基本信息
标准名称: | 电动工具用串励电动机B级绝缘结构寿命的评定 |
英文名称: | Life evaluation of class B insulation systems for series-excitation motor of electric tools |
中标分类: |
电工 >>
电气设备与器具 >>
电动工具 |
ICS分类: |
机械制造 >>
手持工具 >>
电动工具
|
替代情况: | JB/T 5357-1991 |
发布部门: | 国家经济贸易委员会 |
发布日期: | 2002-07-16 |
实施日期: | 2002-12-02 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
归口单位: | 全国电动工具标委会 |
出版社: | 机械工业出版社 |
出版日期: | 1900-01-01 |
页数: | 9 页 |
批文号: | 经贸委公告[2002]44号 |
适用范围
本标准规定了一般环境使用条件下电动工具用串励电动机B级绝缘结构寿命的评定方法。用于测定温度等级为130℃(B级)单相交流电压不超过250V的电动工具用串励电动机的绝缘结构。
前言
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引用标准
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所属分类: 电工 电气设备与器具 电动工具 机械制造 手持工具 电动工具
【英文标准名称】:StandardSpecificationforZinc,TinandCadmiumBaseAlloysUsedasSolders
【原文标准名称】:锌、锡和镉基焊料的标准规范
【标准号】:ASTMB907-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:B02.04
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:镉;材料试验;金属加工;焊料合金;锌合金
【英文主题词】:bar;ingot;zinc-aluminumalloys;zinc-aluminum-copperalloys;tin-zincalloys;zinc-tinalloys;zinc-tin-copperalloys;zinc-cadmiumalloys;tin-cadmium-zincalloys;cadmium-zincalloys;cadmium-zinc-silveralloys;cadmium-silveralloys;powder;ribbon;solderalloy;soldermetal;solderuses;wire
【摘要】:1.1Thisspecificationcoverssoldermetalalloys(commonlyknownassoftsolders),includingzinc-aluminum,zinc-aluminum-copper,zinc-tin,zinc-tin-copper,zinc-cadmium-tin,zinc-cadmium,tin-zinc,cadmium-zinc,cadmium-zinc-silver,andcadmium-silver,usedassoldersforthepurposeofjoiningtogethertwoormoremetalsattemperaturesbelowtheirmeltingpoints.1.1.1CertainalloysspecifiedinthisstandardarealsousedasThermalSprayWireintheelectronicsindustryandarecoveredforthispurposeinSpecificationB943.SpecificationB833coversZincandZincAlloyWireforThermalSpraying(Metallizing)usedprimarilyforthecorrosionprotectionofsteel(asnotedintheAnnexpartofthisspecification).1.1.2TinbasealloysareincludedinthisspecificationbecausetheiruseintheelectronicsindustryisdifferentthanthemajoruseofthetinandleadsoldercompositionsspecifiedinSpecificationB32.1.1.3Thesesoldersincludealloyshavinganominalliquidustemperaturenotexceeding850176;F(455176;C).1.1.4Thisspecificationincludessolderintheformofsolidbars,ingots,wire,powderandspecialforms,andintheformofsolderpaste.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Toxicity8212;Warning:Solubleandrespirableformsofcadmiummaybeharmfultohumanhealthandtheenvironmentincertainformsandconcentrations.Therefore,ingestionandinhalationofcadmiumshouldbecontrolledundertheappropriateregulationsoftheU.S.OccupationalSafetyandHealthAdministration(OSHA).Cadmium-containingalloysandcoatingsshouldnotbeusedonarticlesthatwillcontactfoodorbeverages,orfordentalandotherequipmentthatisnormallyinsertedinthemouth.Similarly,ifarticlesusingcadmium-containingalloysorcoatingsarewelded,soldered,brazed,ground,flame-cut,orotherwiseheatedduringfabrication,adequateventilationmustbeprovidedtomaintainoccupationalcadmiumexposurebelowtheOSHAPermissibleExposureLevel(PEL).1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.ItistheresponsibilityoftheuserofthisstandardtobecomefamiliarwithallhazardsincludingthoseidentifiedintheappropriateMaterialSafetyDataSheet(MSDS)forthisproduct/materialasprovidedbythemanufacturer,toestablishappropriatesafetyandhealthpractices,anddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J33
【国际标准分类号】:
【页数】:6P.;A4
【正文语种】: