Key Points For Insulator Installation In Power Transmission Systems

In some overhead line or distribution cabinet designs, wire clamps are used to fix the position of the conductors. If the contact point between the clamp and dead end insulators is not handled properly, physical scratches or indentations may be caused to the insulation layer of the wire during the clamping process. Such mechanical damage will weaken the local insulation performance and may lead to a decrease in insulation strength.

In overhead sections of transmission lines, selecting clamps with smooth surfaces and reasonable pressure distribution on the conductors can reduce the risk of friction and scratches on the outer layer of the conductors.

Regularly include dead end suspension insulators and connecting accessories in the inspection plan. By checking the condition of their insulation surface and fastener contact marks, it is helpful to detect early signs of external force damage.