Strain Clamp Preformed Tension

The preformed strain clamp is used to undergo full anxiety on the naked conductors and overhead insulated conductors in the energy transmission and distribution line, and connect the conductors to the stress tower, that could replace the traditional bolt-type stress clamp and compression kind strain clamps and wedge-shaped stress clamps.


  Contact Now
Product Details

The structure of the preformed strain clamp is straightforward, and its pre-twisted cord legs are twisted to form an empty tube, and the rear part is a pre-formed twisted ring. the empty tube shaped via the legs of the pre-twisted twine can generate a robust grip while it's far wound at the wire, and the twisted loop is used to restore the insulator. the unique precept and structure make this type of twine tension clamp have unique performance and special features.

detail.png

Structure composition and material description 

1. Non-twisted ring: standard form, suitable for small diameter wires;

Stranded ring: suitable for larger diameter wires

2. Color code: starting mark of installation

3. Label: Indicate the product model

4. Pre-twisted wire: aluminum-clad steel wire or galvanized steel wire

 

Sn

Model No.

Conductor range(mm)

1

DNL 2211

5.82

6.53

2

DNL 2212

6.55

7.34

3

DNL 2213

8.28

9.25

4

DNL 2214

9.26

10.39

5

DNL 2215

10.4

11.68

6

DNL 2216

11.69

13.11

7

DNL 2217

13.12

14.66

 

Features: 

a. There is a large contact area between the clamp and the wire, the stress distribution is even, there is no stress concentration point, and the achievable grip strength is not less than 95% of the stranded wire to calculate the breaking force.

b. The wire clamp is made of the same material as the wire and has good corrosion resistance.

c. The installation of the wire clamp is simple, no special tools are needed, and one person can complete it independently. The installation quality is consistent, and it is also convenient for inspection.

d. The pre-twisted tension clamp has good vibration resistance, which can better protect the wires and extend the life of the system.

e. It is applicable to wires of various cross-section sizes.

f. The direction of rotation of the clamp and the outer layer of the wire is the same, and the standard is right-handed. If left-handed is required, it should be indicated in the order contract.

 

Applicable notice: 

a. Choose the appropriate strain clamp according to the type of wire, and the pre-twisted strain clamps of different specifications cannot be replaced.

b. The pre-twisted tension clamp for the wire is a disposable product, and it must not be used repeatedly after it is under full tension.

c. This product is only suitable for installation by trained technicians.

d. This product is a precision device. In order to ensure correct installation, it should be stored in the packing box to prevent collision or heavy pressure during transportation to avoid deformation of the pre-crossed wire.

e. When working on live lines or nearby, you must pay special attention to prevent electric shock accidents.

 

 

 




Product form