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ED-2
Our ED-2 series 24kV ceramic spool insulators are high-performance porcelain insulators designed specifically for overhead transmission and distribution lines. Manufactured to strict BS standards, these insulators deliver exceptional electrical insulation and mechanical strength, making them the preferred choice for utility companies, electrical contractors and infrastructure project developers worldwide. With a smooth glaze finish and high-alumina porcelain construction, our spool insulators provide reliable performance even in challenging environmental conditions.
Crafted from premium porcelain with a dielectric strength of 4-10 kV/mm, our 24kV ceramic spool insulators ensure consistent electrical isolation between conductors and supporting structures. The ED-2(C) model features a minimum dry flashover voltage of 25kV and wet flashover voltage of 25kV, providing an extra safety margin for 24kV power systems. All insulators undergo rigorous high-voltage testing to guarantee no breakdown or surface flashover under operating voltage, lightning overvoltage and internal overvoltage conditions.
Engineered to withstand extreme mechanical stresses, our ED-2 series insulators offer impressive mechanical failing loads ranging from 9kN to 13kN depending on the model. This robust construction provides reliable support for overhead conductors even under heavy wind, ice accumulation and temperature fluctuations. The high-alumina porcelain composition delivers significantly higher tensile and compressive strength compared to standard ceramic materials, reducing the risk of breakage during installation and operation.
The smooth, vitreous glaze surface effectively sheds water, dust and atmospheric contaminants, preventing pollution flashover and extending service life. This self-cleaning property makes our insulators particularly suitable for use in coastal areas, industrial zones and regions with high levels of airborne particulate matter. The glaze also provides excellent resistance to UV radiation, acid rain and temperature extremes, ensuring stable performance over decades of outdoor operation.
All our ED-2 series ceramic spool insulators are fully interchangeable with other BS standard shackle insulators. This compatibility simplifies inventory management, reduces replacement costs and allows for seamless integration into existing power systems. The standardized dimensions ensure perfect fit with common line hardware, minimizing installation time and labor expenses.
Model | H (mm) | D (mm) | d (mm) | d1 (mm) | R (mm) | Mechanical Failing Load (kN) | Dry Flashover Voltage (kV) | Wet Flashover Voltage (kV) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
ED-2(C) | 80 | 80 | 50 | 22 | 6 | 13 | 25 | 25 | 0.50 |
ED-2(B) | 76 | 89 | 48 | 21 | 10 | 12 | 25 | 12 | 0.50 |
ED-2(B)1 | 76 | 89 | 48 | 17.5 | 10 | 12 | 25 | 12 | 0.50 |
1617 | 65 | 76 | 46 | 17.6 | 9 | 9 | 20 | 9 | 0.4 |
1618-1 | 75 | 89 | 55 | 17 | 12.5 | 10 | 20 | 9 | - |
1618-2 | 75 | 89 | 55 | 17 | 12.5 | 13 | 25 | 12 | - |
All technical data is based on third-party laboratory testing conducted in accordance with IEC 60383 and BS 1371 standards.
Our 24kV porcelain spool insulators are suitable for a diverse range of electrical infrastructure projects:
24kV overhead transmission and distribution lines
Substation busbar support and connection points
Railway electrification systems
Industrial power distribution networks
Rural electrification initiatives
Renewable energy power plant interconnections
Coastal and moderately polluted industrial areas
We use only high-grade alumina-rich porcelain in our manufacturing process, which offers superior mechanical strength and electrical performance compared to conventional ceramic materials. The raw materials are carefully selected and processed to ensure consistent quality across every batch.
Each insulator undergoes comprehensive electrical and mechanical testing before shipment, including high-voltage flashover tests, mechanical load tests and visual inspections. Our manufacturing facilities are ISO 9001 certified, ensuring strict adherence to international quality standards throughout the production process.
We maintain a large inventory of standard ED-2 series insulators to support immediate shipment requirements. Our established logistics network enables reliable delivery to over 50 countries worldwide, with most orders dispatched within 3-5 business days of confirmation.
As a direct manufacturer, we offer competitive pricing with attractive volume discounts for large project orders. Our streamlined production process and efficient supply chain management allow us to pass cost savings directly to our commercial clients without compromising on quality.
Our team of experienced electrical engineers provides professional product selection guidance, technical documentation and installation advice. We work closely with project managers and contractors to ensure the right insulator solution is specified for each application.
ED-2(C) has a higher mechanical failing load (13kN vs 12kN) and significantly higher wet flashover voltage (25kV vs 12kV), making it suitable for more demanding applications such as areas with heavy rainfall or higher mechanical stress requirements.
Yes, our standard ED-2 series insulators perform well in moderately polluted environments with regular maintenance. For heavily industrialized or coastal areas with high salt contamination, we recommend our custom-designed insulators with increased creepage distance for enhanced pollution flashover resistance.
Our standard MOQ is 100 pieces for most models. However, we can accommodate smaller trial orders for new clients to evaluate product quality and performance before placing larger volume commitments.
Yes, we have in-house design and manufacturing capabilities to produce custom ceramic insulators according to your specific requirements and technical drawings. Our engineering team will work with you to develop a solution that meets your exact project specifications.
Ready to source high-quality 24kV ceramic spool insulators for your next electrical infrastructure project? Contact us today for a free, no-obligation quote. Our dedicated sales team will respond within 24 hours with detailed pricing, delivery timelines and technical documentation.
