Premium Porcelain Insulators for Power Systems
High-quality porcelain insulators for electrical power transmission and distribution systems. Post, spool, suspension, and pin insulators for reliable performance in demanding environments.
Porcelain Insulator Types

Post Insulators
- For substations and power transmission lines
- Excellent mechanical strength and insulation
- Available in various voltage ratings
- Weather and pollution resistant

Spool Insulators
- For low voltage distribution lines
- Compact design with high strength
- Easy installation and maintenance
- Cost-effective solution

Suspension Insulators
- For overhead transmission lines
- Can be connected in strings for higher voltages
- Excellent mechanical and electrical properties
- Long service life

Pin Insulators
- For distribution lines up to 33kV
- Simple and economical design
- Easy to install and replace
- Available in various sizes

Porcelain Bushings
- For transformers, capacitors and switchgear
- Available in DIN, ANSI, IEC standards
- High electrical and mechanical strength
- Custom designs available
International Standards Compliance
Our porcelain insulators comply with major international standards ensuring reliability and compatibility worldwide.
IEC 60383
Insulators for overhead lines
ANSI C29
American standards
DIN 48110
German standards
BS 137
British standards
AS 1137
Australian standards
High Voltage Porcelain Insulators for Power Transmission and Distribution
Porcelain insulators are essential components in electrical power systems, providing insulation and mechanical support for conductors. At Changsha Rich Power, we manufacture a complete range of porcelain insulators including post insulators, spool insulators, suspension insulators, pin insulators, and porcelain bushings. Our insulators are used in transmission lines, distribution networks, substations, and electrical equipment.
Applications of Porcelain Insulators
Our porcelain insulators are suitable for various applications:
- Transmission Lines: Suspension and strain insulators for high voltage overhead lines
- Distribution Networks: Pin and post insulators for medium voltage distribution
- Substations: Post insulators for busbars and equipment support
- Electrical Equipment: Bushings for transformers, switchgear, and capacitors
- Railway Electrification: Special insulators for railway power systems
Why Choose Our Porcelain Insulators?
Our porcelain insulators offer excellent electrical insulation properties, high mechanical strength, and long service life even in harsh environmental conditions. We use high-quality electrical porcelain with optimal alumina content for superior performance. With over 30 years of experience, we understand the requirements of power utilities worldwide and can provide customized solutions for specific applications.
