JB/T 8670-1997 YBDF2 系列阀门电动装置用隔爆型三相异步电动机 技术条件
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基本信息
标准名称: | YBDF2 系列阀门电动装置用隔爆型三相异步电动机 技术条件 |
英文名称: | Specification of YBDF2 series flameproof three phases asynchronous motor for electrical valve equipment |
中标分类: |
电工 >>
旋转电机 >>
防爆电机 |
发布日期: | 1997-12-17 |
实施日期: | 1998-02-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
归口单位: | 南阳防爆电气研究所 |
出版日期: | 1900-01-01 |
页数: | 12 页 |
批文号: | 机械科[1997]944号 |
适用范围
JB/T 8670-1997
前言
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目录
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引用标准
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所属分类: 电工 旋转电机 防爆电机
【英文标准名称】:StandardSpecificationforHighwayTrafficMonitoringDevices
【原文标准名称】:公共交通监测装置的标准规范
【标准号】:ASTME2300-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:E17.52
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:准确性;空中;认可试验;车行道(公路);封闭物;条件;合格;控制器;变换;数据;测定;电的;电子的;电子设备及元件;过滤器;流动特性;功能;道路;识别;模型;监测;监测装置;运动;职业;性能要求;气动的;定购单;继电器;要求;信号处理;信号;国际单位制;固定件;规范;运输;管;拐弯处;定型鉴
【英文主题词】:dataitem;detector;incidentdetection;interaxlespacing;laneoccupancy;sensor;trafficmonitoringdevice;vehiclecounter;vehicleclassification;vehicledetector;vehicleflowmeasurement;vehiclepassage;vehiclepresence;vehiclesensor;vehiclespeed
【摘要】:1.1ThisspecificationdescribestherecommendedprocedureforidentifyingtheperformanceandoperatingrequirementstobeincludedinapurchaseorderforTrafficMonitoringDevices.Assuch,thespecificationcanbereferencedbytheuserandsellerwhendeterminingcompliancewitheachspecifiedrequirement.ItistheintentofthisspecificationtohavetheuserrequirethesellertoprovideevidencethatthebrandandmodelofTMDofferedbythesellerhaspassedanapplicableType-approvalTest.IftheTMDhasnotpreviouslypassedaType-approvalTest,thenitistheintentofthisspecificationtohavethedevicetype-approvedbeforeitisacceptedbytheuser.IftheTMDhaspreviouslypassedaType-approvalTest,thenthisspecificationrequiresthattheproductionversionofthedeviceprovidedbythesellerpassanOn-siteVerificationTestbeforebeingacceptedbytheuser.1.2TrafficMonitoringDeviceATrafficMonitoringDevice(TMD)isequipmentthatcountsandclassifiesvehiclesandmeasuresvehicleflowcharacteristicssuchasvehiclespeed,laneoccupancy,turningmovements,intervehiclegaps,andotherparameterstypicallyusedtoportraytrafficmovement.TMDsusuallycontainasensingelementthatconvertsthesignal-generatingphenomenon(suchas,airpulsegeneratedbyavehicletirepassingoverapneumatictube)intoanelectricalsignalandelectronicsthatamplify,filter,andotherwiseconditionthesignal.SomeTMDsprovideoutputsasrelayorsolid-stateswitchclosures,whileotherscontainsignalprocessingthattranslatesthesignalintotherequiredvehicleandvehicleflowdata.TMDswhoseoutputsarerelayorsolidstateswitchclosuresmaybeconnectedtoroadsidecontrollers,whichprocesstheswitch-closureinformationandconvertitintovehicleflowdata.1.3CharacterizationofTrafficMonitoringDevicesThisspecificationclassifiesTrafficMonitoringDevicesbythefunctionstheyperform,thedatatheyprovide,therequiredaccuracyofthedata,andtheconditionsunderwhichthedeviceisexpectedtooperateinconformitywiththerequirementsdevelopedthroughthisspecification.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunits,whichareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:R10
【国际标准分类号】:03_220_20
【页数】:6P.;A4
【正文语种】:
【英文标准名称】:StandardTestMethodsforCadmiuminWater
【原文标准名称】:水中镉含量的标准试验方法
【标准号】:ASTMD3557-2002
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:含量测定;试验;水
【英文主题词】:Determinationofcontent;Testing;Water
【摘要】:
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:13P;A4
【正文语种】:英语