Product Description
Composite post insulators are widely used in substations and distribution networks, suitable for both new substation projects and the upgrading or retrofitting of existing power grids.
Composite post insulators consist of a fiberglass-reinforced plastic (FRP) core rod and a high-temperature vulcanized (HTV) silicone rubber housing. The FRP core provides mechanical strength, while the silicone rubber housing protects the core from moisture ingress and other environmental factors. The creepage distance can be selected or customized based on system voltage and the environmental conditions of the installation site to meet the specific insulation requirements of substations and power infrastructure projects.
Compared to traditional porcelain insulators, composite insulators are lighter in weight and easier to transport and install; they also offer reduced risk of damage from outdoor environmental corrosion or accidental impact.


Composite post insulators are suitable for harsh outdoor environments - such as areas with heavy pollution, high humidity, or variable weather - as they inhibit the accumulation of surface contaminants and ensure reliable equipment operation. However, actual performance depends on factors such as insulator design, pollution levels, installation quality, and maintenance practices.
Note: The manufacture of composite post insulators complies with relevant IEC standards and applicable national requirements. When selecting a product, engineers should comprehensively consider rated voltage, mechanical load, installation dimensions, creepage distance, and applicable insulation standards. Proper selection and installation help ensure the equipment maintains mechanical stability and electrical insulation performance throughout its service life.
Product Specifications

|
Item NO |
FXBW |
Place of origin |
China |
|
Performance |
Insulate |
Material |
Metal / Silicon rubber |
|
Quality |
100% test |
Size |
All |
|
Supply mode |
Factory direct supply |
MOQ |
10pcs |
|
Supply ability |
10000pcs |
Delivery time |
20 days |
|
Certification |
CE ISO Test Report |
Packing |
Carton box |
|
Model |
Rated voltage |
Rated mechanical load (kN) |
Structure Height H (mm) |
Insulating distance Li (mm) |
Min creepage distance (mm) |
Lightning impulse withstand voltage (peak) (kV) |
P.F wet withstand voltage (peak) (kV) |
|
FZSW4-10/4 |
10 |
4 |
215 |
125 |
290 |
75 |
42 |
|
FZSW4-24/8 |
24 |
8 |
300 |
220 |
750 |
150 |
65 |
|
FZSW4-35/6 |
35 |
6 |
450 |
360 |
946 |
185 |
95 |
|
FZSW4-66/6 |
66 |
6 |
760 |
630 |
1886 |
410 |
185 |
|
FZSW4-66/8 |
66 |
8 |
760 |
630 |
2010 |
410 |
185 |
|
FZSW4-110/10 |
110 |
10 |
1220 |
1080 |
3530 |
500 |
230 |
|
FZSW4-220/10 |
220 |
10 |
2440 |
2200 |
7060 |
1000 |
395 |
Sample Rroom

Product Features
Lightweight and High-Strength
The fiberglass core rod offers exceptional impact strength; being significantly lighter than traditional porcelain insulators, it facilitates easy transportation and on-site installation.
UV and Extreme Weather Resistance
Electrical performance remains stable even after prolonged outdoor exposure or exposure to drastic temperature fluctuations, making it suitable for diverse operating environments such as deserts, coastal areas, and high-altitude regions.
Safe and Explosion-Proof
Unlike porcelain insulators, this product does not shatter or produce flying debris during a severe failure, thereby ensuring the safety of personnel and surrounding equipment.
Fully Customizable Specifications
Creepage distance, mechanical load ratings, and the material and dimensions of all flanges can be customized to meet specific project requirements.
Our Advantage
Superior Pollution Flashover Resistance
Features High-Temperature Vulcanized (HTV) silicone rubber sheds with durable hydrophobicity, effectively preventing pollution flashover; suitable for heavily polluted environments, such as coastal areas and regions with chemical dust.
High Mechanical Strength and Crack Resistance
Utilizes a high-strength epoxy fiberglass core rod; significantly lighter than porcelain insulators, offering excellent bending and seismic resistance with no risk of cracking or shattering.ck, unfinished wood or rough concrete walls;.
Comprehensive Factory Testing and Reliable Quality
All products undergo rigorous, item-by-item testing before leaving the factory; compliant with IEC international standards and holding CE and ISO certifications, ensuring stable electrical performance during long-term outdoor operation.
Extensive Specifications and Customization Support
Covers a full range of specifications from 10kV to 220kV; structural height, creepage distance, and metal fitting configurations can be customized to meet specific project requirements.
Factory-Direct Supply and Reliable Delivery
Manufactured directly by Jiasike with a monthly production capacity of up to 10,000 units; standard delivery time is 20 days, with a minimum order quantity (MOQ) of just 10 units.
Maintenance-Free and Weather-Resistant
Resistant to UV aging and chemical corrosion; requires no frequent maintenance after installation and operates reliably in both high-temperature and extremely low-temperature environments.
FAQ
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