【英文标准名称】:Floorheating.Systemsandcomponents.Part2:determinationofthethermaloutput.
【原文标准名称】:地板加热.系统和元件.第2部分:热输出的测定(欧洲标准EN1264-2)
【标准号】:NFP52-400-2-1998
【标准状态】:作废
【国别】:法国
【发布日期】:1998-11-01
【实施或试行日期】:1998-11-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:热效率;集中供暖;注册;实验的;数学计算;系统;办公楼;影响因素;加热技术;热流密度;热输出;热水集中供暖;认可实验室;加热设备;家用设施;额定值;加热装置;元部件;试验;热流;地板下供暖;测定;热力工程;建筑物;热环境系统;温水
【英文主题词】:Approvallaboratories;Buildings;Centralheating;Components;Determination;Domesticfacilities;Experimental;Heatengineering;Heatflow;Heatflowdensity;Heatingequipment;Heatinginstallations;Heatingtechnics;Hot-watercentralheating;Influencefactors;Mathematicalcalculations;Officebuildings;Ratings;Registration;Systems;Testing;Thermalefficiency;Thermalenvironmentsystems;Thermaloutput;Underfloorheating;Warmwater
【摘要】:
【中国标准分类号】:P45
【国际标准分类号】:91_140_10
【页数】:26P;A4
【正文语种】:其他


【英文标准名称】:ULStandardforSafetyProtectorsforDataCommunicationsandFireAlarmCircuits
【原文标准名称】:UL安全标准.数据通信和火警信号电路用保护器
【标准号】:UL497BBULLETIN-2007
【标准状态】:现行
【国别】:美国
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:1.1Theserequirementscoverprotectorsfordatacommunicationsandfire-alarmcircuits.1.2Ascoveredbytheserequirements,datacommunicationscircuitprotectorsandfire-alarmcircuitprotectorsconsistofsingle-andmultiple-pairair-gaparresters,gas-tubearresters,orsolid-statearresters,withorwithoutfusesorothervoltage-limitingdevices.Datacommunicationscircuitprotectorsandfire-alarmcircuitprotectorsareintendedtoprotectequipment,wiring,andpersonnelagainsttheeffectsofexcessivepotentialsandcurrentscausedbylightningincommunicationsalarm-initiatingoralarm-indicatingloopcircuits.1.3Thisstandarddoesnotcoverthefollowing:a)LightningprotectivedevicesfortheprotectionofprimarydistributionwiringsystemsandequipmentsuchasACbranchcircuitprotection.b)Antennadischargeunitsforradio-andtelevision-receivingappliances.c)Lightningconductorandairterminalsforconnectionoflightningrodsforbuildingprotection.d)Protectivedevicestobeusedontelephonelinesortelephonelinesconnectingtothetelecommunicationnetworks.1.4Aproductthatcontainsfeatures,characteristics,components,materials,orsystemsnewordifferentfromthoseinusewhenthestandardwasdeveloped,andthatinvolvesariskoffire,electricshock,orinjurytopersonsshallbeevaluatedusingtheappropriateadditionalcomponentandend-productrequirementsasdeterminednecessarytomaintainthelevelofsafetyfortheuseroftheproductasoriginallyanticipatedbytheintentofthisStandard.
【中国标准分类号】:K31
【国际标准分类号】:29_120_50
【页数】:
【正文语种】:英语