What is the purpose of a strain clamp?

Product Description

The Strain Clamps are designed to secure conductors and ground wires with insulators or link fittings to tower arms and substation structures. It is mainly used in applications involving distribution or transmission lines. U bolts, nuts, and washers are required to fix the conductors to the body. The additional special liners or armor tape provides protection for the conductor from subsequent damages.

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First of all, Strain Clamps has several other names: tension clamp, strain clamp, dead-end clamp.

The strain clamp refers to the hardware used to fix the wire to withstand the tension of the wire and hang the wire to the strain string or the tower.

According to different structures and installation conditions, strain clamps can be roughly divided into two categories.

1. The tension clamp must withstand the full tension of the wire or lightning conductor, and the grip strength of the clamp is not less than 90% of the rated tensile strength of the installed wire or lightning conductor, but it is not used as a conductor.

This type of clamp can be removed after the wire is installed and used separately. This kind of clamp has bolt-type tension clamp and wedge-type tension clamp.

2. In addition to bearing the full tension of the wire or lightning protection wire, the tension clamp also acts as a conductor.

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Therefore, once this type of clamp is installed, it cannot be disassembled, which is also called a dead line clamp.

Because it is a electrical conductor, the installation of the wire clamp must be carried out carefully in accordance with the relevant installation rules.

Tension clamps are used for corners, splices, and terminal connections.

Spiral aluminum clad steel wire has extremely strong tensile strength, no concentrated stress, and protects the optical cable and assists in damping vibration.

The complete set of optical cable tensile hardware includes: tensile pre-twisted wire and matching connecting hardware.

The grip strength of the clamp is not less than 95% of the rated tensile strength of the optical cable, which is convenient and quick to install, which reduces the construction cost.

It is suitable for ADSS optical cable line with span ≤100m and line turning angle <25°.

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