The 33kV pin-type polymer insulator is centered around a high-strength epoxy glass fiber core rod, and is coated with a silicone rubber shed that exhibits excellent weather resistance. The 33kV Composite Pin Insulator is engineered for medium-voltage overhead transmission and distribution systems, providing reliable electrical insulation and strong mechanical support under harsh outdoor environments.
Product Detail
The 33kV Composite Pin Insulator is engineered for medium-voltage overhead transmission and distribution systems, providing reliable electrical insulation and strong mechanical support under harsh outdoor environments. Compared with traditional porcelain insulators, polymer composite pin insulators offer superior pollution resistance, lightweight installation, and lower long-term maintenance costs.
For utilities, EPC contractors, and power distribution projects, the key purchasing concerns usually include:
Pollution flashover resistance
Creepage distance performance
Mechanical strength
Service life
UV and weather resistance
Installation efficiency
Maintenance cost reduction
This 33kV polymer pin insulator is specifically designed to address these real-world operating challenges.
Traditional porcelain insulators are heavy, fragile, and require more maintenance in polluted or coastal environments. Modern composite pin insulators use advanced silicone rubber and fiberglass core technology to improve reliability and reduce operational costs.
The HTV silicone rubber housing provides excellent hydrophobicity and hydrophobicity migration, effectively reducing leakage current and pollution flashover risks.
Suitable for:
Coastal regions
High humidity areas
Industrial pollution zones
Desert and dusty environments
Industry discussions on insulation tracking confirm that moisture, salt air, and pollution are major causes of insulation failure in outdoor power systems.
The composite structure is typically:
70–80% lighter than porcelain insulators
Easier to transport and install
Safer during handling
Reduces mechanical load on crossarms and poles
This significantly lowers:
Transportation cost
Installation labor
Tower structural stress
The insulator core uses ECR fiberglass reinforced epoxy rod technology, providing excellent:
Tensile strength
Bending resistance
Load-bearing capacity
It can withstand:
Wind load
Ice load
Conductor tension
Long-term outdoor stress
Typical bending load:
5kN
6kN
8kN
10kN
12kN customized options available
The silicone rubber housing is highly resistant to:
UV radiation
Ozone aging
Acid rain
Temperature fluctuation
Chemical corrosion
Operating temperature:
-40°C to +60°C
This ensures stable long-term electrical performance in harsh climates.
Performance and advantages: It is extremely lightweight (only 1/3 to 1/4 of the same-level porcelain insulators), impact-resistant and not fragile, and convenient and safe for transportation and installation.
The silicone rubber umbrella skirt has excellent water repellency and migration properties, and strong resistance to pollution flashover, making it particularly suitable for high-pollution environments such as coastal areas and industrial zones. It requires no cleaning and maintenance, significantly reducing life cycle costs.
Advantages over porcelain insulator: Over 70% lighter in weight, several times superior in resistance to pollution flashover, impact resistance without brittle fracture (improved safety), maintenance-free, low installation and transportation costs, and superior comprehensive performance and economy.
Core features: high reliability, maintenance-free, lightweight, and strong resistance to contamination.
For an accurate 33kV polymer pin insulator price, please share your drawing or technical specifications.
Provides high mechanical strength and internal insulation stability.
Offers:
Excellent hydrophobic performance
Anti-aging capability
Pollution flashover resistance
Ensures:
Strong mechanical connection
Corrosion resistance
Long service life
Widely used in:
33kV overhead distribution lines
Utility substations
Rural electrification projects
Industrial power networks
Renewable energy transmission systems
Especially suitable for:
High-pollution environments
Coastal power grids
Mountain areas
High humidity regions
We support customized solutions based on project requirements, including:
Creepage distance customization
Mechanical load customization
Shed profile optimization
OEM logo printing
Special packaging
Drawing-based manufacturing
Suitable for:
Utility companies
EPC contractors
Power transmission projects
International distributors
If you are looking for a reliable Composite Pin Insulator 33kV supplier, please share your:
Technical drawing
Required creepage distance
Mechanical load requirement
Quantity demand
Standard requirements
Our engineering team will provide customized solutions and competitive quotations for your power transmission projects.
Product Parameters
| Model | Rated Voltage (kV) | Rated Mechanical Bending Load (kN) | Structure Height (mm) | Minimum Arc Distance (mm) | Minimum Creepage Distance (mm) | Power Frequency 1 min Wet Withstand Voltage (kV) |
| FPQ-33/5 | 33 | 5 | 540 | 290 | 910 | 95 |
FAQ
Q
A
Can we print our trademark or company name on your product or package?
OEM and ODM orders are warmly welcomed, we have rich successful experience in OEM projects. In addition, our R&D team will provide you with professional suggestions.
Q
A
How does your company do in terms of quality control?
1) We choose all raw materials to be of high quality.
2) Professional and skilled workers pay attention to every detail in handling the production process.
3) The quality control department is specialized in quality inspection for each process.
Q
A
How can I get samples to test your quality?
We can provide free samples for you to test and check, just bear the freight cost.
Contact us to know more about our products, our professional team will serve you and customize it according to your requirements.
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