Products
NXJ Wedge-Type Insulated Tension Clamp
NXJ Wedge-Type Insulated Tension Clamp
The NXJ series wedge-type insulated tension clamp-also known as a plastic tension clamp or tension clamp for overhead insulated conductors-is a specialized power fitting for 10kV and lower-voltage rural power grids and overhead service drop lines. It is designed to anchor and tension overhead insulated conductors at line terminals and turning points, bearing the full tensile load of the conductor and working in conjunction with utility poles and mounting brackets to secure the line.
I. Materials
Main Wedge Shell: Injection-molded as a single unit from high-strength, modified glass-fiber reinforced nylon, incorporating additives for UV resistance, aging resistance, and low-temperature durability. It meets power distribution standards for insulation, effectively isolating electrical hazards and preventing leakage or short circuits. Resistant to sunlight, frost, and acidic/alkaline rain, it remains crack-free and retains its structural integrity without becoming brittle during long-term use in harsh coastal or mountainous environments, offering an outdoor service life of over 10 years. The shell features a multi-layer anti-slip corrugated design to increase friction against the cable, ensuring a secure grip without slippage.
Internal Wedge Core: Made from the same insulating plastic material, it features a self-locking wedge structure that conforms to the cable jacket; it grips the cable without cutting the insulation layer, eliminating the need for wire stripping during installation.
III. Application Scenarios
Upgrading and renovation of rural and urban power grids; terminal anchoring for low-voltage overhead insulated conductors;
Residential service connections in rural areas and renovation of aging lines in existing communities;
Overhead lines for municipal street lighting and tensioning/anchoring of small ADSS fiber-optic cables;
Low-voltage power distribution in industrial facilities and overhead wiring for outdoor photovoltaic installations.

II. Structure
Main Wedge Shell: Injection-molded as a single unit from high-strength, modified glass-fiber reinforced nylon, incorporating additives for UV resistance, aging resistance, and low-temperature durability. It meets power distribution standards for insulation, effectively isolating electrical hazards and preventing leakage or short circuits. Resistant to sunlight, frost, and acidic/alkaline rain, it remains crack-free and retains its structural integrity without becoming brittle during long-term use in harsh coastal or mountainous environments, offering an outdoor service life of over 10 years. The shell features a multi-layer anti-slip corrugated design to increase friction against the cable, ensuring a secure grip without slippage.
Internal Wedge Core: Made from the same insulating plastic material, it features a self-locking wedge structure that conforms to the cable jacket; it grips the cable without cutting the insulation layer, eliminating the need for wire stripping during installation.
IV. Summary
Compared to traditional metal tension clamps, this product is lightweight, offers safe insulation, and is free from corrosion risks, requiring no maintenance after a one-time installation. With standardized mass production and excellent cost-effectiveness for bulk procurement, it is the preferred choice of hardware for tensioning and anchoring low-voltage overhead lines.
welcome you to consult us at any time
Amy/Sales Manager
Wechat/Whatsapp/Tel:+86 13803104895
Email:amy13803104895@gmail.com
Add: Dongmingyang Village, Linmingguan Town,Yongnian District, Handan City, Hebei Province
Related Products
Company Profile
Handan Jinmai Fastener Manufacturing Co., Ltd., established in 2010, is located in the largest fastener distribution center-Yongnian District, Handan City, Hebei Province, China. Our company is specialized in research, produce and sales of science and technology of electric power accessories, and in the forefront of the industry with digital control and advanced technology, to enable us to meet the diversified market demand.
We have more than 100 excellent employees, as well as strong productivity. The main products are ADSS, OPGW, FTTX optical cable accessories, power fittings, fasteners and other thousands of products; which are mainly used in power line, telecommunication, overhead line and other fields. The products have passed the ISO9001 quality management system certification and are exported to more than 20 countries and regions in Africa, Asia and America. With strict management and high-quality after-sales service, we have won the trust of our customers.
We hope to cooperate with customers all over the world kindly to promote the development of the country's power industry and work together to succeed.








Hot Tags: nxj wedge-type insulated tension clamp, suppliers, factory, wholesale, buy, for sale















