Analysis Of The Role Of End Fittings In Insulator Structures

In transmission lines, each suspension composite insulator is equipped with a special metal connector at its end. These end fittings are responsible for securely connecting the composite suspension insulator to the tower or conductor system. Typically, end fittings consist of a head, a fixing part, and a rotatable connecting part.

The fixing part is connected to the polymer suspension insulator body by bolts or rivets, forming a stable mechanical connection point. The head is used to connect to external devices such as hooks, plates, or clamps. The central rotating part allows the head to rotate around the suspension type insulator axis, making the installation direction more flexible and adaptable to different connection requirements.

This end fitting structure facilitates installation. The rotating part allows for connection at different angles, eliminating the need to forcibly twist the entire composite tension insulator to accommodate the directional difference between the pile and the conductor. This structure reduces stress concentration caused by angular mismatch, helping to maintain the structural integrity of the connection.