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Volsun three types of insulating protection cover for the overhead lines

Time : 2025-07-18

The safety of overhead bare conductors is directly related to the stable operation of the entire transmission line and even the power system. As an expert in the field of insulation protection, Volsun develops and provides three different types of overhead line insulation protection products.

配图1-silicone rubber overhead line cover.jpg

1. Silicone Rubber Overhead Line Insulation Cover

This insulating protection cover is carefully made of high-quality silicone rubber. It not only has excellent electrical insulation performance and anti-tracking ability, but also has excellent weather resistance and excellent mechanical properties, and can remain stable even in harsh environments. What is more worth mentioning is that it has strong adaptability to high and low temperature environments and can work continuously and reliably in a wide temperature range of -50℃ to +150℃.

We will provide glue with the goods. When installing, first squeeze it evenly into the clip grooves of the insulation cover, and then close the clips by hand to complete the installation. We produce overhead line insulation cover of different voltage levels, and can customize colors according to your specific requirements to meet the diverse needs of engineering identification.

配图2-PE overhead line cover.jpg

2. Overhead Line PE Insulating Protection Cover

It is made of irradiated cross-linked polyolefin material. It also has excellent electrical insulation performance and anti-tracking performance, and its weather resistance and mechanical properties are also very outstanding. It can operate stably in the temperature range of -50℃ to +125℃.

In terms of installation design, it is similar to the silicone rubber overhead line cover and also has a groove. When installing, you can snap the two sides together by simply pressing directly with your hands. Under normal circumstances, low-voltage products below 10kV do not have glue applied in the groove; while high-voltage products above 10kV will be pre-applied with glue in the groove during production. This glue design can provide better sealing effect, thereby improving electrical insulation performance and ensuring reliable protection in high-voltage environments.

配图3-self-locking overhead line cover.jpg

3. Self-locking Overhead Line Insulation Protective Cover

As the name suggests, this protective cover has no snap-on design, and it relies on its unique self-locking structure when installed and used. It is also made of high-quality silicone rubber material, so it also inherits all the advantages of silicone rubber material: excellent electrical performance, anti-tracking ability, excellent weather resistance, etc.

Its main purpose is also to provide insulation protection for cables and wires, and increase their safe distance from surrounding objects. When installing, no clips or additional glue are needed. Just unfold it and put it directly and tightly on the bare wire to achieve insulation protection with its own elasticity and structure.

Although the above three overhead line insulation protection products have their own characteristics in material selection and installation methods, they are all designed to provide efficient and reliable insulation protection. You can consider the specific voltage level, installation environment, budget, personal usage preferences and other factors comprehensively and choose the one that best suits your needs.

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