DL/T 796-2012 in English
VALIDWind Farm Safety Procedures
- Issued on:2012-08-23
- Implemented on:2012-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$233.00
| Standard No: | DL/T 796-2012 |
| Document status: | VALID |
| Title in English: | Wind Farm Safety Procedures |
| Title in Chinese: | 风力发电场安全规程 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2012-08-23 |
| Implemented on: | 2012-12-01 |
| Superseding: |
DL 796-2001 Code on safety of wind farm
|
| Professional Classification: | DL-Electricity |
| Related Keywords: | wind farm safety procedures introduction background
original wind turbine installation safety core safety requirements electrical safety safety control |
| Related Topics: | dl/t+886-2012
dl/t305-2012 dl/t 860.7420-2012 dl t 886 2012 dl/t5455-2012 dl/t 5272-2012 dl/t 5273-2012 dl/t1171-2012 dl/t 5282-2012 Electrical Safety Regulations Wind Farm Safety Regulations DL796 DL/T 5457-2012 DL/T 796-2012 Wind Farm Safety Acceptance Wind power related Specifications for use of wind turbines Jinchang wind farm safety tools ys/t 796-2012 dl/t1144-2012 |
Introduction
Background of Standard Revision and Technological Evolution
This standard is a systematic upgrade of the 2001 version based on the 2009 Energy Industry Standard Revision Plan (National Energy Technology [2009] No. 163). The main changes include:
- Three new modules: basic requirements for work site, unit commissioning safety, and emergency response
- Reconstruct the safety measures chapter and subdivide the original wind turbine installation safety measures into 5 sub-items
- Integrate the inspection and maintenance requirements to form a three-in-one management system of commissioning/inspection/maintenance
Comparative analysis of core safety requirements
| Items | Requirements of the 2001 version | New/enhanced content of the 2012 version |
|---|---|---|
| Tower climbing work | No weight limit is specified | Personnel weight + weight ≤ 100kg, and a new 18m/s wind speed ban is added |
| Lightning protection system | Only grounding detection is required | It is specified that the resistance of the lightning channel is ≤ 0.5Ω, and the replacement cycle of the pull wire in the salt fog area is increased |
| Overspeed test | No separate regulations | Requires personnel to evacuate to the bottom of the tower, and prohibits other tests from being carried out before completion |
Key points for safety control of key equipment
Special requirements for wind turbine installation
Impeller hoisting:When the wind speed limit is not clear, the general threshold of 8m/s (blade)/10m/s (nacelle) is implemented, and the double guide rope system must be used.
Typical case:During the installation of a 1.5MW unit, the pitch mechanism was not locked, resulting in a sudden rotation of the impeller and a breakage of the hoist.
Implementation suggestions
- Staff training: Must include special certifications such as GB 26860 electrical safety and GB/T 6096 seat belt testing
- Periodic inspection: Focus on monitoring key components such as the brake system (semi-annual inspection) and backup power supply (quarterly charging and discharging)
- Emergency plan: A slow-descent device should be installed for cabin fires, and the use of carbon dioxide fire extinguishers is prohibited (confined space)
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