Features Of Pre-twisted Fittings (strain Clamps)

Anchor Bracket, pre-twisted tension clamps, pre-twisted protective fittings and other pre-twisted fittings have been increasingly widely used in my country's power lines. The use of pre-twisted fittings has also greatly improved the reliability and economy of overhead lines. The main reason is that pre-twisted fittings have the following characteristics:

High strength

Taking the suspension clamp as an example, the pre-twisted suspension clamp has a larger contact area with the conductor, and its stress distribution is more uniform. The ability of the conductor to withstand stress has been greatly improved. Moreover, compared with the traditional suspension clamp, the grip of the pre-twisted suspension clamp can reach the maximum of the conductor breaking force, which greatly ensures the safety of the transmission line. It can be seen that the pre-twisted suspension clamp has a relatively large advantage in strength and grip compared with the traditional suspension clamp.

Reduce wear

Taking the pre-twisted suspension clamp as an example, the pre-twisted suspension clamp can hold the wire tightly on both sides of the suspension point by protecting the wire, which can well prevent the wire from sliding. Therefore, the use of the pre-twisted suspension clamp can reduce the dynamic stress of the wire caused by vibration. As we all know, the repeated torsion of the conductor can cause fatigue of the conductor material and cause the damage of wire breakage and strand breakage. Therefore, the use of the pre-twisted suspension clamp can reduce the wear of the conductor and the ground wire, thereby protecting the conductor and the ground wire. In addition, the pre-twisted suspension clamp is light in weight and has high cutting strength, which is more suitable for use in areas with severe ice coverage and areas with large line spans.

Long life and good electrical performance

The pre-twisted wire of the pre-twisted suspension clamp is made of the same material as the conductor, which has better performance in elasticity and hardness, and has the same corrosion resistance as the conductor, so that the pre-twisted suspension clamp has a longer service life and saves the trouble of frequent maintenance.

At the same time, after the two ends of the pre-twisted suspension clamp are rounded, the corona hazard caused by the discharge can be avoided, which greatly protects the service life of the power fittings, reduces the hysteresis consumption and reduces the generation of corona, and its electrical performance is guaranteed.

Pre-twisted fittings also have the characteristics of easy installation and reliable operation. In addition, the pre-twisted suspension clamp uses high-strength metal to make the wire protection line, which has very good elasticity and toughness, and its anti-aging and anti-loosening properties are greatly guaranteed.