27.5kV Rod Composite Cantilever Insulator for Railway Catenary Systems

Product Overview

The 27.5kV rod composite cantilever insulator is an important insulating and supporting component used in electrified railway catenary systems. It provides reliable electrical insulation between live conductors and cantilever support structures while maintaining mechanical stability under outdoor operating conditions. Wishpower composite insulators are manufactured with a high-strength fiberglass core rod, silicone rubber housing and durable metal end fittings, making them suitable for railway power supply systems, overhead contact lines and long-term traction network applications.

Wishpower 27.5kV rod composite cantilever insulator is designed for railway catenary and cantilever support systems. It combines excellent insulation performance with strong mechanical strength, helping railway operators improve system reliability, reduce maintenance workload and enhance outdoor operating safety.

Main advantages of Wishpower composite insulators include:

• Reliable electrical insulation for 27.5kV railway traction power systems.

• Silicone rubber housing with excellent hydrophobicity and pollution flashover resistance.

• High-strength fiberglass core rod for tensile, bending and mechanical load performance.

• Weather-resistant design for UV exposure, rain, snow, salt fog, dust and temperature variation.

• Lightweight structure for easier transportation, installation and maintenance.

• Customizable design for creepage distance, end fitting type, structural height and mechanical rating.

Core Features

1. Designed for 27.5kV Railway Systems
   The insulator is suitable for electrified railway catenary systems and traction power supply networks requiring stable insulation and mechanical support.

2. Rod-Type Structure with High Mechanical Strength
   The rod composite design provides excellent overall strength and can withstand vibration, wind load, mechanical impact and operational stress.

3. Excellent Pollution Flashover Resistance
   The silicone rubber housing offers strong hydrophobicity, making the product suitable for polluted, humid, coastal and rainy environments.

4. Lightweight and Easy to Install
   Compared with porcelain insulators, composite insulators are lighter and easier to handle, helping reduce installation difficulty and labor cost.

5. Strong Aging Resistance
   The product provides good resistance to UV radiation, tracking, erosion and weather aging, supporting long-term outdoor operation.

6. Lower Maintenance Cost
   Composite materials are less fragile than porcelain, reducing damage during transportation, installation and operation.

Product Structure

The 27.5kV rod composite cantilever insulator generally consists of the following components:

• Fiberglass Core Rod
  The main mechanical load-bearing component, providing tensile strength, bending strength and structural stability.

• Silicone Rubber Housing
  The external insulation layer, providing creepage distance, pollution resistance and weather protection.

• Metal End Fittings
  Usually made of hot-dip galvanized steel or stainless steel, used for connection with cantilever arms, support brackets or railway structures.

• Sealing System
  Reliable sealing at the interface between the housing and metal fittings helps prevent moisture ingress.

• Integrated Composite Design
  The core rod, housing and fittings are closely combined to improve operational stability and long-term reliability.