What is a Cable Tension Clamp?
What is a tension cable clamp? A cable tension clamp is a type of tension hardware used to complete the tensional connectivity of a conductor or cable. It provides mechanical support for both the insulator and the conductor, ensuring the cable stays secure in position during installation and operation.
Tension clamps are widely used to connect overhead lines to optical equipment, utility poles, or building surfaces. They vary in body material, clamp loop size, and cable compatibility. Most are made from stainless steel for durability, while some lightweight versions are made from plastic.
A correctly installed cable tension clamp ensures the fiber or cable is held firmly, preventing breakage and improving installation efficiency during fiber optic cable deployment.
Why Use Cable Tension Clamps?
-
Provides strong mechanical support for fiber optic or ADSS cables.
-
Prevents bending damage during installation.
-
Weather-resistant for long-term outdoor use.
-
Increases installation speed and efficiency for both overhead and underground projects.
During cable laying, strain clamps should be used to hold cables together and in place at critical points. The main parameters to consider are:
-
Cable diameter to be clamped.
-
Maximum allowable tension.
8 Types of Cable Tension Clamps (with Selection Guide)
Hanger Feeder Clamp
This hanger feeder clamp is composed of stainless steel and will last a long time.
Hanger Feeder Clamp can be used in anchoring, turning, suspension fiber optic cable routes. Used for 3-7 mm diameter round drop cable.
 |
 |
S-hook Tension Clamp
S-hook tension clamp can be used on buildings, poles, strand with drive hooks, pole brackets, state steel hooks and other drop wire fittings and hardware.
It is suitable for overhead short-distance drop optical cables. Used for 2 to 8 mm thickness of drop wire. And widely used in indoor installation and outdoor installation.
 |
 |
Plastic Wire Clamp
Plastic wire clamp is for drop fiber cable and designed to fix and keep the tensile state of fiber. Usually, the fiber laying around the electric transmission line or laying on a building whose space is less than 50 m. Plastic wire clamp is designed to use for cables with a height of 4 mm and a width of 8 mm. The clamp securely holds the flat cable.
 |
 |
Aluminum Tension Clamp
This kind of drop cable tension clamp is suitable for drive hook, rod mount, or other accessories. Used for 2-6 mm diameter drop cable on short spans (max 150m) at intermediate poles on straight routes and choose the type according to the diameter of cable.
 |
 |
Stain Clamp
In aerial outdoor FTTH construction, the dr0p cable strain clamp is designed to anchor steel wire diameter up to 3 mm of FRP messenger of drop cable. Stain Clamps can be used on dead-end fiber network routes.
 |
 |
Figure 8 Cable Tension Clamp
The figure 8 cable tension clamp is designed for fast, easy and reliable termination of ADSS optic cables in access networks spanning up to 100m. A pair of wedges automatically clamps the cable inside the cone. Used for 3-7 mm diameter fiber cable.
 |
 |
Dead End Guy Grip Preformed Tension Clamp
The concrete configurations: For terminal pole/tower-one to one; for strain pole/tower and splicing pole/tower-two to one.
The feature of steel helical tension clamp—very high grip strength of up to 95% for the breaking load, the damage is small and it is not easy to loose.
Depends on inner rods and outer rods’ length, it is used for 7-27 mm diameter ADSS optic fiber cable.
 |
 |
Overhead Preformed Suspension Clamp
It is designed to connect straight or elevation angel less than 25° pole (tower) and ADSS cables. Double suspension clamp can be applied to large span length and large elevation angle of straight pole (tower).
Select the specification model for ADSS suspension clamp is corresponding to the appropriate cable diameter, load weight or span length.
 |
 |
J hook Suspension Clamp
Choose the type according to the diameter of ADSS cable. It is suitable for round cable.
The J hook suspension clamp is designed to provide a suspension for Ø8 to 20mm aerial ADSS cables at intermediate poles on cable routes with angle< 20° on access networks (spans up to 100m).
 |
 |
S Type Drop Wire Clamp with Hook
S type drop wire clamp with hook is designed for suspension or tension round or flat FTTH drop fiber optic cable or drop cable or telephone drop wires. FTTH clamp is applied outdoor on routes with short spans up to 80m and used for less than 5mm diameter cable.
 |
 |
How to choose cable tension clamps?
Drop optic cables: Hanger feeder clamp, S-hook tension clamp, plastic wire clamp, aluminum tension clamp, stain clamp, S type drop wire clamp with hook
ADSS fiber cables: Figure 8 cable tension clamp, dead-end guy grip preformed tension clamp, overhead preformed suspension clamp and J hook suspension clamp.
If there is more than 25° corner in the connection, it is better to use Hanger feeder clamp, S-hook tension clamp, plastic wire clamp, aluminum tension clamp, stain clamps, figure 8 cable or dead end guy grip preformed tension clamp.
If there is less than 25° corner or no corner in the connection, it is better to use overhead preformed suspension clamp, J hook suspension clamp or S type drop wire clamp with hook.
Conclusion
What are cable tension clamps? Choosing the right cable tension clamp ensures secure fiber optic installation, reduces cable damage, and extends network lifespan. Whether for FTTH drop cables or ADSS aerial cables, Baudcom offers a complete range of tension clamps designed for reliability, weather resistance, and long-term performance.
Contact Baudcom today for technical advice and product recommendations tailored to your fiber optic installation needs.
