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Introduction In the field of electrical safety testing, the tracking resistance of insulation materials is an important criterion for evaluating their performance under high voltage and environmental stress. The phenomenon of tracking refers to the gradual deterioration of an insulating material’s surface due to leakage current, resulting in damage and potential failure. This process is of particular concern for materials used in electrical components, as it can lead to electrical faults, short circuits, and safety hazards. To address this concern, tracking current tests are employed, where specific test equipment, such as the Tracking Current Test Chamber for Insulation Materials, is used to simulate conditions that may lead to leakage tracking and assess the material’s resistance to such stress. The LISUN TTC-1 Tracking Test Chamber is one such apparatus designed to perform leakage tracking tests in accordance with industry standards. This article explores the significance of trackin...
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Radio Frequency (RF) current probes play a crucial role in Electromagnetic Compatibility (EMC) testing. Their primary function is to measure RF currents in a circuit without direct contact with the tested device or components. These probes are an essential part of EMC measurement systems, ensuring that devices meet electromagnetic emission and susceptibility standards. This article delves into the technical aspects of RF current probes, their applications in EMC testing, and how the LISUN VOL-CP Radio Frequency Current Probe enhances the testing process. 1. Introduction to RF Current Probes for EMC Testing Electromagnetic Compatibility (EMC) testing is a critical part of ensuring that electronic devices do not emit electromagnetic interference (EMI) that could disrupt other devices or communications. EMC testing also verifies that a device is resilient to external RF interference. RF current probes are designed to detect and measure RF currents flowing through a conductor, which is ess...
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Introduction In the field of electromagnetic interference (EMI) and electromagnetic compatibility (EMC) testing, antennas play a crucial role in measuring and analyzing electromagnetic fields. The triple-loop antenna is a specialized type of antenna designed for specific applications in these areas. The LISUN VVLA-30M Three Loop Antenna is a notable example of this technology, providing an efficient solution for both radiated and conducted EMI testing. This article explores the principles, applications, and performance characteristics of the triple-loop antenna, with a focus on the LISUN VVLA-30M model. What is a Triple-Loop Antenna? A triple-loop antenna is a type of loop antenna that consists of three interconnected loops arranged in a specific geometric configuration. The antenna’s design allows it to be sensitive to electromagnetic fields over a broad range of frequencies, making it ideal for testing various devices in EMI and EMC environments. The three loops in the antenna are ty...
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https://www.lisungroup.com/news/technology-news/flammability-testing-and-fire-hazard-assessment.html
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Abstract Electrostatic Discharge (ESD) poses a significant threat to sensitive electrical and electronic equipment, as unexpected discharges can lead to malfunction or irreversible damage. Electrostatic discharge test equipment, like the LISUN ESD61000-2 ESD Simulator Gun, is essential for evaluating the ESD resilience of devices by simulating real-world discharge events. With the ability to generate electrostatic voltages as high as 30 kV, the LISUN ESD61000-2 meets and exceeds the stringent requirements of the highest ESD immunity level (level 4). This paper discusses the technical aspects of ESD testing, the importance of simulating high-level discharges, and presents data illustrating the simulator’s efficacy in maintaining testing comparability and repeatability. ESD61000-2_Electrostatic Discharge Simulator Introduction to Electrostatic Discharge Testing Electrostatic discharge occurs when there is a sudden flow of electricity between two objects with different electrical potentia...
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Introduction In the field of electrical safety testing, one of the most critical procedures for ensuring the safety and reliability of household appliances is the household appliances electrical safety withstand voltage test. This test is designed to evaluate the ability of electrical products to withstand high-voltage stress without breaking down, preventing electric shocks or fire hazards when exposed to abnormal voltage conditions. The LISUN WB2671B AC/DC Withstand Voltage Tester is a state-of-the-art device used for this crucial safety assessment, capable of testing both AC and DC voltage withstand capabilities of various household appliances. This article will explore the significance of this test, the features of the LISUN WB2671B, and its application in enhancing the safety of household appliances. Importance of Withstand Voltage Testing for Household Appliances Household appliances, including washing machines, refrigerators, electric stoves, and other electrical devices, must m...
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Introduction to Leakage Current Testing Leakage current is an unwanted current that flows through an electrical system when there is an unintended conductive path between the live part of the system and earth or any other conductive part. Leakage current testing is essential in ensuring the safety of electrical and electronic devices by identifying potentially hazardous current paths that can lead to electric shock or fire hazards. The primary objective of using a Leakage Current Tester is to evaluate the electrical safety of products, particularly in the context of medical devices, household appliances, and other electrical equipment. The LISUN WB2675D Leakage Current Tester is a versatile and precise device designed to measure leakage currents in electrical systems. This paper provides an in-depth analysis of the LISUN WB2675D Leakage Current Tester, its operational principles, key features, applications, and safety standards, along with practical test examples. Working Principle of ...
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