Poles of electrical transmission lines

Could you imagine your life without electricity and all the benefits it provides?

It is even difficult to calculate how many times a day we use electricity. Countless times. Daily. At home, in the office, in a store, and even outside. Everywhere we are surrounded by electrical appliances, which have become indispensable assistants for us. In the evenings the lights are on in our homes and a familiar TV show is on. The Internet has become an indispensable attribute of our lives: from study and work to entertainment and games. But still, connection with relatives and opportunity to keep abreast of the latest news have become the most important value in the modern world.

All this and much more became possible due to the transmission of electricity over a distance, from power plants to end consumers. The transmission process takes place through power grids, which include voltage converters, power lines and switchgears.

Power plants transmit high voltage of hundreds of kilovolts, which, in the process, needs to be reduced to meet the needs of different users. For this purpose, converters and overhead lines of different voltage are used, which deliver electricity to switchgears, where it is distributed to individual consumers.

We manufacture metal poles of electrical transmission lines. They are an integral part of the power transmission system. They serve as a structure for holding overhead lines’ wires and lightning protection cables at a specific distance from each other and from the ground.

In addition, poles can be used to change the order of wires on the line, to organize branches and crossover points. Poles of electrical transmission lines have different purposes depending on the functions they perform. You can learn more about the types and functions of poles of electrical transmission lines here.

Among the types of metal poles of electrical transmission lines, there are lattice poles and multifaceted poles. Although lattice poles are widely used, multifaceted poles are gaining popularity due to their advantages.

A multifaceted pole of electrical transmission lines looks like a faceted conical trunk with traverses for attaching overhead lines’ wires. The structure of the trunk consists of separate sections (up to 12m each), and the diameter of the pole trunk is determined based on the load provided for it. Additionally, each pole is equipped with a ladder that provides quick access to its upper parts for maintenance or repair.

 

Multifaceted poles of electrical transmission lines are very lightweight and easy to install:

1. First of all, you need to perform all the foundation works, and immediately before installing the pole, make sure that the foundation is solid. The installation of multifaceted poles of electrical transmission lines includes the use of an anchor bolt to fasten the pole to the foundation.
   
   
2. Next, you proceed to the assembly of pole sections. The sections must be fully assembled with all additional elements (service platforms, traverses, ladder rungs, etc.).

The further installation process depends on the chosen method. There are several methods:

1. Gradually, starting from the bottom, the sections are lifted and mounted one by one, connecting to each other under the influence of a pulling load (if they are telescopic), or fixed with bolts (if the sections involve a flange connection). This method is mainly used when the area has insufficient open space to place a fully assembled pole.
   
   
2. All sections of the pole are connected to each other on the ground. After that, the fully assembled pole is lifted and fixed to the anchor bolt foundation using a flange connection.
   

 

Multifaceted poles of electrical transmission lines are known for their aesthetics, enhanced strength characteristics and a number of other advantages, including:

• STRENGTH AND RELIABILITY:
  The design of poles based on multifaceted bent racks is characterized by the stiffeners. They are resistant to twisting compared to lattice poles. There is no "domino effect", which is typical for electrical transmission lines on reinforced concrete racks and which has catastrophic consequences. Due to their structural elasticity, multifaceted poles of electrical transmission lines are more resistant to wind loads. Also, they are considered to be the most vandal-resistant.

• MINIMAL LAND ACQUISITION:
  A significant advantage of multifaceted poles of electrical transmission lines is that they require a small area for installation, in contrast to lattice poles. They are simply irreplaceable in limited installation conditions.

• EASY TRANSPORTATION:
  The cost of transportation of such poles is low, as it is carried out by placing the sections of the pole inside each other, due to its telescopic design. This greatly simplifies the process of transporting and unloading pole’s components.

• INSTALLATION SPEED:
  The installation of multifaceted poles of electrical transmission lines does not take much time and effort due to a small number of assembly units. Unlike lattice poles, the assembly of which involves a lot of elements.

• DURABILITY AND CORROSION RESISTANCE:
  To extend the service life, to protect against corrosion and the influence of weather factors (ice, etc.), the poles are subjected to anti-corrosion treatment by hot dip galvanizing. The service life of galvanized poles is 50-70 years.

 

For each specific project, taking into account its needs and features, it is important to individually approach the choice of a multifaceted poles of electrical transmission lines. Our engineers carefully calculate the load and take into account all the requirements to choose the optimal design. They pay attention to the number of sections, traverses, faces and other parameters to ensure the safety and reliability of the structure.

If you have any questions or are ready to discuss your project, please contact us in a convenient way.