Wooden poles in the service of man

Wooden poles - why still relevant?

For the production of bearings used:

• metal;
• concrete;
• tree.

on high-voltage power lines, mainly installed metal supports, since only such a powerful design can withstand a lot of weight insulators and conductors.But what about the old, sturdy tree?Is wood support forever a thing of the past?

probably too early to write off the wooden poles, because most of the indicators in many respects they are superior to metal and reinforced concrete, and in some cases without them simply can not do.What, then, have the advantages of wooden support:

1. wood is much cheaper products made of reinforced concrete.
2. They are much easier to deliver to the installation site.During one flight a special car can carry dozens of such towers.
3. It is difficult to find a replacement for wooden poles in areas of seismic activity.
4. They easily withstand the pressure of the wind.
5. Thanks to its low weight (compared to metal and concrete), they perfectly support the wires.
6. With its high dielectric properties, such posts remain safe even after the destruction of insulators.
7. wooden electric pillar able to stand without any problems for at least forty years.While concrete structures are designed only to 25-35.

wooden electric pillar - service feature natural materials

Wooden poles for power lines produced from coniferous trees: spruce, pine and fir.These wood tar is present, which is the best natural antiseptic and a preservative.Make poles made of logs, resulting in a clean trunk, without bark.

Next timber is impregnated with a special compound, thereby their service life increases significantly.The treatment fluids used as shale oil or creosote, as well as mixtures which include chromium, copper and arsenic.Best of all antiseptic solution absorb pine logs.

Due to this processing, installation of wooden poles is carried out without any preparation: directly into the ground.The only thing that needs to be done prior to installation of supports - is to close their ends with special protective covers or paste.

Installation of wooden poles and other supports for economic needs

And now let's remember that wood is used not only in industry.For example, the carved wooden poles fence served as a decoration master farmsteads.Now this tradition is gradually revived.The choice of material for the pillars, mainly depends on the preferences of the owner and the thickness of the purse.And now there is to choose from what.

Take, for example, made of wood poles.They are simple and reliable, but, alas, a little expensive.And besides, do not stand for a long time without a special impregnation.Even the treatment of copper sulfate will increase the life of only ten years.They are often used for small fences and low hedges.

asbestos-cement pipes are affordable, durable and durable.The only drawback - it is the complexity of mounting rails for them.Most often today as pillars of the metal pipes are used.They are distinguished by their reliability, durability and longevity.

Even frozen water inside will not be able to destroy them completely, which can not be said about asbestos supports.

posts shall be established quite simply.It all depends on the nature of the soil at the construction site fence.First drill holes are drilled, which established the post, and then filled with concrete.But if on the loose sandy soils, this method works, then it is absolutely heaving inefficient.

If the site soil is light, it is possible to do without concreting, but just drill a hole the diameter of the pillars.On heaving parts of wells drilled slightly more than the diameter of the poles, but in this case, the free space is filled with concrete, and is filled with fine gravel.After that, it carefully ram.