BS EN 12274-7-2005 泥浆表面修整.试验方法.振动磨擦试验
作者:标准资料网 时间:2024-05-20 21:34:03 浏览:9444
来源:标准资料网
【英文标准名称】:Slurrysurfacing-Testmethods-Shakingabrasiontest
【原文标准名称】:泥浆表面修整.试验方法.振动磨擦试验
【标准号】:BSEN12274-7-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2006-04-28
【实施或试行日期】:2006-04-28
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:磨蚀试验;敷沥青;地沥青;沥青;建筑;施工材料;乳剂;矿质集料;路面(道路);性能试验;合格试验;道路建筑;道路上层结构;灵敏度;污泥;表面保护覆层;测试;振动试验;水
【英文主题词】:
【摘要】:Thisdocumentspecifiesatestmethodfordeterminingthesuitabilityofaggregatesandcationicemulsionsforslurrysurfacingsand,whereappropriate,theeffectofindividualadditives.Thisdocumentappliestoslurrysurfacings.NOTE1Theprocedureusesastandardizedmixcompositionbutthemethodmayalsobeusedtoassesstheeffectofvariationsinthegradingandbindercontentbutthisuseisnotpartofthestandard.NOTE2Additivesaffectingthebreakingbehaviourmayalsobetestedunderstandardisedconditions.Thetestmayalsobeusedtostudytheeffectofaparticulartypeofbitumenoremulsifier.
【中国标准分类号】:Q20
【国际标准分类号】:93_080_20
【页数】:18P;A4
【正文语种】:英语
【英文标准名称】:Electricalaccessories-Circuit-beakersforovercurrentprotectionforhouseholdandsimilarinstallations-Circuitbreakersfora.c.operation
【原文标准名称】:家用和类似设施用的过电流保护断路器.交流操作断路器
【标准号】:BSEN60898-1-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-09-09
【实施或试行日期】:2003-09-09
【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】:分类系统;开关动力;小型断路器;电气工程;使用条件;电力设备;定义;低压电器;自动断路器;断路器;交流断路器;开关;寿命试验;试验条件;作标记;过流断路器;线路开关;家用;尺寸选定;过电流保护装置;额定值;特性;特性;电气设备;试验;设计;过电流;交流电流;家用设备
【英文主题词】:Abilitytoswitch;Alternatingcurrent;Alternating-currentcircuitbreakers;Auxiliarycircuits;Characteristics;Circuit-breakers;Clamps;Classificationsystems;Contactsafetydevices;Definition;Definitions;Design;Dimensioning;Electricalappliances;Electricalengineering;Electricalinstallations;Erecting(constructionoperation);Householdequipment;Householduse;Installations;Letterings;Lifetest;Lineswitch;Low-voltageequipment;Marking;Miniaturecircuit-breakers;Mountingconditions;Operatingconditions;Overcurrent;Overcurrentcircuit-breakers;Overcurrentprotection;Productinformation;Properties;Ratedvoltages;Ratings;Resistance;Routinechecktests;Self-actingcircuit-breakers;Switches;Switchingpower;Testing;Testingconditions
【摘要】:ThispartofIEC60898appliestoa.c.air-breakcircuit-breakersforoperationat50Hzor60Hz,havingaratedvoltagenotexceeding440V(betweenphases),aratedcurrentnotexceeding125Aandaratedshort-circuitcapacitynotexceeding25000A.Asfaraspossible,itisinlinewiththerequirementscontainedinIEC60947-2.Thesecircuit-breakersareintendedfortheprotectionagainstovercurrentsofwiringinstallationsofbuildingsandsimilarapplications;theyaredesignedforusebyuninstructedpeopleandfornotbeingmaintained.Theyareintendedforuseinanenvironmentwithpollutiondegree2.Theyaresuitableforisolation.Circuit-breakersofthisstandardaresuitableforuseinITsystemsprovidedthattherequirementsofHD384.4.473arecompliedwith.Thisstandardalsoappliestocircuit-breakershavingmorethanoneratedcurrent,providedthatthemeansforchangingfromonediscreteratingtoanotherisnotaccessibleinnormalserviceandthattheratingcannotbechangedwithouttheuseofatool.Thisstandarddoesnotapplyto-circuit-breakersintendedtoprotectmotors;-circuit-breakers,thecurrentsettingofwhichisadjustablebymeansaccessibletotheuser.Forcircuit-breakershavingadegreeofprotectionhigherthanIP20accordingtoEN60529,foruseinlocationswherearduousenvironmentalconditionsprevail(e.g.excessivehumidity,heatorcoldordepositionofdust)andinhazardouslocations(e.g.whereexplosionsareliabletooccur),specialconstructionsmayberequired.Requirementsforcircuit-breakersfora.c.andd.c.operationaregiveninEN60898-2.Requirementsforcircuit-breakerswhichincorporateresidualcurrenttrippingdevicesaretobefoundinEN61009-1andEN61009-2-1.Supplementaryrequirementsmaybenecessaryforcircuit-breakersofthescrew-intypes.Aguideforco-ordinationundershort-circuitconditionsbetweenacircuit-breakerandanothershort-circuitprotectivedevice(SCPDs)isgiveninannexD.NOTE1Formoresevereovervoltageconditions,circuit-breakerscomplyingwithotherstandards(e.g.IEC60947-2)shouldbeused.NOTE2Foranenvironmentwithahigherpollutiondegree,enclosuresgivingtheappropriatedegreeofprotectionshouldbeused.NOTE3Circuit-breakerswithinthescopeofthisstandardmayalsobeusedforprotectionagainstelectricshockincaseoffault,dependingontheirtrippingcharacteristicsandonthecharacteristicsoftheinstallation.Thecriterionofapplicationforsuchpurposesisdealtwithbyinstallationrules.NOTE4RecommendationsforthedimensionalcoordinationbetweenenclosuresandcircuitbreakersformountingonrailaccordingtoEN60715orequivalentmeansaregivenintheCENELECreportR023-001.Thisstandardcontainsallrequirementsnecessarytoensurecompliancewiththeoperationalcharacteristicsrequiredforthesedevicesbytypetests.Italsocontainsthedetailsrelativetotestrequirementsandmethodsoftestingnecessarytoensurereproducibilityoftestresults.Thisstandardstatesa)thecharacteristicsofcircuit-breakers;b)theconditionswithwhichcircuit-breakersshallcomply,withreferenceto:1)theiroperationandbehaviourinnormalservice;2)theiroperationandbehaviourincaseofoverload;3)theiroperationandbehaviourincaseofshort-circuitsuptotheirratedshort-circuitcapacity;4)theirdielectricproperties;c)thetestsintendedforconfirmingthattheseconditionshavebeenmetandthemethodstobeadoptedforthetests;d)thedatatobemarkedonthedevices;e)thetestsequencestobecarriedoutandthenumberofsamplestobesubmittedforcertificationpurposes(seeannexC);f)theco-ordinationundershort-circuitconditionswithanothershort-circuitprotectivedevice(SCPD)associatedinthesamecircuit(seeannexD);g)theroutineteststobecarriedoutoneachcircuit-breakertorevealun
【中国标准分类号】:K31
【国际标准分类号】:29_120_50
【页数】:142P.;A4
【正文语种】:英语
基本信息
标准名称: | 通信设施保护措施的维护 |
英文名称: | Maintenance of protective measures for telecom installations |
中标分类: |
通信、广播 >>
通信网 >>
通信网络综合 |
ICS分类: |
电信、音频和视频技术 >>
电信系统 >>
电信系统综合
|
发布部门: | 工业和信息化部 |
发布日期: | 2009-12-11 |
实施日期: | 2010-01-01 |
首发日期: | |
作废日期: | |
主管部门: | 中国通信标准化协会 |
提出单位: | 中国通信标准化协会 |
归口单位: | 中国通信标准化协会 |
起草单位: | 工业和信息化部电信研究院 |
起草人: | 陆冰松、孙向前、夏华 |
出版社: | 北京邮电大学出版社 |
出版日期: | 2010-01-01 |
适用范围
本标准适用于接地系统的维护、建筑物防雷保护措施的维护、通信系统防雷保护措施的维护、电力线感应保护措施的维护、电力线交越保护措施的维护、防腐蚀保护措施的维护及电源系统保护措施的维护。
本标准不适用于针对静电现象的保护措施和预防措施的维护。
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类: 通信 广播 通信网 通信网络综合 电信 音频和视频技术 电信系统 电信系统综合