Electrical terminations play a fundamental role in the reliability and safety of power distribution systems.
In medium-voltage networks (15 to 36 kV), polymeric and disconnectable terminations are widely used due to their superior insulation characteristics, mechanical strength, and ease of installation. But what exactly are these components?
Polymeric terminations are insulation solutions for electrical cables composed of high-performance polymeric materials, such as elastomers and silicones, which provide high electrical, mechanical and environmental resistance.
Disconnectable terminals are modular accessories that allow the safe connection and disconnection of medium voltage cables without the need to completely shut down the system, ensuring greater operational flexibility.
In this article, we will discuss the main advantages of these solutions, highlighting their benefits compared to other technologies and their importance in modernizing electrical infrastructure.
1. Greater Resistance to Weather and Adverse Environments
Polymeric terminations are designed to withstand extreme weather conditions, such as high humidity, UV radiation, and temperature fluctuations. The polymeric material used in these terminations is highly resistant to degradation, significantly reducing the risk of premature failure.
This is especially relevant for outdoor network applications, where exposure to environmental agents can compromise the durability of electrical connections.
Disconnectable terminals, in turn, are manufactured with high-performance insulating materials, which prevent the formation of electric arcs and improve system performance in environments with high levels of pollution and humidity.
2. Ease of Installation and Maintenance
Unlike conventional terminations, which require complex installation processes, polymeric terminations are easy to apply, reducing working time and operating costs.
They do not require special equipment for installation and can be applied to various types of cables, including dry and impregnated cables.
Disconnectable terminals allow for faster maintenance, as they allow cables to be connected and disconnected without the need for complete system disassembly. This facilitates quick interventions, reducing grid downtime.
3. Reduced Losses and Increased Reliability
Conventional terminations, when poorly installed or subjected to severe conditions, can present problems such as partial discharges and insulation degradation, leading to electrical failures.
Polymeric terminations, being manufactured with advanced dielectric materials, minimize these problems and ensure stable performance over time.
Disconnectable terminals offer an additional advantage: their modularity allows for the rapid replacement of damaged components, avoiding systemic failures and increasing the reliability of electrical networks.
This is essential for critical sectors such as industries, hospitals, and telecommunications infrastructure, where continuity of power supply is essential.
4. Operational Safety
One of the main benefits of polymeric and disconnectable terminations is the safety they provide to operators and the electrical system as a whole.
The insulating materials used in these technologies reduce the risk of electrical discharges and increase protection against electrical surges.
Furthermore, disconnectable terminals are designed to allow safe connection and disconnection without the risk of exposure to hazardous voltages. This is especially important in systems that require frequent maintenance or in networks with high operational criticality.
5. Compliance with Technical Standards
Polymeric and disconnectable terminations strictly comply with international and national standards, such as NBR 9313 and IEC 60502-4, ensuring that products are manufactured and tested within the safety and performance standards required by the electrical sector.
Compliance with these standards is essential to ensure the efficiency of the electrical system and avoid the risk of failures that could compromise the operation of medium voltage networks.
Invest in polymeric and disconnectable terminations
Polymeric and disconnectable terminations represent a significant advance for medium voltage networks, providing greater durability, safety and ease of maintenance.
Their weather resistance, simplified installation and compliance with technical standards make these solutions ideal for applications in industrial, commercial and critical infrastructure environments.
Investing in these technologies ensures greater reliability and efficiency for electrical systems, reducing operating costs and increasing the useful life of network components.
However, it is important to mention that they must be purchased through a trusted supplier, who will guarantee good quality and compliance with product standards.
At Trifásica Elétrica you will find polymeric and disconnectable terminations from trusted brands!
Trifásica Elétrica is an Advanced Distribution Center that has over 15 years of experience from its technical staff, bringing together the entire line of materials for 15 to 36 kV lines.
If your company is looking for safe, high-performance electrical termination solutions, considering polymeric and detachable terminations could be the key to a more robust and efficient system.
THE Trifásica Elétrica is an Advanced Distribution Center which has more than 15 years of experience of its technical team, bringing together the entire line of materials for 15 to 36 kV lines.
So if you are in need of medium voltage circuit breakers or other materials for primary cabinet, Contact us! It will be a pleasure to help you!
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