IEC 62271-203-2011 高压开关设备和控制设备.第203部分:额定电压超过52kV的气体绝缘金属壳开关装置
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【英文标准名称】:High-voltageswitchgearandcontrolgear-Part203:Gas-insulatedmetal-enclosedswitchgearforratedvoltagesabove52kV
【原文标准名称】:高压开关设备和控制设备.第203部分:额定电压超过52kV的气体绝缘金属壳开关装置
【标准号】:IEC62271-203-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-09
【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/SC17C
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:ACswitchgearandcontrolgear;Definitions;Dimensioning;Electricalengineering;EMC;Energydistribution;Gasinsulation;Gases;Gas-insulated;Highvoltage;High-voltageequipment;High-voltageswitchgear;High-voltageswitchgears;Insulatinggases;Insulations;Metalenclosures;Operatingconditions;Properties;Qualificationtests;Ratedvoltage;Ratedvoltages;Routinechecktests;Switchgear;Switchgears;Testing
【摘要】:
【中国标准分类号】:K43
【国际标准分类号】:29_130_10
【页数】:158P;A4
【正文语种】:英语
【英文标准名称】:Acoustics-Noiseemittedbymachineryandequipment-Guidelinesfortheuseofbasicstandardsforthedeterminationofemissionsoundpressurelevelsataworkstationandatotherspecifiedpositions
【原文标准名称】:声学机器和设备发射的噪声工作位置和其他指定位置发射声压级的测量的基本标准的使用导则
【标准号】:ISO11200-1995
【标准状态】:现行
【国别】:国际
【发布日期】:1995-12
【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】:声压;测定;噪声辐射;定义;设备;声学测量;机器;声学;一般条件;空气(载)声;噪声;声学试验
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Airbornenoise;Airbornesound;Applications;Basicstandard;Booths;Controls;Definitions;Determination;Dottedlines;Emission;Equipment;Ergonomics;Externalnoise;Generalconditions;Guidingprinciple;Instruments;Machinenoise;Machines;Microphones;Noise;Noiseemissions;Operatingstations;Planes;Position;Positioning;Radiation;Reflection;Reflective;Rooms;Safetyofmachinery;Selection;Sound;Soundintensity;Soundlevels;Soundpressure;Soundpressurelevel;Soundpropagation;Workingplaces
【摘要】:ThisInternationalStandardprovidesbriefsummariesofthebasicInternationalStandardsfordeterminingemissionsoundpressurelevelsfromalltypesofmachineryandequipment.atworkstationsandatotherspecifiedpositions,andgivesguidanceontheprocessofselectionofwhichisappropriatetoanyparticulartype.Theguidanceg·,venappliesonlytoairbornesound,andisforuseinthepreparationofnoisetestcodes,andalsoforuseinnoisetestingwherenonoisetestcodeexists.ItisimportantthatspecificnoisetestcodesforvarioustypesofmachineryandequipmentbeestablishedandusedinaccordancewiththerequirementsofthesebasicInternationalStandards.Suchstandardizednoisetestcodeswillgivedetailedrequirementsonmountingandoperatingconditionsfortheparticularfamilytowhichthemachineundertestbelongs,aswellasthelocationoftheworkstationIs)andotherspecifiedpositionsasprescribedintheseInternationalStandards.ThedatasoobtainedmayalsobeusedforthedeclarationandverificationofemissionsoundpressurelevelsasspecifiedinISO4871.NOTE1Atanygivenpositioninrelationtoaparticularmachine,andforgivenmountingandoperatingconditions,theemissionsoundpressurelevelsdeterminedbyanyofthemethodsgiveninISO11201toISO11204willingeneralbelowerthanthedirectlymeasuredsoundpressurelevelsforthesamemachineinthetypicalworkroomwhereitisused.Thisisduetoreverberationandthecontributionsofothermachines.AmethodofcalculatingthesoundpressurelevelsinthevicinityofamachineoperatingaloneinaworkroomisgiveninISO11690-3.Commonlyobserveddifferencesare1dBto5dB,butinextremecasesthedifferencemaybeevengreater.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20
【页数】:20P.;A4
【正文语种】:英语
Product Code:SAE AS4625
Title:Hose Assembly, Polytetrafluoroethylene, Para Aramid Reinforced, Heavy-Duty, 275 Degrees F, 3000 Psi, Flareless, Titanium Fittings, Including Jump Size, Straight to 45 Degrees
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope:No scope available.