66kV Long Rod Suspension Composite Insulator

产品详情

The 66kV long rod suspension composite insulator is designed to support conductors and provide reliable electrical insulation on high-voltage overhead power lines. Wishpower manufactures this product with a high-strength fiberglass-reinforced epoxy core, silicone rubber housing and corrosion-resistant metal end fittings. Its lightweight construction, mechanical strength, hydrophobic surface and pollution performance make it suitable for conventional transmission networks, coastal regions, polluted environments and renewable energy transmission projects.

Product Overview

The Wishpower 66kV long rod suspension composite insulator is installed between an overhead conductor and a transmission tower. It carries vertical conductor loads, wind-induced loads and specified mechanical tension while electrically isolating the energized conductor from the grounded structure.

Compared with conventional porcelain or glass insulator arrangements, the product offers the following advantages:

• High-strength fiberglass core for reliable tensile load performance;

• Silicone rubber housing with excellent hydrophobic properties;

• Lightweight construction for easier transportation and installation;

• Integrated long rod design with fewer intermediate connections;

• Customizable creepage distance for different pollution levels;

• Multiple end-fitting configurations for different line hardware;

• Suitable for new transmission lines and insulation replacement projects.

IEC 61109:2025 covers composite suspension and tension insulators for overhead lines constructed with a fiber-reinforced resin core, polymeric housing and permanently attached metal end fittings. IEC 62217:2025 establishes general definitions, test methods and acceptance criteria for high-voltage polymeric insulators.

Core Features

1. Reliable Electrical Insulation
   The silicone rubber housing and fiberglass core form a complete insulation system suitable for 66kV overhead power applications.

2. Excellent Pollution Performance
   The hydrophobic silicone rubber surface helps reduce continuous water-film formation under moisture, salt fog, dust and industrial pollution conditions.

3. High Mechanical Strength
   The fiberglass-reinforced epoxy core carries the main mechanical load and can be designed for different specified mechanical load ratings.

4. Lightweight Construction
   The composite structure is lighter than comparable porcelain insulation arrangements, reducing transportation and tower installation requirements.

5. Weather and Corrosion Resistance
   The housing is designed for outdoor exposure to ultraviolet radiation, rainfall and temperature changes, while galvanized metal fittings provide corrosion protection.

6. Compact Long Rod Design
   The integrated structure reduces the number of intermediate components and simplifies the suspension insulation arrangement.

7. Custom Engineering Options
   Creepage distance, section length, mechanical rating, shed profile and end fittings can be selected according to project requirements.

Product Structure

The 66kV long rod suspension composite insulator normally consists of the following components:

1. Fiberglass Core Rod
   The glass fiber-reinforced epoxy resin core provides mechanical strength and internal electrical insulation.

2. Silicone Rubber Sheds
   The sheds form the external insulation profile and provide the required creepage path.

3. Silicone Rubber Housing
   The housing protects the core rod against moisture, pollution, ultraviolet exposure and environmental aging.

4. Metal End Fittings
   End fittings connect the insulator to the tower and conductor hardware. Ball, socket, clevis, eye and other configurations are available.

5. End-Sealing System
   The interface between the core rod, housing and metal fittings is sealed to reduce the risk of moisture penetration.

6. Grading Hardware
   A grading or corona ring may be installed when required by the electric-field distribution and insulation coordination design.