Concrete poles for power lines: types of pillars,

Lighting supports made of reinforced concrete are used in the city and outside the city, including for highways, streets and sidewalks, platforms for warehouses and industrial enterprises. Concrete lighting poles are also used for the installation of overhead lines, the voltage indicators of which reach 10 kV. When their parameters are at least 35 kV, supports made of centrifuged concrete are used.

Types of pillars

Lighting supports of this type come in a wide variety of shapes as well as sizes and are manufactured using a centrifuge or vibropress using high-quality concrete reinforced with metal wire.

Similar concrete pillars are of the following brands:

• EHV, as well as C (octagonal form) - weighs from 800 to 1700 kg, reaches 10.5 m in height;
• STSS, as well as SNTSs (with an annular cross section) - weighs from 700 to 1050 kg and reaches a height of 11 m;

• SCC (may be round or conical) - weighs from 700 to 1050 kg and reaches 11 m in height;
• START, and also SV (have a trapezoidal section) - weighs from 800 to 3500 kg and reaches 16.5 m in height.

Specifications

Consider the advantages of the use of reinforced concrete pillars:

• they are resistant to corrosive effects, the effects of chemical compounds, not located to rot;
• the material is not afraid of fire and seismic effects;
• There is the possibility of long-term operation. In this case, the correct production technology must be observed, and subsequently the correct installation was carried out, which makes it possible for the supports to serve for more than fifty years;
• low operating costs;
• reasonable price of construction (in this respect, only wooden supports will be more economical).

Now let's deal with the shortcomings of the product.

• the material is heavy, its weight is at least 700 kg. Accordingly, with its loading, transportation and installation, certain difficulties may arise;
• difficulties of dismantling. Of course, the support can be knocked down using the same tractor, but it is hard enough to free the steel frame and rework the concrete pieces;

Tip: it helps in this case, cutting reinforced concrete with diamond circles of special strength.

• poorly resists mechanical loads, can not withstand sudden shocks and similar effects, such as jolts;

It should be stated that in their characteristics such supports are significantly superior to wooden ones, but inferior to metal ones.

Manufacture of supports

Outdoor concrete poles for lighting are manufactured in stages:

1. In the first step - prepare the reinforcement by cutting or chopping it according to the sizem. For this it is best to use special machine equipment. Then land the anchor heads and prepare the contour spirals. Then bend the contour rods and hinges.
2. Then knead the concrete mix of cement, chemical additives and inert components.. Pour everything into a concrete mixer, cover with water and mix thoroughly. After that, wait a few minutes for the mortar to obtain the desired consistency, and pour it into the paver.

   

1. Prepare special forms for concrete pillars with rods. They must first be cleaned and lubricated, and then place the prepared spirals in them. After that, stretch the heated rods through the spirals, put them on the stops and fix. The spirals are stretched and attached to the rods at 3 points. At each end install on the liner, make technological tubes with loops, while fixing to the formwork.
2. Pour the mortar into the molds, at the same time compact the concrete with an internal vibrator, and then level the surface.
3. Dry the manufactured products.. The instruction requires to put the finished products on the boards and cover them with plastic wrap. Turn on the heating of the blanks, wait a while and remove the film.
4. Transfer the finished supports with the help of lifting equipment to the prepared place where they should be stored and check the quality indicators.. Then weld to them the rods of grounding circuits, paint, determine the indicators of the strength of concrete. At the last stage, they are usually marked and stamped. After that, products can be used and / or sold.

Thanks to the use of advanced technologies during production processes, the excellent quality characteristics of the cooked products are guaranteed. All this must be confirmed by relevant certificates and other certificates.

As mentioned above, the range of lighting supports made of reinforced concrete can be quite diverse, based on various sizes, shapes, and so on. Accordingly, the consumer can choose what he specifically needs.

Tip: if you have to go through a concrete foundation or wall to bring power lines from the pillar to the house, diamond drilling of the holes in the concrete will help you with the help of specially designed crowns.

Conclusion

Today, you can meet concrete poles used as power poles in different places. Due to the inexpensive production technology and long-term operation, the products are rightfully in demand from consumers. An overwhelming number of them are manufactured at the factory, since it is there that you can fully reproduce the entire process chain.

However, there are such home craftsmen who make such facilities for their own needs. The video in this article will help you find additional information on this topic.