热门站点| 世界资料网 | 专利资料网 | 世界资料网论坛
收藏本站| 设为首页| 首页

UL 506-2008 专用变压器

作者:标准资料网 时间:2024-05-21 21:47:05  浏览:9174   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Specialtytransformers
【原文标准名称】:专用变压器
【标准号】:UL506-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008-06-16
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:发电机;燃气轮机;点火变压器;惰性气体;变压器
【英文主题词】:Electricgenerators;Gasturbines;Ignitiontransformers;Inertgases;Transformers
【摘要】:1.1Theserequirementscoverignitiontransformersforusewithgasburnersandoilburnersandspecialtystep-uptransformersusedinapplicationssuchasinsectelectrocuting.Transformersincorporatingovercurrentorover-temperatureprotectivedevices,transientvoltagesurgeprotectors,orpowerfactorcorrectioncapacitorsarealsocoveredbytheserequirements.ThesetransformersareintendedtobeusedinaccordancewiththeNationalElectricalCode,NFPA70.1.2Theserequirementsdonotcoverliquid-immersedtransformers,variablevoltageautotransformers,transformershavinganominalprimaryratingofmorethan600volts,transformershavingovervoltagetapsratedover660volts,cordandplugconnectedtransformers,gardenlighttransformers,voltageregulators,swimmingpoolandspatransformers,orotherspecialtypesoftransformerscoveredinrequirementsforotherelectricaldevicesorappliances.1.3Theserequirementsdonotcover:a)Autotransformersusedinindustrialcontrolequipment,whichareevaluatedinaccordancewiththeStandardforIndustrialControlEquipment,UL508.b)Class2orClass3transformers,whichareevaluatedinaccordancewiththeStandardforLowVoltageTransformers–Part1:GeneralRequirements,UL5085-1,andtheStandardforLowVoltageTransformers–Part3:Class2andClass3Transformers,UL5085-3.c)Toytransformers,whichareevaluatedinaccordancewiththeStandardforToyTransformers,UL697.d)Transformersforusewithradio-andtelevision-typeappliances,whichareevaluatedinaccordancewiththeStandardforTransformersandMotorTransformersforUseinAudio-,Radio-,andTelevision-TypeAppliances,UL1411.e)Transformersforusewithhighintensitydischargelamps,whichareevaluatedinaccordancewiththeStandardforHigh-Intensity-DischargeLampBallasts,UL1029.f)Transformersforusewithfluorescentlamps,whichareevaluatedinaccordancewiththeStandardforFluorescent-LampBallasts,UL935.g)Ventilatedtransformersforgeneraluseornon-ventilatedtransformersforgeneraluse(otherthancompoundfilledorexposedcoretypes),whichareevaluatedinaccordancewiththeStandardforDry-TypeGeneralPurposeandPowerTransformers,UL1561.h)Dry-typedistributiontransformersratedover600volts,whichareevaluatedinaccordancewiththeStandardforTransformers,Distribution,Dry-Type–Over600Volts,UL1562.i)TransformersincorporatingrectifyingorwaveshapingcircuitryevaluatedinaccordancewiththeStandardforPowerUnitsOtherThanClass2,UL1012.j)Transformersofthedirectplug-intypeevaluatedinaccordancewiththeStandardforClass2PowerUnits,UL1310.k)Transformersforusewithelectricdischargeandneontubing,whichareevaluatedinaccordancewiththeStandardforNeonTransformersandPowerSupplies,UL2161.l)GeneralpurposeandindustrialcontroltransformersevaluatedinaccordancewiththeStandardforLowVoltageTransformers–Part1:GeneralRequirements,UL5085-1,andtheStandardforLowVoltageTransformers–Part2:GeneralPurposeTransformers,UL5085-2.
【中国标准分类号】:K41
【国际标准分类号】:29_180
【页数】:54P.;A4
【正文语种】:英语


下载地址: 点击此处下载
【英文标准名称】:StandardPracticeforDeterminationofChromiumTreatmentWeightonMetalSubstratesbyX-RayFluorescence
【原文标准名称】:X射线荧光法测定金属基体上铬处理重量标准规程
【标准号】:ASTMD5723-1995(2002)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:D01.53
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:相关涂层;规程;XRFX;XRF;铬处理重量;涂覆重量;射线荧光;材料;金属基体;铬;涂料
【英文主题词】:chromium;coatingweight;treatment;X-rayfluorescence
【摘要】:Theproceduredescribedinthispracticeisdesignedtoprovideamethodbywhichthecoatingweightofchromiumtreatmentsonmetalsubstratesmaybedetermined.Thisprocedureisapplicablefordeterminationofthetotalcoatingweightandthechromiumcoatingweightofachromium-containingtreatment.1.1ThispracticecoverstheuseofX-rayfluorescence(XRF)techniquesfordeterminationofthecoatingweightofchromiumtreatmentsonmetalsubstrates.Thesetechniquesareapplicablefordeterminationofthecoatingweightaschromiumortotalcoatingweightofachromium-containingtreatment,orboth,onavarietyofmetalsubstrates.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H20
【国际标准分类号】:71_040_50
【页数】:3P.;A4
【正文语种】:


【英文标准名称】:Acoustics-Measurementofairbornenoiseemittedbysteamturbinesanddrivenmachinery
【原文标准名称】:声学.由蒸汽轮机和被驱动机器发出的气载噪音测量
【标准号】:BSEN61063-1996
【标准状态】:现行
【国别】:英国
【发布日期】:1996-07-15
【实施或试行日期】:1996-07-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:声学测量;涡轮机;试验条件;汽轮机;声学;声强;声测量;噪声;试验设备;报告
【英文主题词】:Acoustictesting;Acoustics;Machinenoise;Noisemeasurements;Soundpressure;Steamturbines;Turbines
【摘要】:1General1.1ThisInternationalStandardappliestothemeasurementofairbornenoiseemittedbyassembliescomprisingsteamturbinesanddrivenmachinery,hereinafterreferredtoasturbinesets.Thesesetsareofallsizeswithoutlimitationofoutputwhenfittedwiththeirnormalauxiliaries.Thisstandardappliesonlytothepartoftheturbineset(turbine,generatorandattachedcomponents)locatedabovetheflooroftheturbineroomandin-sideacontinuousenvelopingmeasurementsurfaceboundedbythisfloor.Anextensiveandcontinuousturbineoperatingfloorofareflectingnatureabovetheturbinefoundationfloorlevelshallbeconsideredasthereflectingplane.1.2Inthecaseoflargeturbinesets,theturbineoperatingfloorisoftenlocatedbelowandnearthehorizontalcentrelineoftheturbine(seefigure1).Ifthisflooriscontinuousandfreefromopeningswhichwouldotherwiseallownoiseradiatedbelowtheturbineoperatingfloortoinfluencethenoisemeasuredatmicrophonelocations,avalidmeasureoftheturbinesetnoiseemissionmaybeobtainedbyuseofthisstandard.1.3Inthecasewheretheturbineoperatingfloorislocatedbelowandnearthehorizontalcenterlineoftheturbineset,butconsistsof:a)anopengratingconstruction,orb)asolidfloorwithopeningsneartotheboundaryoftheturbineset,orc)walkwaystypically1to2mwideofeithersolidorgratedconstruction,theturbineoperatingfloorcannotbeconsideredasareflectingplane.Inthiscasethereflectingplanewillbetheturbinesetfoundationfloor.Inthecaseofthecontinuousenvelopingmeasurementsurfacebeingboundedbyeithertheturbineoperatingfloorortheturbinefoundationfloor,alargecontributionfromthenoiseofancillaryandauxiliaryplantiocatedbelowtheturbineoperatingfloormaybeexpectedatthemicrophonemeasuringpositions.Inthiscasetheuseofthisstandardforthedeterminationofsoundpowerlevelsisnotvalid.Ifthisstandardistobeemployedforthepurposeofthecomparisonofthe1msoundlevelsofsimilarturbines,theturbineoperatingfloorshallbeusedastheboundingsurfaceforthecontinuousenvelopingmeasurementsurface.Thevalidityofcomparativemeasure-mentswilldependonthenoisepresentatthemeasurementpositionsduetoauxiliaryandancillaryplantanditwillbenecessarytodefineexactlythenumber,typeandlocationoftheseitems.ItispreferabletoestablishtheeffectauxiliaryandancillaryplantnoiseradiationwillhaveonthesoundlevelatthemicrophonelocationsbydeterminingthenoiseemissionoftheseitemsinaccordancewithISO3746,anddeterminingthepropagationofthisnoisetomicro-phonelocations.However,thisprocedureisbeyondthescopeofthisstandard.NOTE-Whenopeningsintheflooraresuitablyblockedduringthetestwithappropriatepanels(uppersideofpanelsshouldhavesamereflectivecharacteristicsastheturbineoperatingfloor),validmeasure-mentsarepermitted.1.4Inthecaseofturbinesetsmountedon,orpartiallysubmergedin,thefoundationfloor,whichmayalsobedefinedastheturbineoperatingfloor,avalidmeasureoftheturbinesetnoiseemissionmaybeobtainedbyuseofthisstandard.1.5Wherenoisecontroltreatmentssuchasenclosuresand/orscreensarefittedtotheturbineset,drivenequipmentandauxiliaries,thetype,locationandextentoftreatmentshallbereported.2MeasurementuncertaintyMeasurementsmadeinconformitywiththisstandardtendtoresultinstandarddeviationswhichareequaltoorlessthanthosegivenintable1.NOTES1Ifthemethodspecifiedinthisstandardisusedtocomparethesoundpowerlevelsofsimilarmachinesthatareomnidirectionalandradiatebroadbandnoise,theuncertaintyinthiscomparisontendstoresultinastandarddeviationwhichisequaltoorlessthan3dBprovidedthatthemeasurementsareperf
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20;27_040
【页数】:26P;A4
【正文语种】:英语



版权声明:所有资料均为作者提供或网友推荐收集整理而来,仅供爱好者学习和研究使用,版权归原作者所有。
如本站内容有侵犯您的合法权益,请和我们取得联系,我们将立即改正或删除。
京ICP备14017250号-1