What is the function of a power clamp in a power system?

1. What is a power clamp?

A power clamp, commonly known as a "clamp," is a fastening device used to secure an object (usually cylindrical) to a pole, tower, or column. Its core function is to provide an adjustable, detachable, and secure connection. It's essentially two flat iron pieces wrapped together.

As shown in the picture, this is a scenario where a power line is clamped.

Secure the clamp to the utility pole (cement or wooden pole) using bolts. Clamps come in various shapes, including semi-circular and round with raised sections, and can be composed of two, three, or four pieces. Tighten the bolts to secure the clamp, thus providing support.

Product specifications: It is hot-dip galvanized, suitable for long-term outdoor use, made of carbon steel, and offers high cost-performance.

2.How does it working?

Pole-mounted equipment installation: transformer installation, switchgear installation, surge arrester installation (fixing the surge arrester bracket to the pole); 

Guy wire fixing: clamps firmly fix angle steel or steel pipe crossarms to the pole. The crossarms are then used to install insulators and conductors. Alternatively, on poles with high stress, such as terminal poles and angle poles, clamps are used to fix the guy wire rings and install guy wires to balance the conductor tension.

Power clamps are a typical example of "small size, big power" in power systems. They have a simple structure, yet they are the cornerstone of the stability and safe operation of the entire power grid. From the utility poles in front of your house to ultra-high-voltage transmission towers spanning thousands of miles, countless power clamps silently play a vital role in securing and supporting them.