Wires without insulation

Uninsulated cables - an essential element of electrical installations

Bare wires are a key component of many electrical systems.   At Onninen we offer a wide range of these products. Our experience shows that they are indispensable in a variety of applications. From transmission lines to industrial installations. These cables are characterized by excellent conductivity and durability.

Our offer includes cables made of various materials. The most popular are aluminum and copper. Each has its own unique properties and applications. Aluminum is lightweight and corrosion-resistant. Copper, on the other hand, offers the highest electrical conductivity.

Types of non-insulated cables available at Onninen

Our wholesaler provides a wide range of uninsulated wires. It includes:

• Overhead wires
• Contact wires
• Aluminum cables
• Steel-aluminum cables
• Hanger cables
• Copper wires

Each type of cable has its specific application and characteristics.   Overhead wires are used to build power lines. Contact wires are used in electric traction. Aluminum wires are ideal for outdoor installations.

In our daily practice, we see a growing interest in steel-aluminium conductors. They combine the strength of steel with the lightness of aluminium. This makes them an excellent choice for long spans. Hanger conductors, on the other hand, are often used in mining and tunneling.

Key parameters of uninsulated cables

When selecting non-insulated wires, there are several important factors to consider. The most important of these are:

• Wire cross-section
• Material of manufacture
• Mechanical resistance
• Resistance to weather conditions
• Electrical conductivity

The cross-section of a wire is crucial to its current-carrying capacity.   In our offer you will find cables of different cross-sections. From the smallest to the largest. The selection of the appropriate cross-section depends on the planned load of the installation.

The material of manufacture affects the electrical and mechanical properties of the wire. Aluminum is lighter and cheaper than copper. Copper, on the other hand, offers better conductivity. The choice depends on the specific requirements of the project.

Mechanical strength is particularly important for overhead wires. They must withstand stresses caused by wind and ice. Our steel-aluminum wires perform perfectly in such conditions.

Applications of non-insulated cables in various industries

Uninsulated cables are widely used in many sectors of the economy.   In the power industry, they are used to build transmission lines. In industry, they are used to power machines and devices. An electric railway could not function without contact wires.

Recently, we advised on the selection of cables for a large production plant project. The client needed a solution to power the production line. We suggested copper cables with the appropriate cross-section. They ensured optimal efficiency and safety of the installation.

When modernizing the power grid, aluminum wires are often used. They are lighter than copper, which makes installation easier. At the same time, they offer good conductivity and corrosion resistance. This makes them an ideal choice for outdoor applications.

Many customers ask us about solutions for installations in difficult conditions. In such situations, we recommend steel-aluminum cables. Their steel core provides high mechanical strength. The outer aluminum layer guarantees good conductivity.

Our experience shows that the proper selection of cables is crucial for the safety and efficiency of the installation.   That is why we always advise our clients taking into account the specifics of their projects. We take into account factors such as load, environmental conditions and legal requirements.

At Onninen we offer uninsulated cables from renowned manufacturers. Among them you will find brands such as Elpar and Telefonika. They guarantee the highest quality and reliability of products. Our many years of experience allow us to select proven suppliers.

We often come across the question of the differences between copper and aluminum wires. Copper offers better conductivity but is more expensive. Aluminum is lighter and cheaper but requires a larger cross-section for the same current. The choice depends on the specific requirements of the project.

When it comes to overhead lines, weather resistance is key. Our cables are tested to withstand wind, snow and ice, ensuring reliable operation even in extreme conditions.

Onninen recommends using cables with an appropriate load capacity reserve.   This allows for safe operation of the installation even with increased power consumption. This is particularly important in dynamically developing enterprises.

In our daily practice, we observe a growing interest in high-strength cables. This is due to the increasing demands placed on electrical installations. Our products meet the highest safety and performance standards.

When selecting bare wires, it is worth considering future needs. A higher-capacity installation may prove beneficial in the long term. It allows you to avoid costly upgrades in the future.

We invite you to contact our specialists to select the optimal solutions for your project.   Our experts will help you choose the right non-insulated cables, taking into account all important factors. We guarantee professional advice and the highest quality products.