一、 International standards: at present, there are two international standardization organizations, the International Committee for Standardization (IS0) and the International Electrotechnical Commission (IEC)
National standards: national standards that specify the requirements that a product or a similar product should meet to ensure its applicability, including mandatory (GB) and recommended (GB / T). National standards for electrical accessories: it is mainly proposed by the National Technical Association for electrical accessories standards. The technology relies on the original electrical science research institute, and the quality of products is tested by Guangzhou electrical accessories testing station.
二、 Standard for selection of rated voltage and current of switch socket
The preferred values of rated voltage are: 130v, 250V and 440V (if there are other voltage ratings, the rated voltage shall not be less than 120V)
The preferred values of the rated current are 6a, 10a, 16a, 20a, 25A, 32a and 63A, and the rated current should not be less than 6A. However, the rated current of the instantaneous action or switch used to operate the bell, electromagnetic remote control switch or delay switch can be 1a, 2a and 4A.
三、 Mandatory safety certification
Electrical products must be subject to safety certification, i.e. "CC" certification. "CCC" certification is the certification certificate issued by China Quality Certification Center (CQC) to the manufacturers of electrical equipment. The enterprises that obtain the certificate shall comply with the national standards. "CC" certification is also an effective monitoring means for domestic and foreign products sold in the domestic market and a necessary pass for electrical accessories to enter the Chinese market.
