IEC 60904-5:2011 pdf free download – Photovoltaic devices
1 scope and object
This part of lEC 60904 describes the preferred method for determining the equivalent celltemperature (ECT) of PV devices (cells，modules and arrays of one type of module), for thepurposes of comparing their thermal characteristics,determining NOCT(nominal operatingcell temperature) and translating measured l-V characteristics to other temperatures.
This standard applies to linear devices with logarithmic Voc dependence on irradiance and instable conditions. lt may be used for all technologies but one has to verify that there is nopreconditioning effect influencing the measurement.
2Normative references
The following referenced documents are indispensable for the application of this document.For dated references, only the edition cited applies. For undated references, the latest editionof the referenced document (including any amendments) applies.
IEC 60891，Photovoltaic devices – Procedures for temperature and irradiance correctionsto measured -v characteristics
IEC 60904-1，Photovoltaic devices – Part 1: Measurement of photovoltaic current-voltagecharacteristics
IEC 60904-2,Photovoltaic devices – Part 2:Requirements for reference solar devices
IEC 60904-7,Photovoltaic devices – Part 7: Computation of the spectral mismatch correctionfor measurements of photovoltaic devices
IEC 60904-10, Photovoltaic devices – Part 10: Methods of linearity measurement
IEC 61215，Crystalline silicon terrestrial photovoltaic(PV) modules – Design qualificationand type approval
IEC 61829，Crystalline silicon photovoltaic(PV) array – On-site measurement of l-vcharacteristics
ISO/IEC 17025,General requirements for competence of testing and calibration laboratories