JJF闽10822017光伏组件用紫外老化箱校准规范

福建省地方计量技术规范JJF（闽）1082－2017光伏组件用紫外老化箱校准规范CalibrationSpecificationforUltravioletTestChamberforPhotovoltaicModules2017－04－07发布2017－07－07实施福建省质量技术监督局发布JJF（闽）1082－2017１光伏组件用紫外老化箱校准规范CalibrationSpecificationforUltravioletTestChamberforPhotovoltaicModules本规范经福建省质量技术监督局于2017年04月07日批准，并自2017年07月07日起施行。归口单位：福建省质量技术监督局起草单位：福建省计量科学研究院本规范委托起草单位负责解释JJF（闽）1082－2017JJF（闽）1082－2017２本规范主要起草人：黎健生（福建省计量科学研究院）杨爱军（福建省计量科学研究院）王孔祥（福建省计量科学研究院）李杰（福建省计量科学研究院）罗海燕（福建省计量科学研究院）JJF（闽）1082－2017I目录1范围·············································································（1）2引用文献·········································································（1）3概述··············································································（1）4计量特性·········································································（1）4.1通用技术要求·····································································（1）4.2紫外辐照度示值误差·······························································（2）4.3紫外光谱分布·······································································（2）4.4紫外辐照度不均匀度································································（2）4.5紫外辐照度不稳定度································································（2）4.6紫外老化箱的温度偏差······························································（2）5校准条件··········································································（3）5.1校准环境条件····································································（3）5.2标准器及配套设备··································································（3）6校准项目和校准方法································································（3）6.1准备··············································································（3）6.2外观检查··········································································（3）6.3紫外辐照度示值误差·································································（3）6.4紫外光谱分布······································································（4）6.5紫外辐照度不均匀度·································································（5）6.6紫外辐照度不稳定度·································································（5）6.7温度偏差···········································································（5）7校准结果表达·······································································（5）8复校时间间隔·······································································（6）附录A紫外辐照度测量不确定度评定示例·················································（7）附录B光谱分布测量不确定度示例······················································（11）JJF（闽）1082－2017II附录C温度测量不确定度评定示例······················································（14）附录D校验仪校准原始记录格式·······················································（17）JJF（闽）1082－20171光伏组件用紫外老化箱校准规范1范围本规范适用于光伏组件用紫外老化箱的校准。2引用文件JJF1001通用计量术语及定义JJF1059测量不确定度评定与表示JJF1071国家计量校准规范编写规则JJF1101环境试验设备温度，湿度校准规范JJF1525氙弧灯人工气候老化实验装置辐射照度参数校准规范GB4793.1测量、控制和实验室用电气设备的安全要求IEC60904-9光伏器件-第9部分：太阳模拟器性能要求IEC61215-2地面用光伏组件-设计鉴定和定型–第2部分：测试程序IEC61345光伏组件的UV测试使用本规范时，应注意使用上述引用文献的现行有效版本。3概述光伏组件用紫外老化箱是模拟太阳光光谱里紫外部分的装置，配合适当的温度（通常为（55~65）℃）用于考核光伏组件抗紫外辐照能力的试验。其计量特性包括紫外辐照的波长范围、规定波长范围内紫外辐照度、紫外辐照度不均匀度、紫外辐照度不稳定度和试验箱内温度。4计量特性4.1通用技术要求4.1.1紫外老化箱应具有设备名称、型号、仪器编号，生产厂家等信息。4.1.2紫外老化箱设备仪表按键和现实功能正常,各个光源应能正常点亮并稳定工作，光源玻壳表面和箱体内壁应洁净无污染。JJF（闽）1082－201724.2紫外辐照度示值误差即:WWOr(1)式中：W——紫外老化箱的紫外辐照度指示值；W0——被测量的实际值。4.3紫外光谱分布紫外光谱分布测量的下限不高于250nm，上限不低于400nm。分别计算（320~400）nm波段，（280~320）nm波段和280nm以下波段的积分辐照度占整个测量波段范围积分辐照度的比例。4.4紫外辐照度不均匀度指定测量平面上受到的紫外辐照度的空间不一致性，按如下公式计算：maxminmaxminW-(2)式中：Wmax——紫外老化箱内指定测量平面上测得的紫外辐照度最大值；Wmin——紫外老化箱内指定测量平面上测得的紫外辐照度最小值。4.5紫外辐照度不稳定度在指定测量时间内指定测量平面中心点上受到的紫外辐照度的时间波动性，按如下公式计算：maxminmaxminw-(3)式中：wmax——在指定测量时间内指定测量平面中心点上测得的紫外辐照度最大值；wmin——在指定测量时间内指定测量平面中心点上测得的紫外辐照度最小值。4.6紫外老化箱的温度偏差即：Ottt(4)式中：t——指定测量时间范围内紫外老化箱的温度指示值的平均值；t0——指定测量时间范围内紫外老化箱内中心点实测温度的平均值。JJF（闽）1082－201735校准条件5.1校准环境条件校准均应在下述条件下进行：5.1.1环境温度(25±5)℃,环境相对湿度≤70%RH。5.1.2紫外老化箱内设定温度：60℃。5.1.3紫外老化箱内指定测试面的实际紫外辐照度：不超过250W/m2。5.1.4准备工作：紫外老化箱开机后正常工作至少30分钟，待设备稳定后进行后续测量。5.1.5其他条件：电网电压波动符合紫外老化箱和检测设备的使用要求，无影响其正常工作的电磁场、机械振动；校准地点应无影响辐照度和光谱测量的杂散光。5.2标准器及配套设备5.2.1紫外辐照度计紫外辐照度计的工作温度上限应高于65℃。校准紫外辐照度计时采用的上一级标准光源的类型应与紫外老化箱内紫外光源相一致。其余技术要求参考标准ISO9370。5.2.2光谱仪光谱仪的性能要求：最小光谱测量范围：（250~800）nm；波长误差≤1nm；波长分辨率≤1nm；采样间隔≤1nm。5.2.3温度测量设备温度测量设备由温度传感器和显示仪表组成，时间常数应小于15秒，温度测量准确度应≤0.2℃。6校准项目和校准方法6.1准备紫外老化箱应满足5.1条件后再开始校准。6.2外观检查用目视和手动检查。内容包括：制造厂名或商标、出厂编号、仪器名称、型号；灯管玻壳无发黑，通电后各个灯管均正常点亮；辐照度和温度测量和显示装置能正常工作。6.3紫外辐照度示值误差如图（1）所示，将UVA和UVB紫外辐照度计分别垂直放置于指定测试面的中心点，直接测得UVA和UVB的辐照度,按公式(1)计算紫外辐照度的示值误差。JJF（闽）1082－20174应考虑紫外老化箱工作温度和校准紫外辐照度计时的温度之间的差异对紫外辐照度计性能产生的影响。如紫外辐照度计的额定工作范围能覆盖65℃，则应在测量时进行与紫外老化箱内工作温度相适应的温度修正。如紫外辐照度计的额定工作温度范围不能覆盖65℃，则不适合用于直接测量紫外老化箱的紫外辐照度，应考虑为其配置温控装置，使其在测量时工作在被校准时的温度（可通过查阅有效的校准报告得到）。注意温控装置受光面采用的材料应是中性的。如配备温控装置，紫外辐照度计每年的校准应与温控装置一起进行。UVA和UVB辐照度应分别重复测量三次，取平均值作为最后的报告值。也可使用6.2中的光谱仪进行紫外辐射的绝对光谱辐射照度测量，然后根据需要波段的起止波长对绝对光谱辐射照度测量数据进行积分，得到该波段的紫外辐照度。()ABSRd(4)式中：A和B分别是关注波段范围内的波长上限和下限，单位为nm；()SR是光谱仪测得的紫外辐射的绝对光谱分布，单位为W/m2/nm。图1.紫外辐照度测量示意图1.紫外老化箱体；2.紫外辐射方向；3.指定测试面；4.标准紫外辐照度计；5.温控装置（如有）。6.4紫外辐射波长分布将光谱仪的受光探头垂直放置于测试面的中心点，以不大于10nm的波长间隔测量至少（250~400）nm范围内的紫外辐射光谱分布。测量中，设备的采样间隔应不大于1nm。应根据被测光源的特性合理