GB/T 46784-2025Wind energy generation systems - Technical requirements for the environmental monitoring systems of offshore wind turbines (English PDF)
风能发电系统 海上风力发电机组环境监测系统技术要求
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 2, 2025
Implementation date
December 2, 2025
Scope
GB/T 46784-2025 is the English-translated version of 风能发电系统 海上风力发电机组环境监测系统技术要求.
GB/T 46784-2025 is the Chinese standard "Wind energy generation systems - Technical requirements for the environmental monitoring systems of offshore wind turbines".
Its scope clause reads: This document specifies the general requirements for environmental monitoring of offshore wind turbine generators, including temperature, humidity, wind speed and direction, air pressure, lightning, and harmful substances.
Monitoring content and technical requirements for gases, salt spray, corrosion, ocean waves, ocean currents, seawater temperature and salinity. This document applies to the monitoring of the operating environment of offshore wind turbine generators (including supporting structures). Its clauses include terms and definitions.
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Document preview — GB/T 46784-2025
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
Contents
- Preface
- 1.Scope
- 2 Normative References
- 3.Terms and Definitions
- 4.General Requirements
- 5.Temperature monitoring
- 6.Humidity monitoring
- 7.Wind speed and direction monitoring 4.
- 8.Barometric pressure monitoring
- 9 Lightning monitoring
- 10 Hazardous gas monitoring
- 11 Salt spray monitoring
- 12 Corrosion Monitoring
- 13 Wave monitoring
- 14 Ocean current monitoring
- 15.Seawater temperature and salinity monitoring
1 Scope
This document specifies the general requirements for environmental monitoring of offshore wind turbine generators, including temperature, humidity, wind speed and direction, air pressure, lightning, and harmful substances.
Monitoring content and technical requirements for gases, salt spray, corrosion, ocean waves, ocean currents, seawater temperature and salinity.
This document applies to the monitoring of the operating environment of offshore wind turbine generators (including supporting structures).
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 18451.1 Design Requirements for Wind Turbine Generator Sets
GB/T 18451.2 Power Characteristic Test of Wind Turbine Generator Sets
GB/T 33630 Corrosion Protection Standard for Offshore Wind Turbine Generators
NB/T 31029 Specification for Measurement of Wind Energy Resources and Marine Hydrological Observation in Offshore Wind Farms
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 harmful gases
When the concentration exceeds a certain threshold, it poses a danger to people or equipment, damages public health, pollutes the natural environment, or may cause an explosion.
gas.
3.2 Salt fog
An aggregate of small water droplets containing a large amount of sea salt and suspended in the atmosphere near the Earth's surface.
3.3 Oceanwave
Waves in the ocean caused by wind.
Note. This includes wind waves and the swells that they evolve into.
3.4 oceancurrentoceancurrent
The macroscopic flow of seawater is characterized by flow velocity and flow direction.
3.5 salinity
A scale for the salinity of seawater.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 11 pages — is available in the English PDF.
Referenced standards
Normative references
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Related Standards
GB/T 18451.1-2012 — Wind turbine generator systems -- Design requirements
GB/T 18451.1-2022 — Wind energy generation systems—Design requirements
GB/T 18451.2-2025 — Wind energy generation systems - Power performance measurements of electricity producing wind turbines
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GB/T 46784-2025
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