JB/T 50131-1999 高压输电线路保护屏(柜) 产品质量分等
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基本信息
| 标准名称： | 高压输电线路保护屏(柜) 产品质量分等 |
| 中标分类： | 电工 >> 低压电器 >> 低压配电电器 |
| 发布部门： | 全国量度继电器标委会 |
| 发布日期： | 1999-12-30 |
| 实施日期： | 2000-06-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
适用范围
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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 低压电器 低压配电电器
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【英文标准名称】:StandardPracticeforDeterminingtheActivationSpectrumofaMaterial(WavelengthSensitivitytoanExposureSource)UsingtheSharpCut-OnFilterorSpectrographicTechnique
【原文标准名称】:用锐截止-打开滤波器或光谱方法测定材料激活光谱(对辐照源的波长敏感性)的标准实施规程
【标准号】:ASTMG178-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:G03.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:activationspectrum;cumulativespectralsensitivitycurve;degradation;lightexposure;sharpcut-onfiltertechnique;spectrographictechnique;ultravioletradiation;Actinicradiation;Activationenergy;Lightexposure;Sharpcut-onfiltertechni
【摘要】:Theactivationspectrumidentifiesthespectralregion(s)ofthespecificexposuresourceusedthatmaybeprimarilyresponsibleforchangesinappearanceand/orphysicalpropertiesofthematerial.Thespectrographictechniqueusesaprismorgratingspectrographtodeterminetheeffectonthematerialofisolatednarrowspectralbandsofthelightsource,eachintheabsenceofotherwavelengths.Thesharpcut-onfiltertechniqueusesaspeciallydesignedsetofsharpcut-onUV/visibletransmittingglassfilterstodeterminetherelativeactiniceffectsofindividualspectralbandsofthelightsourceduringsimultaneousexposuretowavelengthslongerthanthespectralbandofinterest.Boththespectrographicandfiltertechniquesprovideactivationspectra,buttheydifferinseveralrespects:Thespectrographictechniquegenerallyprovidesbetterresolutionsinceitdeterminestheeffectsofnarrowerspectralportionsofthelightsourcethanthefiltertechnique.Thefiltertechniqueismorerepresentativeofthepolychromaticradiationtowhichsamplesarenormallyexposedwithdifferent,andsometimesantagonistic,photochemicalprocessesoftenoccurringsimultaneously.However,sincethefiltersonlytransmitwavelengthslongerthanthecut-onwavelengthofeachfilter,antagonisticprocessesbywavelengthsshorterthanthecut-onareeliminated.Inthefiltertechnique,separatespecimensareusedtodeterminetheeffectofthespectralbandsandthespecimensaresufficientlylargeformeasurementofbothmechanicalandopticalchanges.Inthespectrographictechnique,exceptinthecaseofspectrographsaslargeastheOkazakitype(1),asinglesmallspecimenisusedtodeterminetherelativeeffectsofallthespectralbands.Thus,propertychangesarelimitedtothosethatcanbemeasuredonverysmallsectionsofthespecimen.Theinformationprovidedbyactivationspectraonthespectralregionofthelightsourceresponsibleforthedegradationintheoryhasapplicationtostabilizationaswellastostabilitytestingofpolymericmaterials(2).Activationspectrabasedonexposureoftheunstabilizedmaterialtosolarradiationidentifythelightscreeningrequirementsandthusthetypeofultravioletabsorbertouseforoptimumscreeningprotection.ThecloserthematchoftheabsorptionspectrumofaUVabsorbertotheactivationspectrumofthematerial,themoreeffectivethescreening.However,agoodmatchoftheUVabsorptionspectrumoftheUVabsorbertotheactivationspectrumdoesnotnecessarilyassureadequateprotectionsinceitisnottheonlycriteriaforselectinganeffectiveUVabsorber.Factorssuchasdispersion,compatibility,migrationandotherscanhaveasignixFB01;cantinxFB02;uenceontheeffectivenessofaUVabsorber(seeNote3).Theactivationspectrummustbedeterminedusingalightsourcethatsimulatesthespectralpowerdistributionoftheonetowhichthematerialwillbeexposedunderuseconditions.Note38212;InastudybyASTMG03.01,theactivationspectrumofacopolyesterbasedonexposuretoborosilicateglass-filteredxenonarcradiationpredictedthatUVabsorberAwouldbesuperiortoUVabsorberBinoutdoorusebecauseofstrongerabsorptionoftheharmfulwavelengthsofsolarsimulatedradiation.However,bothadditivesprotectedthecopolyestertothesameextentwhenexposedeithertoxenonarcradiationoroutdoors.Comparisonoftheactivationspectrumofthestabilizedwiththatoftheunstabilizedmaterialprovidesinformationonthecompletenessofscreeningandidentifiesanyspectralregionsthatarenotadequatelyscreened.Comparisonoftheactivationspectrumof.........
【中国标准分类号】:G04
【国际标准分类号】:71_040_50
【页数】:12P.;A4
【正文语种】:英语
【英文标准名称】:StandardSpecificationforSteelCastings,Iron-ChromiumandIron-Chromium-Nickel,HeatResistant,forGeneralApplication
【原文标准名称】:一般用耐热铬铁与镍铬铁合金钢铸件的标准规范
【标准号】:ASTMA297/A297M-1997
【标准状态】:作废
【国别】:美国
【发布日期】:1997
【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】:铁;钢;铸件;耐热;铬;铁合金;规范(验收);镍;质量要求
【英文主题词】:Castings;Chromium;Ferro-alloys;Heat-resistant;Iron;Nickel;Qualityrequirements;Specification(approval);Steels
【摘要】:
【中国标准分类号】:J31
【国际标准分类号】:77_140_80
【页数】:3P;A4
【正文语种】:英语
【原文标准名称】:用锐截止-打开滤波器或光谱方法测定材料激活光谱(对辐照源的波长敏感性)的标准实施规程
【标准号】:ASTMG178-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:G03.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:activationspectrum;cumulativespectralsensitivitycurve;degradation;lightexposure;sharpcut-onfiltertechnique;spectrographictechnique;ultravioletradiation;Actinicradiation;Activationenergy;Lightexposure;Sharpcut-onfiltertechni
【摘要】:Theactivationspectrumidentifiesthespectralregion(s)ofthespecificexposuresourceusedthatmaybeprimarilyresponsibleforchangesinappearanceand/orphysicalpropertiesofthematerial.Thespectrographictechniqueusesaprismorgratingspectrographtodeterminetheeffectonthematerialofisolatednarrowspectralbandsofthelightsource,eachintheabsenceofotherwavelengths.Thesharpcut-onfiltertechniqueusesaspeciallydesignedsetofsharpcut-onUV/visibletransmittingglassfilterstodeterminetherelativeactiniceffectsofindividualspectralbandsofthelightsourceduringsimultaneousexposuretowavelengthslongerthanthespectralbandofinterest.Boththespectrographicandfiltertechniquesprovideactivationspectra,buttheydifferinseveralrespects:Thespectrographictechniquegenerallyprovidesbetterresolutionsinceitdeterminestheeffectsofnarrowerspectralportionsofthelightsourcethanthefiltertechnique.Thefiltertechniqueismorerepresentativeofthepolychromaticradiationtowhichsamplesarenormallyexposedwithdifferent,andsometimesantagonistic,photochemicalprocessesoftenoccurringsimultaneously.However,sincethefiltersonlytransmitwavelengthslongerthanthecut-onwavelengthofeachfilter,antagonisticprocessesbywavelengthsshorterthanthecut-onareeliminated.Inthefiltertechnique,separatespecimensareusedtodeterminetheeffectofthespectralbandsandthespecimensaresufficientlylargeformeasurementofbothmechanicalandopticalchanges.Inthespectrographictechnique,exceptinthecaseofspectrographsaslargeastheOkazakitype(1),asinglesmallspecimenisusedtodeterminetherelativeeffectsofallthespectralbands.Thus,propertychangesarelimitedtothosethatcanbemeasuredonverysmallsectionsofthespecimen.Theinformationprovidedbyactivationspectraonthespectralregionofthelightsourceresponsibleforthedegradationintheoryhasapplicationtostabilizationaswellastostabilitytestingofpolymericmaterials(2).Activationspectrabasedonexposureoftheunstabilizedmaterialtosolarradiationidentifythelightscreeningrequirementsandthusthetypeofultravioletabsorbertouseforoptimumscreeningprotection.ThecloserthematchoftheabsorptionspectrumofaUVabsorbertotheactivationspectrumofthematerial,themoreeffectivethescreening.However,agoodmatchoftheUVabsorptionspectrumoftheUVabsorbertotheactivationspectrumdoesnotnecessarilyassureadequateprotectionsinceitisnottheonlycriteriaforselectinganeffectiveUVabsorber.Factorssuchasdispersion,compatibility,migrationandotherscanhaveasignixFB01;cantinxFB02;uenceontheeffectivenessofaUVabsorber(seeNote3).Theactivationspectrummustbedeterminedusingalightsourcethatsimulatesthespectralpowerdistributionoftheonetowhichthematerialwillbeexposedunderuseconditions.Note38212;InastudybyASTMG03.01,theactivationspectrumofacopolyesterbasedonexposuretoborosilicateglass-filteredxenonarcradiationpredictedthatUVabsorberAwouldbesuperiortoUVabsorberBinoutdoorusebecauseofstrongerabsorptionoftheharmfulwavelengthsofsolarsimulatedradiation.However,bothadditivesprotectedthecopolyestertothesameextentwhenexposedeithertoxenonarcradiationoroutdoors.Comparisonoftheactivationspectrumofthestabilizedwiththatoftheunstabilizedmaterialprovidesinformationonthecompletenessofscreeningandidentifiesanyspectralregionsthatarenotadequatelyscreened.Comparisonoftheactivationspectrumof.........
【中国标准分类号】:G04
【国际标准分类号】:71_040_50
【页数】:12P.;A4
【正文语种】:英语
【英文标准名称】:StandardSpecificationforSteelCastings,Iron-ChromiumandIron-Chromium-Nickel,HeatResistant,forGeneralApplication
【原文标准名称】:一般用耐热铬铁与镍铬铁合金钢铸件的标准规范
【标准号】:ASTMA297/A297M-1997
【标准状态】:作废
【国别】:美国
【发布日期】:1997
【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】:铁;钢;铸件;耐热;铬;铁合金;规范(验收);镍;质量要求
【英文主题词】:Castings;Chromium;Ferro-alloys;Heat-resistant;Iron;Nickel;Qualityrequirements;Specification(approval);Steels
【摘要】:
【中国标准分类号】:J31
【国际标准分类号】:77_140_80
【页数】:3P;A4
【正文语种】:英语
