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GB/T 45854-2025Wind energy generation systems - Hydraulic system of wind turbines (English PDF)

风能发电系统风力发电机组液压系统

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 1, 2025

Implementation date

November 1, 2025

Scope

GB/T 45854-2025 is the English-translated version of 风能发电系统风力发电机组液压系统.

GB/T 45854-2025 is the Chinese standard "Wind energy generation systems - Hydraulic system of wind turbines". Its scope clause reads: This document specifies the technical requirements, performance requirements, test methods, inspection rules, as well as labeling, packaging, Transportation and storage requirements, etc. Note.

The hydraulic system of wind turbine generator set is mainly used to provide power for various hydraulic devices including hydraulic brake, hydraulic wind wheel lock pin, hydraulic pitch control, etc. Source of power.

This document applies to the design, selection, manufacturing, assembly and maintenance of hydraulic systems for wind turbines.

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Document preview — GB/T 45854-2025

National Standard of the People's Republic of China

ICS: 27.180
Classification: F 11

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

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Hydraulic system technical requirements
4.1 Basic Requirements
4.2 Design Requirements
4.3 Assembly requirements
5 Technical requirements for hydraulic components and assemblies
5.1 Motor pump unit
5.2 Fuel tank
5.3 Valve block (oil block)
5.4 Solenoid valve
5.5 Relief valve
5.6 Throttle valve
5.7 Check valve
5.8 Pressure reducing valve
5.9 Servo Directional Valve
5.10 Proportional directional valve
5.11 Pressure Sensor
5.12 Pressure switch
5.13 Seals
5.14 Accumulator
5.15 Rotary joint
5.16 Hydraulic oil
5.17 Junction Box
5.18 Hand pump
5.19 Hose assembly
5.20 Hard tube assembly
6 Performance Requirements
6.1 Appearance Requirements
6.2 Pressure Holding Performance
6.3 Voltage Withstand Performance
6.4 Anti-corrosion performance
6.5 Low temperature performance
6.6 Low pressure performance
6.7 Durability
6.8 Vibration resistance
6.9 Impact and Crash Performance
6.10 Anti-interference performance
7 Test Method
7.1 Appearance Inspection
7.2 Pressure holding test
7.3 Fuel tank air tightness test
7.4 Motor Test
7.5 Anti-corrosion performance test
7.6 Low temperature performance test
7.7 Low pressure test
7.8 Durability Test
7.9 Vibration resistance test
7.10 Shock and collision testing
7.11 Anti-interference performance test
7.12 Cleanliness test
7.13 Functional Testing
7.14 Other test requirements
8 Inspection Rules
8.1 Inspection categories
8.2 Factory Inspection
8.3 Type inspection
8.4 Decision Rules
9 Labeling, packaging, transportation and storage
9.1 Identification
9.2 Packaging
9.3 Transportation and storage

1 Scope

This document specifies the technical requirements, performance requirements, test methods, inspection rules, as well as labeling, packaging,

Transportation and storage requirements, etc.

Note. The hydraulic system of wind turbine generator set is mainly used to provide power for various hydraulic devices including hydraulic brake, hydraulic wind wheel lock pin, hydraulic pitch control, etc.

Source of power.

This document applies to the design, selection, manufacturing, assembly and maintenance of hydraulic systems for wind turbines.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to

This document.

GB/T 191 Pictorial symbols for packaging, storage and transportation

GB/T 699 High-quality carbon structural steel

GB/T 755 Ratings and performance of rotating electrical machines

GB/T 985.1 Recommended grooves for gas welding, arc welding, gas shielded welding and high energy beam welding

GB/T 1032 Test methods for three-phase asynchronous motors

GB/T 1591 Low alloy high strength structural steel

GB/T 2423.27 Environmental testing Part 2.Test methods Test methods and guidance. Temperature/low pressure or temperature/humidity/low

Comprehensive air pressure test

GB/T 2900.53 Electrical terminology Wind turbine generator system

GB/T 3191 Aluminium and aluminium alloy extruded bars

GB/T 3766 General rules and safety requirements for hydraulic transmission systems and their components

GB/T 4208 Degrees of protection provided by enclosures (IP code)

GB/T 8013.1 Anodic oxide films and organic polymer films on aluminium and aluminium alloys Part 1.Anodic oxide films

GB/T 8163 Seamless steel pipes for conveying fluids

GB/T 9969 General principles for instructions for use of industrial products

GB/T 11287 Electrical relays Part 21.Vibration, shock, impact and earthquake tests on measuring relays and protective devices

Part 1.Vibration Test (Sine)

GB/T 12706.2 Rated voltage 1kV (Um=1.2kV) to 35kV (Um=40.5kV) extruded insulated power cables and accessories

Part 2.Cables with rated voltages from 6 kV (Um = 7.2 kV) to 30 kV (Um = 36 kV)

GB/T 13306 Signage

GB/T 13384 General technical requirements for packaging of electromechanical products

GB/T 14039 Hydraulic transmission oil solid particle contamination level code

GB/T 14537 Shock and collision tests for measuring relays and protective devices

GB/T 15114 Aluminum alloy die castings

GB/T 17446 Fluid power systems and components vocabulary

GB/T 25387.1 | GB/T 25388.1 | GB/T 25389.1 | GB/T 45855 | GB/T 45851 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 19 pages — is available in the English PDF.

Referenced standards

Normative references

Editions of GB/T 45854

Edition	Title	Revision	Status
GB/T 45854-2025	Wind energy generation systems - Hydraulic system of wind turbines	current edition	Current

This page sells the current edition, GB/T 45854-2025. Earlier editions are listed for reference only.

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