Strain Clamp

Your Professional Strain Clamp Supplier

Our goal is to become your true partner in the field of downline clamp in China. Shandong Fuhua Electric Power Equipment Co., Ltd. is a new enterprise integrating scientific research, development, production and sales. It mainly produces OPGW, ADSS, OPPC optical cables and supporting hardware series. Our company is committed to applying advanced manufacturing technology and strict quality control standards to every product. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

UB Clevis
UB clevis is an important component used to connect overhead wire and insulator string, widely used in the power system, to transfer mechanical load, electrical load and protection.
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Prestranded Single-layer Tensioning Clamp
Inner twisted wire, outer twisted wire, embedded ring, PD hanging plate, U-shaped hanging ring, etc.
(Note: the tensioning clamp with a small distance of 100 meters and 200 meters is...
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Prestranded Double Tensioning Clamp
Pretwisted double tensioning wire clip is a kind of wire clip composed of pretwisted spiral pretwisted wire, which has the characteristics of high strength, corrosion resistance and easy installation.
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Pretwisted Tensioning Clamp
Pretwisted tensioning clamp is a kind of golden tool used in line erection, mainly used to connect optical cable or wire and tower, with the function of protecting optical cable, improving seismic...
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Cable Prestranded Protection Bar
Cable prestranded protection bar is a device used to protect optical cable, mainly used in overhead optical cable lines, to enhance the tensile strength and vibration resistance of optical cable.
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Pre-twisted Clamp Crimping Ring
The Pre-twisted clamp crimping ring is a key component used to fix the cable and the hardware to ensure that the cable remains stable under tension.
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Optical Cable Tensioning Hardware
Optical cable tensioning hardware is key devices used for fixing and protecting optical cables, capable of withstanding the tensile force on the optical cable under tension to ensure the safe and...
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Overhead Tensioning Clamp
Overhead tensioning clamp is a key component used to withstand the tension of wires or overhead ground wires in power transmission lines. It is usually installed on the frame of tensile tower,...
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Cable Tension String
The main function of the optical Cable tension string is to effectively isolate the live conductor from the ground, maintain the position of the optical cable, prevent electrical accidents, and...
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Insulated Tensioning Clamp
Insulated tensioning clamp is a key component used to secure and support wires or optical cables in overhead lines, while providing electrical insulation to ensure safe line operation.
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Stretchable Gold String
The Stretchable gold string is an important component in electric power transmission lines, mainly used for fixing and supporting conductors to ensure the stability and safety of the line.
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Why Choose Us

Product Application

Our company mainly produces optical cables, wire clamps, connector boxes, etc. These products are mainly used in power communication, community renovation, national power grid, factory construction and other industries.

Our Service

We provide 7*24 hotline service to answer technical questions, complaints, consultations and solutions, etc., and provide users with online services through hotlines, instant messaging, EMAIL and other methods.

Our Certification

Our company's quality system has passed ISO quality system certification and ISO14001 environmental management system certification.

Our Equipment

The company has advanced production equipment, such as grinders, twisting machines, bending machines, shearing machines, pre-twisted wire forming machines, ultrasonic cleaning equipment, punching machines, etc.

Advantages of Strain Clamp

Secure And Reliable Conductor Support: Strain clamps play a crucial role in providing secure and reliable support for overhead conductors. They are specifically designed to grip and hold the conductors in position, preventing sagging, vibrations, and potential damage.

Mechanical Strength And Durability: Strain clamps are manufactured using high-quality materials, typically aluminum alloy or steel, which offer excellent mechanical strength and durability. These robust materials ensure that the strain clamps can withstand the extreme tension and forces that occur during the operation of power lines.

Versatile Design And Installation: Strain clamps are available in a range of designs and sizes to accommodate different conductor types and sizes. They have a versatile construction that allows for easy installation and adjustment, ensuring compatibility with various power line configurations.

Enhanced Safety Measures: The design of strain clamps prioritizes safety and reliability. They incorporate features such as anti-loosening mechanisms, locking designs, and high-tensile steel bolts to ensure a secure grip on the conductor.

Wide Range Of Applications: Strain clamps find extensive applications in electrical power systems, including power transmission and distribution networks, substation installations, and overhead line construction. They are used to support conductors at various critical points, such as suspension points, angles, or changes in direction.

Specifications of Strain Clamp

S/N	DETAILS		UNITS	DATA
1.	Conductor Size		mm2	50
2.	Overall Dimensions.		mm	ZAM-GEN-DM-08-E-12093
3.	Material	Clamp:		Cast steel hot dip galvanised
3.	Material	Bolts:		Galvanised Steel
4.	Corrosion specification			Hot dip galvanised as per SABS 763
5.	Minimum failing load		kN	70
6.	Operating ambient Temperature		°C	-1 To 40
7.	Relative Humidity		%	85

Types of Strain Clamp

Suspension Strain Clamp: Suspension strain clamps are used to support and secure overhead cables in vertical or near-vertical configurations. They are typically used in overhead power line and telecommunication applications. Suspension clamps can be further categorized into compression-type and wedge-type clamps.

Dead-end Strain Clamp: Dead-end strain clamps are designed to anchor or terminate cables at the end of a run or at intermediate points. They prevent the cable from slipping or coming loose. These clamps are commonly used in applications where the cable needs to be anchored securely.

Vibration Damper Strain Clamp: Vibration damper strain clamps are used in applications where cables are subjected to wind-induced vibration. These clamps help reduce cable vibrations, which can extend the cable's lifespan and reduce wear and tear on the supporting structures.

Suspension Set Strain Clamp: Suspension set strain clamps are designed to support bundled cables, which are often used in high-voltage transmission lines. They provide a secure attachment point for the bundled cables, preventing sagging and maintaining proper tension.

Parallel Groove Clamp: Parallel groove clamps are used to join or splice overhead conductors while maintaining electrical continuity. They are commonly used in electrical distribution and transmission systems.

U-bolt Strain Clamp: U-bolt strain clamps, as the name suggests, have a u-shaped design. They are used to secure cables to various types of supports, such as poles or brackets. U-bolt clamps are versatile and come in various sizes to accommodate different cable diameters.

Bolted Strain Clamp: Bolted strain clamps use bolts to secure cables or wires in place. They provide a high level of mechanical strength and are often used in critical applications where reliability is paramount.

Saddle-type Strain Clamp: Saddle-type strain clamps have a saddle-shaped design and are used to secure cables to a support structure, such as a pole or tower. They distribute the clamping force evenly across the cable.

Application of Strain Clamp

Tension clamps are used for corners, splices, and terminal connections. Spiral aluminum clad steel wire has extremely strong tensile strength, no concentrated stress, and protects the optical cable and assists in damping vibration.

The complete set of optical cable tensile hardware includes: tensile pre-twisted wire and matching connecting hardware. The grip strength of the clamp is not less than 95% of the rated tensile strength of the optical cable, which is convenient and quick to install, which reduces the construction cost. It is suitable for ADSS optical cable line with span ≤100m and line turning angle <25°.

Strain Clamp Material

Pre-twisted wire: High strength galvanized steel wire or stainless steel wire, corrosion resistance, high tensile strength. Clamp ring: aluminum alloy or stainless steel, corrosion resistance, high strength.

Precautions for Use Strain Clamp

Use special tools to avoid damaging the cable. Ensure that the prestrand is evenly wound to avoid local stress concentration. Check regularly to ensure long-term stability.

Prestranded Single-layer Tensioning Clamp

Production Process of Strain Clamp

Design And Engineering: The process begins with the design phase, where engineers create specifications and drawings based on the application requirements and industry standards.

Material Sourcing: After finalizing the design, the required materials are sourced. Quality control measures are implemented to ensure that materials meet specific industry standards.

Machining: The selected materials undergo machining processes such as cutting, drilling, and shaping. Precision is crucial in this stage to ensure that each component fits perfectly.

Heat Treatment: For steel components, heat treatment processes like tempering or hardening May be applied to enhance strength and ductility. This step is essential for ensuring the clamp can withstand tension and stress.

Surface treatment

To improve corrosion resistance, strain clamps often undergo surface treatments. Techniques such as galvanization, anodizing, or powder coating are commonly used to protect against environmental degradation.

Assembly

After all components are machined and treated, they are assembled. This step involves the installation of any necessary insulators and hardware to complete the clamp.

Quality control

Rigorous testing is conducted to ensure that the strain clamps meet the required specifications and performance standards. This May include tensile testing, electrical testing, and visual inspections.

Packaging and Shipping of Strain Clamp

Packing	Wooden case
Shipping	Shipped by road, sea, rail or air

FAQ

Q: What is a strain clamp?

A: The Strain Clamps are designed to secure conductors and ground wires with insulators or link fittings to tower arms and substation structures. It is mainly used in applications involving distribution or transmission lines. U bolts, nuts, and washers are required to fix the conductors to the body.

Q: What does a strain relief clamp do?

A: Strain relief components protect electrical cables from tension and stress to prevent the connection from breaking. Strain relief is often built in at the base of the connector. It looks like a sleeve over the cable with segments that allow for limited movement to prevent damage.

Q: What is the difference between a clamp and a cramp?

A: A clamp is used to hold work, which has been jointed in place whilst the glue sets, whereas a cramp not only holds the joint but also allows pressure to be applied.

Q: What is a stretching clamp used for?

A: Screen printing mesh stretching clamp is used for fixing screen frame when it is printing, The stretching clamps are durable cast aluminum clamps for fastening the aluminum frames. Durable and rust-resistant. In order to secure your screen frame to a table or work surface.

Q: How does clamping work?

A: Clamping technology is known as the fixing of a workpiece or a tool with which a workpiece can then be machined. The clamping device should clamp the workpiece rigidly in place, i.e. as vibration-free as possible without deforming it.

Q: What are 3 way clamps used for?

A: The 3-way clamp is used to brace and support upright and header suspensions. Comes with tightening bolt and lock nut. Made in 2 halves that clamp around pipe or tubing. Includes hole for added safety.

We're well-known as one of the leading strain clamp manufacturers in China. Please feel free to buy high quality strain clamp made in China here from our factory. For customized service, contact us now.

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