7 Tips for Choosing a Corrugated Pipe for Wiring( Cable Line)

click fraud protection

Contents

  1. №1.What is a corrugated tube and why is it needed?
  2. №2.Material performance corrugated
  3. №3.Design features of corrugated
  4. №4.Light and heavy corrugated tubes
  5. №5.Diameter of corrugated pipe for electrical wiring and their color
  6. №6.Manufacturers of corrugated pipe for wiring
  7. №7.Peculiarities of working with corrugated

The times when the wiring was simply walled into the wall are long gone. This is very inconvenient, because in which case access to the cable will be difficult. About the insecurity of such a decision, probably, it is not even worth talking. The corrugated pipe helps protect the cable from mechanical stress, moisture and plays the role of a dielectric to increase convenience and safety. In some cases, corrugated pipes cannot be done at all, at least this is stated in the electrical equipment installation rules( ПУЭ).There are a lot of different variants of its execution, so before buying it is important to figure out how to choose a corrugated pipe for electrical wiring, familiarize yourself with the assortment and all possible variations.

instagram viewer

№1.What is a corrugated tube and why is it needed?

The corrugated pipe can be made of different materials, but its structure remains unchanged. It consists of areas with different cross-section, which regularly alternate with each other. Sections of smaller diameter are distinguished by thinner walls and provide the pipe with excellent flexibility and ability to stretch: you can bend the corrugated pipe at almost any angle. Areas of slightly larger diameter differ in increased thickness and play the role of stiffening ribs, all loads and impacts are placed on them.

The use of plastic corrugated pipes for electrical wiring yields a number of additional benefits :

  • protection of wires from mechanical damage and the negative influence of the environment;
  • additional moisture insulation, which is especially important for rooms with constantly high levels of humidity;
  • fire safety assurance. The self-extinguishing PVC corrugated pipe does not burn and prevents the spread of fire;
  • no need to perform additional insulation such as shielding and braids;
  • the ability to diagnose and quickly replace the wiring or part thereof;
  • durability, which can reach 50 years.

№2.Material of execution corrugated pipes

For rooms of different types and purposes, with different conditions of temperature and humidity choose corrugated pipes from of different materials .Currently the most popular solutions are:

  • polyvinyl chloride ( PVC), which due to special additives has the ability to self-damping;
  • low pressure polyethylene ( HDPE) provides the most flexible pipes;
  • high-pressure polyethylene ( LDPE) is used to organize hidden wiring in structures that are not subject to fire( brick, foam block, concrete, etc.).The material can also be used to create the outer layer of double-layer corrugated tubes;
  • polypropylene ( PP) is used in rare cases and is indispensable when wiring is established during the construction of a monolithic technology;
  • polyamide ( PA) has increased waterproofing, so it will be useful in rooms with high humidity levels.

The most popular option is PVC, HDPE and LDPE pipes are also often used, their performance characteristics differ slightly. All of them are resistant to moisture, corrosion, do not rot, withstand temperatures from -25 to + 950C.

Note that PVC pipes is the best option in terms of fire safety, but such corrugations have a minus - low resistance to ultraviolet rays, so PVC pipes are better used for organizing hidden wiring or placed inside buildings. Pipes from PND are not so afraid of ultraviolet, so they can be used outside the buildings. They are more resistant to cold and heat, but less resistant to fire.

If we are talking about laying electrical wiring in combustible material( a vivid example is wood), then the metal corrugated pipe is best to use. It costs more than all plastic counterparts, so in other cases it does not apply.

№3.Design features of corrugated pipe

. Corrugated pipes are divided into:

  • single-layer;
  • double layer.

With single-layer pipes, everything is clear with just one name. Double-layer assumes the presence of an outer corrugated layer and an inner smooth one. The latter are used less frequently, but they allow the cable to provide even greater resistance to mechanical stress.

probe can be located inside the corrugated pipe. This is a steel wire that runs along the whole pipe. The probe greatly facilitates the process of tightening the wires in the corrugation. On sale you can find corrugated pipe and without probe .It is cheaper, but with the tightening of the cable it will have to suffer.

№4.Light and heavy corrugated pipes

Depending on the installation conditions and further operation, it may be necessary to use corrugated pipes of different designs, according to which they are divided into the following types:

  • light;
  • heavy;
  • super heavy.

light corrugated tubes are small in thickness, weigh a little, bend very well, take the necessary shape perfectly, and therefore are as simple as possible in installation. Minus - low resistance to mechanical stress. Such pipes are mainly used for internal wiring, but it is also possible to use them for the organization of external wiring, if the corrugation is not subjected to strong pressure. Lightweight pipes can be used under plasterboard structures, above suspended and suspended ceilings, as well as in a car.

heavy pipes have thicker walls that can withstand even more serious loads, both mechanical and climatic. Such corrugated tubes are used for cement-concrete screed, plaster, for laying roads under the ground.

There are also super heavy pipes , which are capable of providing the maximum level of wiring protection. Such products are recommended to be used in medical and educational institutions where safety comes first.

№5.The diameter of the corrugated pipe for electrical wiring and their color.

. The corrugated pipe is available in coils, the can be 50-100 meters long. for light corrugations and 2-25 meters for heavy ones. Coils are packed in shrink film of polyethylene for ease of transportation and better preservation of the pipe itself. The external diameter of the corrugated pipe ranges from 16 to 50 mm. , internal diameter - from 11 to 40 mm, much depends on the type of material used.

The diameter of the corrugations of the should be selected based on the cross section of the wire used and how many wires will be in the corrugation at the same time. The following recommendations have been formed by specialists on the basis of extensive experience:

  • for fitting of thin cables to sockets, installation of computer and telephone networks, alarm systems and lighting devices will suit a pipe with an external diameter of 16 mm;
  • for connecting electrical devices use a corrugation of 20 mm;
  • between distribution boxes; wiring is mounted in a corrugation with a diameter of 25 mm;
  • for connecting electric boards it is better to use a pipe of 32 mm;
  • wiring between floors is better to hide in a pipe with a diameter of 40-50 mm.

For laying wiring underground use double-walled heavy corrugation, the diameter of which can reach 200 mm.

If a single segment of the corrugations was not enough, the connection of different parts is performed using special couplings, detachable tees, elbows and elbows.

In the production of plastic corrugations, the use of special additives is allowed, which allow to paint the material in a specific color , but it does not affect its performance. For convenience, you can use for laying various cables corrugation of a certain color .In order not to get confused, you can rely on a single European standard, according to which:

  • gray corrugation is used for laying general wiring;
  • white - for computer networks;
  • black and brown - for connecting electrical appliances;
  • blue - for floor heating;
  • red - for external wiring.

Practice also suggests that usually uses the standard gray corrugation .Regardless of whether the pipe is colored in some color or not, there should be no foreign inclusions in the material, as well as cracks and chips.

№6.Manufacturers of corrugated pipes for wiring

When you buy a corrugated pipe does not prevent to ask about the quality certificates. This is not a mere formality, but an important safety requirement. It does not interfere with looking at the name of the manufacturer, since large companies will not risk their reputation and manufacture products of inappropriate quality. Among the largest manufacturers of corrugated pipes, whose products are represented in domestic stores, it is worth noting:

  • LLC "Company" Ecoplast "- a domestic company that manufactures and sells a wide range of materials for electrical wiring, includingproduces corrugated pipe. The range includes products from PVC, HDPE and PP, light and heavy pipes, with and without a probe, of different diameters. Production is standardized to ISO 9001, and the products meet all European requirements;
  • CJSC RUVINIL is one of the largest Russian manufacturers of electrical products. Since 1998, the company has mastered the production of a huge product, using modern technology and high-quality raw materials. The company produces corrugated pipes made of PVC, HDPE and LDPE with a diameter of 16 to 63 mm;
  • company “ MosElectroPlast ” is another fairly large domestic company that produces a solid list of electrical installation products. Here the corrugated pipe is made only from PVC, diameter from 16 to 55 mm, there are products with and without a probe, light and heavy;
  • LLC Delta manufactures products under the brand name EnergoPlast. The range has PVC and HDPE pipes, light and heavy, with and without a probe;
  • “Tyumen Corrugated Pipe Plant” produces PVC pipe of different diameters;
  • NASHORN is an enterprise that today is called one of the largest manufacturers of plastic pipes. For the installation of electrical wiring, corrugated pipes are produced here only from PVC, the range is not very large.

№7.Features of working with corrugated

. It is easy to lay a cable in a corrugation, at least for those who have at least minimal electrical installation skills. Connecting and organizing a power grid is already a more complicated question, so it’s better to use the help of professionals if you are not confident in your abilities.

General Corrugated Work Principles:

  • tighten cable or bundle of cables in the corrugation is better with someone. First, cut off the necessary length of the pipe fragment. Plastic corrugation can be cut with a regular knife, and the probe in it - with pliers or side cutters. After cutting, the steel wire must be held, otherwise it may drop inside. Wire bent. If it is necessary to tighten the bundle of wires, it is better to tighten them in several places with tape. The harness is attached to the probe using the same electrical tape or due to the winding wire. If one cable is laid, it can be simply pierced in the place of isolation. Before starting to pull the end of the twist wrapped with tape. It is easier to put the cable into the corrugation together;
  • when external wiring corrugations fixed special clips. When mounting in the gate, special clamps can be used, fastening on quickly solidifying solutions( alabaster) is also allowed;
  • requires that the corrugation of the switches, sockets and boxes is necessary so that the edge of the pipe enters the housing and there are no exposed wires outside;
  • between corrugated wiring and elements of the heating system must be at least 10 cm;
  • if the laying of the corrugations is carried out in a room with a high level of humidity, the connection must be supplied with seals.

A corrugated pipe can make an electrical wiring system in an apartment safer, reduce the influence of external factors on it, but for this, the pipe must be selected and installed correctly.

Tags: Electricity
The best manufacturers of heating radiators

The best manufacturers of heating radiatorsEngineering Systems

Content Top 5 manufacturers of aluminum radiators Global Radiatori Sira Industrie Fondital Nami Rifar Top 5 manufacturers of bimetal radiators RADENA Rifar Elegance Oasis Millenium Top 5 manuf...

Read More
Installation of heating system

Installation of heating systemEngineering Systems

Content Required Tools Types of radiators Aluminum radiators Steel radiators Bimetal radiators Cast iron radiators Heated towel rails Plinth radiators Types of pipes Steel pipes Copper pipes ...

Read More
What is the best septic tank to put on the cottage - types of septic tanks to give

What is the best septic tank to put on the cottage - types of septic tanks to giveEngineering Systems

Table of Contents How does a septic tank work? Choosing a septic tank Volume and productivity Material septic tank Septic tank and soil type Manufacturers of septic ...

Read More
Instagram story viewer