Leakage Trace Testing Machine Destructive Test Conducted On Insulation Materials To Simulate The Above Situation

DX8352 Leakage trace testing machine

Introduction:

Basic principle: Under the influence of humid and impurity environments on electrical products, insulation leakage may occur between charged parts of different polarities or between charged parts and grounded metal. The generated arc can cause breakdown and short circuit to the electrical appliance, material corrosion due to discharge, and even lead to fire.

The leakage trace test is a destructive test conducted on insulation materials to simulate the above situation. The experiment is to apply a certain voltage and drop a specified volume of contaminated liquid (0.1% NH 4 CL) at a fixed height (35mm) for 30 seconds on the surface of a solid insulation material, between platinum electrodes of a specified size(2mm×5mm), to evaluate the tolerance of the solid insulation material surface under the combined action of an electric field and a contaminated medium, and to determine its relative tracking index (CT1) and resistance to tracking index (PT1).

Detailed description of technical parameters:

Compliant with standard: Meets the requirements of GB/T4207 testing standard.

Using a rectangular platinum electrode, the forces exerted by the two electrodes on the sample are 1.0N ± 0.05N, respectively.

The applied voltage can be adjusted between 100-600V (48-60Hz). When the short-circuit current is 1.0 ± 0.1A, the voltage drop should not exceed 10%. When the short-circuit leakage current in the test circuit is equal to or greater than 0.5A, maintain it for 2 seconds, the relay will act, cut off the current, and indicate that the test object is unqualified.

The time constant of the drip device is adjustable, accurately controlling the drip volume of 44-50 drops/cm3 and the drip time interval of 30 ± 5 seconds.

Electrode: Two rectangular platinum electrodes with a cross-sectional area of 2mm×5mm. One end edge has a 30°slope.

Surface force: 1.0 ± 0.05N

Test voltage: 100-600V

Maximum test current: 3A

Distance between two electrodes: 4.0mm

Dropping device: Dropping time interval can be set arbitrarily

Test chamber volume: 0.5M³,depth 60x width95x height90cm

External dimensions: depth x width x height: 61x 120x 105cm

Outer box material: mirror stainless steel.