【英文标准名称】:Acoustics.Measurementofairbornenoiseemittedbyinformationtechnologyandtelecommunicationsequipment
【原文标准名称】:声学.信息技术和通讯设备排放的空气噪声的测量
【标准号】:BSENISO7779-2010
【标准状态】:现行
【国别】:英国
【发布日期】:2010-11-30
【实施或试行日期】:2010-11-30
【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】:声学测量;声学试验;声学;空气噪声;发出的空气噪声;空气(载)声;电缆;校准;粘粒粒级;比较;计算机;修正;数据;数据处理;数据处理设备;定义(术语);测定;包络面法;环境;人类工效学;外部噪声;过滤器;自由场;频率;搬运;信息技术;输入电压;装置;仪器;布置;响度级;机械噪声;机械;测量;测量持续时间;测量边界;测量环境;测量不确定度;测量仪器;测量室;测量面;测量系统;测量技术;方法;传声器;潮气;噪声;噪声控制;噪声排放;噪声(环境的);噪声测量值;办公室设备;办公机器;使用条件;操作台;操作;操作者;PC;个人计算机;精密度;压力;打印机;反射;混响室法;混响室;转动;就坐;声强;声级;声压;声压级;声源;表;电信;温度;终端;试验;单元类型;工作地点
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Airbornenoise;Airbornenoiseemitted;Airbornesound;Cables;Calibration;Clayfraction;Comparison;Computers;Corrrections;Data;Dataprocessing;Dataprocessingequipment;Definitions;Determination;Envelopingsurfacemethods;Environment;Ergonomics;Externalnoise;Filters;Freefields;Frequencies;Handling;Informationtechnology;Inputvoltage;Installations;Instruments;Layout;Loudnesslevels;Machinenoise;Machines;Measurement;Measurementduration;Measuringbanks;Measuringenvironment;Measuringincertainity;Measuringinstruments;Measuringrooms;Measuringsurfaces;Measuringsystems;Measuringtechniques;Methods;Microphones;Moisture;Noise;Noisecontrol;Noiseemissions;Noise(environmental);Noisemeasurements;Officeequipment;Officemachines;Operatingconditions;Operatingstations;Operation;Operators;PC;Personalcomputers;Precision;Pressure;Printers;Reflection;Reverberationroommethod;Reverberationrooms;Rotation;Sitting;Soundintensity;Soundlevel;Soundpressure;Soundpressurelevel;Soundsources;Tables;Telecommunications;Temperature;Terminals;Testing;Typeofunit;Workingplaces
【摘要】:ThisInternationalStandardspecifiesproceduresformeasuringandreportingthenoiseemissionofinformationtechnologyandtelecommunicationsequipment.NOTE1ThisInternationalStandardisconsideredpartofanoisetestcode(see3.1.2)forthistypeofequipment,andisbasedonbasicnoiseemissionstandards(see3.1.1)ISO3741,ISO3744,ISO3745andISO11201.ThebasicemissionquantityistheA-weightedsoundpowerlevelwhichmaybeusedforcomparingequipmentofthesametypebutfromdifferentmanufacturers,orforcomparingdifferentequipment.ThreebasicnoiseemissionstandardsfordeterminationofthesoundpowerlevelsarespecifiedinthisInternationalStandardinordertoavoidunduerestrictiononexistingfacilitiesandexperience.ISO3741specifiescomparisonmeasurementsinareverberationtestroom;ISO3744andISO3745specifymeasurementsinanessentiallyfreefieldoverareflectingplane.AnyoneofthesethreebasicnoiseemissionstandardscanbeselectedandusedexclusivelyinaccordancewiththisInternationalStandardwhendeterminingsoundpowerlevelsofamachine.TheA-weightedsoundpowerlevelissupplementedbytheA-weightedemissionsoundpressureleveldeterminedattheoperatorposition(s)orthebystanderpositions,basedonbasicnoiseemissionstandardISO11201.Thissoundpressurelevelisnotaworker'simmissionratinglevel,butitcanassistinidentifyinganypotentialproblemsthatcouldcauseannoyance,activityinterference,orhearingdamagetooperatorsandbystanders.MethodsfordeterminationofwhetherthenoiseemissionincludesprominentdiscretetonesorisimpulsiveincharacterarespecifiedinAnnexesDandE,respectively.ThisInternationalStandardissuitablefortypetestsandprovidesmethodsformanufacturersandtestinglaboratoriestoobtaincomparableresults.ThemethodsspecifiedinthisInternationalStandardallowthedeterminationofnoiseemissionlevelsforafunctionalunit(see3.1.4)testedindividually.Theproceduresapplytoequipmentwhichemitsbroad-bandnoise,narrow-bandnoiseandnoisewhichcontainsdiscrete-frequencycomponents,orimpulsivenoise.Thesoundpowerandemissionsoundpressurelevelsobtainedcanservenoiseemissiondeclarationandcomparisonpurposes(seeISO9296).NOTE2Thesoundpowerandemissionsoundpressurelevelsobtainedarenottobeconsideredasinstallationnoiseimmissionlevels;however,theycanbeusedforinstallationplanning(seeECMATR/27.Ifsoundpowerlevelsobtainedaredeterminedforanumberoffunctionalunitsofthesameproductionseries,theycanbeusedtodetermineastatisticalvalueforthatproductionseries(seeISO9296).
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20;35_020
【页数】:70P.;A4
【正文语种】:英语
基本信息
标准名称: | 运行中发电机用油质量标准 |
英文名称: | Quality standard of generator oils in service |
中标分类: |
石油 >>
石油产品 >>
绝缘油 |
ICS分类: |
石油及相关技术 >>
润滑剂、工业油及相关产品
|
发布部门: | 中华人民共和国国家发展和改革委员会 |
发布日期: | 2006-12-17 |
实施日期: | 2007-05-01 |
首发日期: | |
作废日期: | |
归口单位: | 电力行业电厂化学标准化技术委员会 |
起草单位: | 国电热工研究院、四川电力试验研究院、成都电厂 |
出版社: | 中国电力出版社 |
出版日期: | 2007-05-01 |
页数: | 7页 |
适用范围
本标准是在参照GB/T 7595-2000《运行中变压器用油质量标准》的基础上,结合发电机的特点,借鉴前苏联发电机制造企业对油品质量的要求,为解决生产和运行工作的需要而制定的。本标准规定了发电机用油质量标准、常规检验项目、检验周期。
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所属分类: 石油 石油产品 绝缘油 石油及相关技术 润滑剂 工业油及相关产品