Aerial Anchor Clamp Comprehensive Guide

With the rapid evolution of communication and power infrastructure, aerial anchor clamps have become indispensable hardware in community power distribution and Fiber-to-the-Home (FTTH) networks. 

These high-strength pole line accessories provide reliable support for the safe suspension and stable transmission of cables and optical cables between utility poles and buildings.

I. Product Definition and Nomenclature

Aerial anchor clamps (also known as dead-end clamps, tension clamps, or strain clamps) are hardware devices used for terminal anchoring of overhead conductors or optical cables. Their primary function is 

to secure cables at support points such as utility poles, brackets, or building exterior walls while applying appropriate tension, ensuring continuous and stable transmission of signals and power.

II. Structural Composition and Design Features

The typical structure of an anchor clamp consists of the following three main components:

Housing/Shell: Designed to accommodate the cable and wedge assembly, manufactured from UV-resistant nylon or high-strength cast aluminum alloy, combining insulation performance with structural 

strength.

Wedge Assembly: Responsible for cable clamping, made from glass fiber reinforced polymer (GFRP) material, offering a high coefficient of friction and excellent wear resistance to ensure consistently 

reliable holding force.

Tail Pull Ring/Steel Strap: Made of high-strength steel wire, used to suspend the clamp on poles or brackets. The tail section is equipped with a high-strength plastic protective sleeve that effectively isolates 

the steel wire from direct contact with support structures, preventing friction damage.

III. Working Principle: Wedge Self-Locking Mechanism

The core operating mechanism of the anchor clamp is based on the wedge self-locking principle. When the cable is inserted into the channel between the wedge and the housing, the external tension applied 

to  the cable pulls the wedge deeper into the housing, causing the clamping force to increase proportionally with the tension. This design ensures continuous reliability of the anchoring point under various 

operating conditions.

Its high tensile strength design ensures stable line operation even under strong winds, extreme heat, or severe cold conditions. The tail plastic protective sleeve effectively prevents direct friction between 

the steel wire and the bracket, extending the service life of both the hardware and the support structure.

IV. Core Performance Advantages

Tool-Free Installation, No Special Tools Required: The structural design fully considers on-site operational convenience, allowing installers to work without carrying complex equipment.

Self-Adjusting Wedge: The wedge automatically adjusts its clamping position according to cable diameter, accommodating multiple cable specifications with simple operation.

Durable Tail Pull Ring: Features a steel-reinforced structure with UV-resistant plastic coating, combining strength with weather resistance.

Full Cable Protection: Does not damage the cable sheath during installation and operation, ensuring insulation integrity.

Open-Ended Tail Design: Supports quick attachment to closed pole brackets, improving efficiency in high-altitude operations.

All-Climate Adaptability: Maintains stable performance under harsh weather conditions including high temperatures, rain, snow, and severe cold.

Factory-Direct Supply, Cost-Effective: Eliminates intermediate distribution channels, providing users with more competitive procurement costs.

V. Typical Application Areas

Anchor clamps have achieved extensive application coverage across multiple industries:

Telecommunications Industry: Terminal anchoring (single-end or double-end) of FTTH drop cables, ADSS self-supporting cables, and figure-8 cables; cable fixing at telecommunications base stations.

Power Industry: Terminal fixing of conductors on medium and low-voltage overhead insulated lines.

Construction and New Energy Industry: DC collection cable installation for photovoltaic rooftop power stations; overhead section anchoring of wind farm collector lines.

Transportation Industry: Auxiliary cable fixing for rail transit contact systems and electrified railways.

VI. Key Selection Parameters

When selecting anchor clamps for ADSS optical cables, the following factors should be comprehensively evaluated:

Cable type and outer diameter

Local meteorological conditions at the project site (wind pressure, temperature, humidity, etc.)

Line design tension and span length

Support structure type (utility poles, towers, wall brackets, etc.)

Based on the above parameters, match the appropriate anchor clamp model with corresponding dimensions and load ratings from the product specification table.

VII. Supplier Selection Recommendations

Hebei JINGSA, as a professional overhead hardware manufacturer in China, has accumulated deep technical expertise and manufacturing capabilities in the anchor clamp field. Leveraging a professional 

engineering team, strict quality control system, advanced production processes, and premium raw materials, JINGSA anchor clamps have established a strong reputation and broad user base in the 

global market.

Whether in ADSS fiber optic installation or power line anchoring scenarios, JINGSA's product designs fully consider the practical demands of harsh environments and heavy-load conditions, offering 

excellent durability and corrosion resistance.

We support customization on demand—for further product details or customized procurement solutions, please feel free to contact our team, and we will be delighted to provide you with 

professional support.