Cable supports for overhead lines

Technical Data

Material:

Aluminum or steel – the most commonly used materials, ensuring durability, corrosion resistance, and strength.
Composite materials – used to reduce overall weight and ensure greater resistance to environmental impacts.
Application:

Designed for various types of overhead lines, both high and medium voltage.
Suitable for securing wires with various insulation types and diameters.
Mounting System:

The holders have special fastening devices, such as hooks, brackets, and securing straps, to ensure the safe attachment of wires to supports or poles.
Additional devices, such as extra mounting brackets, are often used to provide greater stability and reduce the risk of possible damage.
Voltage and Load:

The holders are designed to withstand various load levels, depending on the type of overhead line and wire thickness (e.g., from a few kW to hundreds of kW).
They can be adapted to hold both thin and thick lines, depending on their specifications and usage conditions.
Installation:

Typically installed on metal supports or concrete poles specifically designed for overhead lines.
Fastening can be done with bolts, hooks, or straps, depending on the type of holder.
Usage:

Electric transmission lines: Cable holders are used in both high and low voltage overhead lines that transmit electricity from power stations to consumers. They are the main component ensuring cable safety and stability.
Commercial and industrial systems: These holders are also used in industrial and commercial electrical systems where overhead lines supply power to manufacturing plants, warehouses, and other industrial sectors.
Indoor and outdoor lighting: Some overhead lines that supply outdoor or city lighting systems also use cable holders to ensure safe wire attachment.
Outdoor infrastructure: Cable holders are used in other outdoor infrastructure systems, such as alarm systems, telecommunication lines, and industrial control systems.
Heat supply systems: Used in heat energy transmission lines where cable holding is required in open environments, where temperature fluctuations and mechanical loads can occur.
Advantages:

Environmental resistance: Cable holders made of durable materials protect wires from mechanical damage and adverse environmental factors (wind, rain, sunlight).
Strong and secure mounting: Ensures stable and long-term cable attachment, reducing vibration and movement risks that could cause wire damage.
Easy installation: Cable holders are easily installed in both industrial and residential areas as they are often lightweight, compact, and typically fastened with bolts or hooks.
Wide application: Suitable for use in various power supply lines, both high and low voltage, making them versatile and adaptable in many fields.
High safety level: Ensures that wires are firmly secured and protected from environmental factors, reducing the likelihood of short circuits and other faults.
Disadvantages:

Limited protection rating: Some cable holders do not have a high protection rating (e.g., IP20), making them vulnerable to moisture or extreme environmental conditions.
Need for additional fastening: Some cable holders may require additional mounting tools or accessories (e.g., extra fastening straps) to ensure maximum stability.
Time and labor costs for installation: For large cable networks or lines, the installation process may take time, especially if many holders and more complex mounting methods are required.
Heavy load capacity: Some holders may not be strong enough for high-load systems, requiring specialized holders that can withstand higher voltage or load.
Cable holders for overhead lines are essential components ensuring safe and reliable wire installation and attachment. They protect the wires from environmental factors such as wind, rain, and snow, and reduce the risk of mechanical damage. Properly selected and installed cable holders guarantee stable and long-term electricity supply, help ensure safety, and reduce the risk of failure.