【英文标准名称】:Liveworking-Protectiveclothingagainstthethermalhazardsofanelectricarc-Part1-2:Testmethods-Method2:Determinationofarcprotectionclassofmaterialandclothingbyusingaconstrainedanddirectedarc(boxtest)
【原文标准名称】:带电作业.防止电弧热危害用防护服.第1-2部分:试验方法.方法2:使用受限定向电弧测定材料和衣料电弧防护等级(箱中试验)
【标准号】:IEC61482-1-2-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-01
【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/TC78
【标准类型】:()
【标准水平】:()
【中文主题词】:电弧焊接;校正;防护等级;服饰;定义;电弧;电力系统;电气工程;施压效果;初始温度;带电作业;维修;准备;防护服装;防护设备;额定值;耐力;安全准备;安全要求;试验室;试验设备;试验报告;试验结果;试样;试验;试验条件;试验准备工作;外观检查(试验)
【英文主题词】:Arcing;Calibration;Classesofprotection;Clothing;Definitions;Electricarcs;Electricpowersystems;Electricalengineering;Expressionofresult;Initialtemperature;Liveworking;Maintenance;Preparation;Protectiveclothing;Protectiveequipment;Ratings;Resistance;Safetyprovisions;Safetyrequirements;Testchamber;Testequipment;Testreports;Testresults;Testspecimens;Testing;Testingconditions;Testingset-ups;Visualinspection(testing)
【摘要】:ThispartofIEC61482specifiesmethodstotestmaterialandgarmentsintendedforuseinheat-andflame-resistantclothingforworkersexposedtoelectricarcs.IncontrasttothetestmethodsinIEC61482-1-11)adirectedandconstrainedelectricarcinalowvoltagecircuitisusedtoclassifymaterialandclothingindefinedarcprotectionclasses.Thetestmethodsspecifiedinthisdocumentareaimedatrenderingadecisionwhetherarcthermalprotectionismetunderdefinedconditions.Twoprotectionclassesaretested.Protectionclass1andprotectionclass2aresafetyrequirementscoveringactualriskpotentialsduetoelectricfaultarcs.NOTE1Inpracticetherecanbehigherrisks.Ariskanalysisshouldclarifytheactualrisk.Thetestmethodsarenotdirectedtowardmeasuringthearcthermalperformancevalue(ATPV).MethodsdeterminingtheATPVareprescribedinIEC61482-1-1.Thisstandardspecifiestestswithwhichitispossibletoevaluatematerialsandprotectiveclothingbasedontheuseofadirectedandconstrainedelectricarcunderdefinedlaboratoryconditions(box-test).Apracticalscenarioconcerningtestset-upandtestconditions,electricalandconstructionalparametersisselected.Forthetestsalowvoltageprocedureisused.Thetestscanoptionallybecarriedoutintwofixedtestclasses,selectedbytheamountofprospectiveshortcircuitcurrent:Class14kA;Class27kA.Thedefineddurationoftheelectricarcis500msinbothtestclasses.NOTE2Theseconditionsrepresente.g.lowvoltageenvironmentalconditionsduringanelectricfault.Materialsandclothingwillbetestedwithtwomethods:thematerialboxtestmethodandthegarmentboxtestmethod.Thematerialboxtestmethodisusedtomeasureandfindmaterialresponsetoanarcexposurewhentestedinaflatconfiguration.Aquantitativemeasurementofthearcthermalperformanceismadebymeansoftheenergytransmittedthroughthematerial.Thegarmentboxtestmethodisusedtotestthefunctionoftheprotectiveclothingafteranarcexposure,includingallthegarmentfindings,sewingtread,fasteningsandotheraccessories;noheatfluxwillbemeasured.Testingreferstothethermalarceffects;itdoesnotapplytoothereffectslikenoise,lightemissions,pressurerise,hotoil,electricshock,theconsequencesofphysicalandmentalshockortoxicinfluences.
【中国标准分类号】:C73;K09;K34
【国际标准分类号】:13_220_40;13_260;13_340_10;29_260;29_260_99
【页数】:55P.;A4
【正文语种】:英语


【英文标准名称】:Plastics-Unplasticizedcelluloseacetate-Determinationofaceticacidyield
【原文标准名称】:塑料.未增塑的乙酸纤维素.乙酸含量的测定
【标准号】:BSENISO1597-1995
【标准状态】:作废
【国别】:英国
【发布日期】:1995-08-15
【实施或试行日期】:1995-08-15
【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】:塑料;定量分析;含量测定;乙酸酯;纤维素衍生物;容量分析;乙酸纤维素;乙酸;化学分析和试验
【英文主题词】:determinationofcontent;plastics;definitions;cellulosederivatives;volumetricanalysis;definition;celluloseacetate;unplasticized;chemicalanalysisandtesting;aceticacid
【摘要】:
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:14P;A4
【正文语种】:英语