Environmental Chamber | Climatic Chamber | Thermal Chamber | Salt Fog Chamber - LISUN

The electric wire and cable burning tester is a precision instrument specifically designed to determine the non-propagation of flames of cables under fire conditions. This equipment is suitable for various cable types including single plastic wires, control cables, cross-linked cables, elevator cables, ship cables, and mining cables. Additionally, it can conduct vertical burning tests for high self-extinguishing low smoke halogen-free flame-retardant polyolefin insulation materials and 105°C low smoke halogen-free flame-retardant irradiated polyolefin insulation materials. The design of the electric wire and cable burning tester adheres to the following national standards: • GBT 18380.11-2008 “Tests on electric cables and optical cables under fire conditions – Part 11: Test for vertical flame propagation for a single insulated wire or cable – Apparatus” • GBT 18380.12-2008 “Tests on electric cables and optical cables under fire conditions – Part 12: Test for vertical flame propagation

The spectrum analyzer is a high-precision instrument specifically designed for measuring the spectral characteristics of electrical signals. By converting signals into spectrum graphs, users can visually understand the signal’s spectral density and conduct in-depth signal analysis based on frequency distribution. Operating Principle At the core of a spectrum analyzer lies the principle of Fourier Transform, a mathematical method that converts a time-domain signal into its frequency-domain representation. Fourier Transform enables the analysis and synthesis of frequency-domain signals. After the test signal undergoes Fourier Transform, the spectrum analyzer receives and processes these signals to ultimately output corresponding spectrum graphs. SPA-3P6G Spectrum Analyzer Main Components of a Spectrum Analyzer Front-End Interface: This interface receives the signal under test, typically composed of antennas or cables. It converts the signal into electrical signals and transmits them to s

Principle of Operation of the Leakage Tracer Tester The operation principle of a leakage tracer tester primarily involves insulation quality testing and leakage current testing of electrical equipment: Insulation Quality Testing: In insulation quality testing, the leakage tracer tester applies a specific voltage (often several times the rated operating voltage) to the insulation structure of the device under test. It then detects the leakage current on the insulation structure to assess the device’s insulation quality. Effective insulation quality prevents current leakage, ensuring device safety and reliability. Leakage Current Testing: During leakage current testing, the leakage tracer tester applies a certain fault current to the device under test and measures the leakage current while conducting analysis. By measuring and analyzing leakage current, the tester evaluates the device’s safety performance under fault conditions. Components of the Leakage Tracer Tester and Their Functions

Overview of Withstand Voltage Testing Withstand voltage testing evaluates the ability of various electrical devices, insulation materials, and insulation structures to withstand high voltage without compromising their insulation properties. This process involves applying a high voltage to the insulation material to assess its endurance, ensuring that the material can operate normally under working voltage or overvoltage conditions. The primary purpose of withstand voltage testing is to verify that the insulation performance of the product meets safety standards. Basic Principle of Withstand Voltage Testing The fundamental principle of withstand voltage testing is to apply a voltage higher than the normal working voltage to the insulator of the device under test and maintain it for a specified duration. If the insulation is adequate, the applied voltage will result in minimal leakage current. If the leakage current remains within the specified range during the test period, it can be con

Overview As electrification continues to penetrate daily life, national safety standards for the electricity market have become increasingly stringent, bringing attention to the issue of leakage current. As a common problem in modern electrical systems, it is crucial to understand the differences between leakage current and stray current, as well as their respective safety issues. For engineers, it is essential to efficiently address these issues. Definition and Existence of Stray Current Stray current refers to the small amount of current that leaks through insulation materials or other pathways to the ground due to imperfect insulation properties. This phenomenon occurs not only in appliances but also in other electrical equipment, such as cables, wires, plugs, sockets, and power adapters. In nature, stray currents are present in environments like mountains and oceans. Thus, stray current is an unavoidable part of our daily life and work. Difference Between Leakage Current and Stray

Overview In modern industrial production, hoses are common industrial materials widely used for liquid and gas transmission. However, prolonged use and exposure to natural environments can lead to hose aging, affecting their performance and lifespan. To evaluate the aging resistance of hoses, the xenon lamp aging test chamber has become an essential testing device. This article will discuss the principles, functions, application range, and importance of the xenon lamp aging test chamber in product quality control. Basic Principles The xenon lamp aging test chamber simulates ultraviolet (UV) radiation from the natural spectrum, along with high temperature and high humidity conditions, to accelerate the aging process of hoses. The main principles include: UV Radiation: Equipped with xenon lamps that produce UV radiation simulating the natural spectrum. UV radiation on the hose surface mimics sunlight exposure, promoting hose aging. Constant Temperature and Humidity System: The test chamb

Overview The salt spray test chamber is primarily used for conducting corrosion tests to ensure the quality of ferrous metals and their coatings. This test is widely used in the paint and coating industry to verify the durability and anti-corrosion properties of coatings. Corrosion significantly impacts ferrous metals, and the salt spray test chamber can simulate a saline environment to accelerate the corrosion process, thereby evaluating the corrosion resistance of materials and coatings. Working Principle of Salt Spray Test Chamber The salt spray test chamber accelerates the corrosion process by simulating a salt fog environment. The main principles are as follows: • Salt Fog Generation: The test chamber has an internal spraying system that sprays a saline solution through nozzles, creating fine salt fog. • Environmental Simulation: The temperature and humidity inside the test chamber are controllable, simulating saline conditions. • Accelerated Corrosion: Through prolonged exposure