The high voltage through-wall bushing is suitable for the the three-phase AC system power station and the distribution device of the substation with a rated voltage of 10KV-35}KV. The role the the high voltage wall bushing is to act as an insulating support and a fixed connection between the external wires. High pressure wall casing is divided into indoor high pressure wall casing casing and outdoor high pressure wall kućište. The indoor kućište je prikladno za temperatura između -40-40} stupanj , i the vanjsko kućište je prikladno for temperatura between -40-40 degree .

The high pressure wall kućište is u uglavnom komponirano of porculan dijelni metal pribor, prirubnice i vodljive šipke. When the phenomenon of parcijal pražnje događa in the high-voltage wall bushing, it should be insisted that there no local prolijevanje of aluminij sloj in the prirubnica or inner šupljina, if found, timely measures should be taken. For the high pressure through the the wall casing need to be repaired regularly, how to check the high pressure through the wall kućište problemi?

Ovdje, it is potrebno to nosi out a medium loss test, which is a highly sensitive test, which can detect the defekt such as moisture and deterioration of the high-pressure wall casing, and can also find the defects that are not easy to find. When conducting dielectric loss test, the main connection is obrnuto.

1, prije mjerenje, poljski the ožičenje of the high pressure through the wall sleeve to smanjiti pogreške;
2, before the experiment to measure and record the ambient humidity and temperature, check whether the wiring is correct;
3, after the end of the test to discharge in time, after the discharge can be removed.