Overhead lines play a key role in transmitting electricity. They consist of various elements that cooperate to ensure effective, safe and reliable current distribution. What elements are key and what are their assembly? Today we will focus on this topic.

Cables in overhead lines

The most important part of overhead lines is of course the wires, and only then come the tools, such as rope clamps.. In overhead lines, cables appear:

• Working cable: It can be a single cable or a beam. It is unrelated and is used for electricity transmission.
• Phase cable: working line of the overhead alternating line connected to a specific phase of the transmission system.
• Security cable: an additional cable, made of the same material as a protected work cord. Is attached to the secured cable, it does not relieve it until the break is broken
• Relomourian cable: grounded cable protecting the working cables against direct atmospheric discharges. It can be used for other purposes, such as closing the ground in the end of the grounding
• The grounding cable: combines elements that require grounding with an earth electrode or a grounded pole, e.g. grounding or zero.
• Screen cable: grounded cable used to reduce the intensity of the electric field from working cables. Suspended between the work cords and the Earth or between the work cords and protected objects.

 

The variety of these cables allows the adaptation of overhead lines to various conditions and requirements, ensuring effective and safe distribution of electricity. In the case of corner, resistance, resistance and reliable structures, the end connections of the wires occur or their location goes beyond the elements of support structures. In order to effectively and safely maintain cables, modern attachments are used, which meet specific requirements depending on the type of suspension. In the case of a through suspension, connectors placed in two points, located on opposite sides of the standing insulator, are used. These strategically placed fittings not only support the working cord, but also ensure stability and balance of structure.

 

However, in the situation of extraction suspension, fastenings are based on the use of connectors placed on one side of the insulator, to which a securely attached workshop is solidly attached. This innovative approach not only guarantees the certainty of permanent fastening, but also allows flexibility in the area of structure, eliminating potential problems related to the location of the cable.

Overhead line accessories

To safely create overhead lines, it is necessary to use appropriate equipment, such as wedge clamps. In addition to them, various types of elements are used, which make the whole system work effectively. Elements can be divided into several groups.

 

Various types of clamps are used. The supporters are used to securely attach the wires, especially on cruising poles, ensuring stability and permanent maintenance. Suspending clamps are also used on the through pillars for hanging cables, enabling free flow of energy. Stretching clamps are available, used on both through and end columns, designed to maintain adequate voltage in the wires.

 

Connecting equipment plays another role, i.e. sheds, fittings, orcs, and connectors. They are responsible for effective combination of clamps with insulators and connecting various chain elements, ensuring system integrity. The spans are used to connect wires and cables. They are introduced to effectively connect the cables in the span and for joining the wires on the end poles, ensuring continuity of energy flow. Departures are used to fix beam cables. They provide a constant distance between wires, which is important for maintaining order and organization in the system.

 

The overhead line also requires protective equipment. It includes rings and cones, mounted at both ends of the chains, have a protective function, helping to distribute the intensity of the electric field between insulators. They also protect against arc jumps and potential damage to insulators. Due to work at height, additional equipment, such asladders to the overhead line. Therefore, specific equipment and training are required.

 

The use of these various equipment elements is crucial for the effective functioning of the energy networks, ensuring not only permanent attachment of cables, but also protection against potential threats and maintaining optimal system performance.