27.5kV Bow-Type Cantilever Support Composite Insulator

产品详情

The 27.5kV bow-type cantilever support composite insulator is an important insulation component used in railway traction power supply and overhead contact systems. It is commonly installed in cantilever support structures, positioning devices and railway OCS assemblies where both electrical insulation and mechanical strength are required.

Wishpower composite insulators offer the following advantages:

1. High-temperature vulcanized silicone rubber housing with excellent hydrophobicity.

2. High-strength fiberglass core rod for stable mechanical support.

3. Lightweight design for easier transportation, installation and maintenance.

4. Optimized shed profile to improve creepage distance and reduce pollution flashover risk.

5. Suitable for 27.5kV electrified railway traction power supply and overhead contact line systems.

 Core Features

1. Reliable Electrical Insulation
   The product is designed for 27.5kV railway systems and helps isolate energized components from support structures.

2. Excellent Pollution Flashover Resistance
   The silicone rubber housing provides strong hydrophobic performance, making the insulator suitable for dusty, humid, coastal or polluted environments.

3. Stable Mechanical Support
   The fiberglass core rod provides bending strength, tensile strength and fatigue resistance for cantilever support applications.

4. Lightweight Composite Design
   Compared with traditional porcelain insulators, composite insulators are lighter and easier to install in railway construction projects.

5. Weather and Aging Resistance
   The outer silicone rubber layer offers resistance to UV radiation, ozone, temperature variation and outdoor aging.

6. Low Maintenance Requirement
   The hydrophobic surface helps reduce contamination accumulation and supports lower maintenance costs during long-term operation.

Product Structure

The 27.5kV bow-type cantilever support composite insulator is generally composed of the following parts:

1. Fiberglass Core Rod
   The core rod works as the main mechanical load-bearing component and provides bending and tensile strength.

2. Silicone Rubber Housing
   The outer insulation layer protects the core and improves weather resistance, pollution resistance and dielectric performance.

3. Composite Shed Profile
   The shed design increases creepage distance and improves performance under rain, fog and polluted conditions.

4. Metal End Fittings
   Hot-dip galvanized steel fittings or customized metal fittings are used for connection with railway cantilever structures.

5. End Sealing Area
   The sealing design helps prevent moisture ingress and improves long-term reliability.