The preformed tension clamp is a tension clamp with strong tensile force and simple operation. it could be used at the bare conductors and overhead insulated conductors of important and department distribution lines. its tensile force is better than the current generally used home the tension clamp, therefore, can update the tension clamps commonly used on the line, together with the bolt type.
The structure of the preformed strain clamp is simple, and its pre-twisted wire legs are twisted to form an empty tube, and the rear part is a pre-formed twisted ring. The empty tube formed by the legs of the pre-twisted wire can generate a strong grip when it is wound on the wire, and the twisted loop is used to fix the insulator. The unique principle and structure make this kind of wire tension clamp have unique performance and distinctive features.
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.
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