For the safe laying of power and low-current electrical networks, flexible PVC pipes are used. A corrugated pipe for a cable is its protective casing, which, at the same time, is considered an ideal dielectric that protects structures and a person from electric current in case of cable damage and breakdown or fire in case of a short circuit. The peculiarity of corrugated pipes is that they have incredible flexibility, which makes their installation simple and convenient. At the same time, labor costs are significantly reduced and the possibilities of laying cable networks are expanded.
Varieties of corrugated pipes for electrical networks
Corrugated pipes are widely used by professionals and home craftsmen for laying electrical and telephone wires, television, as well as computer and power cables. Corrugated pipes are produced:
- from PVC (or polyvinyl chloride) - self-extinguishing plastic compound;
- from HDPE (or low-pressure polyethylene), having a high rate of flexibility;
- from LDPE (or high-density polyethylene), as a rule, for concealed installation in structures made of non-combustible materials or as an external corrugation for the manufacture of two-layer pipes;
- from PP (or polypropylene), for conductive channels in monolithic construction;
- made of PA (or polyamide), with a high degree of protection against the ingress of water.
Polymer pipes with corrugated profile are intended for both hidden and open laying of wires and cables. By design, they are:
- single-layer, where the outer and inner surfaces have a common wall;
- two-layer, when there is a corrugation on the outside, and a flexible, smooth surface is located inside.
Corrugated PVC pipes differ according to the version.
- Lightweight corrugated pipes are laid inside buildings, they have the greatest flexibility, have thin walls and are able to fit compactly on any bends, repeating their contour. They are often used for installing cables under wall and ceiling sheathing.
- Heavy (or reinforced) corrugated pipes are much stronger, their walls are thicker, and they are laid in a concrete-cement screed, concrete floor base, underground and outdoors.
For the convenience of pulling wires through electrical corrugated pipes, they are equipped with metal probes in the form of a steel cable, which is connected to the cable and pulls it out from the back. In this case, the installation of the electrical network is much faster. But manufacturers produce corrugated pipes without broaches. They do not differ in quality, but their price is somewhat lower.
Corrugated pipes for electrical networks are produced with diameters of 16-63mm. Manufacturers supply them with a length of 15-20-25 meters, as well as 50 and 100 meters, as a rule, in coils packed in sealed bags of shrinkable polyethylene film. Rigid corrugated pipes are sold in lengths of 2 or 3 meters.
In addition to plastic pipes, corrugated stainless steel pipes are produced by the industry, but their cost is much higher, so they are used much less often for laying cables.
Advantages and characteristics of corrugated pipes
Regardless of the version, corrugated flexible pipes made of self-extinguishing PVC:
- durable (service life exceeds 50 years) and do not lose their properties over time;
- moisture resistant;
- low flammable;
- resistant to shock and compression, rotting and corrosion;
- provide reliable protection of cables in a wide temperature range (from -20 to +55 degrees);
- environmentally friendly and safe;
- they are light in weight, therefore they are problem-free during transportation and storage;
- chemically resistant;
- make it possible to quickly replace a cable that has become unusable;
- universal;
- easy to install.
The dielectric strength of corrugated PVC pipes reaches up to 2000V with an insulation resistance of 100 ohms.
Selection of PVC corrugated pipes for cable
In plastic pipes, cables for various purposes can be laid, ranging from low-voltage networks to power ones. The size of the protective electrical casing is selected depending on the diameter of the electrical wire, the number of cables to be pulled and their purpose.
If it is necessary to supply electricity to lighting fixtures, a corrugated pipe with a diameter of 16 mm will be enough. To power switches and sockets, it is better to use a casing with a diameter of 20 mm, and if several wires are located inside the pipe, corrugated pipes with a size of 40-63 mm should be chosen. For any of the options there is a corrugated PVC pipe, the price and quality of which will be acceptable even for the most demanding customer.
A corrugated pipe should be chosen with a metal probe, which is a rigid steel wire that provides trouble-free cable pulling through a plastic casing. The monetary savings when buying a pipe without a probe will turn out to be insignificant, and labor costs will decrease significantly.
Any home master can lay corrugated pipes on his own. But one should take into account the factor that not everyone understands the intricacies of connecting electrical wiring. For this, it is better to invite a specialist.
Corrugated pipes are laid in strobes, when installing suspended or sheathing systems, as well as in an open way, performed mainly in house systems.
Corrugated PVC pipes for cables can be laid inside or outside any building structures, as they are fireproof. But if it is possible to install them inside non-combustible or slow-burning materials, then it is better to choose a safer option. You should also avoid the open method of laying in places of direct exposure to ultraviolet rays.
Mount the electrical network in the casing as follows:
- first, a corrugated pipe for the cable is laid in an open or closed way;
- the end of the electrical wire is twisted with a steel broach (probe);
- gently pull the cable from the other side of the corrugated pipe, which, if necessary, is cut with any available cutting tools (knife, scissors, saw).
With hidden laying, corrugated pipes are fastened in the body of the main building structure with cement mortar, and with open laying, they are mounted to the base with special clamps.
Short description
Electrical corrugated pipes (TU 3464-001-42790588-99) are designed for laying electrical, telephone and television wires and cables. They provide additional protection of the cable against mechanical damage, protection against electric shock if the cable insulation is damaged.
The pipe is made of non-flammable PVC and HDPE of light and heavy series, both with and without probe. The probe is designed for ease of installation. First, the pipe with the probe is laid into the wall, and when installing the cable, you only need to connect the ends of the cable and the cable and pull the cable from the opposite end of the pipe. At the same time, the time spent on cable installation is reduced by 3 times.
The heavy type pipe is distinguished by additional strength (wall thickness) and is designed for installation in a cement screed or for pouring into concrete. Unlike flexible metal hoses, the corrugated pipe is light and convenient for transportation, loading and storage, being a dielectric, it does not need grounding and is not subject to corrosion.
Symbol structure of PVC corrugated pipe according to TU 3464-001-42790588-99
"L" is light.
"T" is heavy.
"0 / 1" - without broach / with broach.
The whole pipe is packed in small hermetically cellophane coils of 100, 50, 25, 20 and 15 m. The pipe can be stored for a long time in dirty, dusty or damp rooms.
The shelf life of pipes in the manufacturer's packaging is 2 years.
The corrugated pipe is supplied in coils with a total length indicated in the table.
|
Outside Diameter D (mm) |
Inner diameter d (mm) |
Number of meters in the bay |
|---|---|---|
Specifications
|
Material |
Self-extinguishing PVC compound |
|
Installation conditions |
For concealed wiring in walls, ceilings, floors |
|
Degree of protection |
IP 55 version UHL2 according to GOST 15150 |
|
Mounting at temperature |
from -5°С to +60°С |
|
Strength |
Over 350N per 5cm at +20°C (light series) |
|
Dielectric Strength |
Not less than 2000V (50 Hz, for 15 minutes) |
|
Insulation resistance |
At least 100 MΩ (500 V, for 1 min.) |
|
Fire resistance burning |
Does not support combustion |
Short description
Rigid electrical pipes are designed for laying electrical, telephone and television wires and cables. They provide additional cable protection against mechanical damage, protection against electric shock in case of damage to the cable insulation. The pipe is made of non-combustible PVC of light and heavy series. The heavy type pipe is distinguished by additional strength (wall thickness) and is designed for installation in a cement screed or for pouring into concrete.
Distinctive qualities of a rigid pipe from a corrugated one:
a) Due to the smoothness of the pipe, cable laying is not difficult, which reduces the time spent on cable installation;
b) A wide range of accessories makes it possible to install electrical wiring of any complexity;
c) Provides waterproofing when properly installed.
Main technical parameters
The pipe is produced with a diameter of 16, 20, 25, 32, 40, 50, 63 and a length of 2 and 3 m.
|
Outside Diameter D (mm) |
Inner diameter d (mm) |
Section length (m) |
Packing (m) |
|---|---|---|---|
|
13,3 |
2 / 3 |
60 / 90 |
|
|
17,2 |
2 / 3 |
50 / 75 |
|
|
21,7 |
2 / 3 |
40 / 60 |
|
|
28,3 |
2 / 3 |
20 / 30 |
|
|
35,9 |
2 / 3 |
20 / 30 |
|
|
45,3 |
2 / 3 |
10 / 15 |
|
|
56,5 |
2 / 3 |
10 / 15 |
|
Material |
Self-extinguishing PVC compound |
|
Installation conditions |
For concealed wiring in walls, ceilings, floors |
|
Degree of protection |
IP 55 version UHL2 according to GOST 15150 |
|
Mounting at temperature |
from -5°С to +60°С |
|
Strength |
Over 350N per 5cm at +20°C (light series) |
|
Color |
Grey |
|
Dielectric Strength |
Not less than 2000V (50 Hz, for 15 minutes) |
|
Insulation resistance |
Not less than 100 MΩ (500V, for 1 min.) |
|
Fire resistance burning |
Does not support combustion |
Short description
Tube made of polyvinylchloride compound (GOST 19034-82) is designed for protection and additional insulation of current-carrying elements in various electrical devices operating at voltages up to 1000 V DC and AC.
Specifications
Tube brand: TV40; plastic compound grade: PVC r.
In appearance, the presence of metallic inclusions is not allowed. On the outer surface of the tube, small foreign inclusions, material inhomogeneity, slight roughness and traces from the forming tool are allowed.
|
The name of indicators |
Requirements GOST 19034-82 |
|
|---|---|---|
|
Electrical strength at 20°C |
Not less than 15 kV/mm |
|
|
Specific volume electrical resistance |
Not less than 1012 ohm*cm |
|
|
Electrical strength at low temperature |
Not less than 10 kV/mm |
|
|
Electrical strength in high humidity conditions |
Not less than 10 kV/mm |
|
|
Electrical strength at elevated temperatures. |
|
|
|
Coupling pipe - box, gray color. |
||
|
Rotate 90 degrees pipe-pipe with small radius, gray color. |
||
|
The knee opening, 90 degrees, color is gray. |
||
|
Opening tee, grey. |
||
|
Coupling pipe - pipe, gray color. |
||
|
Coupling for corrugated pipes, transparent, polyethylene. |
||
|
Clamp holder, nylon, grey. |
||
|
Clip holder, grey. |
||
|
Plastic bracket with a nail, polyethylene, gray color. |
Corrugated pipe system (series: FL, FH, BL, BH) is a professional cable support system for concealed / open electrical wiring in walls (along walls), ceilings (along ceilings), floors of residential, administrative and industrial premises.
The system consists of corrugated plastic pipes of various diameters and external and internal junction boxes and shields.
The purpose of the corrugated pipe system is to provide a reliable electrical wiring package with guaranteed savings in labor costs and installation time.
The system planning process can be carried out both at the design stage or the first stages of construction, and during reconstruction on site. At the same time, an important detail is the ability to add and replace wires and cables at any time. All components of the system are additional insulators, and the properties of the material exclude possible ignition of the cable from a short circuit of flame propagation through pipes and cables.
System characteristics:
- Diameter of corrugated pipes: 16-50 mm
- Option: with or without probe
- Material: self-extinguishing PVC compositions and HDPE compositions (polyethylene)
- Mechanical strength: 350-750N / 5cm
- Insulation resistance: not less than 100MΩ
- Dielectric strength: not less than 2000V
- Installation temperature: from - 25C to + 60C
- Degree of protection: IP55
- Box dimensions (АхВхН): 80x80x36 - 310x240x125 mm
- Number of sealed inputs: 4-10
- Degree of protection: IP44 - IP55
- Application: - for outdoor wiring
- for internal wiring
System advantages:
The corrugated pipe system is a more practical solution for installation and operation.
- Significantly cheaper than traditional analogues, such as: metal hose and metal pipes.
- The system of pipes and components represents a hidden / open highway, so if it is necessary to expand the cable network, the wires are laid in the same pipes without destroying the wall surface.
- Possesses high characteristics of resistance to hostile environment and excludes corrosion.
- Corrugated pipe systems do not require grounding.
- Corrugated pipes are equipped with a steel broach (probe) for quick and easy pulling of cables and wires. Using the probe, you can repeatedly pull the cable through the pipes.
- The pipe material is an excellent dielectric, and also protects the network from damage and moisture penetration, which is especially important in the event of leakage currents.
- System components are an integral part of wiring in solid walls, on them or in plasterboard partitions and false ceilings.
- The system is lightweight and easy to install, transport and store.
- Corrugated pipes of the system have high plastic characteristics. This, in turn, leads to the solution of problems in case of violation of the geometry of the premises.
- A wide range of boxes and pipe fixing components are available.
- Pipes are made in different colors.
The system is certified in accordance with the standards:
- fire safety of the Russian Federation
- State Standard of the Russian Federation (GOST-R)
- Epidemiological Service of the Russian Federation
Corrugated PVC pipe is a truly indispensable material that is significantly superior to other types of pipes in various areas of use. Plastic pipes have a wide range of advantages, while their disadvantages cannot be called significant.
What are corrugated PVC pipes
Corrugated PVC pipe is a product made of polymers. Polyvinyl chloride itself, from which the corrugation is made, quickly became popular due to its undeniable advantages and low price. In fact, the scope is quite wide, and it is easy to choose the optimal variety for each task. Due to its good flexibility, the corrugated PVC pipe easily passes even in hard-to-reach places in the room and allows you to minimize the time for installation work on cable laying.
The flexible corrugated pipe is able to withstand mechanical loads, and also eliminates the possibility of damage to the cable. Due to the material from which it is made, it is isolated from currents, which allows you to safely carry out the installation of electrical cables without fear of receiving an electric shock.
LDPE and PVC, what's the difference?
The main difference between pipes made of high pressure polyethylene in relation to pipes made of polyvinyl chloride is the scope of their use. According to fire regulations, LDPE pipes (LDPE) are not suitable for laying electrical cables in them, since they spread combustion, unlike PVC pipes. Therefore, they should be laid in a monolithic non-combustible environment (in other words, they must be poured directly into concrete). Since the laying of pipes of this type is only allowed hidden, this limits the scope.
The second difference is that, unlike polyvinyl chloride, polyethylene is easily recycled, which increases the degree of environmental friendliness.
The third difference between LDPE pipes is their wider temperature range compared to PVC pipes: from -50 to +90 degrees Celsius.
These differences are quite fundamental, so it is necessary to clarify the material from which the pipe is made before buying (they look almost the same outwardly).
The use of LDPE pipes instead of PVC analogues often causes fires, so it is necessary to mention the differences in materials.
Advantages and disadvantages of the material
There are a number of undeniable advantages of using this type of pipe, among them are the following:
- the flexible corrugated pipe is an excellent dielectric and is incombustible (when exposed to a direct flame source, it slowly melts, but has the property of self-extinguishing, thereby preventing the spread of flame through it),
- wind and waterproof,
- differs in durability, and does not lose the protective properties over time,
- has a good degree of protection against the effects of physical exertion,
- dielectric strength - up to 2000 volts,
- PVC is good insulation, pipe resistance reaches 100 ohm,
- high environmental friendliness and low toxicity of the material,
- durability (calculated service life up to 50 years),
- the flexibility of the pipe allows you to form routes of varying geometric complexity without incurring additional costs.
- Of course, this type of pipe is not a full-fledged replacement for communication systems from other types of pipes for a number of reasons that are usually considered to be disadvantages:
- polyvinyl chloride is unable to withstand high temperatures. Installation is not recommended at an ambient temperature below 5 degrees Celsius. The maximum working temperature of the material is 45 degrees Celsius,
- corrugated PVC pipes do not tolerate direct sunlight, so it is not recommended to lay them outdoors (except for those varieties that have a reinforced structure).
Varieties of corrugated pipes
To date, two types of pipes are available: those intended for sewerage and analogues for pulling power and low-voltage cables (computer UTP and telephony). But besides this, there is a classification according to the type of strength:
- lungs,
- heavy,
- superheavy.
Light corrugation should be used only for the installation of external networks and only inside the building due to its sensitivity to sunlight (ultraviolet exposure). The flexible corrugated pipe allows you to create mounting connections at any angle, up to 360 degrees - which saves money when equipping complex wiring diagrams.
Heavy corrugated pipe is characterized by greater mechanical strength and the possibility of laying underground.
Extra-heavy PVC corrugated pipe is used in areas of increased physical activity. Such material is laid in soil (to a depth of more than one meter), in concrete, directly under the roadway. This variety is recommended for use in places with increased requirements for the safety of electrical wiring (such buildings include any building with a constant large crowd of people: hospitals, schools, hotels, etc.).
PVC pipes for cable laying
Corrugated PVC pipe is used for laying cables for various purposes - from telephony to high voltage electrical cables (up to 2000 volts). It is able to protect the cable primarily from mechanical damage and weather conditions, and also acts as a protective dielectric layer.
The diameters of corrugated pipes are varied, but there are certain specifications that must be used for work. For example, a PVC pipe with a diameter of 16 mm is sufficient for laying a cable to lighting fixtures, a larger diameter of 20 mm is required for sockets and switches, and for laying wiring systems between floors and in walls, the pipe diameter must be at least 40 mm. You should also take into account the cross section of the cable and its amount inside the corrugation in order to exclude the possibility of dense laying. PVC corrugation has a working temperature of -25 to +60 degrees, which allows for installation work on installation indoors at any time of the year. Corrugated pipe, the price of which is not high, is better than other protective shells for electrical work.
Each type of corrugated pipe is produced in two versions: with and without a probe. The probe is a rigid metal wire passing through the entire corrugation, which ensures the convenience of pulling the cable (it is enough to attach the end of the cable to this wire and pull it out from the other side). Such a simple engineering solution, according to experts, has reduced the time spent on pulling cables up to three times. In addition, the great flexibility and light weight of the corrugations allow it to be laid without special tools and, in fact, without expending effort. A corrugated PVC pipe with a probe (pull) will be the best choice for creating a cable system.
Any cutting tools, including ordinary scissors, are sufficient for trimming, fastening to the surface occurs with the help of special fasteners, often plastic brackets that are mounted to the surface with nails act as their role (nails are used as the basic fastening element, but do not fit every wall ).
Thanks to good flexibility and the ability to attach at any angle, as well as low weight, it is possible to pull the cable even in hard-to-reach places.
Corrugated PVC pipes for sewerage
The corrugated pipe for sewerage has proven itself quite well. When installing new systems or replacing old ones, it is easier and more convenient to work with such materials. Sewer pipes are able to withstand heavy loads and weights, which allows them to be mounted directly underground. Often they are made in two layers (this is especially true for corrugated pipes), from high pressure polyethylene for the inside of the pipe and low pressure polyethylene for the outside. Like other types of PVC pipes, sewer pipes are not suitable for use in high temperature environments, the maximum allowable operating temperature is +40 degrees.
It is mainly used for domestic sewage (corrugation is preferably used to drain water through the washbasin sink, or for a toilet, most often found as a drain pipe from a washing machine). For sewerage, rigid PVC pipes of a larger diameter are mainly used, which are distinguished by a significantly higher degree of mechanical strength.
Main advantages:
- high strength,
- good resistance against chemicals,
- tightness,
- environmental friendliness,
- light weight (which is especially important during installation and transportation),
- low price (a distinctive feature of all types of PVC pipes for any task),
- resistance against the appearance of mold and microorganisms.
High temperature water exposure (up to 80 degrees) is allowed, but only for a short time. The pipe material may melt, which will lead to a violation of the integrity of the pipe and possible leaks.
Polyvinyl chloride (PVC) has excellent technical characteristics, due to which pipes made from it are extremely in demand in construction. PVC pipes for electrical wiring fully comply with the requirements for this type of product when laying electrical networks: they provide easy installation, the ability to replace the cable if necessary, reliable insulation and even aesthetics. What other advantages PVC pipes have for laying cables, what varieties are on the market, and how to install them when arranging power supply, you can learn from our article.
Characteristics of electrical PVC pipes
The electrical pipe is made of self-extinguishing polyvinyl chloride and high and low pressure polyethylene. These materials are endowed with technical characteristics that allow the installation of pipes of this type to create cable support systems. In addition, the electrical PVC pipe serves as an additional layer of insulation for the cable, provides fire resistance and protection of the wiring from mechanical damage.
Advantages
PVC pipes have a number of undeniable advantages:
- durable: they have initial strength, are not subject to corrosion, are resistant to wet and aggressive environments, to ultraviolet radiation;
- hygienic and environmentally friendly;
- easy to install: light, easy to saw, glue, solder;
- have a low coefficient of deformation;
- do not carry a significant load on the structure;
- provide (with appropriate accessories) complete tightness, in which the cable is reliably protected from dust and moisture;
- practical: they have a low price, during operation they do not require painting and other maintenance.
In addition, the installation of the cable with their use is carried out quickly and efficiently, this is facilitated by the absence of roughness on the inner wall of the pipe. Such systems are practical in operation, since the replacement of electrical wiring in them is carried out without the need to open the trench and dismantle the ceiling.
Thanks to these qualities, PVC pipes for cable laying have no alternative today. They are an indispensable component of power supply systems and are successfully used in the construction of residential, industrial and administrative facilities.
The PVC electrical pipe is non-combustible, it has the highest fire safety category among polymer counterparts.
Varieties
PVC electrical pipes are usually divided into two main categories:
- smooth hard (smooth-walled);
- corrugated (flexible corrugated pipes).
Rigid PVC pipe for cable is mainly used outside building structures, corrugated pipe - when laying power supply systems inside ceilings (under plaster, in floor screed, etc.).
Also, their classification is determined according to GOST 18599-83, which distinguishes 4 categories of electrical pipes:
- T - heavy;
- C - medium;
- SL - medium-light;
- N - non-standard.
They can be produced with different diameters: 8 ÷ 250 mm; with different wall thicknesses and in different colors.
Corrugated PVC pipe with a cable pulling probe deserves special attention. The main feature of this model is the presence of a special rigid steel wire, which greatly facilitates the process of mounting the wire inside the cable support system.
The corrugated pipe is attached to the bearing planes with the help of special latches-clips, which are easily detached if it is necessary to change the direction of the cables or move part of the wiring to another place.
Cable installation in PVC pipe
Use of accessories
The advantage of laying cables in PVC pipes (compared to metal pipes) is obvious:
- PVC electric pipe is cheaper;
- does not require grounding;
- under normal operation can serve up to 50 years;
- can be operated at temperatures from -25 to + 70 0 С;
- do not form and do not accumulate condensate;
- do not require expensive welding;
- do not require maintenance.
In addition, when using these pipes, the project is significantly cheaper, because insulation for PVC pipes is not needed, it itself plays the role of protection, therefore the cable can also be used in a lightweight design.
For open wiring (walls, ceilings), according to current standards, a smooth PVC pipe is used for the cable, a corrugated pipe is used for laying the cable inside structures made of fireproof materials.
When arranging power supply on wooden and other combustible bases, only metal pipes or a metal hose should be used!
For high-quality installation, it is recommended to use additional components that are selected based on the diameter and model of the pipe. These include tees, connectors, turns, crosses, dowel-ties, clips, etc. Consultants of the department of electrical products will help you pick up all the necessary details.
Mounting technology
The installation process looks like this:
- Carry out the marking of the future placement of pipes with electrical cables. At the same time, the distance from the heating elements must be at least 0.5 m so that the cables do not heat up. Also note the location of the shield boxes.
- The required number of fasteners is determined at the rate of 1 fastener for every 10-15 cm of pipe.
- Prepare all the necessary elements and check if the voltage in the mains does not exceed 1500 V.
- If necessary, cut the products into sections of the desired length.
- They prepare products - level the wires, if necessary, clean the inner surface of the pipes.
- The cable is pulled through the elements of the pipeline, and then its sections are mounted in accordance with the diagram.
Installation of the PVC pipeline must be carried out with a slope in order to avoid the accumulation of condensate in it.
- Fasten the pipeline at regular intervals in accordance with the markup.
- Shield boxes are installed in which the cables to be laid are connected into nodes.
- Check the reliability of the insulation between the laid wires.
Installation subtleties
A smooth or corrugated pipe for electrical wiring is laid taking into account the following important points:
- When installing pipes in a floor or brick wall, use metal brackets; you can fill the system only after it is securely fixed.
- When passing the pipe from the floor to the wall or when it enters the cavity of the plate, use special corrugated connectors.
- Do not allow the formation of creases, this will make it difficult to pull the cable later.
- Always use solid pieces of pipe to connect two points in a straight line.
- When biting the broach with a side cutter, do not let the wire go inside the pipe, you will have to get it out by making an additional incision on the pipe.
- If there is no special probe in the pipe kit, use an elastic metal or nylon broach. It must first be launched into the pipe, and then the cable tied to it must be pulled.
- The wires must be prepared for pulling, for this they must be fastened with PVC tape in several places.
- To prevent the harness from slipping, it is necessary to securely connect it to the broach. To do this, the wire is wrapped around the bundle and pulled together with pliers. The ends of the cable should not stick out in different directions, otherwise it will be impossible to pull through.
It is more convenient to pull the cable with two people. If you do the work alone, then the broach must be securely attached to the main structure.
The main purpose of the corrugated pipe is the laying of internal cable systems, but some models can be used for outdoor underground laying. Such models are double-walled corrugated pipes with a diameter of up to 200 mm.
Standard PVC pipe for cable is used not only for laying electric power cable, but also for laying low-voltage cables: telecommunication, telephone, communication and signaling cables.