Spool Type Porcelain Insulators

Spool Type Porcelain Insulators

Our Spool Type Porcelain Insulators are high-performance ceramic insulation components designed for overhead power distribution and transmission lines. They feature a spool (or bobbin) shape with a central through-hole, making them ideal for supporting and insulating conductors while allowing wire passing or jumper connections. With excellent mechanical strength and insulation performance, they ensure safe and reliable power delivery in various electrical networks.

Description

Our Spool Type Porcelain Insulators are high-performance ceramic insulation components designed for overhead power distribution and transmission lines. They feature a spool (or bobbin) shape with a central through-hole, making them ideal for supporting and insulating conductors while allowing wire passing or jumper connections. With excellent mechanical strength and insulation performance, they ensure safe and reliable power delivery in various electrical networks.

Key Features

  • Special Spool Structure: Designed with a through-hole for easy conductor threading, jumper wiring, and flexible installation in line sections, terminal towers, and branch lines.
  • High Mechanical Strength: Sturdy porcelain construction provides strong resistance to bending, tensile, and impact loads, ensuring stable support under wind, ice, and external forces.
  • Superior Insulation Performance: High dielectric strength and low leakage current effectively prevent flashover and electric shock, even in wet and polluted environments.
  • Weather & Corrosion Resistance: Porcelain material resists UV radiation, moisture, temperature changes, and atmospheric corrosion, ensuring long-term stability in outdoor conditions.
  • Low Electrical Loss: Stable insulation characteristics under various operating voltages minimize energy loss and ensure efficient power transmission.
  • Proven Reliability & Long Life: Time-tested design and manufacturing ensure consistent quality and a service life of over 30 years.
  • Easy Installation & Maintenance: Standard dimensions and simple structure allow quick installation and low maintenance costs.

Applications

Application Scenario Applicable Voltage (AC)
Overhead Distribution Lines 10kV, 35kV
Overhead Line Terminal & Angle Towers 10kV–35kV
Line Branch & Jumper Connections 10kV–35kV
Railway Electrification Systems 27.5kV
Rural & Urban Power Networks 10kV

Technical Advantages

  • Compliant with international standards (IEC 60120, GB/T 1001.1)
  • High insulation resistance and dielectric strength
  • Long service life (30+ years)
  • Environmentally friendly and recyclable materials
  • Cost-effective and high cost-performance ratio
Our Spool Type Porcelain Insulators combine a unique structural design, reliable mechanical performance, and excellent electrical insulation, making them an essential component for overhead power systems worldwide.

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High Quality

Stable performance, durable structure, ensuring safe operation for power transmission and distribution.

Fast Delivery

Timely dispatch to meet your urgent orders and project schedules efficiently and professionally at any time

Best Warranty

Best Warranty: Reliable after-sales support for long-term product stability and customer satisfaction.