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Trusted manufacturer of composite, porcelain, and glass insulators, power hardware, and cable accessories for global transmission and substation networks.
Explore Our ProductsDalian Tucheng International Co., Ltd. (TCI) is a leading manufacturer and exporter of high-voltage insulators, power fittings, bushings, cables, and accessories for power transmission lines and substations. With decades of experience in design, research, manufacturing, testing, and logistics, we deliver reliable, high-performance solutions to clients in over 20 countries.
We specialize in composite, porcelain, and glass insulators, HDPE insulators, substation fittings, disconnectors, earthing switches, and aerial optical cables. Our products meet international standards and are rigorously tested to ensure durability and safety in extreme conditions.
Rated Voltage: 11kV–1000kV | SML: 45kN–400kN | Colors: Brown, Gray
High-strength porcelain disc for transmission lines
Superior dielectric strength and resistivity
High-density polyethylene for overhead lines
Clamps, suspension sets, armor rods, and more
For overhead contact systems (OCS)
For safe isolation of electrical circuits
Fiber optic ground wire for power lines
ISO9001, ISO14001, CESI type tests, and rigorous in-house quality control ensure every product meets international standards.
Successfully delivered to over 20 countries including Jordan, Tanzania, Egypt, Norway, and Uganda.
We manufacture based on customer drawings and specifications, offering OEM and ODM services.
Our engineers provide on-site assistance, installation guidance, and after-sales service worldwide.
Supplied composite and porcelain insulators for critical substation infrastructure.
Provided glass disc insulators and hardware fittings for transmission upgrade.
NEPCO project with full line hardware and suspension insulators.
Delivered cost-effective porcelain and HDPE insulators for rural grid expansion.
Complete insulator and fitting package for urban power network.
Railway insulators and polymer suspension units for Nordic climate resilience.
In May 2025, TCI hosted a delegation from Jordan's National Electric Power Company (NEPCO) for a comprehensive inspection of our production and testing facilities.
On April 24th, TCI welcomed engineers from the Afghan National Power Company for product inspection and technical discussions on future collaboration.
For inquiries, technical support, or project collaboration, contact us today. We respond within 24 hours.
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