DL 796-2001 in English
ABOLISHEDCode on safety of wind farm
- Issued on:2001-12-26
- Implemented on:2002-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$117.00
本标准规定了风力发电安全生产工作内容、权限、责任及检查考核办法。本标准适用于风力发电企业安全生产全部过程。
Introduction
Standard Background and Significance
As my country's first mandatory safety standard for the wind power industry, DL 796-2001 was formulated based on the operating experience of imported wind turbines and the needs of the localization process. The standard systematically regulates the safety requirements of the entire wind power production process for the first time, filling the gap in the industry.
Core content structure
| Chapters | Key requirements | Technical indicators |
|---|---|---|
| Personnel qualifications | Level 3 safety education/annual examination/3-month internship period | 100% certified |
| Installation safety | Lifting wind speed limit/guide rope configuration/torque verification | Wind speed ≤12m/s (blade) |
| Operation and maintenance | Regular inspection/lightning protection detection/fire management | Grounding resistance ≤4Ω |
Key Technical Specifications
Wind Turbine Installation
Lifting operations must meet the following requirements: Specialized lifting equipment load factor ≥ 2.5, bolt tightening torque error controlled within ±5%, and overspeed test to be verified under rated wind speed 120% conditions.
Operation and maintenance safety measures
A case study of a wind farm showed that the gearbox burst due to direct maintenance without manual pressure relief of the hydraulic system. Article 7.27 of the standard clearly stipulates that the pressure relief valve must be opened first and the pressure gauge must be reset to zero before operation.
Implementation suggestions
- Establish a two-person supervision system, especially for high-altitude tower operations
- Configure a weather monitoring system to provide real-time warning of excessive wind speed
- Carry out protection device tests every quarter and record action parameters
- Develop a intelligent inspection system to automatically record bolt torque data
Direction of standard evolution
With the development of offshore wind power, it is necessary to add:
- Safety distance specifications for ship berthing
- Salt spray corrosion protection standards
- Emergency escape device configuration requirements
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