Optical Ground Wire (OPGW) cables combine the functions of grounding and communication in overhead power lines. Proper installation is crucial for ensuring their effectiveness and longevity. Pls Check below OPGW Cable Installation Guidelines To make sure the installation of OPGW cables can be performed safely and effectively:
1. Preparation and Planning
-Site Assessment: Evaluate the installation site, including environmental conditions, existing infrastructure, and any potential obstacles.
-Documentation: Gather all necessary documents, including installation manuals, technical specifications, and safety guidelines.
2. Materials and Tools
- Ensure all required materials and tools are available, including:
- OPGW cable
- Suspension and dead-end clamps
- Tensioning equipment
- Splice closures
- Safety gear (gloves, helmets, etc.)
3.Transportation and Storage
- Careful Handling: Transport OPGW drums horizontally and avoid any contact with corrosive materials.
- Storage: Store drums in a clean, dry area, avoiding exposure to extreme temperatures and moisture.
4. Installation Procedures
- Cable Stringing:
- Use a non-rotating guide cable for pulling the OPGW.
- Ensure that the pulling force does not exceed the maximum permissible tension, typically 20% below the breaking load.
- Maintain a minimum bending radius of at least 20 times the cable diameter during installation to prevent damage.
- Tensioning:
- Apply constant tension during the stringing process to minimize sag and ensure proper alignment.
- Use tensioning equipment with adjustable limits to monitor and control the pulling force.
- Height Requirements:
- Ensure the OPGW is installed at appropriate heights above ground: at least 3 meters in non-traffic areas, 5 meters in pedestrian zones, and 7.5 meters over highways and railways.
5. Splicing and Termination
- Splice Closures: Use splice closures that comply with ingress protection standards (IP 66 or better) to protect optical fibers from environmental conditions.
- Testing: After splicing, verify optical transmission characteristics and ensure that all connections are secure.
6. Final Checks and Documentation
- Conduct a thorough inspection of the installation, ensuring all components are correctly installed and secured.
- Document the installation process, including any deviations from the planned procedure and all test results.
7. Safety Considerations
- Always follow local safety regulations and guidelines during installation.
- Ensure that the work area is clear of unnecessary personnel and that all workers are equipped with appropriate PPE.
- Avoid working in adverse weather conditions, such as high winds or storms, which could compromise safety.
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Post time: Aug-09-2024