Types of pole stay wires and installation precautions

 

As our standard of living continuously improves, our use of electricity has become increasingly widespread. Utility poles play a crucial role in transmitting electricity to various parts of the world. They address the supply of electricity to different regions by using a steel wire skeleton, which allows the electrical wires to be well connected and can be applied to various areas. They have been widely used in streets, roads, and other fields. So, how are utility pole stay wire installed? What are their classifications?

                                                                

I. Types

The function of stay wire is to balance the forces acting on the utility poles and resist wind pressure to prevent the poles from falling over. Stay wire can be divided into the following seven types:

1. Standard Stay wire: Used at terminal poles, corner poles, and tension poles to balance the tensile forces.

2. Double-Side Stay wire: Installed on both sides of straight poles to enhance the wind resistance of the poles.

3. Four-Side Stay wire: Stay wire are pulled around the utility poles to enhance their stability.

4. Overpass Stay wire: A Stay wire pole is erected beside the road, and an overpass Stay wire is made on this pole. The overpass Stay wire must maintain a certain height to not affect traffic.

5. V-Shaped Stay wire: When the utility pole is tall, has many crossarms, and has many conductors, a Stay wire is installed above and below the combined force point of the pull, with the lower part merging into one, forming a V-shaped Stay wire.

6. Common Stay wire: The Stay wire are fixed to adjacent poles to balance the tensile forces.

7. Arch-Shaped Stay wire: A support is added in the middle of the pole, with Stay wire added above and below to prevent the pole from bending.

Ⅱ. Consider more severe weather conditions.

Based on recent weather conditions, due to global warming causing abnormal weather, it is best to calculate the wind pressure according to the actual situation to determine the installation specifications of the windbreak Stay wire.

Ⅲ. Pay attention to the distance of connection with the conductors.

                                                  

Improper installation of low-voltage conductors or Stay wire, causing the distance between the conductors and the Stay wire to be too close, some insulated conductors even directly contact the Stay wire. Due to long-term wear and tear or friction, the conductor insulation ages or ruptures, which may cause the Stay wire to be electrified, leading to leakage or personal electric shock accidents.

Ⅳ.The fixing and warning of the Stay wire.

Fixed underground through a Stay wire anchor, generally the pit depth is 1.2 to 1.5m according to the size of the pull force, and the backfill soil should have an anti-settling soil platform. The connection between the Stay wire rod and the Stay wire anchor should use double nuts. Stay wire in areas easily accessible to people, especially in pedestrian areas, must have clear warning signs. Incidents that have endangered passers-by due to the lack of warning signs on Stay wire have also occurred. Lessons must be learned, and the protection and warning work of the Stay wire must be done well. Generally, the measure of adding a red and white warning pipe on the Stay wire is adopted to achieve this purpose.

                                                                   

Since electricity is a relatively dangerous form of energy to us, the current under high voltage may cause great harm to the human body, and sometimes even fatal, the installation of the power lines often has a certain degree of danger. Due to the different types of utility pole Stay wire, there are also differences in their installation. Carefully understanding the installation precautions and methods can greatly help us to install better and avoid unnecessary accidents during installation.