Introduction The need for a robust charging infrastructure is of critical importance as the number of people driving electric cars (EVs) increases. Charging stations for EVs need reliable power supply systems that can keep up with the growing demand and keep the charging process simple and streamlined for EV drivers. Surge testers are an essential component of a secure and reliable power grid and ...
The colorimeter is also called the Handheld Colorimeter. The Handheld Colorimeter is a simple color deviation test instrument, that is, to make a filter that simulates the spectral characteristics equivalent to the color sensitivity of the human eye, and use it to measure the light of the sample. The key is to design the spectral sensitivity characteristics of this photoreceptor, and to measure a...
Introduction Goniophotometry is a very effective measuring method that is crucial to the LED characterisation process. It allows for the accurate assessment of a wide range of photometric and radiometric characteristics, shedding information on the efficacy, output, and spatial distribution of light from LEDs. The importance of goniophotometry in LED characterisation is discussed, with an emphasis...
Introduction When it comes to correctly and dependably measuring color, a wide variety of companies rely on spectroradiometer integrating sphere systems of the greatest quality. The constant illumination and comprehensive spectrum information provided by these devices make it feasible to conduct accurate colorimetry analyses. Nevertheless, the outcomes of the measurements might be influenced by va...
8. Accessibility of Live Parts 8.1 An electrical part of a heater shall be so located or enclosed that protection against unintentional contact with uninsulated live parts will be provided, except that this requirement does not apply to a visibly glowing open-wire element and the connections immediately adjacent to the element. See 3.1, 8.2,32.7 and 32.14. Insulated motor brush caps do not require...
The burst generator is also called burst tester, is a kind of EMI filter, and its name comes from the “Electrical Fast Transient/burst” (abbreviated as EFT) experiment. The EFT experiment is an immunity test experiment, which is divided into four levels according to the IEC61000-4-4 standard. Different levels of EFT generators have different injection voltages or cargo coupling voltage...
Introduction To guarantee their safe and dependable performance under harsh environments, aircraft components and systems must undergo extensive testing and validation within the aerospace industry. Aerospace testing relies heavily on altitude condition modeling, which entails recreating the low-pressure and low-temperature settings seen at high altitudes. Environmental test chambers are essential...
From October 27th to October 30th, 2023, LISUN participated in the world -renowned Hong Kong International Lighting Fair（Autumn Edition）. This exhibition is an important event in the lighting industry. It has brought together many well -known enterprises and professionals at home and abroad to show the latest innovative technologies and products. LISUN employee taken picture at Lighting Fair A...
19.15 For battery-operated appliances incorporating a manual voltage selector switch intended to select battery voltage, this switch is set to the lowest voltage position and the highest voltage is applied. B.19.1 The supply terminals of a battery-operated appliance having an indication of polarity are connected to the battery terminals of the opposite polarity, unless such a connection by the use...
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