The protective pipe system allows for underground routing of telecommunications network cables. It provides the installation with optimal operating conditions, protecting it from the harmful effects of environmental factors. However, in order to obtain solid cable protection, certain assembly rules must be followed and high-quality materials must be used. What exactly should be remembered when implementing such a project?
In this article you will learn:
- how the casing pipe system works,
- what principles should be followed when designing and building such a system,
- what pipes to use to protect different types of cables.
What is a casing pipe system?
Conduit systems are also called telecommunications or telecommunications canalization. They are pipe systems run both inside and outside buildings, which are needed for the installation of fiber optic or coaxial cables. Such systems include:
- pipe runs leading outside,
- cable wells (inspection and storage),
- introduction to buildings.
The protective pipe system is usually based on plastic pipes in various sizes. The most popular diameters are 110 mm, 40 mm and 32 mm. Such pipes make up the so-called primary system. At any time, smaller diameter pipes can be inserted into them, which in turn will create a secondary system.
Check out the Q-Systems brand casing pipes at the Onninen wholesaler
However, it is definitely cheaper and easier to build and operate micro systems. They are based on small diameter pipes (e.g. 7 mm or 14 mm), into which cables are inserted using a blower. Individual sections of cables can be connected with appropriate hermetic connectors. This solution allows, among other things, to reduce friction resistance, reduce fees for renting the roadway and extend the sections between wells. However, it is not without its drawbacks - the micro system does not offer much expansion possibilities, because only one cable can fit in the pipe.
Principles of construction of a casing pipe system
There are two ways to run the pipes of such a system. The first one is based on a reinforced concrete structure, which includes:
- cable pits,
- cable well tops,
- well covers,
- pipe segments,
- cable supply containers.
The second method involves the use of plastics or laminates. This type of construction includes:
- cable pits,
- cable canalization pipes,
- connectors, fittings and other elements for connecting pipes,
- cable supply containers.
Check out the Q-Systems brand casing pipes at the Onninen wholesaler
When building a casing pipe system, you should follow a few basic rules that will ensure its convenient and trouble-free operation. So, during the work stage, pay attention to:
- easy access to cables (for possible network reconstruction),
- appropriate protection against damage,
- tight pipeline connections,
- durability and capacity (additional space for additional cables if necessary),
- compatibility with all types of cables used in telecommunications,
- protection against access by unauthorized persons,
- laying telecommunications cables at the appropriate depth (easy and safe access).
Telecommunications Conduit System – Guidelines
The regulations concerning protective pipe systems are partly described by Polish standards, and partly by the regulation of the Minister of Infrastructure of 26 October 2005 on the technical conditions that telecommunications buildings and their location should meet. The principles of construction of this type of network can be found primarily in the operators' company standards and company and local guidelines.
Primary system
The primary teletechnical sewage system pipes should run as straight as possible. It is worth ensuring that their undulations both vertically and horizontally do not exceed 0.2-0.3%. It is also necessary to ensure maximum tightness of the installation along its entire length, as well as in places of connection with wells or buildings.
Primary systems are laid from precast concrete elements with a diameter of about 110 mm or - increasingly often - from plastic pipes (PE or PVC). In cities, in areas with intensive development, the pipes are mainly laid in open trenches or using trenchless directional drilling and guided thrusting techniques.
Secondary system
When building secondary systems, the principles that apply are very similar to those used for primary systems:
- Pipes must not cross other pipes along their entire length;
- Pipe undulations should not exceed 0.2-0.3%;
- The bottom of the trench must be even and hardened;
- Warning tape should be placed halfway down, above the pipes;
- After backfilling the trench, the soil should be compacted.
Secondary systems are made of HDPE pipes with external diameters of 40 and 32 mm. They can be placed in the pipes of the primary system (e.g. in areas with intensive development) or directly in the ground.
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What products to use when creating protective pipe systems?
The basis of a functional system are high-quality pipes, appropriately matched to the specifics of a given installation. When selecting pipes for a given network, special attention should be paid to the material from which they are made, as well as to its technical properties. The material used should be resistant to difficult environmental conditions and possible mechanical damage. Pipes must protect cables against moisture and the effects of various chemical compounds, as well as against compression.
At the stage of designing and building protective pipe systems, it is worth reaching for reliable products from renowned brands. An example of such an assortment are protective pipes from the Q-Systems offer . In our online warehouse, you can easily obtain cables perfectly adapted to the specifics of the implemented project. If you are working on telecommunications installations, be sure to familiarize yourself with the offers available in our online warehouse. You will find here, among others, such products as:
-
Red corrugated pipe Q-Systems QRK 110 - corrugated protective pipe in sections for protecting cables laid in the ground; characterized by high resistance to compression, compliant with the requirements of PN-EN 61386-24; - Blue corrugated pipe Q-Systems QRK 40/50 FLEX - corrugated protective pipe in sections for protecting cables laid in the ground; supplied with a connector and a rope to facilitate pulling the cables; high flexibility, small bending radius, smooth inner wall, high resistance to compression, compliant with the requirements of PN-EN 61386-24;
- Q-Systems QRD 110 blue split pipe - split pipe for protecting existing cables and wires, compliant with the requirements of PN-EN 61386-24;
- Black smooth-walled fiber optic tube Q-Systems QRGS 32 - for protecting optical and copper telecommunications cables; co-extruded sliding layer.
In the wide range of the Q-Systems brand, you will easily find pipes that are perfectly suited to the nature of the network you are working on. Stock up on the necessary products and ensure absolute reliability of your installations!
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