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T ü V mark is a safety certification mark specially customized for components in Germany, which is widely accepted in Germany and Europe. At the same time, enterprises can apply for CB certificate when applying for T ü V mark, thus obtaining certificates from other countries through conversion. ... Read More
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UL is a product safety testing and certification agency, and also the founder of American product safety standards. For more than a century, UL has tested hundreds of products and components according to relevant safety standards and evaluated its management system according to international ... Read More
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As more and more countries join the WTO, in order to be in line with international standards, many countries have formulated laws and regulations to limit the safety, energy conservation, environmental protection and other technical indicators of various commodities, which can not only ensure the ... Read More
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Inverse time limit current protection characteristics The fuse has anti time delay characteristics, that is, when the overload current is small, the fusing time is long; When the overload current is large, the fusing time is short. Therefore, within a certain overload current and overload time range... Read More
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Ampere second characteristic, also known as protection characteristic, is mainly used to characterize the relationship between the current flowing through the overload protection device and the action time of the protection device. It is one of the main indicators to measure the performance of ... Read More
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The CSA Group (Canadian Standards Association) coordinates with businesses, organizations and code authorities for product standards and codes development CSA is a governing body with standards creation for Canada. A CSA mark can be applied after testing, certifying and receiving approval from CSA. ... Read More
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This depends on the open performance and protection. Fast performance fuse helps to quickly limit the fault current to damage downstream components in short -circuit events. However, unless these fuses are oversized, harmless flooding or temporary wave current may cause trouble. The delayed fuse can ... Read More
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ASTA (The Association of Short circuit Testing Authorities), founded in 1938, can provide safety certification and services for products such as power connection devices and components. On January 1, 2004, BEAB and ASTA merged to establish ASTA BEAB Certification Services, It has become a large ... Read More
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What is UL certification? UL is a non-profit organization in the United States, its full name is Underwriters Laboratories Inc. The purpose of UL certification is to inspect and classify samples from a safety point of view for various products, raw materials, components, systems, structures, ... Read More
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For the fuse standard system, the main IEC standards, UL standards and ISO standards, Chinese GB, German DIN and British BS are basically equivalent to IEC standards. IEC standards mainly include IEC 60127, IEC 60269, etc., UL mainly includes UL248, etc., ISO mainly includes ISO 8820 series, etc. ... Read More
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