RO
SR EN 60904-5:2011
Photovoltaic devices -- Part 5: Determination of the equivalent cell temperature (ECT) of photovoltaic (PV) devices by the open-circuit voltage method
IEC 60904-5:2011 describes the preferred method for determining the equivalent cell temperature (ECT) of PV devices (cells, modules and arrays of one type of module), for the purposes of comparing their thermal characteristics, determining NOCT (nominal operating cell temperature) and translating measured I-V characteristics to other temperatures. The main technical changes with regard to the previous edition are as follows: - added method on how to extract the input parameters; - rewritten method on how to calculate ECT; - reworked formulae to be in line with IEC 60891.
Status :
Valid
Approval date : 11/30/2011
Number of pages : 14
ICS : 27.160 Solar energy engineering
Technical Committee : 35 - Conversion systems of solar energy, wind energy, and wave and tidal energy into electrical energy
- Replaces SR EN 60904-5:2003
- Normative reference SR EN 60904-7:2009
- Normative reference SR EN 60904-1:2007
- Normative reference SR EN ISO/CEI 17025:2005
- Normative reference SR EN 61215:2006
- Normative reference SR EN ISO/CEI 17025:2005/AC:2007
- Normative reference SR EN 60904-2:2007
- Normative reference SR EN 60904-10:2001
- Normative reference SR EN 60891:2010
- Normative reference SR EN 61829:2004
- Amended by SR EN 60904-5:2011/A1:2023