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GB/T 20047.1-2006Photovoltaic (PV) module safety qualification -- Part 1: Requirements for construction (English PDF)

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China

Level / Type

National · Recommended

Issue date

January 13, 2006

Implementation date

February 1, 2006

Scope

GB/T 20047.1-2006 (Photovoltaic (PV) module safety qualification -- Part 1: Requirements for construction) is available as an English-translated PDF.

GB/T 20047.1-2006 is the Chinese standard "Photovoltaic (PV) module safety qualification -- Part 1: Requirements for construction".

Its scope clause reads: This Part of GB/T 20047 describes the fundamental construction requirements for photovoltaic (PV) modules in order to provide safe electrical and mechanical operation during their expected lifetime.

Specific topics are provided to assess the prevention of electrical shock, fire hazards, and personal injury due to mechanical and environmental stresses. Part 2 of GB/T 20047 outlines the requirements for testing.

This Part of GB/T. Its clauses include scope and object; pertains to the particular requirements for construction.; ageing procedures and evaluation of test results (gb/t 11026.1-2003, iec 60216-.

It was issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China on 2006-01-13 and took effect on 2006-02-01.

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Document preview — GB/T 20047.1-2006

National Standard of the People's Republic of China

ICS: 27.160
Classification: K 83

Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China

Foreword...4
1 Scope and object...5
2 Normative references...5
3 Application classes...7
3.1 General...7
3.2 Class A. General access, hazardous voltage, hazardous power applications...7
3.3 Class B. Restricted access, hazardous voltage, hazardous power applications...7
3.4 Class C. Limited voltage, limited power applications...8
4 Construction requirements...8
4.1 General requirements...8
4.2 Metal parts...9
5 Polymeric materials...9
5.1 General...9
5.2 Polymers serving as an enclosure for live parts...9
5.3 Polymers serving to support live parts...10
5.4 Polymers serving as an outer surface...10
5.5 Barriers...11
5.6 Structural glazing materials...11
6 Internal wiring and current-carrying parts...11
6.1 Internal wiring...11
6.2 Splices...12
6.3 Mechanical securement...12
7 Connections...12
7.1 Field connections -- general requirements...12
7.2 Field wiring terminals...12
7.3 Connectors...13
7.4 Output lead or cables...14
8 Bonding and grounding...14
9 Creepage and clearance distances...15
10 Field wiring compartments with cover...16
10.1 General...16
10.2 Wall thickness...16
10.3 Internal volume...17
10.4 Openings...17
10.5 Gaskets and seals...17
10.6 Strain relief...17
10.7 Sharp edges...18
10.8 Conduit applications - Metallic...18
10.9 Conduit applications - Non-metallic...18
11 Marking...19
12 Requirements for supplied documents...20
13 Modifications...21
Bibliography...22

Foreword

GB/T 20047 consists of the following two parts.

- Part 1.Photovoltaic (PV) module safety qualification. requirements for

construction;

- Part 2.Photovoltaic (PV) module safety qualification. requirements for testing.

This Part is Part 1 of GB/T 20047, which is identical to IEC 61730-1.2004

"Photovoltaic (PV) module safety qualification - Part 1.requirements for construction"

(English version).

For ease of use, the following editorial changes have been made to this Part.

a) USE decimal point "." instead of comma "," that has been used as decimal point;

b) DELETE the foreword of the international standard.

This Part was proposed by Ministry of Information Industry of the People's Republic

of China.

This Part shall be under the jurisdiction of National Technical Committee on Solar

Photovoltaic Energy System of Standardization Administration of China.

Drafting organizations of this Part. 18th Research Institute of China Electronics

Technology Group Corporation, Tianjin Blue Sky Power Supply Company.

Main drafters of this Part. Guo Zengliang, Zhai Zuoxu, Ji Liangjun, Li Hui, Sun

Yanzheng, and Tang Jun.

Photovoltaic (PV) module safety qualification -

Part 1.Requirements for construction

1 Scope and object

This Part of GB/T 20047 describes the fundamental construction requirements for

photovoltaic (PV) modules in order to provide safe electrical and mechanical operation

during their expected lifetime. Specific topics are provided to assess the prevention of

electrical shock, fire hazards, and personal injury due to mechanical and environmental

stresses. Part 2 of GB/T 20047 outlines the requirements for testing. This Part of GB/T

20047 pertains to the particular requirements for construction.

This Part attempts to define the basic requirements for various application classes of

PV modules, but it cannot be considered to encompass all national or regional building

codes. The specific requirements for marine and vehicle applications are not covered in

this Part. This Part is not applicable to modules with integrated AC inverters (AC

modules).

This Part is designed so that its test sequence can coordinate with those of IEC

61215.2004 or GB/T 18911-2002, so that a single set of samples may be used to perform

both the safety and performance evaluation of a photovoltaic module design.

The object of this Part is to provide basic guidance in certifying the fundamental

construction of photovoltaic modules presented for safety approval by testing under

GB/T 20047.2.These requirements are intended to minimise the misapplication and

misuse of modules or the breakdown of internal components which would result in fire,

electric shock and personal injury. The Part defines the basic safety construction

requirements and additional tests that are a function of the module end-use applications.

Component requirements are intended to provide evidence of performance of that

component appropriate to its application in the module construction and environment.

NOTE. The additional construction requirements outlined in relevant ISO standards, or the

national or local codes which govern the installation and use of these modules in their intended

locations, should be considered in addition to the requirements contained within this Part.

2 Normative references

The following documents contain the provisions which, through reference in this Part

of GB/T 20047, become the provisions of this Part. For dated references, their

subsequent amendments (excluding corrigendum) or revisions do not apply to this Part.

However, the parties who enter into agreement based on this Part are encouraged to

investigate whether the latest versions of these documents are applicable. For undated

reference documents, the latest versions apply to this Part.

GB/T 5169.2 Fire hazard testing for electric and electronic products - Part 2.

Guidance for assessing the fire hazard - General guidelines (GB/T 5169.2-2002, IEC

60695-1-1.1999, IDT)

GB/T 11026.1 Electrical insulating materials—Thermal endurance properties—Part

1 Ageing procedures and evaluation of test results (GB/T 11026.1-2003, IEC 60216-

1.2001, IDT)

GB/T 18911-2002 Thin-film terrestrial photovoltaic (PV) modules - Design

qualification and type approval (IEC 61646.1996, IDT)

GB/T 20047.2 1) Photovoltaic (PV) module safety qualification - Part 2.

Requirements for testing

IEC 60112 Method for the determination of the proof and the comparative tracking

indices of solid insulating materials

IEC 60130 (all parts) Connectors for frequencies below 3 MHz

IEC 60189-2 Low-frequency cables and wires with PVC insulation and PVC sheath

- Part 2.Cables in pairs, triples, quads and quintuples for inside installations

IEC 60216-1 Electrical insulating materials -Thermal endurance properties - Part 1.

Ageing procedures and evaluation of test results

IEC 60216-5 Electrical insulating materials - Thermal endurance properties - Part 5.

Determination of relative thermal endurance index (RTE) of an insulating material

IEC 60364-5-51 Electrical installations of buildings - Part 5-51.Selection and

erection of electrical equipment - Common rules

IEC 60417-DB.20022) Graphical symbols for use on equipment

IEC 60529 Degrees of protection provided by enclosures (IP Code)

IEC 60947-1 Low-voltage switchgear and controlgear - Part 1.General rules

IEC 61215.2004 Crystalline silicon terrestrial photovoltaic (PV) modules - Design

qualification and type approval

IEC 61721 Susceptibility of a photovoltaic (PV) module to accidental impact

damage (Resistance to impact test)

1) Under submission for approval.

2) "DB" refers to the IEC on-line database.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 22 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 20047

Cited by

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