems(seeAnnexD).Accounthasalsobeentakenofthefactthatfactorytestsareusuallyconductedwiththefanunconnectedtoaductingsystem,suchthatitsaerodynamicdutymaybeconsiderablydifferentfromthatduringnormaloperation.Itmayalsobesupportedontemporaryfoundationsofdifferentmassandstiffnesstothoseusedinsitu.Accordingly,suchtestsarespecifiedwithvibrationmeasured“filter-in”.Insitutestsarespecified“filter-out”andassuchrepresentameasureofoverallvibrationseverity.ThisInternationalStandardcoversfanequipmentwithrigidrotors,generallyfoundin:commercialheating,ventilatingandairconditioning,industrialprocesses,mine/tunnelventilationandpower-generationapplications.Otherapplicationsarenotspecificallyexcluded.Excludedareinstallationswhichinvolvesevereforces,impactsorextremetemperatures.AnyorallportionsofthisInternationalStandard,ormodificationsthereof,aresubjecttoagreementbetweenthepartiesconcerned.Fan-equipmentfoundationsandinstallationpracticesarebeyondthescopeofthisInternationalStandard.Foundationdesignandfaninstallationarenotnormallytheresponsibilitiesofthefanmanufacturer.Itisfullyexpectedthatthefoundationsuponwhichthefanismountedwillprovidethesupportandstabilitynecessarytomeetthevibrationcriteriaofthefanasitisdeliveredfromthefactory.Otherfactors,suchasimpellercleanliness,aerodynamicconditions,backgroundvibration,operationatspeedsotherthanthoseagreedupon,andmaintenanceofthefan,affectthefan-vibrationlevelsbutarebeyondthescopeofthisInternationalStandard.ThisInternationalStandardisintendedtocoveronlythebalanceorvibrationofthefananddoesnottakeintoaccounttheeffectoffanvibrationonpersonnel,equipmentorprocesses.
【中国标准分类号】:J72
【国际标准分类号】:17_160;23_120
【页数】:48P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 胶轮力车 |
| 中标分类： |
|
| 替代情况： | 调整为JB/T 8305.1-1995 |
| 发布日期： | |
| 实施日期： | 1984-11-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 5页 |
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