NF C71-247-3/A1-2005 灯控制装置.第2-3部分:荧光灯用交流电子镇流器的特殊要求
作者:标准资料网 时间:2024-05-07 04:38:05 浏览:8803
来源:标准资料网
【英文标准名称】:Lampcontrolgear-Part2-3:particularrequirementsfora.c.suppliedelectronicballastsforfluorescentlamps.
【原文标准名称】:灯控制装置.第2-3部分:荧光灯用交流电子镇流器的特殊要求
【标准号】:NFC71-247-3/A1-2005
【标准状态】:现行
【国别】:法国
【发布日期】:2005-01-01
【实施或试行日期】:2005-01-05
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:照明工程;防电击;规范(验收);电气安全;电气工程;电气设备;操作;荧光灯;定义;试验;测定;交流电流;安全要求;设备安全;镇流器;电灯;灯;仪器
【英文主题词】:Alternatingcurrent;Ballasts;Definition;Definitions;Determination;Electriclamps;Electricalappliances;Electricalengineering;Electricalsafety;Equipmentsafety;Fluorescentlamps;Illuminationengineering;Instruments;Lamps;Operation;Protectionagainstelectricshocks;Safetyrequirements;Specification(approval);Testing
【摘要】:
【中国标准分类号】:K74
【国际标准分类号】:29_140_99
【页数】:13P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 内燃机 气缸盖垫片 产品质量分等 |
| 中标分类： |
机械 >>
活塞式内燃机与其他动力设备 >>
机体与运动件 |
| 替代情况： | JB/T 51110.1-1994 JB/T 51110.2-1994 JB/T 51110.3-1994 |
| 发布日期： | 1999-12-30 |
| 实施日期： | 2000-06-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 8页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 机械 活塞式内燃机与其他动力设备 机体与运动件
【英文标准名称】:StandardGuideforPlanarFlawHeightSizingbyUltrasonics
【原文标准名称】:用超声波法测定平面裂纹高度尺寸的标准指南
【标准号】:ASTME2192-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E07.06
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:evaluation;examination;flaw-heightsizing;flawsizing;nondestructivetesting;ultrasonic;Evaluationdevices/systems;Nondestructiveevaluation(NDE);Planarflaw-heightsizing;Timeofflight(TOF)sizingtechnique;Ultrasonicdiffraction;Ultra
【摘要】:Thepracticesreferencedinthisdocumentareapplicabletomeasuringtheheightofplanarflawsopentothesurfacethatoriginateonthefar-surfaceornear-surfaceofthecomponent.Thesepracticesareapplicabletothrough-wallsizingofmechanicalorthermalfatigueflaws,stresscorrosionflaws,oranyothersurface-connectedplanarflaws.Thetechniquesoutlineddescribeprovenultrasonicflawsizingpracticesandtheirassociatedlimitations,usingrefractedlongitudinalwaveandshearwavetechniquesasappliedtoferriticorausteniticcomponents.Othermaterialsmaybeexaminedusingthisguidewithappropriatestandardizationreferenceblocks.Thepracticesdescribedareapplicabletobothmanualandautomatedexaminations.ThetechniquesrecommendedinthisstandardguideuseTimeofFlight(TOF)orDeltaTimeofFlight(x0394;TOF)methodstoaccuratelymeasuretheflawsize.Thisguidedoesnotincludetheuseofsignalamplitudemethodstodetermineflawsize.Generally,withthesesizingmethodsthevolumeofmaterial(orcomponentthickness)tobesizedisdividedintothirds;theinner1/3,themiddle1/3andtheouter1/3.Usingthefar-surfaceCreepingWaveMethodtheusercanqualitativelysegregatetheflawintotheapproximate1/3zone.Thesizingmethodsareusedin1/3zonestoquantitativelysizethecrack,thatis,Tip-diffractionfortheinner1/3,Bi-Modalmethodforthemiddle1/3,andtheFocusedLongitudinalWaveorFocusedShearWaveMethodsfortheouter1/3.These1/3zonesaregenerallyapplicabletomostsizingapplications,however,thevarioussizingmethodshaveapplicationsoutsidethese1/3zonesprovidedaproperreferenceblockandtechniqueisdemonstrated.1.1Thisguideprovidestutorialinformationandadescriptionoftheprinciplesandultrasonicexaminationtechniquesformeasuringtheheightofplanarflawswhichareopentothesurface.Thepracticesandtechnologydescribedinthisstandardguideareintendedasareferencetobeusedwhenselectingaspecificultrasonicflawsizingtechniqueaswellasestablishingameansforinstrumentstandardization.1.2Thisstandardguidedoesnotprovideorsuggestaccuracyortolerancesofthetechniquesdescribed.Parameterssuchassearchunits,examinationsurfaceconditions,materialcomposition,etc.canallhaveabearingontheaccuracyofresults.Itisrecommendedthatusersassessaccuracyandtolerancesapplicableforeachapplication.1.3Thisdocumentdoesnotpurporttoprovideinstructiontomeasureflawlength.1.4Thisstandardguidedoesnotprovide,suggest,orspecifyacceptancestandards.Afterflaw-sizingevaluationhasbeenmade,theresultsshouldbeappliedtoanappropriatecodeorstandardthatspecifiesacceptancecriteria.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:19_100
【页数】:22P.;A4
【正文语种】:英语
