JB 3630-1984 涂附磨具用磨料粒度组成

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Product Code:SAE AMS2252
Title:Tolerances, Low-Alloy Steel Sheet, Strip, and Plate
Issuing Committee:Ams E Carbon And Low Alloy Steels Committee
Scope:This specification covers established inch/pound manufacturing tolerances applicable to low-alloy steel sheet, strip, and plate ordered to inch/pound dimensions. These tolerances apply to all conditions unless otherwise noted. The term 'excl' is used to apply only to the higher figure of the specified range.【英文标准名称】:Lampcontrolgear-Part2-2:Particularrequirementsford.c.ora.c.suppliedelectronicstep-downconvertorsforfilamentlamps
【原文标准名称】:灯的控制装置第2-2部分:白炽灯用交、直流电子降压转换器的特殊要求
【标准号】:IEC61347-2-2-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-10
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC34C
【标准类型】:()
【标准水平】:()
【中文主题词】:防电击;电气设备;试验;接地导线;规范(验收);电灯;电气工程;介电装置;安全要求;设备安全;电气安全;连接;设计;仪器;照明工程;直流电流;测定;绝缘;接线端;灯;交流电流;转炉(金属)
【英文主题词】:Alternatingcurrent;Ballasts;Connections;Contactsafetydevices;Convertors(metals);Definitions;Design;Determination;Dielectricstrength;Directcurrent;Earthconductors;Electriclamps;Electricterminals;Electricalappliances;Electricalengineering;Electricalsafety;Equipmentsafety;Filamentlamps;Filaments(lamps);Illuminationengineering;Incandescentlamps;Inscription;Instruments;Insulations;Lamps;Letterings;Lightingsystems;Protectionagainstelectricshocks;Safetyrequirements;Specification(approval);Testing
【摘要】:ThispartofIEC61347specifiesparticularsafetyrequirementsforelectronicstep-downconvertersforuseond.c.suppliesupto250Vora.c.suppliesupto1000Vat50Hzor60Hzandratedoutputvoltage≤50Vr.m.s,atafrequencydeviatingfromthesupplyfrequencyor≤50Vunsmoothedd.c.betweenconductorsorbetweenanyconductorandearth,associatedwithtungsten-halogenlampsasspecifiedinIEC60357andotherfilamentlamps.NOTEThelimitof50VratedoutputvoltageisinaccordancewithbandIofIEC60449.Particularrequirementsforelectronicstep-downconvenorswithmeansofprotectionagainstoverheatingaregiveninannexC.ParticularrequirementsforstationaryindependentSELVconvertors,whicharepartofthewiringininstallations,aregiveninannexI.PerformancerequirementsarecoveredbyIEC61047.Plug-inconvertors,beingpartoftheluminaire,arecoveredasforbuilt-inconvertorsbytheadditionalrequirementsoftheluminairestandard.
【中国标准分类号】:K72
【国际标准分类号】:29_140_99
【页数】:69P;A4
【正文语种】:英语