What is a tracking testing machine?
In the quality control of electrical equipment and materials, the tracking testing machine is an important testing equipment. It is mainly used to evaluate the tracking resistance of insulation materials under humid and polluted conditions to ensure that they can still maintain safe and reliable insulation performance in harsh environments. This article will introduce in detail the definition, working principle, application fields and related technical parameters of the tracking test machine.
1. Definition of tracking testing machine

The leakage tracking test machine is a testing equipment that simulates the leakage phenomenon that may occur in electrical equipment under humid and polluted conditions. It evaluates the material's resistance to tracking by applying voltage and contaminating liquid to observe whether conductive channels (ie, traces) are formed on the surface of the insulating material. This equipment is widely used in electrician, electronics, home appliances, automobile and other industries.
2. Working principle
The working principle of the tracking test machine is to apply a certain voltage on the surface of the insulating material and drop the pollution liquid (usually ammonium chloride solution) to simulate the humid and polluted environment in actual use. During the test, the equipment will record whether electric traces are formed on the surface of the material and the extent of the electric traces to determine the insulation performance of the material.
| Test steps | Operation content |
|---|---|
| 1 | Fix the specimen on the test bench |
| 2 | Apply specified voltage (usually 100V-600V) |
| 3 | Add contamination solution dropwise and observe the formation of electric traces. |
| 4 | Record trace length and time to evaluate material performance |
3. Application fields
Tracking testing machines are widely used in the following fields:
| Industry | Application scenarios |
|---|---|
| Electrical industry | Tracking resistance testing of insulation materials, switches, sockets and other products |
| Electronics industry | Insulation performance evaluation of circuit boards and electronic components |
| Home appliance industry | Electrical safety testing of home appliances such as washing machines and refrigerators |
| Automotive industry | Environmental performance testing of automotive wiring harnesses and electrical components |
4. Technical parameters
The technical parameters of tracking testing machines vary by model and brand. The following are common parameter ranges:
| parameters | range |
|---|---|
| voltage range | 100V-600V |
| Current range | 0.1A-1A |
| Drop interval | 30±5 seconds |
| Test time | 1-6 hours (adjustable) |
5. Hot Topics and Hot Content
In the past 10 days, hot topics about leakage tracking testing machines have mainly focused on the following aspects:
| topic | Hot content |
|---|---|
| Growth in demand in new energy industry | With the rapid development of new energy vehicles and photovoltaic industries, the requirements for the tracking resistance of insulating materials are higher, and the market demand for tracking testing machines has increased significantly. |
| Intelligent testing equipment | New leakage tracking testing machines have begun to integrate Internet of Things technology to achieve remote monitoring and automatic data analysis, improving testing efficiency and accuracy. |
| International standards update | The latest versions of international standards such as IEC 60112 have put forward more stringent requirements for tracking tests, pushing equipment manufacturers to upgrade their products. |
6. Summary
The tracking test machine is an important tool for performance evaluation of electrical insulation materials. It has a wide range of applications and various technical parameters. With the rapid development of new energy and intelligent technologies, the market demand and technical level of this equipment are also constantly improving. Understanding the working principle and application scenarios of the tracking testing machine will help you better select and use the equipment and ensure the safety and reliability of electrical products.
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