What Is Disc Insulator - ZHEJIANG SUNJ ELECTICAL CO.,LTD

A Disc Insulator is a critical component used in high-voltage transmission lines to provide insulation between the electrical conductors and the earth. It prevents leakage currents and ensures the safe operation of the power system.

1. Basic Definition:

A Disc Insulator is designed to be used in high-voltage power transmission systems, offering robust insulation and mechanical support for conductors. It is made up of a series of porcelain, glass, or composite materials, and is used to isolate power lines from the transmission towers.

2. Key Parameters:

  • Rated Voltage: Typically used for voltages up to 33kV or higher.

  • Mechanical Strength: Capable of withstanding mechanical loads up to 120kN, ensuring reliability even under harsh conditions.

  • Creepage Distance: Varies from 430mm to 555mm, depending on the environmental conditions, ensuring high pollution withstand voltage.

3. Main Materials:

  • Porcelain: The most commonly used material due to its high dielectric strength and mechanical robustness.

  • Glass: Offers high dielectric strength but can attract moisture, making it less ideal for polluted areas.

  • Composite Materials: Used for enhanced performance in extreme conditions, offering reduced weight and high hydrophobic properties.

Disc Insulator types include suspension and strain insulators, each designed for specific voltage and mechanical requirements.

By using these disc insulators, power transmission systems ensure safe, efficient operation in various environmental conditions, from coastal to desert areas.

FAQ
Do You Provide Customized Services?

Yes, we provide customized services to meet your specific needs. As a professional Electric Power Fittings manufacturer, we offer tailored solutions including custom designs, material selection, sizes, and operational features.

What Is Your R&D Capability?

Our R&D capability is supported by full industry chain management, ensuring control from raw materials to product design and processing. We deliver high-quality Electric Power Fittings Products, and tailored solutions to meet customer needs.

How Is The Quality Of Your Electric Power Fittings?

SUNJ has an ISO9001-certified quality management system and an ISO14001-certified environmental management system! Our products has passed IEC 61238, IEC 61284, NFC 33042 standard certification. Our products deliver consistent performance you can trust.

What Electric Power Fittings Solutions Does Your Company Provide?

SUNJ offers a wide range of solutions, including aerial overhead line fittings, ABC accessories, polymer insulators, lightning Arresters, Drop-out Fuse Cutouts, Disconnect Switch, Auto-iRecloser, SF6 Gas Circuit Breaker. Designed for reliability and performance, our products support power transmission, equipment protection, and grid automation.

Why Choose SUNJ?
Comprehensive Whole-Industry Chain Management
We adhere to a fully traceable industry chain model, managing and monitoring every step from raw materials to final processing. This ensures consistent quality, reliability, and transparency in all our products.
Reliable Power Transmission and Distribution Solutions
At SUNJ, we offer high-performance solutions for power transmission and distribution. Our product range includes Aerial Overhead Line Fittings, ABC Accessories, Polymer Insulators, Lightning Arresters, Fuse Cutouts, Disconnect Switches, Auto-Reclosers, and SF6 Gas Circuit Breakers. Designed for durability and precision, our products ensure efficient power flow, equipment protection, and grid automation.
Strict Quality Control for Superior Electric Power Fittings
At SUNJ, we ensure superior quality management by implementing strict controls across every stage, from material sourcing to final inspection. Strictly following ISO 9001 quality management system and ISO 14001 environmental management system standards, our Electric Power Fittings have unparalleled durability, reliability, and performance.
Trusted Electric Power Fittings Partner
With over 15 years of experience, SUNJ is a global leader in power fittings solutions. Serving 80+ countries with 32+ utility approvals and 800+ successful projects, we ensure ISO 9001 and ISO 14001 certified quality and reliability for every product.
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