The process of installing cable lines and optical fibers is a key stage in the construction of telecommunications infrastructure. To achieve maximum efficiency and reliability of data transmission, it is necessary not only to use high quality cables, but also to pay attention to the details related to the laying process itself. One of the main challenges that should be successfully overcome is friction. What solutions are used to minimize friction when laying cable lines and optical fibers?

How do friction forces work?

The force of friction is a common phenomenon in everyday life, and each of us had the opportunity to experience its influence, even when moving furniture. We notice then that the force that we must put into a shift of the object depends on the surface we move on.

The friction force occurring at the interface between the surface and the sliding object is a key factor affecting this dynamics. The friction coefficient is the ratio of friction force to pressure. The smaller the friction coefficient, the easier it is to move the object from point A to B, which makes understanding of friction forces significant in both everyday situations and in more advanced fields of physics. This is a theory, but it is important when laying cable lines and optical fibers. To reduce friction, a slip gel for pulling cables is often useful.

How to minimize friction when laying power lines?

Minimization of friction when laying power lines requires careful planning and taking into account various technical aspects. The key element is the arrangement of cable rollers, cable drum and winch. These factors have a significant impact on the total value of resistance during the process of laying the cable line, which in turn determines the force with which the cable must be pulled. These works require awareness of threats associated with pulling force, angular force and the permissible bending radius.

The location of cable rollers plays a key role. V -type rollers directly behind the cable drum should be properly positioned so that the cable falls on the first roller and move freely after the next ones. It is worth paying attention to the appropriate distance between the rollers and their number. The width of the rollers must allow free movement of the cable.

How to run a cable line route?

After V -type rollers, if the line route is simple, it is recommended to place through rollers in a cable trench. The distance between these rollers is crucial, affecting friction. The rule is clear: the lower the distance, the less friction. The appropriate spacing of through rollers also protects against damage to the cable coating, eliminating the possibility of rubbing against the trench ground. These values are particularly important, especially with high voltage cables. Therefore, planning, precise arrangement of rollers and adjusting the distance between them become key elements in the process of minimizing friction when laying power lines.

Developing the cable on simple, horizontal sections of the cable route seems to be independent of the direction where the final value of the friction force is always the same regardless of whether the cable is developed from point A to B, or vice versa. However, in a sloping area, the direction of cable development takes on significance. It is worth noting that by developing a cable from point below to point above, the final value of the friction force increases compared to the value of friction on horizontal sections of the line route. The slip gel for power cables often becomes necessary. However, when the cable is developed from a point higher in the point below, the final value of the friction force is less than on the horizontal section.

Ideal conditions for building a cable line are a route only in a straight line, which, however, in practice rarely happens. Cable lines often change both horizontally and vertically. On the crew of the route, especially in places where there is a pressure of the cable to the angle roll (angular force), there is a risk of damage to the cable. The value of this force should be estimated at the design stage, based on critical values set by the cable manufacturer.

The arrangement of angular rollers on the creods of the cable route plays a key role in preventing cable damage. These rollers should include the entire crew of the route, and their number depends on the corner of the crew. In addition, anchoring them in the ground and the use of concrete slabs helps in transferring stresses and prevents possible damage to the cable.

Slip gel for energy cables: reduction of friction

The slip gel for optical fibers and cables is effective help when dragging them. It works like a protective barrier that minimizes the risk of damage to the cable coating. It works by reducing the stress and resistance force occurring during the cable dragging process. A good gel is also distinguished by an easy application, it does not create stains, and after drying it does not leave any deposits.

Reduction of friction is more safety and a lower risk of damage to the cable. So it's worth not only planning the cable line well, but also use additional accessories, such as a slip gel.