【英文标准名称】:Safetyofpowertransformers,powersupplyunitsandsimilar-Particularrequirementsfortransformersforswitchmodepowersupplies
【原文标准名称】:电源变压器、供电设备及类似设备安全性.开关式供电系统变压器专门要求
【标准号】:BSEN61558-2-17-1998
【标准状态】:作废
【国别】:英国
【发布日期】:1998-01-15
【实施或试行日期】:1998-01-15
【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】:电绝缘;作标记;隔离变压器;温度;电气设备;电力系统;安全工程;变压器;通路;余隙距离;额定电压;开关式供电系统;电气安全;短路电流;小功率变压器;干式变压器;额定功率;安全隔离变压器;电力变压器;额定频率
【英文主题词】:Circuits;Definitions;Dimensioning;Dry-typetransformers;Electricalengineering;Electricalsafety;Firesafety;Isolatingtransformers;Mainstransformers;Mainsunits;Performance;Powersupplysystem;Powertransformers;Protectionagainstelectricshocks;Safetyisolatingtransformers;Short-circuitprotection;Small-powertransformers;Specification(approval);Supplyunits;Switchingnetworks;Testing;Transformers;Use
【摘要】:Replacement:Thispart2ofIEC61558appliestoassociatedpowertransformersforswitchmodepowersupplies,single-phaseorpolyphase,air-cooled:-separatingtransformers;-isolatingtransformers;-safetyisolatingtransformers,havingaratedsupplyvoltagenotexceeding1000Va.c.andaratedfrequencyof500Hzto1MHz,theratedoutputnotexceeding:-10kVAforsingle-phasetransformers;-16kVAforpolyphasetransformers.NOTE1-Forhigherfrequencies,thisstandardmaybeusedasaguide.Theno-loadoutputvoltageortheratedoutputvoltagedonotexceed:-1000Va.c.or1415Vripple-freed.cforseparatingtransformers;-500Va.c.or708Vripple-freed.cforisolatingtransformers.NOTE2-Forisolatingtransformers,theratedoutputvoltagemaybeupto1000Va.c.or1415Vripple-freed.c.inaccordancewiththenationalwiringrulesordesignedforspecialpurposes.-50Va.c.r.m.s.and/or120Vripple-freed.cforsafetyisolatingtransformers.Thisstandardisapplicabletodrytypetransformers.Thewindingsmaybeencapsulatedornon-encapsulated.NOTES3Fortransformersfilledwithliquiddielectricorpulverizedmaterial,suchassand,additionalrequirementsareunderconsideration.4Inlocationswherespecialenvironmentalconditionsprevail,particularrequirementsmaybenecessaryInaccordancewithIEC364-5-51.5Forhigheroutputno-loadvoltages,additionalrequirementsarenecessarybutthissectionmaybeusedasaguide.
【中国标准分类号】:K41
【国际标准分类号】:29_180
【页数】:18P.;A4
【正文语种】:英语


MIL-STD-21A, MILITARY STANDARD: WELDED-JOINT DESIGNS, ARMORED-TANK TYPE (26 NOV 1968) [S/S BY MIL-HDBK-21]., This standard covers the design of joints for structures when one or more of the materials being joined is armor.