DIN EN 1080-1997 幼儿用冲击防护帽
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【英文标准名称】:Impactprotectionhelmetsforyoungchildren;GermanversionEN1080:1997
【原文标准名称】:幼儿用冲击防护帽
【标准号】:DINEN1080-1997
【标准状态】:作废
【国别】:德国
【发布日期】:1997-04
【实施或试行日期】:1997-04-01
【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】:使用说明;头皮防护器;作标记;防事故;幼儿;视野;儿童;保持力;设计;防护帽;检验;冲击;安全工程;定义;规范(验收);安全要求;试验
【英文主题词】:fieldofvision;safetyengineering;marking;infants;children;specification(approval);design;protectionagainstaccidents;testing;helmets;inspection;retentionforce;instructionsforuse;definitions;saf
【摘要】:
【中国标准分类号】:C73
【国际标准分类号】:97_190;13_340_20
【页数】:10P;A4
【正文语种】:德语
【英文标准名称】:Acoustics-Determinationofsoundpowerradiatedintoaductbyfansandotherair-movingdevices-In-ductmethod
【原文标准名称】:声学.风机和其他风动设备辐射入管道中的声功率的测定.管道法
【标准号】:ISO5136-2003
【标准状态】:现行
【国别】:国际
【发布日期】:2003-04
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC43
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;声级;噪声(环境的);声学;噪声测量;声学试验;测定;定义;通风机;声强;导管风扇
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Definitions;Determination;Ductmethods;Ductedfans;Fans;Loudnesslevels;Measurement;Measuringresults;Measuringtechniques;Noise(environmental);Noisemeasurements;Powerlevels;Sound;Soundintensity;Soundlevel;Soundlevels;Soundpower;Testing;Ventilators;Volume(sound)
【摘要】:1GeneralThisInternationalStandardspecifiesamethodfortestingductedfansandotherair-movingdevicestodeterminethesoundpowerradiatedintoananechoicallyterminatedductontheinletand/oroutletsideoftheequipment.NOTE1Forthesakeofbrevity,wherevertheterm"fan"occursinthetext,itmeans"fanorotherair-movingdevice".Themethodisapplicabletofanswhichemitsteady,broad-band,narrow-bandanddiscrete-frequencysoundandtoairtemperaturesbetween-50℃and+70℃.Thetestductdiameterrangeisfrom0,15mto2m.Testmethodsforsmall(d<0,15m)andlarge(d>2m)testductsaredescribedintheinformativeAnnexesHandI,respectively.Themaximummeanflowvelocityatthemicrophoneheadforwhichthemethodissuitabledependsonthetypeofmicrophoneshieldused,andisasfollows:—foamball15m/s;—nosecone20m/s;—samplingtube40m/s.Abovethesevaluesthesuppressionofturbulentpressurefluctuationsbythemicrophoneshield(see3.9)maybeinsufficient.ItisexpectedthatsoundpowertestswillbeconductedinconjunctionwithairflowperformancetestsinaccordancewithISO5801.Theductingarrangementwillthereforenormallyincorporatea"star"typeflowstraightenerontheoutletsideofthefanwhichwillminimizeswirl(see7.3).Whereitispermissibletodeletethestraighteneras,forexample,withlargefanstoinstallationcategoryCaccordingtoISO5801:1997,themethodislimitedtoaswirlangleof15°(AnexampleofamethodfordeterminingtheangleofswirlisgiveninAnnexJ.)NOTE2TheinstallationcategoriesdefinedinISO5801implythatthefaniseitherductedontheoutletsideonly(categoryB),ontheinletsideonly(categoryC)oronbothsides(categoryD).2TypesofsoundsourceThemethoddescribedinthisInternationalStandardisapplicabletoasoundsourceinwhichafanisconnectedtoductsonatleastoneside.Itisalsoapplicabletootherfan/attenuatorcombinationsorequipmentincorporatingfanswhichcanbeconsideredas"blackboxes".ExamplesoffansandotherequipmentcoveredbythisInternationalStandardare—ductedcentrifugalfans,—ductedaxialflowfans,—ductedmixed-flowfans,—ductedair-handlingunits,—ducteddust-collectionunits,—ductedair-conditioningunits,and—ductedfurnaces.ThisInternationalStandardisalsoapplicabletootheraerodynamicsourcessuchasboxes,dampersandthrottledevicesprovidedthataquietairflowdeliveredbyanauxiliaryfanisavailable,andthesignal-to-noiseratioofsoundpressurestoturbulentpressurefluctuationsinthetestductisatleast6dB(see7.2.1).Analternativemethodtodeterminethesoundpowerleveloftheflow-generatednoiseofsuchaerodynamicsoundsources,whichdoesnotrequirethemeasurementofsoundpressureinaflowenvironment,isdescribedinISO7235.Themethodwasoriginallydevisedforthedeterminationoftheflownoiselevelofductedsilencers.Thesoundpowerisdeterminedinareverberationroomconnectedtothetestductviaatransitionelement.Inthecaseofductedfanswithcloselycoupledattenuators,thesignal-to-noiseratioofsoundpressurestoturbulentpressuresmaybeinsufficientwhenusingthein-ductmethod.ThereforethemethoddescribedinISO7235isrecommendedforsuchfan/attenuatorcombinations.ThisInternationalStandardisnotapplicabletonon-ductedfansorequipment.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20;23_120
【页数】:68P;A4
【正文语种】:英语
基本信息
标准名称: | 立式电机轴承用LYJH型油冷却器 |
英文名称: | Type-LYJH oil cooler for bearings of vertical electrical machines |
中标分类: |
电工 >>
旋转电机 >>
旋转电机综合 |
ICS分类: |
电气工程 >>
旋转电机 >>
旋转电机部件
|
替代情况: | JB/T 7607-1994 |
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: | 2005-02-14 |
实施日期: | 2005-08-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
提出单位: | 中国机械工业联合会 |
归口单位: | 哈尔滨大电机研究所 |
起草单位: | 上海电机厂 |
起草人: | 丁国勇 |
出版社: | 机械工业出版社 |
出版日期: | 2005-08-01 |
页数: | 13页 |
批文号: | 发改委2005-7 |
书号: | 15111.7565 |
适用范围
本标准规定了立式电机轴承用LYJH型油冷却器的型式、基本参数、技术要求、试验方法和检验规则、标志及包装的要求。
本标准适用于立式电动轴承用双金属挤片式翼片管(以下简称翼片管)环形油冷却器。
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所属分类: 电工 旋转电机 旋转电机综合 电气工程 旋转电机 旋转电机部件