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【英文标准名称】:Hand-heldportablepowertools-Testmethodsforevaluationofvibrationemission-Part2:Wrenches,nutrunnersandscrewdrivers(ISO28927-2:2009);GermanversionENISO28927-2:2009
【原文标准名称】:手持便携式电动工具.振动辐射的评估用试验方法.第2部分:扳手、螺母机和螺丝刀(ISO28927-2-2009).德文版本ENISO28927-2-2009
【标准号】:ENISO28927-2-2009
【标准状态】:现行
【国别】:
【发布日期】:2010-05
【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】:声学;辅助装置;校准;检测点;定义;排放测量;排放值;手工工具;搬运;实验室试验;机床;机械;手动机械;测量;测量条件;测量仪器;测量技术;机械工程;电动的;螺母转动;使用条件;步进控制系统;销型端面扳手;气动设备;便携的;动力驱动;挤压力;额定值;机械安全;旋具;规范(验收);试验;工具;振动;振动影响(对人体);振动测量;拾振器;抗震试验
【英文主题词】:Acoustics;Auxiliarydevices;Calibration;Checkpoint;Definitions;Emissionmeasurement;Emissionvalues;Handtools;Handling;Laboratorytesting;Machinetools;Machines;Manuallyoperatedmachines;Measurement;Measurementconditions;Measuringinstruments;Measuringtechniques;Mechanicalengineering;Motor-operated;Nutrunners;Operatingconditions;Pedestrian-controlledsystems;Pin-typefacewrenches;Pneumaticequipment;Portable;Powerdrives;Power-operated;Pressingforce;Ratings;Safetyofmachinery;Screwdrivers;Specification(approval);Testing;Tools;Vibration;Vibrationeffects(humanbody);Vibrationmeasurement;Vibrationpick-ups;Vibrationresistancetests
【摘要】:
【中国标准分类号】:K64;Z32
【国际标准分类号】:17_160;25_140_01
【页数】:49P;A4
【正文语种】:英语


【英文标准名称】:Fibreorganisersandclosurestobeusedinopticalfibrecommunicationsystems.Productspecifications.Singlemodemechanicalfibresplice
【原文标准名称】:用于光纤传递系统的纤维形成体和闭路.产品规范.单模光纤机械接头
【标准号】:BSEN50411-3-2-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2011-04-30
【实施或试行日期】:2011-04-30
【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】:
【英文主题词】:Cables;Components;Connectiontechnology;Electricplugs;Electronicequipmentandcomponents;Environment;Environmentalcondition;Fasteners;Fibreoptics;Glassfibrecables;Glassfibres;Measurement;Measuringtechniques;Monomodefibres;Opticalwaveguides;Performanceinservice;Specification(approval);Splices;Testreports;Testing
【摘要】:1.1ProductdefinitionThisEuropeanStandardcontainstheinitial,startoflifedimensional,optical,mechanicalandenvironmentalperformancerequirements,whichasinglemodemechanicalspliceshallmeetinorderforittobecategorisedasanENstandardproduct.Sincedifferentvariantsandgradesofperformancearepermitted,productmarkingandidentificationdetailsaregivenin3.5.AlthoughinthisdocumenttheproductisqualifiedforEN60793-2-50typesB1.1andB1.3singlemodefibres,itmayalsobesuitableforotherfibretypes.1.2InteroperabilityTheinstalledmechanicalsplicefitsintoafibremanagementsystemwithopticalfibresplicecassettesorsplicetrays.ThisEuropeanStandardspecifiesthefollowingtwophysicalinterfacedimensions:a)crosssectionalprofilewithwidth,heightordiameter(inmillimetres);b)length(inmillimetres).1.3ExpectedperformanceInthisdocument,theperformanceofamechanicalspliceisgivenwithidenticalfibresonly.Lossesassociatedwithfibrecladdingdiameterandmodefieldmismatcharenottakenintoaccount.Themeasuredattenuationisafunctionofthecoreconcentricity,claddingnon-circularityandalignmentcapability.Theopticalreturnlossperformanceisafunctionoftheindexmatchinggelandthefibreendfacepreparation.1.4OperatingenvironmentThetestsselectedcombinedwiththeseveritiesanddurationsarerepresentativeofanoutdoorenclosedenvironmentdefinedascategoryUinEN61753-1.Toensurethattheproductcanbeusedinclosures,boxesorstreetcabinetforcategoriesA,GandS(asdefinedEN61753-1)thespecifiedlowertemperatureisextendedto-40°Candrequirementsfortemporaryfloodinghavebeenadded.1.5ReliabilityWhilsttheanticipatedservicelifeexpectancyoftheproductinthisenvironmentis20years,compliancewiththisspecificationdoesnotguaranteethereliabilityoftheproduct.Thisshouldbepredictedusingarecognisedreliabilityassessmentprogramme.1.6QualityassuranceCompliancewiththisspecificationdoesnotguaranteethemanufacturingconsistencyoftheproduct.Thisstandarddoesnotcoverqualityinsurance.
【中国标准分类号】:M33
【国际标准分类号】:33_180_20
【页数】:24P.;A4
【正文语种】:英语