UL certification classification
generally speaking, the listing only applies to complete products and various devices and devices replaced or installed by qualified personnel on site, and various products that belong to UL listing services, including household appliances, medical equipment, computers, commercial equipment, and various electrical products used in buildings. Such as power distribution systems, fuses, wires, switches and other electrical components. Products listed by UL can usually be marked on each product with UL's listing mark and the usage of the parallel name mark.
accreditation service is an item in UL service, and the products identified can only be used as components and raw materials on UL listing, classification or other approved products. The approved product is not structurally complete, or has certain restrictions on its use to ensure the expected safety performance. In most cases, the tracking service for approved products falls into the R category. Approved products belonging to Class L are electronic wire (AVLV2), processed wire (ZKLU2), wire harness (ZPFW2), aluminum wire (DVVR2), and metal flexible tube (DXUZ2). Approved products are required to bear the approval mark.
when a UL applicant obtains the above listing, approval or classification service, its products need to be produced in the name of another company to meet the needs of sales, he can apply for multiple listing, multiple approval or multiple classification service. In this case, the manufacturer who obtains the listing, approval or classification is allowed to use the name of another company in the product list, but the product is except the company code, product code or other characteristics that UL considers acceptable, must be consistent with the original listed, approved or graded products.
if the UL applicant does not want to obtain listing, recognition or grading service in the name of his own company, he can apply for listing, recognition or grading in the name of another trade name (usually a retailer or wholesaler), that is, "AL" listing, recognition or grading service. It differs from multiple listing, multiple recognition or multiple rating services in that its applicant is not a listed person.
such as certification services, inspection services, fact-finding services, research services.
materials or components that may be replaced in the future.
4. There are more than 40,000 federal, state, county and municipal governments in the United States, all recognize the UL certification mark.
