FZSW-35/6 Composite Post Insulator | 35kV High-Voltage

Our high-voltage station post insulators are the foundation for substation safety and reliability. Designed for a wide range of applications from 11kV to 220kV, and specifically for 35kV power systems, they provide both critical electrical insulation and robust mechanical support for essential equipment like circuit breakers, disconnect switches, and busbars.

We offer options in high-strength porcelain and lightweight composite polymer materials, with full compliance to IEC 60273, ANSI C29.9, and various national standards. Our commitment to quality ensures a product built to withstand the harshest environmental and mechanical stresses.

Technical & Mechanical Specifications

Our insulators are engineered to perform in the most demanding conditions, making them ideal for outdoor substations, power plants, and railway traction systems.

• Model: FZSW-35/6

• Rated Voltage: 35kV

• Material Options: Porcelain / Silicone Rubber Composite

• Exceptional Strength: 6kN-rated mechanical cantilever load

• Pollution Resistance: Extended creepage distances to prevent flashover in polluted environments

• Environmental Durability: Flame-retardant, UV-stable, and hydrophobic housing materials

• Global Compliance: Certified to IEC, ANSI, and GB standards

Core Technical Data & Document Downloads

Contact us to request:

• FZSW-35/6 Product Datasheet (PDF) - Includes detailed parameters for all models

• FZSW-35/6 Type Test Report (PDF) - Confirms compliance with IEC 60273

• FZSW-35/6 Dimensional Drawings (CAD/PDF) - For engineering design and integration

Typical Applications & Engineering Case Study

Our station post insulators are widely used in:

• GIS & AIS substations (66–220kV)

• Support columns for circuit breakers and disconnect switches

• Busbar support in power plants

• Insulator posts for railway electrification

📊 In-Depth Case Study: 2023 California Substation Upgrade

In 2023, we supplied over 300 sets of composite polymer station post insulators for a substation upgrade project in California, USA. The project's goal was to replace aging porcelain insulators and enhance grid resilience against coastal salt fog and inland dust storms.

Project Results:

• Significantly improved anti-flashover performance in extreme weather conditions.

• Installation time reduced by 40% compared to porcelain insulators.

• Full compatibility with existing equipment, eliminating the need for extensive retrofitting.

💡 Expert Insight: Selecting the right insulator material is crucial. For instance, in coastal or heavily polluted industrial areas, composite insulators offer superior hydrophobicity and anti-pollution capabilities, which can dramatically reduce maintenance costs and flashover risks.

Installation & FAQ

• Installation Tips: Ensure vertical installation with anti-vibration supports. Match the flange diameter and bolt pattern with the equipment base. Maintain creepage clearance as per IEC or ANSI standards.

• Maintenance: Periodically clean the surface in high-dust zones. Replace it when signs of tracking or surface degradation appear.

❓ Frequently Asked Questions (FAQ)

What's the difference between porcelain and composite insulators?

Porcelain is known for its long lifespan and rigidity, while composite types are lighter and more pollution-resistant.

What are the rated voltage and mechanical load of the FZSW-35/6?

This model has a rated voltage of 35kV and a rated mechanical cantilever load of 6kN.

Can you provide custom-sized insulators?

Yes. We support OEM matching and custom manufacturing to perfectly fit switchgear and busbar systems from brands like Siemens and ABB.

Are these certified to IEC or ANSI standards?

Our products are compliant with major global standards, including IEC 60273, ANSI C29.9, and GB/T1001.1.

📞 Contact Our Engineering Team

Need technical support, FZSW-35/6 CAD drawings, or an insulator selection consultation? We provide expert guidance to substation OEMs, power utilities, and switchgear manufacturers globally.

Thor – Substation Engineering 

SupportPhone: +86-0577-62788197

WhatsApp: +86 159 5777 0984

Email: [email protected]