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: Feb 17, 2011

General information

Current stage: 60.60 Effective date: Feb 17, 2011

Originator: IEC

Owner: TC 82

Type: International Standard

ICS: 27.16

Languages: English French Spanish

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Status: Published

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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

Revises
IEC 60904-5:1993 ED1

NOW

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

CORRIGENDA / AMENDMENTS

Amended by
IEC 60904-5/AMD1 ED2

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