How to install pull wires on high voltage lines
The installation and pulling of high-voltage lines is an important link in power engineering construction and is related to the safe and stable operation of the power grid. Recently, there has been a lot of discussion on the entire network about the installation of cables for high-voltage lines, especially construction specifications, safety precautions and technical points. This article will combine hot topics in the past 10 days to introduce you in detail to the steps, precautions and related data of installing high-voltage wire cables.
1. Basic steps for installing cables on high-voltage lines
The installation of high-voltage wires is usually divided into the following steps:
| steps | content |
|---|---|
| 1. Preparation | Check whether the tools and materials are complete to ensure the safety of the construction environment. |
| 2. Measurement and positioning | Determine the position and angle of the pull wire to ensure it meets the design requirements. |
| 3. Install cable posts | Secure the guy wire stakes to ensure their stability. |
| 4. Pull wire fixation | Connect the pull wire to the high voltage wire and adjust the tension. |
| 5. Inspection and acceptance | Check the tightness and safety of the pull cord to ensure compliance with standards. |
2. Precautions for installing cables on high-voltage lines
During the installation of cable pulls, special attention should be paid to the following matters:
| Things to note | Description |
|---|---|
| 1. Security protection | Construction workers must wear insulating protective equipment to avoid electric shock. |
| 2. Material selection | The cable material must be corrosion-resistant, stretch-resistant, and comply with national standards. |
| 3. Environmental factors | Avoid construction in bad weather (such as strong winds, heavy rain). |
| 4. Construction specifications | Strictly operate in accordance with power engineering construction specifications to ensure quality. |
3. Technical points for installing cables on high-voltage lines
The technical points of installing cables for high-voltage lines include cable tension, angle and fixing method. The following is the technical data in popular discussions in the past 10 days:
| Technical parameters | Standard value |
|---|---|
| Pull wire tension | Generally 20%-30% of the wire tension |
| cable angle | The angle with the ground should not exceed 45 degrees |
| cable length | Determine based on tower height and terrain |
| Fixed method | Use U-shaped clips or wedge-shaped wire clips to fix |
4. Common problems and solutions for installing cables on high-voltage lines
In actual construction, you may encounter the following problems:
| question | solution |
|---|---|
| The cable is loose | Readjust the tension and check that the fixtures are intact. |
| Wire corrosion | Check regularly and replace corrosion-resistant materials. |
| Angle deviation | Re-measure and position to ensure compliance with design requirements. |
5. Summary
Installation and pulling of high-voltage wires is a highly technical and safety-requiring job. Through the introduction of this article, I believe you will have a deeper understanding of the steps, precautions and technical points of installing cables for high-voltage lines. In actual construction, it is necessary to strictly follow the specifications to ensure the safe and stable operation of the power grid.
If you have any other questions about the installation of high-voltage wires, please leave a message in the comment area to discuss!
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