summary:

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

Ground wire insulators are used to support the ground wire in high-voltage overhead lines. When the line is operating normally, the ground wire is insulated from the iron tower, reducing transmission energy loss and enabling ground wire carrier communication; When the ground wire voltage is set, there is a gap discharge, and the ground wire is connected to the iron tower, playing various protective roles.

Ground wire insulators can be divided into suspension type and tension type according to their installation form and electrode structure, with mechanical and electrical damage load levels of 70kN and 100kN.

The upper and lower electrodes of the ground wire insulator have been assembled before leaving the factory, and the discharge gap has been adjusted and fixed according to the design requirements, without the need for on-site assembly.

Technical standards:

JB 9680-1999 "Disc shaped Suspended Porcelain Insulators for Insulated Ground Wires of High Voltage Overhead Lines"

Model Description:

XDP - disc-shaped suspension porcelain insulator for insulation ground wire of high-voltage overhead lines;

The number after "-" represents the mechanical and electrical damage load value, kN；

C - groove structure;

N - electrode form, N represents tensile type (hanging type is not indicated).