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yumeng zhao
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Sep 2, 2022
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Suspention clamp hangs conductor or ground wire. They work with the insulator of link fitting to tower arms or substation structures. The material of clamp is malleable iron or aluminum alloy. The suspension angle of suspension clamps is not less than 25 degree. The redius of curve is not less than 8 times the diameter of the installed leads. The percentage of the grip on different kinds of leads to the calculating capicity of snap meets the international standard.
The suspention clamp is a kind of fixed hardware. There are also two types of suspension hardware. They include tension fittings and limited grip hardware. The suspension clamp hangs or supports the conductors. They coould bear the vertical load hardware.
The suspension clamp is for overhead lines or substations. They can hang the conductors or arresters on the insulators. They could hang the arresters on the tower by the connectors as well. It also used for fixing and supporting the conductor and non-linear rod on the pole.
There are numorous kinds of suspension clamps. They can classify in different method. Here are three method to classify them. Here we will introduce three ways to classify them.
Some of the abbreviations as follow:
C(X) — suspension clamp,
G — fixed, S — double clamp,
U — U shaped screw,
J — strenghthened,
H — Aluminum Alloey,
F — anti-corona,
K — carried up type,
T — carry bag type,
A — with socket clevis eye,
B — with U-shaped clevis,
X — hang-down type
CGU Suspension Clamp
CGU suspension clamp is als called general type suspension clamp. You can customize your fixed u-shaped screw suspension clamp(CGU). All specifications are avaliable with the drawings porvided. All the products meets the international standards.
The materials
Clamp, plate: forging iron
Closed pin: stainless steel
Other parts: steel
Suspension clamp with U-shaped plate
Main usage and feature
The diameter of the wire clip slot is large. It is for large section steel-cored alumimum conductors or conductors wrapped. All the conductors have pre-twisted wire sheathed grommets. If you use the common hanging plate, it is easy to cause deformation. These are the two reasons the U-saphed hanging plate adds to the upper end of the wire hanging plate. The combinaton not only reduce the bending movement of the hanging plate but also change the direction.
Suspension clamp with socket clevis eye
Componants and materials
The material of the socket is forging iron.
The endfittings are stainless steel.
Other mateirals is steel.
All the componants are hot-dip galvanized zinc and are corrusion r.esistent.
Strenghthen suspension clamp — -CGJ Type
Here are some main features:
Clamps have high vertical devastating load;
The cable will not get out of the clamp even in the condition of unblanced icing on adjacent gears. This means the clmaps may have enough tensile strenghth;
For the clip of the lightning conductor, the grip strength should be no less than 25% of the rated steel strand tensile strength. The grip of the clip for the steel core aluminum stranded wire should be no less than 30% of the rated wire tensile strength.
Anticorona suspension clamp — — CFG Type
It is for 330kv — -500kv transmission line or high altitude transmission line. This kind of clamp have high anti-corona ability. The componetns of the anti-corona type includes a flared hull, two (or four) bolts (to fasten the boat hull) and the steel hoop of the suspension part. The steel hoop is in the middle of the hull, which also known as the suspension bar type.
Materials: clamp and plate — aluminum alloy; deadend link — stainless steel; spare parts — steel
This type of anti-corona suspension clip divides into two types: line and jumper. The jumper one also can use on substation and has weak grip.
Center swing suspension clamp
Main features:
The axis of the hull is above the centerline of the wire. The rotation coincides with the deflection of the wire.
Carried-up suspension clamp — CGF Type
Characteristics:
The hull axis lies below the centerline of the wire. The hull axis also has a tendency to be unstable, and its rotation often exceeds the deflection of the wire.
Function:
It is for the overhead ground wire placed on the top of the tower, and when the split wire arranges on the bar.
Hang-down suspension clamp — -CGF Type
Material:
clamp and plate — ZL102 aluminum alloy; deadend link — — stainless steel; spare parts — steel
Carried bag type suspension clamp
Material:
clamp and plate — ZL102 aluminum alloy; deadend link — — stainless steel; spare parts — steel
Aluminum alloy suspension clamp
Features:
high strength,
strong corrosion resistance,
low hysteresis loss,
low energy consumption and
energy saving.
It is also benefit to control the generation of corona. It is for 330kv to 500kv transmission line. This kind of calmp need to meet the standard of the corona production in the high altitude area.
It is for 220kV lines to replace the malleable cast iron lines, which has good economic benefits.
Steel plate punching suspension clamp
The hull of the wire clamp stamps from steel plate, without hanging plate. The hanging point is above the axis of the wire. The u-bolt is upware installed for convenient construction. The production process is simple with short cycle, high yield, light weight and few accessories. It is suitlable for steel-cored aluminum stranded wires and medium and small sections aluminum standed wire.
Melleable cast iron
The hull, plate and clevis is cast iron. The material of closd pin and other spare parts are steel. We use hot-dip galvanized technic for cast iron and steel.
What is hysteresis loss?
Because of the magnetic material in the AC iron core coil, hysteresis and eddy current can create in the alternating magnetic field. This may lead power loss and heat generation to the power loss of the coil resistance. The suspension clamp’s curvature radius should be at least 8 times the diameter of the installed wire.
If you interested us, our next passage is still about suspension clamp. We will introduce 7 other types of suspension clamp. Then demostrate how to choose a suitable suspension clamp.
When working on electrical and telecommunication installations, there are two key components that you cannot avoid.
These are cables and poles.
In most cases, the cables are usually hanged to the poles or even towers.
They are responsible for transmitting electricity or communication signals from one point to another.
So, what makes the cables or conductors hang so easily yet the whole process looks delicate and complex?
It is because of one tool: Suspension clamp.
Do you have plans of buying a clamp suspension?
Read on as we guide you on what you need to know about this product.
To start us off is the suspension clamp definition.
Also known as a suspension fitting, this is an accessory that is specially designed to hang the cables or even the conductors to the pole or even tower.
The clamp is specially constructed so that it is compatible with a wide range of cables and conductors.
Suspension clamp hangs the ABC cables through different angles hence giving them proper support and protection.
To help you understand better, here is a picture of a typical suspension clamp.
As you can see, there is nothing complex about it.
You only need to buy and use it.
We have already mentioned the primary function of suspension clamps.
But, it sounds so general, doesn’t it?
Probably, you are looking for the specific functions of suspension clamps.
Here are some specific functions of suspension clamps:
-Suspension clamps protect the conductor right at the installation load.
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-The clamps provide a safe and viable mechanical connection regardless of the condition. They achieve this by providing an adequate longitudinal grip control.
This means that the conductor can be released from the clamp only through defined slip loads hence preventing physical damage.
-Suspension clamps control the movement of the conductor. This provides protection against the vibrations that have been induced by strong winds.
Just knowing the physical appearance of a suspension clamp is not enough.
It is important that you go further and familiarize yourself with its components.
Here are the parts and components of a typical suspension clamp:
This is the part of the suspension clamp that is responsible for supporting the conductor.
The body is made of an aluminum alloy mainly due to the strength of the material.
It is hard and resistant to stress corrosion.
This is the part of the clamp that connects the conductor directly to the body.
These are parts of the suspension clamp that transfer load right from the axis of oscillation to the insulator string.
What type of material is used on the straps?
The straps mainly consist of a thick zinc coating.
The importance of this part comes into play when the clamping surface is not perpendicular.
Washers are made of stainless steel and are resistant to corrosion.
Obviously, you know the function of bolts and nuts in any mechanical device.
They are mainly used to complete connections.
Also, the bolts and nuts are made of stainless steel which is known for its strength
Sometimes they are known as the threaded bushing.
But, what role do they play in a suspension clamp?
They are basically fastener elements.
This simply means that they are inserted into an object to add a threaded hole.
Like other major parts of the suspension clamp, they are also made of stainless steel.
What does the design requirement of a suspension clamp entail?
It ensures that there is proper coordination between the physical and mechanical aspects of the suspension clamp.
Also, design requirements ensure that all parts are in their correct position.
This will facilitate the smooth operation of the suspension fitting.
-Anchor clamp
First, you should be able to move the anchor clamp which is next to the conductor freely.
To achieve this, ensure that the trunnion of the clamp is part and parcel of the body.
-Conductor supporting groove
When buying suspension clamp, ensure that the conductor supporting groove has the right measurements.
Check the measurements as indicated by the suspension clamp manufacturer.
The body and the keeper should not have sharp edges or any form of irregularities.
-The design of the straps
When buying a suspension clamp for overhead, try to check the design of the strap.
Ensure that they are round and their sizes match directly with that of the trunnion.
-Designs for bolts and nuts
Although they may look small, they also have strict design requirements,
When buying a suspension clamp or even aerial cable clamp, check for the positioning of the bolts and nuts.
Ensure that they are well attached to the clamp.
They should be well attached to prevent them from dropping when the clamp is in operation.
When it comes to the design ensure that the bot can protrude outside through the thread.
When you hear the word ‘mechanical’, what comes into your mind?
To most of us, we think of the machines and how they operate.
Well, in this context, the mechanical requirement is all about the operation of a suspension clamp.
So, what are these requirements?
First, a suspension clamp should be able to withstand the deformation load without showing any signs of getting damaged.
This is a requirement that should be fulfilled even if the conductor turns at 30 degrees.
Also, the clamp should be able to withstand the bolts and nuts regardless of how tight they may be.
Do you know that there are different variants of a suspension clamp?
In other words, there is no universal suspension clamp.
Instead, you can buy suspension clamps that have a set of particular specifications that will fully meet your needs.
In most cases, each variant is designed for a specific cable.
Here are the most common types of suspension clamps:
-Suspension clamp for ABC cable
-Suspension clamp for opgw
-AGS suspension clamp
-Suspension clamp for ADSS cable
-Double suspension clamp
– Preformed suspension clamps
-Cable suspension clamp u-type
So, which type of suspension clamp do you think will meet your specific needs?
Do you want to buy the best suspension clamp?
Start by looking for reliable suspension clamp manufacturers.
They will help you to find and choose the right suspension clamp.
At Rax Industry, we have been manufacturing and selling high-quality suspension clamps.
Call us whenever you need the best suspension clamps.
suspension clamp is also called clamp suspension or suspension fitting, it is a general speaking of all kinds of clamps that hang the conductors or cables to the pole or tower.
Here are the components of a typical suspension clamp:
Here are the most common types of suspension clamps:
Contact us to discuss your requirements of china short span suspension clamp. Our experienced sales team can help you identify the options that best suit your needs.