Transmission and
distribution of electricity is carried out through
power lines, which can be of two types: overhead and cable. The first are installed on supports, and the second are laid on cable structures or in the ground. This set of measures allows for reliable communication of power plants, transformer substations and consumers.
The design, design and installation of electric poles is regulated by relevant regulatory documents, such as GOST and PUE. Installation of power transmission line supports is carried out according to special technological maps indicating the number of workers, the amount of work and the required technical devices, and also has a strict sequence. The support is a structure that holds the system of insulators and cables. Therefore, before installing directly, you must complete several steps:
1. Road marking. At the design stage, it is determined where each electric pole will be installed, their total number and type. In addition, the distance between the supports is indicated.
2. Well development. The assembly team travels to the place and conducts the drilling of the required number of wells in certain places. At this stage, the participation of specialized equipment is required.
3. Each electric pole is installed, its base is securely fixed. The columns are aligned and checked for defects and damage.
4. Fastening of insulators and suspension of cables. The final stage of laying power lines should be carried out only with the permission of the relevant organizations and performed exclusively by qualified specialists with the necessary level of tolerance.
The installation process involves unconditional compliance with all the rules and requirements that are determined by the project and regulatory documents.
Classification of power transmission towers:
1. Wooden. They are considered the cheapest and easiest way to lay an electrical network. Such designs are characterized by relatively low weight and high elasticity, which, in turn, allows you to install an electric pole in conditions of significant wind loads. The service life of wooden supports is 40-45 years (due to the fact that this material is subject to rotting processes and has a low level of strength).
2. Metal. These designs are able to withstand difficult weather conditions and the impact of significant loads. An undoubted advantage of such supports is also the possibility of assembling them from several parts, which sufficiently simplifies transportation and allows assembly work to be carried out directly at the installation site.
3. Reinforced concrete. An electric column made of this material is characterized by high strength indicators, corrosion resistance, reliable and long-term operation (more than 50 years) even in the most adverse climatic conditions. The result was the widespread dissemination of these supports.
Install the electric pole: issue price
The cost of this set of measures includes not only the price of the support itself, but also the payment for the delivery and labor of installation workers, and in some cases the dismantling of old structures. In addition, the material from which the support is made should be considered.