Disconnector Used Composite Post Insulator

• Customization: Available
• Application: High-voltage
• Material: Composite Polymer
• Model NO.: FZSW-72.5kV/9kN
• Structure: Post Insulator
• Type: Substation Type
• Usage: High Voltage Power Transmission, Distribution
• Connection Method: to Crimp with Fiberglass Rod and Vulcanized Rubber
• Size of Bearing Capacity: 9kn
• Certification: ISO9001, Type Test Report
• Color: Grey
• Brand: Wishpower
• Delivery Terms: Fob, CIF, CFR
• Transport Package: Create and Pallet
• Specification: Composition
• Trademark: Wishpower
• Origin: Xi′an, China
• HS Code: 8546900000
• Production Capacity: 1200000

Product Description

Product Description

 

Composite post insulators used for disconnectors are key components in medium and high-voltage power systems. They provide both mechanical support and electrical insulation for switchgear such as isolators and disconnect switches. Manufactured using ECR fiberglass core rods, silicone rubber sheds, and galvanized steel end fittings, these insulators offer excellent weather resistance, lightweight design, and high mechanical strength.

WishPower offers a wide range of composite post insulators that comply with IEC 61952 standards, suitable for voltage ratings from 10kV to 110kV, supporting both standard and custom switchgear applications.

Technical Specifications

Item	Specification
Product Name	Composite Post Insulator for Disconnector
Voltage Rating	10kV / 24kV / 35kV / 66kV / 110kV
Mechanical Bending Load	4kN / 6kN / 8kN / 10kN (customizable)
Power Frequency Withstand	40kV - 160kV
Lightning Impulse Withstand	75kV - 250kV
Shed Material	High-grade silicone rubber
Core Rod Material	ECR epoxy fiberglass
End Fittings	Galvanized steel (flange/ball/socket/bolt)
Standard Compliance	IEC 61952 / GB/T 19519

 

Key Features

• Compact Design & High Self-Cleaning: Ideal for polluted environments

• UV and Weather Resistant: Durable in harsh climate zones

• High Mechanical Stability: Strong core for switchgear support

• Flexible End Fittings: Compatible with various disconnector types

• Superior Electrical Insulation: Tested for lightning and power frequency

Quality Testing

All WishPower insulators undergo rigorous type and routine tests:

• Power frequency wet withstand test

• Lightning impulse voltage test

• Mechanical bending load test

• Thermal aging and seal test

• Surface leakage current analysis

• Explosion resistance test

Conforming to IEC 61952 and GB/T 19519.

Application Fields

• Overhead line disconnector supports

• High-voltage switchgear insulation

• Medium voltage ring main unit support

• Wind & solar power station disconnector terminals

• Industrial substation isolator equipment

Customization Services

WishPower provides full customization options:

• Creepage distance and height

• Mechanical load rating

• End fittings and mounting design

• Private labeling, branding, packaging

• Special applications: high altitude, extreme pollution

Manufacturer Overview

WishPower is a global supplier of high-performance electrical insulation and protection devices, specializing in composite insulators, surge arresters, fuse cutouts, and distribution transformers. With advanced production lines and international certifications, we deliver solutions for global energy infrastructure projects.

WishPower is a global manufacturer of power system equipment. If you have any purchasing needs, feel free to contact us for the latest product quotation or leave us a message.