U70bld Double-Shed Toughened Glass Insulator

| Product Overview

The U70BLD Double-Shed Toughened Glass Insulator is designed for reliable insulation and mechanical support        in overhead transmission lines, distribution networks, and high-voltage power systems. Made from toughened        glass, this insulator combines stable electrical performance with strong mechanical strength, making it suitable        for long-term outdoor operation under changing weather and environmental conditions.

The double-shed profile helps improve pollution resistance by increasing the creepage path and supporting better        surface performance in areas exposed to dust, moisture, salt fog, industrial pollution, and other challenging        operating environments. Its disc suspension structure allows the insulator to be connected into strings according        to different voltage levels and line design requirements.

| Key Features

• Double-shed structure: The optimized shed design helps improve performance in polluted or            humid environments by extending the creepage distance and reducing the risk of surface flashover.

• Toughened glass material: The glass body provides high mechanical strength, stable insulation            performance, and easy visual inspection during routine maintenance.

• Reliable suspension design: The disc suspension structure is suitable for forming insulator            strings in transmission and distribution line systems.

• Strong mechanical performance: The product range covers multiple mechanical failing load            options, allowing customers to select suitable models according to line tension and project requirements.

• Good environmental adaptability: It is suitable for outdoor use in areas with wind, rain,            temperature changes, dust, and industrial pollution.

• Convenient maintenance: Toughened glass insulators are easy to inspect visually, helping            maintenance teams identify damaged units more efficiently.

| Application Areas

U70BLD Double-Shed Toughened Glass Insulators are widely used in high-voltage transmission lines, power        distribution systems, substations, railway power systems, and outdoor electrical infrastructure. They are        especially suitable for transmission line projects where stable insulation, mechanical reliability, and pollution        resistance are important.

• Overhead transmission line insulation

• Power distribution network construction

• Substation incoming and outgoing line systems

• Suspension insulator strings for power towers

• Polluted, coastal, industrial, or dusty operating areas

• New power line construction and existing line replacement projects

| Why Choose Double-Shed Glass Insulators?

Compared with standard shed designs, double-shed glass insulators provide improved surface distance and better        adaptability in contaminated environments. This makes them a practical choice for power line projects in coastal        regions, industrial zones, mining areas, and locations with frequent dust or humidity.

The toughened glass structure also offers a clear advantage in maintenance. When damage occurs, the condition of        the glass unit can usually be identified visually, helping operators arrange timely replacement and reduce hidden        risks in line operation.

| Product Advantages

| Selection Guide

When selecting a double-shed toughened glass insulator, customers should consider the line voltage level,        mechanical load requirement, pollution level, creepage distance, coupling size, and installation environment.        For projects in heavily polluted or coastal areas, models with longer creepage distance are generally preferred        to improve insulation reliability.

If you are not sure which model is suitable for your project, you can provide line voltage, installation location,        pollution level, mechanical load requirement, and project drawings. NJREC can assist with model selection based        on your technical requirements.

| Quality and Inspection

NJREC focuses on product quality, dimensional accuracy, mechanical performance, and stable insulation capability.        Each insulator is manufactured to meet power industry requirements and is suitable for international power        transmission and distribution projects.

Inspection can include appearance checking, dimensional verification, mechanical performance testing, and        electrical performance testing according to project requirements. Test reports and related documents can be        provided when required by customers.

| Installation and Maintenance Notes

• Check the insulator surface before installation to ensure there are no visible defects or transportation damage.

• Confirm that the coupling size and accessories match the power line design requirements.

• Install the insulator string according to engineering drawings and relevant power line construction standards.

• Carry out regular line inspections, especially after storms, strong wind, lightning, or heavy pollution events.

• Replace damaged units in time to ensure safe and stable operation of the power system.