What You Need to Know About Suspension Clamp

 

What Is a Suspension Clamp?

 

An internal suspension clamp is a piece of electronic equipment used for hanging cables or conductors connected to a pole. Additionally, they are also used in suspending cables to electronic towers.

Another role of steel suspension clamps is to guard the conductor while the transmission line is installed on the pole. It also gives a solid connection by assuring an appropriate amount of longitudinal grip on the transmission line. Finally, they prevent the cables from moving too much due to winds and storms.

 

Components of steel suspension clamps

 

If you were to look at it from afar, you would think that it is only one huge component, but this is not true. Multiple components make it up, which are the following:

 

1. The Body

 

This is the largest part, and the first one people usually see when they first look at one. The body is the overall framework that supports the clamp to the conductor. It is usually resistant to scratches and rust since it is made of an aluminum alloy, making it very sturdy.

 

2. Keeper

 

This specific part of the clamp is important as it connects the conductor of the transmission line to the body.

 

3. The Straps

 

These are the thin string-like components of the clamps. They must transfer the load from the oscillation axis to the insulator string. These parts are sturdy because their body is made of coated zinc materials.

 

4. Washers

 

The washers are usually used when the clamping surface is not positioned perpendicularly. Their build is made of steel, so they have the appropriate strength and resistance to corrosion.

 

5. Bolts and Nuts

 

With the clamp being a mechanical device, it would also need nuts and bolts to be all secure. Any connection made within it is made possible by the nuts and bolts. These are made of steel, so they are naturally sturdy.

 

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FTTX Optical Fiber Network Construction Solution

 

 

6. Threaded Inserts

 

These are parts of the internal suspension clamp that are simply the ones that fasten the threads together. Also, these are inserted where there are threaded holes in the component. Their innate sturdiness comes from their material which is stainless steel.

 

 

What are suspension clamps used for?

 

Their primary role is to hang or suspend a conductor. However, it is not possible that this is the only part it plays in electrical towers. They also give a mechanical connection to the transmission line by providing a good longitudinal grip. Also, they prevent cables from moving.

With these uses listed, it is not hard to see that these clamps are used in projects that include conductors hanging from poles. Their most common applications are in telephone transmission lines and electrical pole lines.

 

Mechanical Requirements of internal suspension clamp

 

These mechanical requirements define how they are supposed to be operated. Usually, these items are supposed to be sturdy enough to sustain deformation load without physical deformation or snapping. Additionally, the clamp should be able to sustain the force coming from its nuts and bolts.




What are the different types of Suspension Clamp?

 

There are different types of clamps, all with specific sizes and unique uses.

 

Single and Double Conductor Suspension Set

 

This type disperses the stress to the preformed rod of the clamp. It greatly minimizes the static and dynamic pressure of the cable or conductor. The effectiveness of the dispersion of stress greatly increases the durability of the conductor.

 

Double Suspension Set for OPGW Cable

 

Like its name, this type connects OPGW cables and poles. The clamp heavily reduces the stress on the OPGW cable at its support points. Additionally, this type reduces cable bending, so there isn’t extra loss after installation.

 

Single Suspension Set for OPGW Cable

 

Another moniker for this type is the helical suspension set. It is often utilized to hang fiber cables onto straight towers or poles.

 

Double Suspension Clamp

 

This steel suspension clamp reduces static pressure at ADSS’s support points. Also, it protects the conductor from the dynamic stress of Aeolian vibration.

 

Midspan/Long Span Clamp for ADSS cable

 

Like the double variant, the long one protects the ADSS fiber cable to operate normally and safely under unbalanced load conditions. This type is made out of high-strength aluminum alloy.

 

 

Is there a suspension clamp for overhead lines?

 

There are some made for overhead lines. These clamps are used for the installation and the suspension of fiber cables at straight angles. Usually, the bodies of these clamps are made from hot-dipped galvanized steel with a stainless ring at the hook at the edge of the component.

Read more about ： What are the Fiber Optic Series

 

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