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As a professional manufacturer of electrical equipment, Jinhua Dika Electrical Equipment Co., Ltd. is proud to introduce the U70BS 210 Glass Insulator, a critical component engineered for reliability in substation lightning arrester and grounding applications. Operating under an ISO9001-certified quality management system, we deliver products that meet the stringent demands of global power infrastructure. Our insulator is designed to provide superior electrical insulation and mechanical strength, ensuring the safety and longevity of your substation equipment. With extensive export experience across diverse markets including North America, Southeast Asia, and Europe, we understand the specific requirements for different climatic and operational conditions. This product represents our commitment to combining robust material science with practical engineering solutions for the power transmission and distribution industry.
The U70BS 210 insulator is manufactured from high-quality tempered glass, chosen for its excellent dielectric properties, high mechanical strength, and resistance to environmental degradation. Its primary function is to electrically isolate the live parts of a lightning arrester or grounding system from the supporting structure, preventing flashovers and ensuring safe operation. The design incorporates a specific creepage distance to withstand pollution and wet conditions common in outdoor substations. The brown color is not merely aesthetic; it aids in visual inspection for cracks or damage. The standard mounting flange allows for straightforward installation and compatibility with common arrester and grounding hardware.
Key Technical Features & Advantages:
- High Mechanical Strength: Rated for a cantilever strength of 210 kN, providing exceptional resistance to wind, ice, and mechanical loads.
- Superior Dielectric Performance: Tempered glass offers high insulation resistance and impulse withstand voltage, crucial for lightning impulse conditions.
- Weather & Pollution Resistance: The smooth, non-porous surface of glass sheds water effectively and prevents the accumulation of conductive contaminants.
- Zero Maintenance: Unlike composite or porcelain, glass does not require periodic washing or hydrophobic coating renewal. Its performance remains stable over decades.
- Fail-Safe Design: In the rare event of mechanical failure, tempered glass shatters completely, making damage immediately visible for easy identification and replacement.
- Long Service Life: Glass is inert and does not age or degrade under UV exposure, ensuring a long, predictable service life exceeding 30 years.
Detailed Technical Specifications:
| Parameter | Specification / Value |
| Model Designation | U70BS 210 |
| Rated Mechanical Strength (ML) | 210 kN |
| Specified Creepage Distance* | Available upon request (Customizable for specific pollution levels) |
| Lightning Impulse Withstand Voltage (U50) | Customizable based on system voltage |
| Power Frequency Wet Withstand Voltage (1 min) | Customizable based on system voltage |
| Height (Approx.) | Subject to design, available upon request |
| Mounting Flange Standard | Standard design, compatible with common hardware |
*Creepage distance is a critical design parameter adjusted according to the site pollution severity class (IEC 60815).
Benefits for Your Substation Project:
- Enhanced System Reliability: Protects expensive surge arresters and grounding systems by providing a reliable insulation barrier, reducing outage risks.
- Lower Lifetime Cost: The combination of zero maintenance and long life translates into significantly lower total cost of ownership compared to other materials.
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Global Compliance Flexibility: Our manufacturing process allows for customization to meet various international standards such as IEC, ANSI, or specific national standards, facilitating projects worldwide.
- For North America: Designs can be tailored to ANSI C29 standards.
- For Europe & Asia: Designs align with IEC 60383 and related standards.
- Simplified Logistics & Supply: With major shipment ports like Shanghai, Tianjin, Guangzhou, and Ningbo, we ensure efficient and flexible delivery to your project site, whether domestic or international.
Trust in the U70BS 210 Glass Insulator is built on a solid foundation. Jinhua Dika Electrical Equipment Co., Ltd. operates with an ISO9001-certified quality management system, ensuring consistent product quality from raw material inspection to final shipment. Our annual export value of US$1-1.5 Million and presence in markets across North America, South America, Europe, Asia, Africa, and Oceania demonstrate our capability to serve global clients reliably. With a dedicated team of 11-50 professionals, we focus on engineering and manufacturing excellence. Choosing our insulator means selecting a component backed by a manufacturer committed to quality, supported by flexible logistics from multiple Chinese ports, and proven in diverse climatic and operational environments worldwide. Contact us today to discuss your specific requirements for substation lightning arrester and grounding insulation solutions.
Frequently Asked Questions (FAQ)
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Q: What are the main advantages of glass insulators over porcelain for this application?
A: Glass insulators offer several key benefits: they are zero-maintenance as they do not require cleaning to maintain hydrophobicity, they have a consistent dielectric strength, and their "shatter" failure mode allows for easy visual identification of damaged units from a distance, enhancing inspection efficiency and substation safety. -
Q: Can the U70BS 210 be customized for a specific system voltage, like 145kV or 245kV?
A: Yes, absolutely. While the model denotes a mechanical strength class, the electrical characteristics—particularly creepage distance and withstand voltages—are customizable based on your system's operating voltage and the local pollution level per IEC 60815 standards. Please provide your voltage and site pollution class for a tailored quotation. -
Q: Is this insulator suitable for coastal areas with high salt pollution?
A: Yes, glass is inherently resistant to salt fog and pollution due to its non-porous surface. For severe marine environments, we can design the insulator with an increased creepage distance (sometimes called an "anti-fog" or "heavy-duty" profile) to ensure reliable performance under heavy contamination. -
Q: What standards does this product typically comply with?
A> Our standard production can be aligned with IEC 60383. We also have the capability to manufacture insulators compliant with ANSI C29.2, C29.9, and other regional standards. The specific standard compliance will be confirmed and documented based on your project requirements. -
Q: How does the mechanical strength rating of 210 kN relate to real-world conditions?
A> The 210 kN (approximately 21 metric tons) rating indicates the maximum cantilever load the insulator can withstand without mechanical failure. This accounts for combined loads from wind pressure on the arrester, ice accretion, and minor seismic activity, providing a significant safety margin for most substation installations. -
Q: What is the lead time for an order, and what are the packaging details?
A> Lead times vary based on order quantity and customization level. Standard configurations typically have shorter lead times. Each insulator is individually packed in a sturdy cardboard carton with internal cushioning to prevent transit damage. Bulk packaging on pallets is also available for large projects. -
Q: Do you provide test reports with the shipment?
A> Yes, we can provide routine test reports (RTR) for each manufacturing batch, which include key electrical and mechanical tests as per the agreed standard. Type test reports from independent laboratories are available upon request for initial qualification. -
Q: Are the metal fittings (flanges) included, and what material are they?
A> Yes, the insulator is supplied complete with galvanized steel or ductile iron fittings (flanges) as standard. The choice of fitting material (e.g., hot-dip galvanized steel for corrosion resistance) can be discussed based on your environmental conditions and specifications.
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