GB/T 18912-2024 PDF English
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| GB/T 18912-2024 | English | 275 |
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Salt mist corrosion testing of photovoltaic (PV) modules
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GB/T 18912-2024: Salt mist corrosion testing of photovoltaic (PV) modules---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT18912-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.160
CCS K 83
GB/T 18912-2024
Replacing GB/T 18912-2002
Salt mist corrosion testing of photovoltaic (PV) modules
[IEC 61701.2020, Photovoltaic (PV) modules - Salt mist corrosion testing, MOD]
Issued on: NOVEMBER 28, 2024
Implemented on: MARCH 01, 2025
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 6
4 Samples... 6
5 General test rules... 6
6 Test sequence... 7
7 Determination requirements... 9
8 Test report... 9
Annex A (normative) Guidance for the selection of appropriate test method according
to IEC 60068-2-52... 12
Foreword
This document was drafted in accordance with the provisions of GB/T 1.1-2020
“Directives for standardization - Part 1.Rules for the structure and drafting of
standardizing documents”.
This document replaces GB/T 18912-2002 “Salt mist corrosion testing of photovoltaic
(PV) modules”. Compared with GB/T 18912-2002, in addition to structural adjustments
and editorial changes, the main technical changes are as follows.
a) ADD the requirements for test samples (see Clause 4 of this document);
b) ADD general test rules (see Clause 5 of this document);
c) MODIFY test methods and requirements (see Clause 6 of this document, Clause
3, Clause 4, Clause 5, Clause 6 of the 2002 edition);
d) ADD a diagram of salt mist test sequence for photovoltaic modules (see Figure 1
of this document);
e) ADD determination requirements (see Clause 7 of this document);
f) ADD test reports (see Clause 8 of this document).
This document has modified and adopted IEC 61701.2020 “Photovoltaic (PV) modules
- Salt mist corrosion testing”.
Compared with IEC 61701.2020, this document has made the following structural
adjustments.
- DELETE 6.4 in IEC 61701.2020;
- 6.4 ~ 6.7 correspond to 6.5 ~ 6.8 in IEC 61701.2020 respectively;
- Clause 7 corresponds to 7.1 and 7.2 in IEC 61701.2020;
- DELETE 7.3 in IEC 61701.2020.
The technical differences between this document and IEC 61701.2020 and their reasons
are as follows.
- DELET the content and requirements of concentrated photovoltaic modules, to
adapt to the technical conditions of China;
- MODIFY NOTE 2 in Figure 1 to a figure footnote, to meet the requirements for
the compilation of national standards of China;
Salt mist corrosion testing of photovoltaic (PV) modules
1 Scope
This document establishes test sequences for evaluating the resistance of photovoltaic
modules to salt mist corrosion.
This document applies to photovoltaic modules, including crystalline silicon
photovoltaic modules and thin-film photovoltaic modules, and does not apply to
concentrated photovoltaic modules. The purpose is to evaluate the possible effect of salt
mist environments on photovoltaic modules.
2 Normative 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 edition of the referenced document (including any amendments) applies.
ISO 9223 Corrosion of metals and alloys - Corrosivity of atmospheres -
Classification, determination and estimation
NOTE. GB/T 19292.1-2018 Corrosion of metals and alloys - Corrosivity of atmospheres - Part
1.Classification, determination and estimation (ISO 9223.2012, IDT)
ISO 9227 Corrosion tests in artificial atmospheres - Salt spray tests
NOTE. GB/T 10125-2021 Corrosion tests in artificial atmospheres - Salt spray tests (ISO
9227.2017, MOD)
IEC 60068-2-52 Environmental testing - Part 2-52.Tests - Test Kb. Salt mist, cyclic
(sodium chloride solution)
NOTE. GB/T 2423.18-2021 Environmental testing - Part 2.Test methods - Test Kb. Salt mist,
cyclic (sodium chloride solution) (IEC 60068-2-52.2017, IDT)
IEC 61215-1 Terrestrial photovoltaic (PV) modules - Design qualification and type
approval - Part 1.Test requirements
IEC 61215-2 Terrestrial photovoltaic (PV) modules - Design qualification and
type approval - Part 2.Test procedures
IEC 61730-2 Photovoltaic (PV) module safety qualification - Part 2.
Requirements for testing
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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