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  • Bolted Type Strain Clamp Tension Clamp NLL series
  • Bolted Type Strain Clamp Tension Clamp NLL series
  • Bolted Type Strain Clamp Tension Clamp NLL series
  • Bolted Type Strain Clamp Tension Clamp NLL series
  • Bolted Type Strain Clamp Tension Clamp NLL series

Bolted Type Strain Clamp Tension Clamp NLL series

Product Description

Bolted Type Strain Clamp Tension Clamp - NLL series

A Bolted Type Tension Clamp is a type of electrical hardware used to secure overhead power lines to poles or towers. It consists of a metal band that is placed around the conductor, with bolts that are tightened to increase the tension and hold the conductor in place. This type of clamp is used for high tension applications and is designed to maintain its grip even under extreme weather conditions or high winds.

Bolted type tension clamp is also called dead end strain clamp or quadrant strain clamp. This product is NLL series, Aluminum Alloy Strain Clamp. One set of the clamp include U-bolt, washers, nuts and aluminum body.

Types of Bolted Type Tension Clamp

Depending on the conductor diameter, NLL tension clamp can be classified by the conductor diameter, there are NLL-1, NLL-2, NLL-3, NLL-4, NLL-5 (the same for the NLD series).

According to the material, the NLL series tension clamp is constructed from aluminum alloy, whereas the NLD series is comprised of malleable iron. This product is NLL series tension clamp.


NLL Series Tension Clamps (made of aluminum alloy) Specification


Catalog
No.
Conductor Dia.
(mm)
Dimensions (mm)U Bolt Qty
(pc.)
Rated Failure Load
(kN)
Weight
(kg)
MCL₁L₂
NLL-15.1-11.416.0 19.0 126.0 108.0 2.0 40.0 0.5 
NLL-28.9-18.516.0 24.0 176.0 187.0 2.0 40.0 1.8 
NLL-35.0-15.016.0 17.5 190.0 203.0 3.0 70.0 1.9 
NLL-412.1-21.816.0 30.0 298.0 284.0 4.0 90.0 4.1 
NLL-518.0-30.024.0 36.0 446.0 342.0 5.0 620.0 7.0 

Features of Bolted Type Tension Clamp

A Bolted Type Tension Clamp is a type of clamp used in electrical power transmission and distribution systems to secure power cables. Here are some of its key features:

Design: The clamp consists of two main components: a body and a bolt. The body is usually made of aluminum or other corrosion-resistant materials and is designed to provide a secure grip on the cable. The bolt is typically made of stainless steel and is used to tighten the clamp onto the cable.

Easy Installation: The bolted type tension clamp is designed for easy installation, as it can be tightened by hand or with a wrench. This makes it suitable for use in remote locations or in situations where it is not feasible to use specialized tools.

Cable Size Compatibility: Bolted type tension clamps are available in a range of sizes to accommodate different cable diameters. This allows them to be used in a variety of applications, from low-voltage power distribution to high-voltage transmission systems.

High Strength: The clamps are designed to withstand high levels of tension, making them suitable for use in high-stress applications. They are also engineered to resist loosening over time, ensuring a secure connection for the life of the system.

Corrosion Resistance: The materials used in the construction of bolted type tension clamps are highly resistant to corrosion, making them suitable for use in harsh environments.

Versatility: Bolted type tension clamps are versatile and can be used in a variety of applications, including power transmission and distribution, grounding systems, and cable support systems.

Cost-Effective: Compared to other types of clamps, bolted type tension clamps are relatively inexpensive and provide an economical solution for securing power cables.

Bolted Type Tension Clamp installation:

Cable Preparation: The cable should be cleaned and free of any damage or debris before installing the clamp. Any cuts or abrasions in the cable can weaken its strength and may cause the clamp to fail.

Proper Sizing: The clamp should be the correct size for the cable diameter. Installing a clamp that is too small will not provide adequate tension and may result in a loose connection, while a clamp that is too large may cause damage to the cable.

Torque Specification: The bolt should be tightened to the manufacturer's specified torque specification. Over-tightening the bolt may cause damage to the cable, while under-tightening the bolt may result in a loose connection.

Tightening Sequence: The bolts should be tightened in a specific sequence, following the manufacturer's instructions, to ensure an even distribution of tension around the cable.

Grounding: If the clamp is being used in a grounding application, it is important to ensure that it is properly grounded to provide a safe and effective connection.

Inspections: Regular inspections should be performed to ensure that the clamp remains secure and to detect any signs of damage or wear. If any issues are detected, the clamp should be replaced to prevent safety hazards.

By following these guidelines and paying attention to the installation process of a bolted type tension clamp, you can ensure a safe and secure connection for your power cable.


Tension Clamps Complete Buying Guide:


What Is A Tension Clamp?

Bolted Type Strain Clamp Tension Clamp NLL series

A tension clamp is a device used to secure power cables in electrical power transmission and distribution systems. The clamp provides tension to the cable to ensure a secure connection and prevent slippage or movement. Tension clamps are an essential component of overhead power transmission and distribution systems, and they are available in a variety of sizes and designs to accommodate different cable diameters and applications.



Uses Of Tension Clamp:

Tension clamps are used in a variety of applications, including:


Power transmission and distribution: Tension clamps are used to secure power cables in overhead power transmission and distribution systems.


Grounding: Tension clamps are used in grounding systems to provide a secure and effective connection to the ground.


Cable support: Tension clamps are used to support power cables and prevent them from sagging or coming into contact with other objects.


Temporary installations: Tension clamps can be used in temporary installations, such as construction sites, to provide a secure connection for power cables.


Types Of Tension Clamps For Overhead Lines:

There are several types of tension clamps available for overhead power transmission and distribution systems, including:

Bolted Type Tension Clamp: This type of clamp consists of a body and a bolt, and it is designed for easy installation.


Tension Sleeve: A tension sleeve is a type of clamp that is designed to fit around the cable and provide tension through compression.


Deadend Clamp: A deadend clamp is used to secure the end of a power cable, and it provides tension through compression.


Suspension Clamp: A suspension clamp is used to support a power cable in an overhead power transmission and distribution system.


Components Of A Tension Clamp:

The components of a tension clamp may vary depending on the type of clamp, but they typically include:

Body: The body of the clamp is the main component and is designed to provide a secure grip on the cable.


Bolt: The bolt is used to tighten the clamp onto the cable, providing tension and ensuring a secure connection.


Washer: A washer may be included in the design of the clamp to distribute the tension evenly around the cable.


Nut: The nut is used to secure the bolt in place and may be adjusted to provide the correct level of tension.


Materials For Tension Clamps:

Tension clamps are typically made from aluminum or other corrosion-resistant materials to provide long-lasting performance and durability. Other materials, such as stainless steel or plastic, may also be used in the construction of tension clamps, depending on the application and requirements.


Conclusion:

Tension clamps are an essential component of overhead power transmission and distribution systems and are used to secure power cables and ensure a safe and reliable connection. They are available in a variety of sizes and designs to accommodate different cable diameters and applications, and they can be made from a range of materials, including aluminum, stainless steel, and plastic. When selecting a tension clamp, it is important to consider the cable diameter, application, and environment to ensure that the right type of clamp is used for the job.


About us

HEBEI YIPENG LINE EQUIPMENT MANUFACTURE CO., LTD. is a leading Strain Clamp Supplier and Manufacturer. With years of experience and a commitment to quality, the company has established itself as a trusted provider of top-notch strain clamps for customers around the world. The company utilizes the latest technology and manufacturing processes to produce clamps that meet the highest industry standards for durability, performance, and safety. HEBEI YIPENG LINE EQUIPMENT MANUFACTURE CO., LTD is dedicated to providing exceptional customer service and technical support to ensure the satisfaction of its clients. Whether you're looking for a single clamp or a large-scale project, HEBEI YIPENG LINE EQUIPMENT MANUFACTURE CO., LTD has the expertise and resources to deliver the right solution for you.