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As a specialized manufacturer, Jinhua Dika Electrical Equipment Co., Ltd. is committed to delivering reliable and high-performance electrical insulation solutions. Our 10kV and 20kV Anti-pollution Post Insulators are engineered to ensure the safe and stable operation of substations and transmission lines in challenging environmental conditions. With over a decade of experience and a strong presence in global markets from North America to Southeast Asia, we understand the critical need for durable components that minimize maintenance and maximize system uptime.
These post insulators are designed to withstand heavy pollution, salt fog, and industrial contaminants, preventing flashovers and ensuring consistent electrical isolation. By choosing our products, you invest in enhanced grid reliability and reduced lifecycle costs for your power infrastructure projects.
Key Features & Technical Advantages:
- Superior Anti-pollution Design: Features an optimized shed profile and extended creepage distance to effectively trap and disperse contaminants, significantly improving performance in polluted and coastal areas.
- Robust Construction: Manufactured using high-grade porcelain or advanced composite silicone rubber, offering excellent mechanical strength, weather resistance, and long-term stability under UV exposure and thermal cycling.
- High Mechanical Load Capacity: Designed to support significant cantilever loads from busbars and conductors, with mechanical strength ratings customizable to meet specific project requirements (e.g., 8kN, 12kN, 16kN).
- Easy Installation and Maintenance: Equipped with standardized metal fittings (galvanized or hot-dip galvanized) for secure and straightforward mounting. The smooth surface hinders pollutant accumulation, simplifying cleaning routines.
- Wide Application Range: Ideal for various installations including substation bus supports, disconnect switch supports, transformer connections, and as line posts on transmission and distribution lines.
Typical Technical Specifications:
| Parameter | 10kV Model | 20kV Model |
| Rated Voltage | 10 kV | 20 kV |
| Rated Frequency | 50/60 Hz | 50/60 Hz |
| Dry Lightning Impulse Withstand Voltage | ≥ 75 kV | ≥ 125 kV |
| Wet Power Frequency Withstand Voltage (1 min) | ≥ 30 kV | ≥ 50 kV |
| Minimum Creepage Distance (for Pollution Class III) | ≥ 315 mm | ≥ 630 mm |
| Mechanical Failing Load (Typical) | 8 kN - 12 kN (Customizable) | 12 kN - 16 kN (Customizable) |
Benefits for Your Project:
- Enhanced Safety: Reduces the risk of flashovers and outages, protecting personnel and equipment.
- Reduced Operational Costs: Lower maintenance frequency and cleaning requirements translate to cost savings.
- Extended Service Life: High-quality materials and design ensure longevity, even in harsh environments.
- Grid Stability: Contributes to a more reliable and resilient power transmission and distribution network.
- Customization: We can tailor creepage distance, mechanical strength, and mounting fittings to suit your specific site conditions and standards.
Backed by ISO9001 certification, our manufacturing processes ensure consistent quality and performance. With an annual export value ranging between US$1 Million and US$1.5 Million and a team of 11-50 dedicated professionals, Jinhua Dika has established trust with clients across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Mid East, and Eastern Asia. Our products are shipped from major ports like Shanghai, Tianjin, Guangzhou, and Ningbo, ensuring efficient logistics. Choose our anti-pollution post insulators for a proven solution that combines technical excellence with dependable supply chain support.
Frequently Asked Questions (FAQ)
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What is the main advantage of an "anti-pollution" design for an insulator?
Anti-pollution insulators feature an extended and specially shaped creepage path. This design makes it harder for conductive pollutants (like salt, dust, or industrial deposits) to form a continuous path along the surface, thereby preventing leakage current and flashovers, which is critical for reliability in contaminated areas. -
What materials are your post insulators made from, and how do I choose?
We offer both high-strength porcelain and composite silicone rubber options. Porcelain is known for its long-term stability and high mechanical strength. Composite insulators are lighter, offer excellent hydrophobicity (water repellency), and are highly resistant to vandalism. The choice depends on your specific weight, pollution, and mechanical load requirements. -
How do I determine the required creepage distance for my project?
The required creepage distance depends on the local pollution level (classified as I to IV per IEC standards). We recommend consulting your local grid codes or providing us with your site's pollution class. We can then advise on and supply insulators with the appropriate creepage to ensure safe operation. -
Are the metal fittings included, and what are they made of?
Yes, standard top and bottom metal fittings are included. They are typically made from malleable cast iron or hot-dip galvanized steel for corrosion resistance. Specific fitting types (ball, socket, clevis) can be customized based on your hardware compatibility. -
Can you provide insulators for voltages other than 10kV and 20kV?
Yes, as a manufacturer, we have the capability to design and produce post insulators for a wider range of voltage levels, such as 35kV or 66kV. Please contact us with your specific voltage and mechanical requirements for a customized solution. -
What is the typical lead time for an order?
Lead times vary based on order quantity and customization. For standard 10kV/20kV models, typical production lead time is 4-6 weeks. We ship from major Chinese ports (Shanghai, Tianjin, Guangzhou, Ningbo) to ensure timely delivery worldwide. -
Do your products comply with international standards?
Our insulators are designed and tested in accordance with relevant international standards such as IEC 60383 and ANSI C29 series. Specific test reports can be provided upon request. -
What kind of quality control do you implement?
Our ISO9001-certified quality management system governs the entire production process. This includes raw material inspection, in-process checks, and final routine tests (including mechanical load tests and electrical withstand tests) on a sampling basis to ensure every batch meets our stringent specifications.
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