HDPE pipes for protecting cables in the ground. HDPE technical pipe for cable

Cable routes of any size need protection from external factors, accidental mechanical damage, which can lead to a violation of the integrity of the shell of current-carrying conductors. Previously used metal pipes, concrete, brick protection are quite expensive protection methods to manufacture. The amount of work involved in constructing a shell from them is very large. Accordingly, the cost of arranging such communications is prohibitively high. An alternative is HDPE pipe for laying cables, which has high strength and a long service life.

HDPE pipe for cable laying. Low price, high quality.

Laying cables using polyethylene pipes low pressure a cost-effective way to protect it from damage for a significant period. The production of HDPE pipes does not require extremely high costs, while the quality remains high. The service life of HDPE pipes for laying cables exceeds half a century. In such a pipeline it is very easy to replace failed segments of cable routes.

HDPE pipes for laying cables in the ground. Supplies from the manufacturer.

Basically, cable communications are laid underground. Using HDPE pipes, they can be quickly equipped, even if there is no cable. Subsequently, it is laid into pipelines without much difficulty. Purchasing HDPE pipes for laying cables in the ground directly from the manufacturer will help reduce costs. After all, large volumes of supplies imply corresponding discounts for the buyer of the products.

HDPE technical pipes for laying cables indoors.

Our company produces technical HDPE pipes for cable laying. They make it easy to install electrical wiring in rooms. In a floor screed, concrete pouring or brick wall A smooth polyethylene pipe can quickly insert electrical wiring. If it fails during operation, replacement will not be particularly difficult.

HDPE pipe for laying cable in a coil.

Pipes with a diameter of 20 mm, 32 mm, 40 mm and 50 mm, as well as 63 mm and 75 mm are produced in one hundred and two hundred meter coils. This is convenient when installing communications over long distances, when laying cable routes in open spaces. An HDPE pipe placed in a trench, with a cable installed in it, can be immediately covered with soil. This method significantly reduces costs when using special equipment.

Electrical pipe HDPE PE for cable laying. Selling in sections.

The production lines of our company allow us to produce electrical technical pipes PE various shapes, diameter depending on customer requirements. The material used in their manufacture is high-density low-density polyethylene. Electrical HDPE Pipes over 75 mm in diameter have high rigidity and are produced in sections of 12 meters. The buyer can order pipes for cable laying in segments of the required length.

Various diameters of HDPE pipes for cable laying.

Non-pressure pipes are manufactured in a standardized manner, with diameters of 20 or more. The catalog presents their main types. Starting with a section of 75 mm, products are produced in 12-meter sections. The customer can choose standard diameter HDPE pipes for cable laying or order custom sizes polyethylene pipes up to 225 mm.

HDPE pipe 20 mm for laying cables in small projects.

20 mm HDPE pipes for cable laying are used in small projects. As a rule, they are supplied to customers in coils, but can also be supplied in lengths. HDPE pipe 20 mm is used in construction when laying is necessary hidden electrical wiring in an apartment, cottage, private house. They can also be installed with open cable routing to prevent cable damage.

HDPE pipes 160 mm for laying cables in large communications.

In cases where cable communications are installed in residential areas, in large industrial enterprises, where a significant number of individual cables are required, HDPE pipes with a diameter of 160 mm or more are used. In addition, the diameter of 160 mm allows you to make plumbing pipelines for draining sewage.

Technical HDPE polyethylene pipes for cable laying wholesale and retail.

The customer can purchase HDPE pipes manufactured in accordance with technical requirements for these products, retail or wholesale. Retail allows you to order only the required number of meters. Wholesale beneficial to companies in which the use of technical polyethylene pipes is their daily activity. We deliver goods throughout Moscow, the region, and within the Russian Federation. Clients from any region of Russia can order from us required amount HDPE pipes for cable laying and receive them in the shortest possible time.

Polyethylene pipes – best option for laying cables in the ground, since they have excellent technical characteristics that can be considered advantages. Namely:

1. The product has a low specific gravity, which makes it possible to easily deliver and install the HDPE 160 pipe for laying cables without additional equipment, simple connection using couplings;
2. Polyethylene pipes are not subject to rotting and corrosion, unlike metal products;
3. Pipes have excellent insulating properties;
4. High flexibility. Due to the fact that HDPE technical pipes bend well, they can be used when installing a system with many turns without fear of damaging the material.

Smooth HDPE technical pipe for cable.

Such pipes are most often used for laying cables in a pipe. Pipe diameter from 25 to 225 mm

Double-walled HDPE/LDPE pipes for cable.

Application: for protecting low- and low-voltage cables high voltage when laid in soil, water, in pipes, blocks, on bridges and overpasses. To protect communications - pipelines, gas pipelines, electrical networks, telephone, television and computer communication lines.
Material: outer layer - HDPE, inner layer - LDPE.
Classification by color: red - for electrical cables, blue - for communication systems and telecommunications, black - for general purpose cable lines

The Plast Torg company offers a full range of polyethylene pipes suitable for various areas of use. Thanks to our well-functioning logistics and warehouse program, we can guarantee accurate delivery of products on time. All products are certified and accompanied by permits.

In the person of Plast Torg you will find a reliable and trusted supplier.

Check out the product catalog on the company's website, you will find the names of all models and current prices. If you have any questions, contact the manager.

A pipe for laying cables in the ground is universal solution for many construction and engineering tasks, such as laying electric cable in the depths, be it the Internet, networks, signaling system or any other.

This polyethylene product avoids air gasket electrical networks in areas with frequent stormy and gusty winds.

Laying cables in the ground is one of the most popular methods of laying wires.

That is why the range of pipes specifically designed for this purpose is not limited to one or two options.

Why is this seemingly high-cost product so popular?

Reasons for using pipes for laying cables in the ground:

• With the aerial method of placing the cable, any strong gust of wind can disrupt its integrity, which will not happen in the bowels of the earth.
• When icing in winter time“breakthroughs” often occur throughout the year.
  IN in this case there is protection against vandals (it is much easier to cut off part of the cable hanging in the air than to dig it out of the ground).
• Damage caused by downtime of a plant or enterprise can be significantly higher than the savings during installation.
• If a short circuit occurs, there will still be no fire.

What pipes are used for laying cables:

• Steel (not suitable for power lines and do not protect the line in case of integrity violation).
• Asbestos-cement (heavy, harmful to human health due to asbestos content).
• High or low pressure polyethylene (strong, durable and lightweight pipes that are not subject to any rotting or corrosion).
• Propylene (made of heat-resistant and plastic propylene polymer).
  PVC (polyvinyl chloride).

HDPE (low-density polyethylene) pipes have become extremely popular in the last few years. They are light or heavy corrugated, smooth-walled rigid, halogen-free, double-walled. Each option performs its own functions.

Corrugated due to corrugations, they have increased elasticity, and when a reinforcing mesh is used inside their structure, they become heavy. This is where they got their name. Double (double-wall) shells contain not only corrugation, but also another layer - polyethylene high pressure.

A peculiarity of this type of building material is the fact that the ambient temperature when laying such pipes does not matter. They are also lightweight and easy to install, and their service life is about fifty years in theory, in practice even longer.

There are several types of pipes suitable for laying cables in the ground. Among them: asbestos, PVC, HDPE, double. For different types wiring uses pipes that differ from each other in quality.

Use of HDPE pipes and their features

Why is it cheaper? The fact is that the material for the production of this product is waste from other industries with the addition of the necessary synthetic additives.

Among the advantages of HDPE pipes are the following:

• Long service life (nominally 50 years).
• No application required welding machine for connecting sections of the cable route.
• Light weight.
• No additional grounding is required during use.
• Pipes do not deteriorate when exposed to environment, its factors, as well as the time factor.
• They can withstand temperatures ranging from minus twenty-five to plus seventy degrees Celsius.
• HDPE pipes do not emit toxic and other harmful substances, and also do not release condensation onto the surface.
• Primary polymer integral part of the product in question, easily bends in any direction, and therefore does not require additional fasteners and connecting parts. However, you should not bend the pipes too much - the cable will not pass through.

HDPE pipes are found wide application in today's technological internet world. With the right approach to the process and the correct installation, you can achieve excellent result: the property won’t need much repairs yet for a long time or won't be needed at all.

Technical parameters, markings and types of protective pipes

What do HDPE pipe cables protect against?

From mechanical damage, stray current, chemical effects of soil and its components.

Depending on the purpose of use, electrical and purely technical HDPE pipes are distinguished.

The first type includes additionally protected corrugated or double pipes ( distinctive feature corrugated products have a smooth inner surface).

For technical purposes, simple single-layer HDPE products are used, which do not provide additional protection.

Corrugated pipes can be suitable for laying telephone, television, computer, and electrical cables in the ground.

It is important that the current flowing through the mentioned wire is alternating or constant, but not more than 1 kV. In turn, corrugated pipes are divided into two subtypes: with or without a probe.

If the first one was chosen for the work, it will go quickly and without problems. When purchasing a product without a pulling mechanism, you will also have to purchase a reusable mechanism for pulling the cable.

Technical parameters of pipes include such concepts as pipe thickness, wall thickness, color, compliance with GOST, presence of markings, number of layers. Usually for this product it is carried out next rule. The larger the diameter of the pipe, the thicker its walls.

The last parameter can vary over a wide range. The minimum wall thickness is two millimeters. In this case, the diameter of the pipe itself ranges from 16 to 50 mm. The maximum wall thickness is almost three centimeters. In this case, the diameter of the pipe is twenty to twenty-five centimeters.

Wear-resistant HDPE pipes can withstand pressure from twenty to thirty-eight Megapascals, and the linear expansion coefficient is one hundred and forty Pascals. But not all underground cable installation work requires such strong and protected products.

Therefore, manufacturers and sell in stores have a whole line of different pipes:

• Lightweight - withstands pressure up to a quarter of a Megapascal
• Medium light - up to four tenths
• Average - up to six tenths
• Heavy - up to one Megapascal

On each “sleeve” for laying the cable there is a corresponding technical specifications marking. This symbols, showing which parameters a particular product meets.

In addition, marking the pipes allows you to control the compliance of the declared quality level with that of a specific pipe.

Product classes with corresponding markings:

• “T” – heavy pipe
• “ST” – medium-heavy pipe
• “OS” – medium-light pipe
• "WITH" - middle pipe(by weight)
• “SL” – medium-light pipe
• “L” – light pipe

In addition to information on weight, which is directly proportional to the strength, it is also indicated by the wall thickness. To protect a thin cable underground (cross-sectional area - one and a half to two square millimeters), you will need a pipe with a radius of eight to twelve millimeters.

Moreover, the number of wires can vary from one to four pieces. If the cable has a cross-section of six to sixteen square millimeters, you will need a HDPE pipe with a diameter of twenty to forty millimeters, respectively.

The final choice should be based on a calculation of how many wires will be enclosed in low-density polyethylene. For example, for three cables, each of which has a cross-sectional area equal to ten square millimeters, you need to select the same pipe as for two cables with a cross-sectional area of ​​twenty-five millimeters.

What about thicker wires? If the cable in cross section contains from thirty-five to seventy square millimeters, then larger pipes will be needed. Namely: from 40 to 50 mm in diameter.

If the pipe is not corrugated, it cannot bend and is sold in limited lengths: for a diameter of up to nine centimeters, the length of the product can be one hundred or two hundred meters.

As the clearance width increases, the length of the polyethylene sleeve decreases - for example, twelve meters each.

Another important criterion for assessing the quality of a pipe is an indicator called SDR. It is calculated by mathematical division outer diameter by wall thickness. As this special indicator increases, the overall strength of the pipe becomes lower.

Laying technical protective conduits is a process similar to laying electrical conduits. The differences are only in the purpose and labeling. HDPE pipes of this type are used for laying underground networks that are not electrical. For example, heating pipeline, sewerage.

To produce such pipes, waste from other industries is used. For example, from the “PE” brands thirty-second, sixtieth and eightieth, as well as hundredth. The radius of the product can vary from one centimeter to twenty-five.

In addition to technical and sewer water, such polyethylene products are used for non-pressure water supply systems, storm water, drainage systems, for land reclamation and crop irrigation.

Installation is carried out using fittings, adapters and couplings, since they cannot bend like corrugated pipes. In some cases, when it is necessary to ensure 100% sealing, special butt welding or a compression fitting is used.

The quality and operating parameters of HDPE pipes are judged by the markings, which show all the important technical features products.

Read more about corrugated pipe you can watch the video:

How to lay a cable underground

To lay the cable in special pipe underground you need to follow a clear sequence of the following actions:

• Inspect the HDPE product for damage. The same should be done with the cable itself.
• Marking the places where the pipe should be laid.
• trenches of the required depth for the cable (at least twenty-five centimeters).
• Laying the pipe.
• Pulling the cable (it should eventually lie inside without tension).
• Covering the structure with a ten-centimeter layer of sand and a fifteen-centimeter layer of soil or earth.
• Laying warning tape along the entire perimeter of the cable laying (optional).

When performing these works, you need to remember that when laying power cable It is better to avoid the use of adapters and couplings altogether, or to use them only when absolutely necessary. This simple rule must be followed to ensure maximum safe sealing.

Where the structure exits the ground and enters the building, special fittings must be used. Concerning minimum section cables for laying underground, it is recommended to use not the thinnest ones. For example, a wire with a cross-sectional value of four millimeters or more is suitable.

A pipe for laying a cable in the ground under a road, near buildings, industrial structures must take into account the entire maximum load that can be placed on it from above.

But this is not the only requirement for its successful and long-term operation, as well as the operation of the cable located in it.

It is also necessary to strictly follow the installation rules.

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Laying cables in the ground is a fairly popular method of installing lines, despite the high costs. Air lines are constantly exposed to different natural factors, especially suffer when strong winds and icing. Repair work on the lines lead to serious costs, and the damage from the downtime of enterprises left without electricity can amount to fantastic amounts. Laying by trenching also has its own nuances; it requires the use of earth-moving equipment and additional protection from accidental damage. Today, pipes are increasingly used for laying cables in the ground, protecting them from rodents, high humidity, mechanical impact. The use of pipes is regulated by SNiPs and GOSTs; for each type of cable, its own types of these products are recommended. Thus, for laying the power cable you cannot use steel pipes, and they are quite suitable for a control cable.

Range of pipes used for cable laying

For a long time, only steel and asbestos cement pipes were used to protect underground cables. The disadvantage of the first of them was the lack of protection in case of cable breakdown. Asbestos-cement pipes are heavy, fragile and contain a mineral that is far from safe for human health - asbestos. That is why with the advent plastic pipes they have become the main material used in cable laying. Among their advantages:

• low dead weight;
• high strength and durability;
• good insulating properties;
• not subject to corrosion and rotting.

Currently, pipes for laying cables in the ground are made from high or low pressure polyethylene, polypropylene and PVC. All these materials have excellent performance characteristics. The use of pipes with different wall thicknesses, smooth or corrugated, allows you to choose optimal material for each specific type of cable. HDPE pipes for laying cables in the ground are very popular; they are available in the following types:

• light corrugated;
• heavy corrugated;
• halogen-free;
• smooth-walled rigid;
• double-walled

Corrugated pipes for laying cables in the ground can be reinforced with steel wire to give them additional strength.

Double-wall pipes: a combination of practicality and ease of installation

IN last years Products such as those for laying cables in the ground have proven their effectiveness. This system consists of a corrugated shell made of low-density polyethylene and a smooth inner shell made of high-density polyethylene. The pipe has high ring rigidity, which allows it to withstand significant loads. The smooth inner wall makes cable installation as simple as possible, increasing the pace of work. Despite its two-layer structure, the double-wall corrugated pipe for laying cables in the ground is lightweight, which greatly simplifies its transportation and installation in a trench. Installation of this type of pipe can be carried out in a wide range of temperatures, allowing it to work even in winter frosts. Double layer pipe It has high stability to ultraviolet, aggressive chemicals, which expands the scope of its application and simplifies storage. Simple couplings without sockets are used for connections, which makes installation simpler, cheaper and more reliable. The service life of corrugated double-layer pipes is at least 50 years, but in practice it is much longer.

Laying cables in the ground necessary for communications equipment for various purposes. IN industrial scale Hundreds of meters of wires are pulled under roads, within the city, at facilities under construction and other sites that need electricity. Also, laying cables in the ground is often carried out in living conditions, in the country or personal plot. Laying underground, especially when there is a lot of wiring, can become a serious problem if you do not master the technology. Fortunately, today many methods are known and tested, one of them is using a technical pipe as a case.

Advantages of HDPE pipes

Pipe made from low-density polyethylene, or HDPE for short, is lightweight, has good flexibility and durability. It is smooth, black with small inclusions. The production of such pipes is based on the principles of processing recycled materials. This can be packaging film, plastic bags, bottles and other polyethylene products. From them, granules are obtained, small particles of the same size.

Such raw materials are easily processed. Once in the extruder, the granules heat up and stretch to the desired shape. The diameter and wall thickness are selected in advance, and the line is adjusted to suit them. The finished pipes are cooled and distributed into batches. Standard sizes up to 75 inclusive are wound into coils, the rest in sections of 12 meters.

Storage HDPE pipes does not require before installation serious investments. It is enough to find a place hidden from the sun's rays, as polyethylene becomes soft in the heat. As the installers say, the wall is starting to float. As a result, instead of the required, for example, 20-23 millimeters, you will get a pipe with a passage of 25, or even 30 millimeters. Therefore, it is better not to take risks and choose a room in advance.

Stages of ground cable laying

First of all, you need to carefully inspect the wires. They must be solid, without dents or other visible defects. Otherwise, your efforts will be in vain. Damaged communications cannot be saved by any shell.

After checking, they begin marking the area, then dig a trench. It should not contain large stones, debris, glass or other foreign objects. It is advisable to cover the base with a layer of sand of 5 or 10 centimeters. The pipe is placed in the prepared niche and pulled through. This is achieved most efficiently with specialized channel preparation devices.

However, it is difficult for ordinary craftsmen to obtain these devices, especially with a volume of more than 100 meters. A variety of things are used, from fishing line, baby rattle and vacuum cleaner to fittings and liquid soap.

When there are few wires and they are located in a straight line, as in the video, it would be more rational to cut the pipe and push the cable manually. For longer lengths, it is recommended to use nylon threads and metal wire. They are lowered inside and pulled together with the wiring.

Experts advise not to use couplings and other fittings for installing power networks, but to make the communication seamless. The connections may break the seal. This statement is true for open areas. When bringing the network into a room, you cannot do without connecting parts.

At the end, the pipe is covered with sand and soil to a depth of 15 centimeters. It is also necessary to designate the location. Signal tape is suitable for this.

Trenchless cable laying

Horizontal drilling technology was created for installing cable structures in hard-to-reach places. It is mainly used utility services. The essence is a gentle effect that does not violate surface layers soil. First, they study its composition and obtain permission to work, then adhere to the following scheme

1. Drilling a primary well

2. A head with a built-in bevel and feed holes fills the space with a special solution that prevents ground collapses

3. Use a rimmer to increase the passage of the well

4. The HDPE pipe is tightened with a drilling rig.

The process is not fast and quite expensive in terms of equipment. But nevertheless, HDD remains one of the highest quality methods of underground cable laying. The main thing is to turn to professionals and do not forget about control.

The considered methods are considered the most effective and guarantee the safety of the cable. The system will function throughout the warranty period. Of course, special attention should be paid to preparation and adherence to the sequence of actions.