11kv Composite Long Rod Insulator Overhead Transmission Line

Product Overview

Our 11kV Composite Long Rod Insulator is a premium heavy-duty insulation solution purpose-built for high-voltage overhead power transmission systems, delivering exceptional mechanical tension bearing and reliable electrical insulation for grid trunk lines and large-span transmission projects. Produced by HAIVO, a professional manufacturer of high-voltage composite insulation products, this long rod insulator adopts high-grade silicone rubber housing, the industry-leading polymeric insulation material for ultra-high voltage applications worldwide.

Fully compliant with IEC 61109, ANSI, GB and other international standards, our composite long rod insulator for overhead transmission line supports rated voltage up to 500kV, catering to the stringent requirements of high-voltage and ultra-high voltage transmission projects for global power industry clients. We provide a complete portfolio of long rod composite insulators with diverse mechanical load ratings and structural designs to match different project specifications.

Technical Specifications

Core Performance Advantages

Ultra-High Tensile Strength & Mechanical Stability

The modified ECR fiberglass reinforced epoxy resin core rod features a tensile strength exceeding 1200Mpa, with superior resistance to creep, fatigue failure, stress corrosion and acid attack. Paired with advanced voice-operated displacement crimping technology, our suspension type composite long rod insulator delivers high mechanical strength with minimal dispersion, perfectly adapting to the tension requirements of large-span transmission lines.

Superior Weather & Anti-Pollution Performance

The one-piece high-temperature vulcanized silicone rubber housing offers excellent hydrophobicity, hydrophobic migration and anti-aging properties, with strong resistance to ozone, UV radiation and severe weather. The internal radial multi-seal structure ensures long-term sealing reliability, effectively preventing internal insulation failure and reducing pollution flashover risks in heavily polluted areas.

Lightweight & Anti-Seismic Design

Compared with traditional ceramic and glass insulators, our high voltage composite long rod insulator is significantly lighter in weight, greatly reducing transportation, hoisting and installation costs for large-scale transmission projects. The integrated structure provides outstanding anti-vibration and anti-seismic performance, ensuring stable operation in high-altitude and earthquake-prone areas.

Target Applications

Our 11kV Composite Long Rod Insulator is widely applied in 11kV-500kV overhead power transmission trunk lines, large-span and cross-river power transmission projects, wind power and photovoltaic grid-connected transmission systems, railway electrification and urban rail transit power supply networks, and high-altitude and heavily polluted area power transmission projects.

Customization & Bulk Supply Services

We provide tailored customization solutions to meet diverse project demands, including custom structural design, creepage distance adjustment, color options (red, gray, white), and compliance with specific regional and project standards. With large-scale automated production lines, we support stable bulk supply for national grid projects and international EPC contracts, with strict quality control and guaranteed delivery lead times, as well as OEM/ODM services for global power equipment partners.

Why Choose HAIVO

HAIVO is a professional composite insulator manufacturer with deep industry expertise, serving global power grid operators, transmission line EPC contractors and power equipment distributors for years. We adopt fully automated production processes from raw material inspection to finished product testing, with a complete quality management system to ensure product consistency and reliability. Our professional technical team provides full-cycle support from pre-sales parameter matching to after-sales technical guidance, helping clients solve complex transmission line insulation challenges.

FAQs

What standards do your 11kV Composite Long Rod Insulators comply with?

Our products fully meet IEC 61109, ANSI, GB and other mainstream international standards, and can be customized to comply with specific regional industry standards.

What is the maximum rated voltage of your long rod composite insulators?

Our standard composite long rod insulators support rated voltage up to 500kV, with custom solutions available for higher voltage transmission projects.

Can you customize insulators for special environmental conditions?

Yes, we can optimize the structure, material formula and creepage distance of products to adapt to high altitude, heavy pollution, high humidity and other harsh environments.

What is the typical service life of your composite long rod insulators?

Under normal operating conditions, our long rod composite insulators have a service life of more than 30 years, with excellent long-term anti-aging and weather resistance.