Research on the 5kV Insulation Resistance Tester in the Automatic Electrical Safety Analyzer

Abstract
With the widespread use of electrical equipment, electrical safety testing has become increasingly important. This paper focuses on the LISUN LS9955 Automatic Safety Test System, specifically discussing its 5kV insulation resistance testing function. By providing a detailed introduction to the system’s testing functions, technical parameters, and application areas, this paper aims to serve as a reference for electrical safety testing.

Introduction
The safety performance of electrical equipment directly impacts user safety and property protection. Therefore, electrical safety testing is an indispensable part of product development and manufacturing. The LISUN LS9955 Automatic Safety Test System integrates multiple testing functions, including the 5kV insulation resistance tester, offering comprehensive testing solutions for electrical equipment’s safety performance.

Automatic Safety Test System LS9955

Overview of the LISUN LS9955 Automatic Safety Test System
The LISUN LS9955 Automatic Safety Test System is a multifunctional electrical safety analyzer that integrates the following test functions:

• AC/DC Hi-pot Test
• Insulation Resistance Test (IR)
• Leakage Current Test (LLC)
• Grounding Resistance Test (GR)
The system is primarily used in the production lines and research laboratories of products such as lighting fixtures, home appliances, and power tools for safety testing.

Main Testing Functions

1. AC/DC Hi-pot Test
The Hi-pot test is used to verify the insulation performance of electrical equipment under specified voltage. The LISUN LS9955 provides a voltage range from 100V to 4000V with a testing accuracy of ±(5%+3V). The AC Hi-pot test current range is 0.10mA to 20.00mA, and the DC Hi-pot current range is 0.10mA to 12.00mA.

2. Insulation Resistance Test (IR)
The insulation resistance test is used to measure the insulation resistance of a device to ensure its insulating performance. The LISUN LS9955 insulation resistance test voltage ranges from 100V to 1000V, and the resistance range is 1.00MΩ to 2000MΩ, with an accuracy of 5% + 0.5MΩ.

3. Leakage Current Test (LLC)
The leakage current test is used to measure the leakage current of equipment during operation. The LISUN LS9955 leakage current test range is 0.10mA to 20mA, with an accuracy of ±(0.3%+5μA).

4. Grounding Resistance Test (GR)
The grounding resistance test measures the resistance of the grounding terminal to ensure reliable grounding. The LISUN LS9955 grounding resistance test range is 0 to 600mΩ, with an accuracy of ±(5%+2mΩ), and the output current ranges from 1.00A to 30.00A.

Technical Parameters
Below are the main technical parameters of the LISUN LS9955 Automatic Safety Test System:

Application Areas
The LISUN LS9955 Automatic Safety Test System is widely used in the following fields:

• Lighting Fixtures: Testing the electrical safety performance of various lighting products to ensure compliance with relevant standards.
• Home Appliances: Performing comprehensive safety tests on home appliances to ensure user safety.
• Power Tools: Evaluating the electrical safety of power tools to prevent potential hazards.

Conclusion
The LISUN LS9955 Automatic Safety Test System, with its multifunctional integration and high-precision testing capabilities, provides reliable assurance for the safety performance of electrical equipment. Its 5kV insulation resistance testing function, in particular, meets high-demand testing requirements. This system has extensive application prospects in fields such as lighting, home appliances, and power tools, offering strong support for electrical safety testing.