IEC 60904-5:2011 ED2

Photovoltaic devices - Part 5: Determination of the equivalent cell temperature (ECT) of photovoltaic (PV) devices by the open-circuit voltage method

Publication date:   Nov 23, 2022

General information

60.60 Standard published   Feb 17, 2011

IEC

TC 82

International Standard

27.160   Solar energy engineering

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
IEC 60904-5:1993 ED1

NOW

PUBLISHED
IEC 60904-5:2011 ED2
60.60 Standard published
Feb 17, 2011

CORRIGENDA / AMENDMENTS

PUBLISHED
IEC 60904-5:2011/AMD1:2022 ED2