Tension clamp, strain clamp, dead end clamp

Tension clamp, strain clamp, dead end clamp refers to the hardware used to fix a wire to withstand wire tension and hang the wire onto a tension string group or tower. Tension clamps can be roughly divided into two categories based on their structure and installation conditions. Type 1: The tension clamp shall withstand the full tensile force of the conductor or lightning conductor, and the grip force of the clamp shall not be less than 90% of the rated tensile strength of the installed conductor or lightning conductor, but shall not be used as a conductive body. This type of wire clamp can also be removed after the wire is installed and used separately. This type of wire clamp includes bolt type tension wire clamp and wedge type tension wire clamp. Type 2: Strain clamps not only bear the full tensile force of the conductor or lightning conductor, but also serve as conductive materials. Therefore, once installed, this type of wire clamp cannot be disassembled, also known as a dead wire clamp. As it is a conductive body, the installation of the wire clamp must be carried out carefully in accordance with the relevant installation and operation regulations.

Brief introduction

Strain clamps are used for corner, splicing, and terminal connections. Spiral aluminum clad steel wire has extremely strong tensile strength and no concentrated stress, providing protection and auxiliary vibration reduction for optical cables. The complete set of optical cable tension fittings includes: tension pre twisted wire and supporting connection fittings. The grip strength of the cable clamp is not less than 95% of the rated tensile strength of the optical cable, which is convenient and fast to install, reducing construction costs. Suitable for ADSS optical cable lines with span ≤ 100 meters and line angle<25 °

The tension clamp is used to fix the conductor or lightning conductor to the non linear tower tension insulator string, for anchoring purposes, and also for fixing the stay wire of the stay wire tower.

 

1、 Classified according to its purpose

Cable tension clamp

Low tension wedge type strain clamp for ADSS optical cables

Low tension strain clamp for ADSS optical cable

Medium and high tension strain clamps for ADSS optical cables

Strain clamp for OPGW optical cable

Double strain clamps for OPGW optical cables

Wire tension clamp

1. Pre twisted wire tension clamp:

Pre twisted wire tension clamp for steel core aluminum stranded wire

Pre twisted wire tension clamp for aluminum stranded wire

Pre twisted wire tension clamps for insulated conductors

2. Pre twisted ground wire tension clamp:

Pre twisted ground wire tension clamp for steel strand

Pre twisted ground wire tension clamp for aluminum clad steel stranded wire

3. Pre twisted stay wire tension clamp:

Pre twisted stay wire tension clamp for steel strand

2、 Classification by structure and installation method

1. Compression type tension clamp

2. Bolt type tension clamp