The CB system (IEC system for conformity testing and certification of electrical products) is an international system operated by IECEE. The certification bodies of each member country of IECEE test the safety performance of electrical products on the basis of IEC standards. The test results are the CB test report and CB The test certificate is a system of mutual recognition among the member states of IECEE. The purpose is to reduce international trade barriers that must be met by different countries’ certification or approval criteria.
CSA is the abbreviation of Canadian Standards Association. It was established in 1919 and is Canada's first non-profit organization dedicated to the development of industrial standards. Products such as electronics and electrical appliances sold in the North American market need to obtain safety certification. CSA is currently the largest safety certification agency in Canada and one of the most famous safety certification agencies in the world. It can provide safety certifications for all types of products in machinery, building materials, electrical appliances, computer equipment, office equipment, environmental protection, medical fire safety, sports and entertainment.