IEC 60891:2021/COR1:2024

© IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
IEC 60891 IEC 60891
Edition 3.0  2021-10 Édition 3.0  2021-10

PHOTOVOLTAIC DEVICES – PROCEDURES DISPOSITIFS PHOTOVOLTAÏQUES –
FOR TEMPERATURE AND IRRADIANCE PROCÉDURES POUR LES CORRECTIONS EN
CORRECTIONS TO MEASURED I-V FONCTION DE LA TEMPÉRATURE ET DE
CHARACTERISTICS L'ÉCLAIREMENT À APPLIQUER AUX
CARACTÉRISTIQUES I-V MESURÉES
CO RRI G E NDUM 1
Corrections to the French version appear after the English text.
Les corrections à la version française sont données après le texte anglais.

Replace the existing second item in the dashed list in 5.1 by the following:
Relative temperature coefficients (α , β and δ ) expressed in percentage per unit
rel rel rel
temperature (%/K or %/°C) can be determined by dividing the calculated value of temperature
coefficients α, β, and δ by the values of short-circuit current, open-circuit voltage and maximum
power respectively determined from the least squares fit at 25 °C corresponding to an irradiance
of 1 000 W/m . The relative coefficients so determined are valid at the irradiance and spectrum
at which the measurements were made. For linear PV devices with respect to irradiance
(typically the case for c-Si), the relative temperature coefficient α is valid over the entire range
rel
of irr
...