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GB/T 19568-2025Wind energy generation systems - Assembling and installation specification of wind turbines (English PDF)

风能发电系统　风力发电机组装配和安装规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 31, 2025

Implementation date

May 1, 2026

Scope

GB/T 19568-2025 is the English-translated version of 风能发电系统　风力发电机组装配和安装规范.

GB/T 19568-2025 is the Chinese national standard covering erecting a turbine - the receipt and storage of the components, the pre-assembly on the ground, the lift sequence and the wind limits for each stage, the alignment and the connections, and the commissioning checks before the machine is handed over. It replaces GB/T 19568-2017, with the fastener installation standard GB/T 33628-2025. In force from 1 May 2026. Issued on 31 October 2025, it has been in force since 1 May 2026, replacing GB/T 19568-2017.

Document preview — GB/T 19568-2025

National Standard of the People's Republic of China

ICS: 27.180
Classification: F 11
Replacing: GB/T 19568-2017

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1.Scope1
2 Normative References1
3.Terms and Definitions1
4.General Requirements1
4.1 General Requirements1
4.2 Connection Requirements2
5.Assembly requirements for key components3
5.1 Spindle bearing assembly3
5.2 Transmission Chain Assembly4
5.3 Assembly of yaw and pitch bearings and yaw gear ring5
5.4 Brake Assembly5
5.6 Elastic support assembly6
5.7 Transmission Chain Assembly6
5.8 Generator Assembly (Flexible Coupling)7
5.9 High-speed shaft coupling7
5.10 Hydraulic and Lubrication System Assembly7
5.11 Assembly of nacelle cover and wheel hub cover7
6 Wind farm installation requirements8
6.1 Safety Requirements8
6.2 Installation personnel requirements8
6.3 Installation site requirements8
6.4 Installation Requirements for Key Components in Wind Farms9
7.Inspection Requirements15
17 Appendix C (Normative) Method for Inspecting Bolt Tightness21

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting. This document replaces GB/T 19568-2017 "Specifications for Assembly and Installation of Wind Turbine Generator Sets". Compared with GB/T 19568-2017, Apart from structural adjustments and editorial changes, the main technical changes are as follows:

a) The "General Requirements" have been changed (see 4.1.4, 4.1.6, 4.1.7, 4.1.8, and

3.1 in the.2017 version);

b) The requirements for screw, bolt, and stud connections have been changed (see 4.2.1.1~4.2.1.3, 4.2.1.5, and

3.2.1 in the.2017 version);

c) Added installation requirements for ring groove rivet connections (see 4.2.6);

d) The content of "Main Bearing Housing Composition and Gearbox Assembly" has been changed to "Transmission Chain Assembly" requirements (see 5.2,.2017 version). 3.3.2);

e) The content of "Yaw and pitch bearing assembly" has been changed to "Yaw, pitch bearing, and yaw gear assembly" (see 5.3). (Version 3.3.3,.2017)

f) Assembly requirements for passive mechanical brakes and hydraulic gearbox elastic supports have been added (see

5.4.2 and 5.6.2);

g) Increased requirements for generator assembly (see 5.8);

h) Security requirements have been changed (see 6.1,

4.1 in the.2017 version);

1 Scope

This document specifies the general requirements for the assembly and installation of wind turbine generator sets, the assembly requirements for key components, the installation requirements for wind farms, and the inspection requirements. Seek and verify the method. This document applies to the assembly and installation of wind turbine generator sets.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document.

GB/T 9327-2008 Crimp and mechanical connections for conductors of power cables with rated voltage of 35kV (Um=40.5kV) and below Fittings Testing Methods and Requirements

GB/T 19072 Wind Turbine Generator Tower

GB/T 20319 Acceptance Specification for Wind Turbine Generator Sets

GB/T 33628 Technical requirements for the installation of high-strength threaded connections in wind turbine generator sets

GB/T 37898 Safety Technical Specification for Lifting Wind Turbine Generator Sets DL/T 796 Safety Regulations for Wind Power Plants

3 Terms and Definitions

This document does not contain any terms or definitions that need to be defined.

4.1 General Requirements

4.1.1 All personnel involved in assembly should undergo three levels of safety education and on-the-job skills training. Those in special trades (crane operators, special equipment operators) should hold relevant certificates. Only those with the corresponding qualification certificates are allowed to work, and operators of key processes and special processes must be trained and qualified before they can work.

4.1.2 Before assembly, all parts should be inspected to ensure that their models and specifications meet the requirements of the configuration list.

4.1.3 Before assembly, the parts entering the assembly area should be inspected. Assembly can only proceed if they meet the following requirements.

a) It bears a certificate of conformity after passing inspection;

b) Review the main mating dimensions and part numbers of key components and record them in the warranty card;

c) The mating dimensions adjusted by the fitter shall be re-inspected by the quality inspection department of the complete machine manufacturer and recorded in the warranty card.

4.1.4 Each assembly process should have an assembly process control card, which should be recorded and stored in the wind turbine generator set file.

4.1.5 Parts should be cleaned or washed before assembly and should be free of burrs, flaked edges, scale, rust, chips, oil, colorants, and dust. Before assembly, sharp corners or high points on mating surfaces should be trimmed. Unless otherwise specified, sharp corners and edges of parts should be rounded off before assembly. (Assembly process...)

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 25 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 9327-2008

Cited by

GB/T 46785-2025Wind energy generation systems - Desert and gobi wind turbines

Editions of GB/T 19568

Edition	Title	Revision	Status
GB/T 19568-2025	Wind energy generation systems - Assembling and installation specification of wind turbines	current edition	Current
GB/T 19568-2017	Wind turbines -- Assembling and installation regulation	previous edition	In force
GB/T 19568-2004	Assembling and installation regulation for wind turbine generator systems	previous edition	Obsolete

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