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The key role of arc resistance tester in electrical material testing
Date: 2025-12-15Read: 0

1、 Introduction to Arc Resistance Tester

The arc resistance tester is a testing device used to evaluate the tolerance of solid insulation materials under arc discharge. It is applied in industries such as motors, electrical appliances, and household appliances, and is suitable for evaluating the performance of insulation materials such as plastics, resin adhesives, and insulation paints used in electrical engineering.

2、 Definition and purpose

The arc resistance tester simulates a high-voltage arc discharge environment, applies continuous arc action to the sample, and measures the time required for it to form a carbonized conductive path and lose insulation performance under the arc action. As a key indicator for measuring the arc resistance performance of materials, the larger the value, the stronger the arc resistance performance of the material.

The arc resistance tester equipment is mainly used to test the arc resistance characteristics of solid insulation materials including plastics, films, resins, mica, ceramics, glass, insulating oil, insulating paint, cardboard, etc.

3、 Working principle

The arc resistance tester applies a high-voltage arc to the sample during the testing process to monitor its carbonization process and changes in conductivity state. The system records the time from the start of the arc to the occurrence of conductive failure in the sample, in order to reflect the material's arc resistance.

4、 Composition structure

The arc resistance tester mainly consists of the following parts:

High voltage generator: used to generate the required high voltage arc;

Electrode system: in contact with the sample, conducting current and forming a discharge channel;

Control system: adjust voltage parameters, arc action time, and achieve automatic control of the test process;

Protection system: provides protection functions such as overpressure, overcurrent, and short circuit;

Data processing system: Collect and analyze experimental data.

5、 Operation method

The standard operating procedure is as follows:

1. Install the sample into the electrode system to ensure good contact between the electrode and the sample;

2. Set up automatic/manual testing according to testing requirements;

3. Start the equipment and initiate the arc excitation process;

4. Record the time from carbonization to conductivity failure of the sample;

5. Analyze the obtained data and evaluate the arc resistance performance of the material.

The arc resistance tester equipment provides reliable technical support for the research and development, quality control, and product certification of insulation materials.