Overview:

The ground wire insulator consists of two parts: the insulator and the protective gap. The protective gap is formed by electrodes fixed to the insulator with bolts.

Ground wire insulators are used to support the ground wire in high-voltage overhead transmission lines. During normal operation of the line, the ground wire is insulated from the tower, reducing transmission energy loss and enabling ground wire carrier communication. When the ground wire voltage is set, gap discharge occurs, the ground wire connects with the tower, and various protective functions are activated.

Ground wire insulators can be categorized into suspension type and tension type based on their installation form and electrode structure, with mechanical and electrical failure load levels of 70kN and 100kN respectively.

The ground wire insulator upper and lower electrodes are pre-assembled before shipment, and the discharge gap is adjusted and secured according to design specifications, eliminating the need for on-site assembly.

Technical Standards:

JB 9680-1999 Insulating Wire Suspenders for Overhead Transmission Lines with High Voltage, Disc-Type Porcelain Insulators

Model Description:

XDP - Disc-type suspended porcelain insulator for high-voltage overhead transmission line insulated ground wire

The number following the “—” represents the mechanical breakdown load value, in kN.

C - Channel structure

N - electrode form, N indicates tension type (sagging type is not indicated).