NF T51-427-1983 塑料.液态或溶解酚树脂.乌伯劳德粘度计测定运动粘度
作者:标准资料网 时间:2024-05-05 08:47:11 浏览:8914
来源:标准资料网
【英文标准名称】:PLASTICS.LIQUIDORSOLUTEPHENOLICRESINS.MEASUREMENTOFKINEMATICVISCOSITYUSINGANDUBBELOHDEVISCOSIMETER.
【原文标准名称】:塑料.液态或溶解酚树脂.乌伯劳德粘度计测定运动粘度
【标准号】:NFT51-427-1983
【标准状态】:作废
【国别】:法国
【发布日期】:1983-12
【实施或试行日期】:1983-11-30
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:校正;设备;可溶物质;溶质;乌别洛赫特粘度计;滴点装置;运动粘度;液体;规程;酚醛塑料;酚醛树脂;尺寸;设备容纳设施;试验条件;塑料;测量
【英文主题词】:
【摘要】:
【中国标准分类号】:G31
【国际标准分类号】:
【页数】:5P;A4
【正文语种】:其他
【英文标准名称】:Safetyofpowertransformers,powersupplies,reactorsandsimilarproducts-Particularrequirementsandtestsfortransformersandpowersuppliesfortoys
【原文标准名称】:电力变压器、电源、电抗器和类似产品的安全.第2-7部分:玩具用变压器和电源的特殊要求和试验
【标准号】:BSEN61558-2-7-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-12-31
【实施或试行日期】:2007-12-31
【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】:应用;电气工程;电源设备;供电系统;功率变压器;小功率变压器;规范(验收);测试;玩具变压器;玩具;变压器
【英文主题词】:Applications;Definitions;Dimensioning;Electricalengineering;Electricalsafety;Firesafety;Mainsunits;Powersupplysystem;Powertransformers;Protectionagainstelectricshocks;Short-circuitprotection;Small-powertransformers;Specification(approval);Testing;Toytransformer;Toys;Transformers
【摘要】:Replacement:ThispartofIEC61558dealswithsafetyaspectsoftransformersfortoysandpowersuppliesincorporatingtransformersfortoyssuchaselectrical,thermalandmechanicalsafety.ThisPart2-7isapplicabletotransformersfortoysandpowersuppliesincorporatingbothtransformersfortoysandelectroniccircuits.ThisPart2-7isnotapplicabletoexternalcircuitsandtheircomponentsintendedtobeconnectedtotheinputterminals,outputterminalsorsocket-outletsofthetransformersandpowersupplies.ThisPart2-7appliestostationaryandportable,single-phase,air-cooled(naturalorforced),transformersfortoysandpowersuppliesincorporatingtransformersfortoys,havingaratedsupplyvoltagenotexceeding250Va.c.,aratedsupplyandinternaloperatingfrequencynotexceeding500Hz,aratedoutputnotexceeding200VAandaratedoutputcurrentnotexceeding10A.ThisPart2-7isapplicabletoindependenttransformersandtransformersforspecificuse.ThisPart2-7isapplicabletodry-typetransformersfortoys.Thewindingsmaybeencapsulatedornon-encapsulated.Theno-loadoutputvoltagedoesnotexceed33Va.c.fortransformersfortoysandpowersuppliesincorporatingtransformersfortoys,or46Vripple-freed.c.forpowersuppliesincorporatingtransformersfortoys,andtheratedoutputvoltagedoesnotexceed24Va.c.fortransformersandpowersupplies,or33Vripple-freed.c.forpowersupplies.Ingeneral,thisPart2-7doesnottakeintoconsiderationchildrenplayingwiththetransformersfortoysandpowersuppliesincorporatingtransformersfortoys.NOTE1Attentionisdrawntothefollowing:–fortransformersfortoysandpowersuppliesincorporatingtransformersfortoysintendedtobeusedinvehicles,onboardships,andaircraft,additionalrequirements(fromotherapplicablestandards,nationalrules,etc.)maybenecessary;–measurestoprotecttheenclosureandthecomponentsinsidetheenclosureagainstexternalinfluencessuchasfungus,vermin,termites,solar-radiation,andicingshouldalsobeconsidered;–thedifferentconditionsfortransportation,storage,andoperationofthetransformersfortoysandpowersuppliesincorporatingtransformersfortoysshouldalsobeconsidered;–additionalrequirementsinaccordancewithotherappropriatestandardsandnationalrulesmaybeapplicabletotransformersfortoysandpowersuppliesincorporatingtransformersfortoysintendedforuseinspecialenvironments,suchastropicalenvironments.NOTE2Futuretechnologicaldevelopmentoftransformersandpowersuppliesmaynecessitateaneedtoincreasetheupperlimitofthefrequencies;untilthen,thisPart2-7maybeusedasaguidancedocument.
【中国标准分类号】:K41
【国际标准分类号】:29_180
【页数】:22P.;A4
【正文语种】:英语
