36KV 70KN Long Rod Suspension Composite Insulators

Insulators are core components applied in overhead transmission lines to provide mechanical support and electrical insulation, and they also serve distribution lines and substations. Silicone rubber is a widely used polymeric insulation material for high-voltage insulator production. This HAIVO brand composite insulator is manufactured with silicone rubber as the main housing material.

For power systems with different voltage levels, multiple types of insulators are available, including pin insulators, strain insulators, suspension insulators, post insulators, long rod insulators, horizontal post insulators, railway insulators, shackle insulators and stay insulators. This long rod suspension composite insulator is designed for high-voltage overhead power transmission line applications, with support for rated voltages up to 550 kV for line supporting, suspending and insulation purposes. The product series covers ratings up to 500kV, and is produced in line with IEC 61109 standard.

This series of composite insulators is designed for AC power distribution systems. Its compact structure and low weight support convenient transportation, and it can adapt to various complex operating environments. For business buyers focused on transmission line construction and maintenance, this product delivers stable insulation and mechanical support performance to match different project scales. The structural design helps reduce on-site installation steps and lower construction labor input for commercial procurement projects.

Key Features of 36KV Composite Insulators

Silicone Rubber Housing Performance

The silicone rubber housing is formed via full injection molding. It comes with hydrophobicity, hydrophobicity migration and soil resistance properties, along with electrical insulation and aging resistance characteristics. These properties help reduce pollution flashover incidents and support safe operation of high-voltage transmission lines. Hydrophobicity migration allows the insulator surface to maintain water-repellent performance even after long-term exposure to dusty environments, reducing the formation of conductive water films on the surface. The one-piece molding process reduces interface gaps on the insulator surface, lowering the risk of moisture and dust intrusion.

ECR Fiberglass Reinforced Epoxy Resin Rod

The insulator adopts a modified ECR fiberglass reinforced epoxy resin rod as the internal support structure. This material has resistance to high temperature, stress corrosion and acid attack, along with damping performance. Its tensile strength exceeds 1200Mpa, and it has resistance to creep and fatigue failure. These properties support the internal insulation quality and mechanical strength of the insulators during long-term operation. The core rod material maintains stable mechanical performance under temperature fluctuations and sustained load conditions, reducing deformation risk during extended service life.

End Fitting Crimping & Sealing Structure

End fittings are crimped onto the fiberglass rod with a voice-operated displacement type crimper. This crimping technique helps the insulators achieve consistent mechanical strength with small dispersion. The connection position between end fittings and rods is fused with the sheds housing via overall high-temperature vulcanized silicone rubber injection molding, which minimizes interface gaps. The internal radial multi-seal structure supports long-term sealing performance around the connection between end fittings and rods, reducing the risk of internal moisture ingress that may cause insulation degradation.

Main Technical Parameters of 70KN Long Rod Composite Insulators

Applications of Long Rod Suspension Composite Insulators

Long rod suspension composite insulators are suitable for a wide range of industrial applications. They are primarily installed in overhead transmission lines of different voltage levels, as well as distribution networks and substation facilities. The product can be used for supporting, suspending and insulating power transmission lines with rated voltages up to 550 kV.

With low weight and impact-resistant structure, the insulator fits projects that require convenient transportation and fast installation. It has resistance to ozone, UV radiation and earthquake impact, which makes it adaptable to outdoor operating environments with strong UV exposure and seismic activity. It also has anti-vibration and anti-moisture capabilities, along with anti-pollution flashover performance, so it can be used in high-altitude areas and regions with heavy air pollution. For railway power supply systems, industrial park distribution networks and hydropower station transmission projects, these insulators can deliver corresponding mechanical support and insulation performance. The lightweight design also reduces the load on transmission towers, helping lower the construction cost of tower structures for large-scale projects. The product supports low maintenance requirements, which helps reduce operation and management costs for power facilities.

FAQ About 36KV 70KN Composite Insulators

What standards do long rod suspension composite insulators comply with?

This series of long rod suspension composite insulators is manufactured in line with IEC 61109 standard. It also supports compliance with IEC, ANSI, GB and other international standards based on specific project requirements.

What color options are available for composite insulators?

The standard color options for these composite insulators include red, gray and white. Clients can put forward specific color demands for their commercial procurement projects.

Can custom designs be provided for specific project requirements?

Yes, special design solutions are available according to customer requirements. Clients can provide detailed project parameters and specification needs to get tailored product configurations.