Suzhou Volsun Electronics Technology Co., Ltd.
You are here: Home » News » Knowledges » Why Silicone Rubber Overhead Line Covers Are the Ultimate Game-Changer for Grid Reliability

Why Silicone Rubber Overhead Line Covers Are the Ultimate Game-Changer for Grid Reliability

Views: 0     Author: Site Editor     Publish Time: 2026-01-23      Origin: Site

Inquire

facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button

In the world of power distribution, unexpected outages are more than just an inconvenience—they are a costly liability. Whether it's a curious squirrel causing a flashover or a storm-blown branch touching a bare conductor, the vulnerability of overhead lines is a constant challenge for utility managers.


At Volsun, we have spent over 20 years perfecting insulation, sealing, and protection solutions. Our flagship Silicone Rubber Overhead Line Cover (often called the snap-in line cover) is designed to turn these vulnerabilities into a thing of the past.


overhead line cover


What is a Silicone Rubber Overhead Line Cover?


It is a flexible, high-performance insulation sleeve designed to wrap around bare overhead conductors. Unlike traditional methods that require costly conductor replacements, our silicone covers provide a "wrap-and-seal" solution that enhances safety and reliability without the need for complex hardware.


Why Professionals Choose Volsun's Silicone Rubber Overhead Line Cover Solution


Our covers aren't just "plastic tubes." They are engineered from premium-grade silicone rubber, offering several critical advantages:

  • Extreme Weather Resilience: From the scorching heat of +150°C to the bone-chilling cold of -50°C, our covers remain flexible. They won't crack under UV exposure or degrade due to ozone, making them ideal for high-altitude and harsh environments.

  • Superior Dielectric Strength: With an electrical strength of ≥20kV/mm, these covers significantly increase the creepage distance and safety clearance between conductors and surrounding objects (like trees or buildings).

  • The "Snap-and-Go" Advantage: Time is money during grid maintenance. Our self-locking design allows for tool-free installation. You simply buckle the parts together.

  • Wildlife & Fire Protection: We offer a flame-retardant V-0 rating. This not only prevents fire spread but also acts as a "bird guard," preventing short circuits caused by wildlife contact.


Real-World Success: The Railway Catenary Case


One of our recent partners, a major railway system operator, faced frequent short-circuit issues due to birds nesting near the overhead lines. The unplanned service interruptions were causing massive delays.

They implemented Volsun's RUBNS-OLC Silicone Covers across their most vulnerable sections. The result? A 90% reduction in wildlife-related outages within the first six months. The flexibility of our silicone material allowed it to conform to irregular fittings and curved sections where traditional rigid covers failed.


Don't wait for the next animal-related fault to expose the gaps in your grid protection. Volsun's Silicone Rubber Overhead Line Covers offer a cost-effective, long-lasting, and incredibly simple way to harden your infrastructure.

Contact the experts at Volsun today to find the perfect fit for your overhead line protection needs.



Subscribe To Our Newsletter

China's pioneer manufacturer of cold shrink tube,fiberglass sleeve, heat shrink tube,identification sleeve---Volsun

QUICK LINKS

PRODUCTS

CONTACT INFO

  +86-13776247502
  +86-512-66386808
  No.402, Mudong Road, Mudu Town, Wuzhong District, Suzhou City,215101, Jiangsu Province, China
Leave a Message
Contact Us
Copyright ©️ 2023 Volsun Group. Technology by leadong.com. Sitemap.