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DL/T 474.5-1992 现场绝缘试验实施导则 避雷器试验

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基本信息
标准名称:现场绝缘试验实施导则 避雷器试验
中标分类: 电工 >> 电工综合 >> 基础标准与通用方法
替代情况:被DL/T 474.5-2006代替
发布日期:1900-01-01
实施日期:1992-12-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
页数:9页
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所属分类: 电工 电工综合 基础标准与通用方法
【英文标准名称】:Audio,videoandsimilarelectronicapparatus-Safetyrequirements
【原文标准名称】:音频,视频和类似电器.安全性要求
【标准号】:IEC60065Edition7.2-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-02-01
【实施或试行日期】:2011-02-01
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC108
【标准类型】:()
【标准水平】:()
【中文主题词】:附件;天线放大器;音频设备;组件;连接件;接触安全装置;定义(术语);家用的;电接触保护;电气元件;电气工程;电气设备;家用电器具;电气安全性;电子的;电子工程;电子设备及元件;电子仪器;电子装置;设备安全性;耐火性;防火安全性;加热;家用设备;家用;内爆防护;批注;绝缘件;干扰;电力操纵;电力网供电;作标记;显像管;辐射;唱机;遥控;遥控系统;安全规则;安全性要求;防水的;材料强度;电视接收机;试验;视频设备
【英文主题词】:Accessories;Aerialamplifiers;Audioappliances;Components;Connections;Contactsafetydevices;Definitions;Domestic;Electriccontactprotection;Electricalcomponents;Electricalengineering;Electricalequipment;Electricalhouseholdappliances;Electricalsafety;Electronic;Electronicengineering;Electronicequipmentandcomponents;Electronicinstruments;Electronically-operateddevices;Equipmentsafety;Fireresistance;Firesafety;Heating;Householdequipment;Householduse;Implosionprotection;Inscription;Insulations;Interferences;Mainsoperated;Mainspowersupply;Marking;Picturetubes;Radiation;Record-players;Remotecontrol;Remotecontrolsystems;Safetyregulations;Safetyrequirements;Splashproof;Strengthofmaterials;Televisionreceivers;Testing;Videoequipment
【摘要】:ThisInternationalSafetyStandardappliestoelectronicapparatusdesignedtobefedfromtheMAINS,fromaSUPPLYAPPARATUS,frombatteriesorfromREMOTEPOWERFEEDINGandintendedforreception,generation,recordingorreproductionrespectivelyofaudio,videoandassociatedsignals.Italsoappliestoapparatusdesignedtobeusedexclusivelyincombinationwiththeabove-mentionedapparatus.Thisstandardprimarilyconcernsapparatusintendedforhouseholdandsimilargeneralusebutwhichmayalsobeusedinplacesofpublicassemblysuchasschools,theatres,placesofworshipandtheworkplace.PROFESSIONALAPPARATUSintendedforuseasdescribedaboveisalsocoveredunlessfallingspecificallywithinthescopeofotherstandards.Thisstandardconcernsonlysafetyaspectsoftheaboveapparatus;itdoesnotconcernothermatters,suchasstyleorperformance.Thisstandardappliestotheabove-mentionedapparatus,ifdesignedtobeconnectedtotheTELECOMMUNICATIONNETWORKorsimilarnetwork,forexamplebymeansofanintegratedmodem.Someexamplesofapparatuswithinthescopeofthisstandardare:–receivingapparatusandamplifiersforsoundand/orvision;–independentLOADTRANSDUCERSandSOURCETRANSDUCERS;–SUPPLYAPPARATUSintendedtosupplyotherapparatuscoveredbythescopeofthisstandard;–ELECTRONICMUSICALINSTRUMENTS,andelectronicaccessoriessuchasrhythmgenerators,tonegenerators,musictunersandthelikeforusewithelectronicornon-electronicmusicalinstruments;–audioand/orvideoeducationalapparatus;–videoprojectors;
【中国标准分类号】:M73
【国际标准分类号】:97_020
【页数】:330P.;A4
【正文语种】:英语


【英文标准名称】:Materialsandarticlesincontactwithfoodstuffs-Plastics-Alternativetestmethodstomigrationintofattyfoodsimulantsbyrapidextractionintoiso-octaneand/or95%ethanol
【原文标准名称】:与食品接触的材料和制品.塑料.快速萃取异辛烷和或95%酒精的脂肪食品塑料析出物渗移量的交替试验方法
【标准号】:BSEN1186-15-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-10-14
【实施或试行日期】:2002-10-14
【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】:物品;触点;酒精;萃取;脂肪;食品检验;食品包装;食品;食品料;浸渍;试验研究;异辛烷;材料;接触食品的材料;材料规范;材料测试;迁移;抗渗移性;塑料;试验媒体;试件;试验
【英文主题词】:Articles;Contact;Ethanol;Extraction;Fats;Foodinspection;Foodpackages;Foodproducts;Foodstuff;Immersion;Investigations;Isooctane;Materials;Materialsincontactwithfood;Materialsspecification;Materialstesting;Migration;Migrationresistance;Plastics;Testmedia;Testpieces;Testing
【摘要】:ThisEuropeanStandardspecifiestwoalternativetestmethods,inthesenseofanextractiontestwitha'moresevere'testcharacter,fortheassessmentoftheoverallmigrationintofattyfoodsimulants.MethodAisbasedonthedeterminationoftheextractionofmigrateablesubstancesfromplasticswhichareintendedtocomeintocontactwithfoodstuffs,bytotalimmersioninnon-polar,iso-octane,and/orpolar,ethanol,solventsdependingonthepolarityofthepackagingmaterial.Accordingtoresultsobtainedbythismethod(see[1],[2],[3],[4],[5])andtakingphysio-chemicalconsiderationsintoaccount,theobtainedextractionefficiencyhas,generally,beenfoundtobeequivalenttoorhigherthanoverallmigrationresultsobtainedunderthetestconditions,10daysat40°C,2hat70°C,1hat100°C,30minat121°Cand30minat130°C.Toensureascompleteaspossibleextractionofthepotentialmigrants,astronginteraction,e.g.swelling,ofthesamplebytheextractionsolventisnecessary.Forthispurpose,iso-octaneisusedasanextractionsolventforplasticsmaterialsandarticlescontainingnonpolarfoodcontactlayers,suchaspolyolefins.Fortestsamplesmadefrompolarfoodcontactplasticssuchaspolyamideandpolyethyleneterephthalate,95%(v/v)aqueousethanolisused.Forpolystyrenes,plasticizedpolyvinylchlorideandotherpolymerswheretheidentificationorpolarityofthepolymerisnotclear,twoparallelextractiontestsshouldbeconductedusingbothoftheproposedextractionsolventsandtakingthehighervalueobtainedastherelevantresult.NOTE1Incaseofmultilayerstructuressuchasplasticslaminatesandco-extrudedplastics,thenatureofthefoodcontactlayerdeterminestheselectionoftheextractionsolvent(s).Thistestmethodshouldonlybeappliedtoflexiblepackagingswhicharelessthan300μminthickness.WhentheresultdoesnotexceedtheallowedoverallmigrationlimitthenthematerialcanbeconsideredtobeincompliancewithECregulations.Ifthetestresultexceedstheallowedoverallmigrationlimitthefollowingoptionsmaybeappliedchronologicallywithrespecttofurthermigrationtesting:1)single-sidedextractiontestusingacell,iftechnicallyfeasible(seeclause4MethodBofthisstandard);2)conventionalmigrationtestusingoliveoilorotherfattyfoodsimulants;NOTE2TheoverallmigrationlimitisspecifiedinCommissionDirective90/128/EEC[7]andtheconditionsoftestinCouncilDirective82/711/EEC[8]anditssubsequentamendments,[9],[10].MethodBisapplicableinthosecaseswherethetotalimmersiontest,EN1186-15MethodA,yieldstotalextractionvaluesthatexceedtheoverallmigrationormaybetechnicallyunsuitable,i.e.inthecaseofmultilayerstructures,suchasplasticslaminatesandco-extrudedfilms.Thistestmethodshouldprimarilyonlybeappliedtoflexiblepackagingswithaphysicalbarrierlayer(forinstanceofaluminiumorothermaterialtopreventpenetrativelossofextractionsolvent)andwhichhaveathinnerfoodcontactlayerthan300μm.IftheresultdoesnotexceedtheallowedoverallmigrationlimitthenthematerialcanbeconsideredtobeincompliancewithECregulations.Ifthetestresultexceedstheallowedoverallmigrationlimitthenthefollowingoptionmaybeappliedwithrespecttofurthermigrationtesting:-conventionalmigrationtestusingoliveoilorotherfattyfoodsimulants.NOTE3MethodsAandBarenotapplicabletotestmaterialsintendedforapplicationsover130°C.NOTE4Testmaterialsintendedforapplicationsover70°Cshouldbecheckedfortheirphysicalsuitabilityattheintendedtimeandtemperatureofuse.
【中国标准分类号】:X08;C53
【国际标准分类号】:67_250
【页数】:20P;A4
【正文语种】:英语