120KN High Voltage Long Rod Composite Insulators

Product Overview

120KN high voltage long rod composite insulators are advanced electrical insulation components engineered for heavy-duty mechanical support and reliable electrical isolation in high-voltage power systems. Manufactured by HAIVO using premium silicone rubber and modified ECR fiberglass reinforced epoxy resin, these composite long rod insulators deliver exceptional performance in harsh environmental conditions, from coastal areas with high salt spray to high-altitude regions with intense UV radiation. Designed to meet IEC 61109 standards, our 120KN composite insulators support rated voltages up to 550kV, making them ideal for critical overhead transmission line applications where mechanical strength and electrical reliability are non-negotiable.

Technical Specifications

Core Performance Advantages

Superior Mechanical Durability

Our high voltage long rod composite insulators feature a modified ECR fiberglass core with tensile strength exceeding 1200Mpa, offering exceptional resistance to high temperatures, stress corrosion, and acid attack. The voice-operated displacement crimping technology ensures uniform mechanical strength with minimal dispersion, preventing creep and fatigue failure even under long-term heavy loads.

Exceptional Electrical Insulation

The one-piece injection-molded silicone rubber housing provides excellent hydrophobicity and hydrophobic migration, effectively preventing pollution flashovers. The internal radial multi-seal structure guarantees long-term sealing reliability, eliminating internal insulation degradation caused by moisture ingress.

Environmental Resilience

These 120KN long rod composite insulators exhibit outstanding resistance to ozone, UV radiation, and earthquakes. Their high anti-aging properties make them suitable for deployment in high-altitude, desert, and coastal regions, reducing maintenance requirements and extending service life.

Target Applications

15kV to 550kV overhead transmission lines for power transmission and distribution

High-voltage substations and switching stations

Industrial power distribution systems in harsh environmental conditions

High-altitude power infrastructure projects

Coastal and offshore power transmission networks

Customization & Bulk Supply Services

HAIVO offers comprehensive customization options for 120KN composite long rod insulators to meet specific project requirements. We can adjust creepage distance, shed configuration, and end fitting designs according to your technical specifications. Standard colors include red, gray, and white, with custom colors available upon request. We maintain large inventory levels to support bulk orders, ensuring timely delivery for large-scale power projects worldwide. Our logistics team handles international shipping efficiently, providing door-to-door delivery services.

Why Choose HAIVO

HAIVO is a leading manufacturer of high-quality composite insulators with decades of experience in the power industry. All our products are manufactured in compliance with IEC, ANSI, and GB standards, undergoing rigorous quality testing at every production stage. We combine advanced manufacturing technology with strict quality control to deliver reliable, cost-effective insulation solutions. Our dedicated technical support team provides pre-sales consultation and after-sales service, ensuring optimal performance of our products in your applications.

FAQs

What is the maximum rated voltage for these 120KN composite insulators?

Our 120KN long rod composite insulators support rated voltages up to 550kV, suitable for most high-voltage transmission line applications.

Can you provide insulators with custom creepage distances?

Yes, we offer custom creepage distance options to meet specific pollution level requirements in different regions.

What is the typical lead time for bulk orders?

Standard bulk orders are typically delivered within 15-30 days, depending on order quantity and customization requirements.