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Help CenterU70BS 210 Glass Insulator 10kV Rated Voltage IEC 60383 Compliant Overhead Transmission Lightning Protection
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As a professional manufacturer with 11-50 skilled employees and an annual export value of US$1-1.5 million, Jinhua Dika Electrical Equipment Co., Ltd. is proud to offer the U70BS 210 Glass Insulator for 10kV overhead transmission systems. This insulator strictly follows IEC 60383 standards and is specifically designed to provide reliable lightning protection and electrical insulation. Its advanced tempered glass construction ensures long-term durability and consistent performance in harsh outdoor environments.
The U70BS model features a 210mm diameter that balances mechanical strength with electrical clearance, making it an ideal choice for distribution lines requiring 10kV rated voltage. Whether used in rural, urban, or industrial zones, this insulator effectively reduces flashover risks and minimizes line losses.
Key Features & Benefits
- High Mechanical Strength: Withstands up to 70kN mechanical load (U70BS rating), ensuring stability under wind, ice, and conductor tension.
- Excellent Electrical Performance: 10kV rated voltage, with low leakage current and high impulse withstand capability for lightning protection.
- Self-Cleaning Surface: Smooth glass sheds dust and pollutants, reducing maintenance frequency.
- Thermal Shock Resistant: Tempered glass can handle sudden temperature changes without cracking.
- Easy Installation: Compatible with standard hardware and fittings, reducing labor time.
- Transparent Design: Allows visual inspection of internal cracks or bird damage.
Technical Specifications (Typical Values)
| Rated Voltage | 10 kV |
| Mechanical Load (Coupling) | 70 kN |
| Creepage Distance | ≥ 380 mm |
| Lightning Impulse Withstand Voltage | ≥ 95 kV (positive/negative) |
| Power Frequency Withstand Voltage (wet) | ≥ 40 kV |
| Weight (approx.) | 4.5 kg |
| Material | Tempered Glass (SiO₂) |
| Color | Transparent / White (optional tinted) |
Why Choose Dika's U70BS Glass Insulator?
Our manufacturing facility in Jinhua, Zhejiang, China, is ISO9001-certified and equipped with modern production lines. Every insulator undergoes rigorous testing to ensure compliance with IEC 60383. With shipment ports including Shanghai, Ningbo, Tianjin, and Guangzhou, we deliver globally to North America, Europe, Southeast Asia, Africa, and more.
The U70BS has been chosen by utility companies for its reliable lightning protection performance. The tempered glass offers superior dielectric strength and long-term stability; even if damaged, glass insulators retain partial insulation until replacement. This reduces outage risks in storm-prone areas.
We also provide customization options such as different coupling sizes or color coding upon request. Our experienced team ensures quick response and on-time delivery. Contact us today to discuss your project requirements and request samples!
Frequently Asked Questions
Q1: What is the main difference between glass and porcelain insulators?
A: Glass insulators offer transparency for easy visual inspection of damage, self-cleaning properties, and faster thermal shock resistance. Porcelain is more brittle but has longer history; glass typically provides better impulse performance.
Q2: Does this insulator include hardware (cap and pin)?
A: The insulator body is supplied with standard coupling dimensions (cap and pin can be ordered separately as optional). Please confirm with our sales team for complete assembly requirements.
Q3: What is the operating temperature range for the U70BS?
A: It can operate from -40°C to +70°C. The tempered glass withstands thermal cycles without degradation.
Q4: How does it protect against lightning?
A: The insulator provides a high impulse withstand voltage (≥95 kV) designed to direct lightning surges to ground through the tower, minimizing flashover across the insulator string.
Q5: Can it be used in coastal or highly polluted areas?
A: Yes, the smooth glass surface reduces pollution accumulation and is easier to clean. However, for extreme pollution areas, anti-fog or long-leakage distance types are recommended. Our team can advise based on your site.
Q6: Is this product certified according to IEC 60383?
A: Yes, it fully complies with IEC 60383-1 and related tests. The factory holds ISO9001 certification, and each batch can be supplied with a test certificate upon request.
Q7: What is the typical lifespan of this glass insulator?
A: Under normal conditions, it can last 30-40 years. The glass does not age electrically, and mechanical strength remains stable.
Q8: What are the packaging details for export?
A: Each insulator is individually wrapped and packed in sturdy carton or wooden pallets, suitable for sea freight. Custom packaging is available.
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