Notícias da indústria

Is Ru same as UL?

autor : Shenzhen Crown Lighting

tempo de atualização : 2021-06-22 14:49:08

What is the difference between RU and UL logo in LED?

For different types of services of UL certification, we often see different UL certification marks. Usually UL marks can be divided into three categories: UL certification listed, UL certification recognized and UL certification classification three different UL signs. What we see on the nameplate of the power adapter is the UL listed mark. Let’s explain the specific explanations of these three in detail.

The English name of the list is: Listed. To put it simply, the list name contains complete products. The complete expression of the list name is: only for complete products and various devices or devices that are replaced or installed by qualified personnel on the spot. The products that belong to the UL listing service include: IT equipment, AV equipment, refrigerators, vacuum cleaners, household appliances, medical equipment, computers, commercial equipment, and various electrical products (like led flood lights, outdoor led lighting, led ceiling lights, solar led light and so on ) that function in buildings and other electrical components (like led light driver, driver circuit for led lights, c7 led christmas lights white wire and so on). UL listed The products can be marked with the UL listing mark on each product. If the final product needs to be marked with the UL listing mark, UL should test the sample to confirm that it has no hidden dangers of fire and electrical hazards.

Recognized in English is: Recognized. To put it succinctly, recognition means that it contains parts and components. The complete expression of recognition is: mainly a safety certification for components and materials. Recognition service is an item in UL service, and its identification The products can only be used as components and raw materials on UL listed, graded or other approved products. The components approved by the accreditation service will be assembled in the finished product, and the components must meet the relevant license conditions before they can be applied to the corresponding finished product Therefore, the approved product is incomplete in structure or has certain restrictions in use to ensure that the expected safety performance is achieved. In most cases, the tracking service of approved products belongs to R category. It belongs to L category approval Products include electronic wire AVLV2, processing wire ZKLU2, wiring harness ZPFW2, aluminum wire DVVR2, and metal flexible pipe, DXUZ2. Approved products require approval marks. So, such as switches, printed boards, transformers, wires, and plugs that constitute a complete product , Plastic materials, etc. are all approved objects.

The classification in English is: Classified. In short, the classification only evaluates the specific hazards of the product. UL's classification service is based on relevant laws and regulations to evaluate the special performance of products (like LED Panel Lights industrial, Industrial LED Tunnel Light, Industrial High Bay LED and Commercial-Grade High Bay and Industrial Pendant Lights)used in commercial or industrial environments. Or a safety certification program that evaluates products other than the implementation of UL standards, including internationally recognized standards, such as IEC and ISO standards. Generally speaking, most graded products are not products used by consumers, and graded services Mainly for building materials, various fire protection equipment and marine equipment, the classification mark in the UL mark of products used in industry or commerce indicates that the product has certain restrictions and specified ranges when it is certified by UL. For example, for industrial solvents Such chemicals are only evaluated for the range of fires that may occur when they reach the ignition temperature. The classification service of some products is the same as the listing service, but generally only one or several aspects of the product are evaluated, such as In the United States, medical X-ray diagnostic equipment must comply with U.S. laws and regulations on radiation emission and beam accuracy throughout the country. However, because UL classification only uses X-rays as classified products, only its mechanical properties, electrical properties and other properties are evaluated. These aspects of non-radiation performance.

UL listing is mainly for finished products (like SMD Solar 100w Solar Flood Light For Outdoor Or Indoor and other bright outdoor led lights) used by end consumers, and UL recognition is mainly for parts. The use of approved components in finished products can reduce the cost of applying for UL listing certification for the finished product and shorten the certification cycle. So UL listing and UL recognition There is still a relationship between each other, and UL classification generally speaking, most classified products are not products used by consumers, but products used in industry or commerce. The three UL marks are used for products with three different services. Mixed use, otherwise it can be considered as a counterfeit product.UL's services are not only based on the U.S. UL standard, but also based on the Canadian cUL standard. Therefore, the UL mark is also divided into three types for UL products and cUL products, and both.

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