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Overhead Line Fittings

SYJBY Torque-Controlled Parallel Groove Clamp

Product Overview

It is a type of non load bearing connector mainly used for the connection and jumper connection of wires in transmission lines, substations, and distribution line systems.

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Product Overview

  • As a premier manufacturer and supplier of advanced overhead line fittings, we present the SYJBY Torque Parallel Groove Clamp, engineered for secure and lasting electrical connections.

  • Constructed from high-grade aluminium alloy to ensure superior mechanical strength and durability.

  • Features a specialized torque nut designed to deliver constant, uniform contact pressure.

  • Pre-coated with a unique conductive antioxidant to aggressively resist environmental corrosion.

  • Accommodates an ultra-wide wire cross-section range from 16mm² up to 400mm².

Product Description

The SYJBY Torque Parallel Groove Clamp represents a significant leap forward in overhead power line connection technology. When handling the robust, precisely cast aluminium alloy body, you immediately feel the industrial-grade craftsmanship designed to withstand decades of harsh environmental exposure. The smooth, meticulously contoured edges of the keepers are engineered to cradle conductors securely without causing abrasion or mechanical stress, ensuring the structural integrity of your power network remains completely uncompromised even under heavy wind or ice loads.

Furthermore, the internal cable tray features a thick, tactile layer of proprietary conductive antioxidant. This specialized coating acts as an impenetrable barrier against moisture and atmospheric contaminants, sealing the connection point to prevent oxidation and galvanic corrosion, especially during sensitive copper-to-aluminum transitions. The result is a rock-solid, maintenance-free connection that keeps utility grids operating at peak efficiency, regardless of the severe weather conditions they face.

Product Specifications

Model

Applicable wire section (mm²)

Bolt No.

SYJBY2-16/120(2)

16/120

2

SYJBY3-16/120(3)

16/120

3

SYJBY2-50/240(2)

50/240

2

SYJBY3-50/240(3)

50/240

3

SYJBY2-120/400(2)

120/400

2

SYJBY3-120/400(3)

120/400

3

Note: The body and keepers are aluminium alloy parts.

Key Features & Highlights

Unwavering Connection Stability

The core brilliance of this clamp lies in its ability to maintain a flawless electrical pathway regardless of external conditions and mechanical vibrations.

  • The intelligent span design effortlessly accommodates varying diameters between main and branch lines.

  • Constant pressure mechanisms prevent wire loosening caused by daily thermal expansion and contraction cycles.

  • Maximizes the contact surface area to ensure maximum current transfer efficiency without energy loss.

Engineered for Severe Environments

Outdoor electrical fittings must survive the harshest elements. This clamp is built with an uncompromising defense system against nature.

  • Premium aluminium alloy construction resists mechanical fatigue and long-term environmental degradation.

  • The unique conductive antioxidant effectively blocks aggressive air and moisture intrusion.

  • Completely prevents poor contact issues typically caused by oxidation or galvanic corrosion on the contact surface.

Streamlined Field Operations

Time is a critical resource in grid construction and maintenance. This product is meticulously designed to accelerate project timelines while elevating safety standards.

  • Completely eliminates the need for heavy, expensive specialized crimping tools.

  • Installation quality is standardized by the torque nut, removing human error from the equation.

  • Smart component integration prevents parts from dropping during complex high-altitude installations.

Comprehensive Engineering Dimensions

Material & Anti-corrosion Excellence

Crafted from premium aluminium alloy, the main body exhibits exceptional tensile strength and weather resistance. The cable groove is pre-treated with a distinctive conductive antioxidant. This thick, protective paste effectively seals out moisture and airborne contaminants, stopping oxidation in its tracks and significantly extending the lifespan of the fitting in aggressive outdoor environments.

SYJBY Torque Parallel Groove Clamp showing 2-bolt and 3-bolt aluminium alloy designs for overhead lines

Adaptability & Compatibility

Featuring an innovative span design, this hardware supports an ultra-wide wire diameter range from 16mm² up to 400mm². It seamlessly integrates with aluminum stranded wires, copper wires, overhead insulated wires, and steel core aluminum stranded wires (ACSR). It is the ultimate solution for executing flawless copper-to-copper, aluminum-to-aluminum, and copper-to-aluminum transition connections.

Installation Efficiency

Field crews can achieve perfect installations without relying on bulky, expensive specialized tools. The intuitive design ensures that the final connection quality is never compromised by the varying skill levels of individual operators. Furthermore, the captive hardware design prevents dropped components during critical elevated tasks, protecting ground personnel and saving retrieval time.

Specifications & Models Matrix

To meet diverse mechanical tension and current-carrying demands, the product line offers a comprehensive matrix of 2-bolt and 3-bolt configurations. This clear, structured variety simplifies the procurement process, allowing engineers and project managers to pinpoint the exact specification required for their specific main and branch line architecture.

Safety & Quality Control

Designed with a strict focus on long-term, maintenance-free operation in overhead power networks. The uniform distribution of bolt pressure safeguards the physical integrity of the conductors, ensuring the continuous, stable, and safe operation of the power grid while drastically reducing future maintenance and replacement expenditures.

Frequently Asked Questions

Can this clamp be used for connecting dissimilar metals?

Yes, the JBY torque merger clamp is explicitly designed for transition connections. It safely and effectively connects copper wire to aluminum wire, as well as handling standard copper-to-copper and aluminum-to-aluminum joints, thanks to its specialized conductive antioxidant coating that prevents galvanic corrosion.

Do I need to purchase a specific hydraulic crimping tool for installation?

No specialized tools are required for the installation of this product. The engineered torque nut design allows field technicians to achieve the perfect clamping force using standard hand tools, significantly reducing equipment costs, simplifying the installation process, and ensuring results are not affected by human factors.

How does the torque nut improve the lifespan of the connection?

Traditional clamps can loosen over time due to the thermal cycling (expansion and contraction) of the conductors. The specially designed torque nut compensates for these micro-movements, maintaining a constant, optimal contact pressure between the wire and the clamp body for an extended period, ensuring a good electrical connection.

What wire types are compatible with this specific groove clamp?

This highly versatile fitting accommodates a wide array of conductors. It is perfectly suitable for aluminum stranded wire, copper wire, overhead insulated wire, steel core aluminum stranded wire (ACSR), and other wires, making it a universal solution for diverse overhead line applications.

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