Armor Grip Suspension, Preformed Line Product ...

Author: Evelyn y

May. 13, 2024

Armor Grip Suspension, Preformed Line Product ...

Armor Grip Suspension: The Complete Guide

Armor grip suspension is a unique accessory that is very important for all your telecommunications and electrical needs.

Contact us to discuss your requirements of preformed suspension clamp set for adss manufacturers. Our experienced sales team can help you identify the options that best suit your needs.

You need to buy high quality and reliable armor grip suspension for efficient and uninterrupted transmission.

In this guide, I will make that process simple and easy for you.

Here, I am going to walk you through basic definition, main components, installation procedures, and technical specifications, among other important aspects.

I want to make it easier for you to choose and buy the right armor grip suspension.

Let’s get started.

What is Armor Grip Suspension?

Do you know what this accessory looks like?

Here is what I am talking about:

 

Armor grip suspension

As in the picture above, an armor grip suspension is one of the many suspension clamps used for distribution or transmission systems.

It consists of preformed clamps, wires, nuts, and bolts.

Depending on the unique applications, you can find armor grip suspension made from galvanized iron or steel.

It is also called a preformed suspension clamp or AGS suspension clamp.

They come in unique designs and sizes.

This is always dependent on your application needs.

All you need is to get a reliable manufacturer who can make an armor grip suspension for your needs.

Why You Need Armor Grip Suspension

As I said earlier, armor grip suspension plays an important role in telecommunication and electricity systems.

So, here are some of the main reasons why you need this accessory.

1. It is an Important Accessory for Line Repair Purposes

In situations where conductors have been damaged by bolting clamps, a preformed armor grip suspension can be used for repairs.

Armor grip suspensions can be installed over preformed armor rods.

This restores and extends the lifespan of conductors.

2. Armor Grip Suspension Plays a Crucial Roles in Line Angles

Experts recommend that the best angle for single support AGS is 30 degrees.

That is why the armor grip suspension, double assembly is best for angles between 30 degrees and 60 degrees.

Armor grip suspensions can be used for:

  • ACSR conductors
  • Copper conductors
  • Fir ACC
  • Galvanized steel conductors
  • SC/AC conductors
  • AAAC

They can also be divided into single or double AGS suspensions.

Preformed armor grip suspension units are designed for use on various types of materials and conductor constructions.

This unit is also designed to lessen static and dynamic stress at support points.

It ensures that conductors are safeguarded against conduction motion effects.

It works by protecting conductors in support areas against power flash-over and impulse arching.

When you compare them to normal suspension clamps, preformed armor grip suspension units are superior to bolted types.

Of course, this is when it comes to safeguarding conductors from compression and bending abrasion or stress.

To have corona onset and RIV specifications met for most extra high voltage apps, you should use these products.

How to choose for different spans?

Less than 100m spans: choose a preformed suspension clamp without an inner armor grip. The rubber wraps the ADSS cable directly, the aluminum clad connect the U clevis to hang up the ADSS cable.

100-200m span: suspension clamp assembly consists of inner armor grip, rubber, aluminum clad, bolt and nut. The vertical grip strength is 30kn. The inner armor grip wraps the ADSS cable to reduce the static and dynamic stresses at the support point so that the conductor is protected against the effects of conductor motion.

200-800m span: The difference with 100-200m span is the suspension clamp assembly added outer armor grip. The big touching space between the Armor grip suspension and ADSS cable will reduce the dynamic stresses at the support point.

You can review the summary of this explanation in the table below:

SpanLess than 100m100-200m200-800msuspension clamp assemblyAluminum clad, rubber, bolt, and nutinner armor grip, rubber, aluminum clad, bolt and nutinner armor grip, outer armor grip, rubber, aluminum clad, bolt and nutvertical grip strength10kn30kn70knCable typeADSSADSSADSS

Main Component of Armor Grip Suspension

Some of the main components of the armor grip suspensions include the following:

Components of armor grip suspension

  • Bolt – it’s made from galvanized steel
  • Lock nut – it’s made from galvanized steel
  • Washer – galvanized steel is a popular material for this component
  • Strap – its main component is galvanized steels for conductor diameter 6.7 – 12.7mm range. However, for high strength aluminum alloys for conductor diameters 12.24-56.7mm range.
  • Rods – its main component is aluminum alloy for CSR diameter angles 12.24 – 56.711mm, galvanized steel for galvanized steel strands diameter 6.9 – 2.7mm, aluminum clad steel for ACSR diameter angles 12.24 – 56.7mm, and aluminum clad steel for Aluwoweld strand diameter angles 6.7-12.7mm.

Its standard armor rods have dimensions that are unique from AGS rods and that cannot be replaced.

  • Housing; the main material is galvanized steel stamping – for cable diameter ranges 6.9 – 127 mm. For high strength aluminum alloy casting for conductor diameter ranging from 12.24mm to 56.7mm.
  • Insert – An elastomer is uniquely designed for ozone attack; excessively high and low-temperature differences, weathering, and compression set resistance.

Installing Armor Grip Suspension on Pole Line

You need to follow the right procedures when installing armor grip suspension.

Although this process is not complicated, you need to get it straight so that you can complete it and see its maximum use.

  1. Start by plumbing insulator strings and have conductors marked at its sheave center. You can make use of a felt pen. Make sure you never scratch the conductor.
  2. Lift the conductor beyond the rod ends to permit the right application clearance.
  3. Ensure AGS neoprene center marks align. The inserts made with a center mark on the conductor and have a thin layer of tape used to hold it in its place.
  4. Have AGS rod centered on insert. Make sure the right amount of rod length is applied. This is important to ensure it stays on the conductor. Make sure rods aren’t distorted.
  5. Apply the single rod carefully. The rod’s curvature should follow the neoprene insert’s contour. Be sure that there is no space between the insert and the rod.
  6. Have all excess rods applied evenly around neoprene inserts. Ensure no rods are crossed. Each rod can be totally applied or, all rods can be fixed incompletely.
  7. Have the AGS housing’s two halves on either side of the center assembly. Then have the AGS strap slid into its position and with your hand’s heel, firmly tape it into place.
  8. Have the housing’s ears spread and the strap tapped back into place. This will ensure holes are aligned in order to have bolts easily aligned.
  9. Have nuts tightened until the lock washer (become approximately flat). Make sure you do not over tighten the nut. Also, try not to have the ears squeezed against the fitting.

Section of armor grip suspension

During the installation process, please pay attention to the following:

  • Compatibility of conductor

Armor grip support must be utilized only on the type and size of conductors they are made for.

It is designed for right-hand lay conductors.

Armor Grip Suspension Technical Specifications

Below are some of the main technical specifications of armor grip suspension you need to look for:

Armor grip suspension side view

  • Type of Material – Galvanized steel, aluminum alloy, and aluminum clad steel.
  • Diameter Range – Diameter ranges always differ. You need to choose depending on the project at hand and your needs.
  • Number rods – the number of rods depends on the design and type of armor suspension grip.
  • Rod dimensions –Rod dimensions also vary. However, it should always be in line with the armor grip suspension unit size you decide to use.
  • Color code – It indicates conductor diameter ranges. Color mark identifies starting locations and rod centers during the process of installation.

Precautions when Handling Armor Grip Suspension

In handling armor grip suspensions, below are some precautions you must take:

Armor grip

i. Armor grip suspension units are designed for aluminum and galvanized steel conductors.

ii. Make sure you never have rods, modified or reused no matter what.

iii. Only trained persons should install armor grip suspension

iv. You must be cautious when using armor grip suspension on energized lines. This is to prevent possible electrocution.

v. Handle and store armor grip suspension as per the manufacturer’s instructions

vi. These rods are matched by factory standards so make sure they aren’t intermixed from unique sets.

vii. Check the rod alignment during installation

FAQs on Armor Grip Suspension

Below are some of the most common questions people ask me every day:

How to choose the different armor grip suspension for my installation?

There are differences between armor grip suspensions for OPGW and ADSS. Mostly, OPGW types have more strength when they grip.

How to know the right size of armor grip for my project?

It will depend on your specific applications. However, I recommend that you consult an expert to get the right armor grip suspension.

Can I find low grade armor grips on the market?

Yes, with the availability of the internet it is easy to search for and find any grade of this product. However, if you want high-quality armor grip suspension, you should contact the factory directly. They control the quality well.

Does armor grip suspension require any special installation method?

As you can see from this guide, it is a simple process. However, if you have no idea of how it is done try to call in an expert, do not install it without prior knowledge.

Can I reuse my armor grip suspension?

You should use armor grip only once and for special applications as the manufacturer recommends. Nonetheless, other components apart from the rod can be reused if their condition is good.

What should I do if my armor grip suspension can not fit properly?

There are so many reasons for that – ranging from buying low quality to inappropriate accessories.

You can call an expert or the manufacturer.

It is an easier way of sorting this problem: Always use the manual or instructions the armor grip suspension comes with.

Conclusion

From this guide, you can see an armor grip suspension is an important accessory.

Also, you have seen how the installation process is easy and straight forward.

You need to buy this accessory from the right manufacturer.

This way, you will get the right design, size, and one that meets the right quality specifications.

At Rax Industry, we are here to help you find the right armor grip suspension.

Talk to us today, and our team will be happy to help.

Suspension Clamp for Overhead Lines and Transmission Lines

Suspension Clamp Complete Buying Guide

Are you setting up an overhead transmission line or telephone line project? One of the pole line accessories that you may consider buying is the suspension clamp. Like most accessories, this fitting has a significant role that it plays.

Are you looking for quality and affordable suspension clamps for transmission line or telecommunication line?

Here is a perfect guide for you.

I am going to give you full guidance for choosing and buying the best suspension clamps. I will also guide you on how to choose reliable suspension clamp suppliers and manufacturers in China.

What is a Suspension Clamp?

A suspension clamp is a fitting that is designed for suspending or hanging cables or conductors to the pole. In other cases, the clamp can suspend cables to the tower.

Since the cable is directly connected to the conductor, its specifications need to match with that of the cable so as to create a perfect connection.

A suspension clamp hangs the cables at different points and angles depending on the requirements of the project.

What are the Uses and Applications of a Suspension Clamp?

While the primary use of suspension clamp is to suspend hang or suspend a conductor, there are other roles that it plays.

A suspension clamp protects the conductor during the installation of the transmission line onto the pole.

The clamp also provides a mechanical connection by ensuring that there the right longitudinal grip on the transmission line.

Suspension clamps also control the movement of cables against external forces such as wind and storm.

From the above listed uses, suspension clamp is applicable in different projects that have conductors hanging from poles.

The most common applications are electrical pole overhead lines and telephone transmission lines.

Parts and Components of Suspension Clamp

From a distance, you can easily assume that a suspension clamp is a single homogeneous accessory. The truth of the matter is a suspension clamp comprises of different parts which include:

1. The Body

The body is the supporting frame of a suspension clamp for the conductor. It supports the whole fitting.

The body is made of aluminium alloy which apart from being strong is also resistant to scratches and corrosion.

2. Keeper

The keeper of a suspension clamp plays the role of connecting the conductor of a transmission line to the body of the suspension clamp.

3. Straps

These are string-like structures that are responsible for transferring the load from the axis of oscillation straight to the insulator string.

These straps are capable of playing this role because they are made of coated zinc material.

4. Washers

The washers of a suspension clamp are usually put into use when the clamping surface is not rested perpendicularly.

They are made of steel to provide the necessary support while at the same time resist corrosion.

5. Bolts and Nuts

Since a suspension clamp is also a mechanical device, there will always be a need to secure all the connections.

If you want to learn more, please visit our website China OPGW hardware manufacturer.

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Revolutionizing Cable Management: Are Adss Accessories Essential?
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This is where the role of bolts and nuts come into play. Any connection that is made to a suspension clamp is completed using bolts and nuts.

Bolts and nuts are also made of steel for strength and resist corrosion.

6. Threaded Inserts

When you see threads or bushings on a device, the first thing that should come into your mind is the device needs to be fastened.

The threaded inserts of a suspension clamp are simply fastening elements. They are inserted to elements that have threaded holes to complete the connection.

Threaded inserts are also made of stainless steel.

Types of Suspension Clamps

Suspension clamps are versatile power line fittings. They are not all the same. They come in different models making them suitable in their respective areas of applications.

This simply means that a suspension clamp that designed for a particular use may not be suitable for another application.

Some are even cable-specific whereby they can only be used on specific types of conductors.

The most common types of suspension clamps include:

-AGS  suspension clamp

-Suspension clamp for ABC cable

-Suspension clamp for ADSS cable

-Suspension clamp for OPGW cable

-Suspension clamp for HT&LT cable

-Preformed suspension clamp

-Cable suspension clamp u-type

-Double suspension clamp

Which cable are you using on your overhead transmission line? From the above list, you should be able to identify the right suspension clamp for the job.

If you are not sure, feel free to invite a suspension clamp expert who can help you choose the right model.  Consultation with reliable suspension clamp manufacturers will also be helpful.

Design Requirements of Suspension Clamp

Apart from just worrying about the types of suspension clamps, you need to get into the outlook and functionalities of the clamp.

These two factors are defined by the design, mechanical and technical requirements of the pole line accessory.

A well-designed suspension clamp will ensure that there is a smooth coordination b with the cable and other components.

Some of the essential design aspects that you should focus on include:

-Anchor clamp: The anchor clamp, which is next to the conductor, should be able to move freely.

This design is achieved only if the trunnion of the clamp is part of the body.

-Design of straps: Before you buy a suspension clamp, ensure that its straps are round-shaped and their sizes match with the size of the trunnion.

-Conductor supporting groove: Ensure that the conductor supporting groove of a suspension clamp has the right measurements for your application.

On the other hand, the keeper should not have any sharp edges that can result in any irregularities.

-Bolts and Nuts: You should confirm the design requirements of bolts and nuts so that they can perfectly fit onto the suspension clamp when completing connections.

Ensure that the bolt of a suspension clamp can protrude through the threads.

Mechanical Requirements of Suspension Clamp

The mechanical requirements of the suspension clamp for the conductor define the operability of the suspension clamp.

How does a clamp operate or behave after it has finally been installed?

One of the most basic mechanical requirements is the suspension clamp should be able to withstand deformation load without snapping or undergoing physical damage.

Also, the clamp should sustain the force of bolts and nuts when they are being tightened.

 

Powertelcom-Suspension Clamp Manufacturer

Wondering where to buy quality suspension clamp for overhead lines?

The best answer is you should buy from reliable suspension clamp manufacturers and suppliers in China.

Reputable suspension clamp suppliers will do all that it takes to ensure that you get quality products.

You can also be sure of getting quality sales services from the best suppliers.

At Powertelcom, we are proud to be among the most-trusted suspension clamps suppliers in China.

If you would like to know more about suspension clamps for sale, take the step of contacting us directly. We will tell you everything that you should know about suspension clamps.

Frequently asked questions (FAQ)

What is a Suspension Clamp?

It is a transmission line hardware that is used for clamping cables and conductors to the insulator strings, poles, and even to the towers. The design and construction of the clamp can handle extreme loads of the insulators.

Why are suspension clamps used?

Suspension clamps provide the required mechanical support regardless of the condition of the conductor. They also control or restrict the movement of the conductor especially due to external forces such as wind and storm. The clamps also promote the safety of the conductor and people by preventing voltage leakage.

What are the types of suspension clamps?

 

The most common types of suspension clamps include:

-AGS suspension clamp

-Suspension clamp for ABC cable

-Suspension clamp for ADSS cable

-Suspension clamp for OPGW cable

-Suspension clamp for HT&LT cable

-Preformed suspension clamp

-Cable suspension clamp u-type

-Double suspension clamp

 

What are the parts of a suspension clamp?

The body forms the main component of the suspension clamp. It provides an attachment point for the conductor. The clamp has straps that transfer the load from the axis to the insulator strips. The washers provide support whenever the suspension clamp is attached perpendicularly. The nuts and bolts are used for completing connections.

What materials are used for suspension clamps?

All the materials for different components of the suspension clamp must be compatible with the conductor. Steel alloys and high-strength aluminum alloys are the two most common materials for the suspension clamp. Apart from the main clamping body, fasteners such as nuts and bolts are also made of corrosion-resistant steel.

ADSS Suspension Clamp

The base is attached by a rear hinge for quick and easy installation of ADSS cables Cushioned pad made of UV resistant neoprene sleeve insert to gently hold the ADSS cable in place Includes stainless steel bolts and locking washers for locking clamps

Product Description

 

ADSS Suspension Clamp

Suspension clamps are also called fixture suspension or suspension fittings. According to the application, the suspension clamps are divided into ABC optical cable suspension clamps, ADSS optical cable suspension clamps, and overhead line suspension clamps.

 

 

 

ADSS Optical Cable Suspension Clamp

Suspension cleats for ADSS cables are also known as prefabricated suspension cleats. Prefabricated catenary clamps that function the same as ordinary catenary clamps are designed to suspend conductors or ground wires in a vertical direction.

Huaneng prefabricated suspension clamps are suitable for high voltage above 220kv. Unique features of prefabricated suspension clips:

Effective protection of conductors
Avoiding Electricity Waste Due to Corona
easy installation
Prefabricated suspension clamps are designed to protect ADSS (All Dielectric Self Supporting) cables from sloshing caused by wind currents. Suspended clamps are widely used in transmission lines, towers or power distribution systems.

The distance between the two towers is called the span. For short spans, prefabricated suspension clamps with O-rings are often used. This kind of suspension clamp has the characteristics of lightest weight, convenient installation, and can protect ADSS optical cable more effectively.

For mid-span and long-span, there is also a prefabricated suspension clamp that is aluminum-clad. The Armor Clip Suspension connects with U-Clips to hang cables. Aluminum-clad suspension clamps support and protect ADSS fiber optic cables from bending damage.

According to the span, the short span adopts single suspension clamp, and the long span adopts double suspension clamp.

Composition: inner pre-twisted wire, the outer pre-twisted wire, rubber insert, cast aluminum shells, right-angle shackle, U-type shackle.

Purposes: supporting cable, make the ADSS hang on the tower.

Features:

a, stress on average, no concentration stress, protect cable better.

b, good dynamic stress. It can provide enough grip strength(14%RTS)

c, rubber clip block make abrasion low .

d. rounded end improve the corona voltage

e. excellent aluminum alloy improve the mechanical and resist-corrosion function, extend life.

Technical requirements: meet the DL / T 766-2003 ADSS with the preformed helical fittings technical requirements and test methods.

 

Applications

The preformed ADSS drape clamp is the connecting hardware for ADSS cables suspended from transmission line poles (towers). It reduces the static stresses at the support points, improves the vibration resistance of ADSS cables and buffers the dynamic stresses of wind vibration.

 

 

Ordering Information:

A. Choose the suitable XC suspension clamp according to the outer diameter, span, rated tension strength of ADSS cable etc. parameters

B. the quantity configuration: 1 set / line tower.

C. if the clamp need to install the corona coils and vibration damper, the inner performed wire need to prolong

D. clamp strength: 30KN, 50KN, 70KN etc.

 

Structure and materials.

Shell - Made of corrosion resistant cast aluminium alloy, good stability, good corrosion resistance and good mechanical properties.
Rubber inserts---Consisting of high-grade rubber and central reinforcement components, the rubber inserts are ozone resistant, chemical resistant, weather resistant, with high and low temperature performance, high strength and elasticity, and small compression deformation.

Bolts, flat washers, spring washers, nuts, split locks, disconnectors - standard parts for electricity.
Internal preformed bar --- customised aluminium alloy wire according to mechanical properties and chemical composition, with high tensile strength, hardness strength and excellent elasticity, strong rust resistance, can be used in bad weather long-term health) condition.

If you are interested in our products, please contact us.

China Preformed armor grip spiral cable suspension clamp for ADSS/OPGW Manufacture and Factory

Preformed armor grip spiral cable suspension clamp for ADSS/OPGW

Description
The wire suspension clamp is designed to connect ADSS cable to pole/tower in the straight line. They feature in handiness, ease, with certain load capacity to resist moving.
Aluminum Alloy Preformed Dead End Guy Grip with Insulation Coating(SNAL) is for fixing terminals of the ground wire of overhead lines.
The guy-grip dead end clamp for conductor can be applied to bear strain on overhead bared or insulated covered conductors in transmission & distribution lines.
It’s the substitutes of the traditional dead end clamps such as bolted type, compression type and wedge type.

Aluminum alloy dead end grip with insulation coating for telecom cable, insulator conductor, fiber cable, TV cable, Digital cable

The aluminum alloy dead end grip with insulation coating has the main function to fix a pole/tower the cables, conductors, strands, structures

The area of the loop always must be protect with a suitable thimble, pulley, insulator etc.
Material.
Ground wire for steel conductor; wire clamp is used for galvanized steel.
Aluminum-clad steel, good conductor ACSR, wire clamp is used for aluminum-clad steel wire.

 

Are you interested in learning more about china preformed tension clamp set for adss manufacturers? Contact us today to secure an expert consultation!

Related links:
How to choose the right spanning clamp?
4 Main Types of Insulator Used in Overhead Lines
Where to find quality ADSS fittings in UAE?
Top Tips for Installing Helical Rod Splices
Vibration Stabilizer: Tried and True vs. Innovative Solutions
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