BS EN 674-1998 建筑玻璃.热传递系数(U值)测定.护热板法
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【英文标准名称】:Glassinbuilding-Determinationofthermaltransmittance(Uvalue)-Guardedhotplatemethod
【原文标准名称】:建筑玻璃.热传递系数(U值)测定.护热板法
【标准号】:BSEN674-1998
【标准状态】:作废
【国别】:英国
【发布日期】:1998-06-15
【实施或试行日期】:1998-06-15
【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】:门窗玻璃;热传递;热测量;数学计算;多倍;试验条件;密封单元;热量测量;双层玻璃;热传递系数;试样;报告;建筑系统构件;热阻;试验设备;试样制备;玻璃;隔热
【英文主题词】:Construction;Determination;Glass;Glassforbuildingpurposes;Glazing;Heattransmission;Measurement;Measuringtechniques;Multiple;Multipleglazing;Testequipment;Thermalinsulation;Thermalprotection;Thermalresistance;Thermaltransmittance;U-values;Windowglass;Windows
【摘要】:ThisEuropeanStandardspecifiesameasurementmethodtodeterminethethermaltransmittanceofglazingwithflatandparallelsurfaces.Structuredsurfaces,e.g.patternedglass,maybeconsideredtobeflatThisEuropeanStandardappliestomultipleglazingwithouterpaneswhicharenottransparenttofarinfraredradiation,whichisthecaseforsodalimesilicateglassproducts(calledhereaftersodalimeglass),borosilicateglassandglassceramics.Internalelementsmaybefarinfraredtransparent.TheprocedurespecifiedinthisEuropeanStandarddeterminestheUvalue(thermaltransmittance)inthecentralareaofglazing.Theedgeeffectsduetothethermalbridgethroughthespacerofasealedglazingunitorthroughthewindowframearenotincluded.Furthermore,energytransferduetosolarradiationisnottakenintoaccountThedocumentforthecalculationoftheoverallUvalueofwindows,doorsandshutters(seeA.1)givesnormativereferencetotheUvalueevaluatedfortheglazingcomponentsaccordingtothisstandard.Averticalpositionoftheglazingisspecified,Uvaluesevaluatedaccordingtothepresentstandardareusedforproductcomparisonaswellasforotherpurposes,inparticularforpredicting:—heatlossthroughglazing;—conductionheatgainsinsummer;—condensationonglazingsurfaces;—theeffectsoftheabsorbedsolarradiationindeterminingthesolarfactor(seeA.2).ReferenceshouldbemadetoA.3,A.4orotherEuropeanStandardsdealingwithheatlosscalculationsfortheapplicationofglazingUvaluesdeterminedbythisstandard.Thedeterminationofthethermaltransmittanceisperformedforconditionswhichcorrespondtotheaveragesituationforglazinginpractice.note:1)Insomecountriesthesymbolkhasbeenusedhitherto.
【中国标准分类号】:Q33
【国际标准分类号】:81_040_20
【页数】:10P;A4
【正文语种】:英语
【原文标准名称】:建筑玻璃.热传递系数(U值)测定.护热板法
【标准号】:BSEN674-1998
【标准状态】:作废
【国别】:英国
【发布日期】:1998-06-15
【实施或试行日期】:1998-06-15
【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】:门窗玻璃;热传递;热测量;数学计算;多倍;试验条件;密封单元;热量测量;双层玻璃;热传递系数;试样;报告;建筑系统构件;热阻;试验设备;试样制备;玻璃;隔热
【英文主题词】:Construction;Determination;Glass;Glassforbuildingpurposes;Glazing;Heattransmission;Measurement;Measuringtechniques;Multiple;Multipleglazing;Testequipment;Thermalinsulation;Thermalprotection;Thermalresistance;Thermaltransmittance;U-values;Windowglass;Windows
【摘要】:ThisEuropeanStandardspecifiesameasurementmethodtodeterminethethermaltransmittanceofglazingwithflatandparallelsurfaces.Structuredsurfaces,e.g.patternedglass,maybeconsideredtobeflatThisEuropeanStandardappliestomultipleglazingwithouterpaneswhicharenottransparenttofarinfraredradiation,whichisthecaseforsodalimesilicateglassproducts(calledhereaftersodalimeglass),borosilicateglassandglassceramics.Internalelementsmaybefarinfraredtransparent.TheprocedurespecifiedinthisEuropeanStandarddeterminestheUvalue(thermaltransmittance)inthecentralareaofglazing.Theedgeeffectsduetothethermalbridgethroughthespacerofasealedglazingunitorthroughthewindowframearenotincluded.Furthermore,energytransferduetosolarradiationisnottakenintoaccountThedocumentforthecalculationoftheoverallUvalueofwindows,doorsandshutters(seeA.1)givesnormativereferencetotheUvalueevaluatedfortheglazingcomponentsaccordingtothisstandard.Averticalpositionoftheglazingisspecified,Uvaluesevaluatedaccordingtothepresentstandardareusedforproductcomparisonaswellasforotherpurposes,inparticularforpredicting:—heatlossthroughglazing;—conductionheatgainsinsummer;—condensationonglazingsurfaces;—theeffectsoftheabsorbedsolarradiationindeterminingthesolarfactor(seeA.2).ReferenceshouldbemadetoA.3,A.4orotherEuropeanStandardsdealingwithheatlosscalculationsfortheapplicationofglazingUvaluesdeterminedbythisstandard.Thedeterminationofthethermaltransmittanceisperformedforconditionswhichcorrespondtotheaveragesituationforglazinginpractice.note:1)Insomecountriesthesymbolkhasbeenusedhitherto.
【中国标准分类号】:Q33
【国际标准分类号】:81_040_20
【页数】:10P;A4
【正文语种】:英语
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