Regarding cables, is there an authoritative testing agency? ? ?

How much does the appraisal cost? ?

There is an authority! * * The wire and cable quality supervision and inspection center is currently: The full text shows that the Testing Center of Shanghai Cable Research Institute was established in 1983 and is a "Chinese Laboratory * * approved by the Subscription Committee * * A first-class, third-party product testing laboratory independent of the development, manufacturing, and trading of wire and cable products. The center can inspect bare wires, wires and cables for electrical equipment, wire assemblies, power cables, winding wires, communication cables, optical cables, electrical accessories, and materials for wires and cables. * * Standards, industry standards, IEC standards, UL standards and major economically developed countries * * Standards etc. for testing. The center currently has more than 60 employees, including more than 40 technicians, accounting for about 66%, and more than 20 senior engineers. The center has a working area of ​​more than 5,000 square meters and 450 sets of major instruments and equipment. Testing capabilities include 500kV power cable type testing and pre-qualification testing. More than 5,000 test reports are issued and tested every year. At present, the center serves as the designated testing agency for China's compulsory product certification. More than 2,000 wire and cable companies have obtained China's compulsory product certification certificates through testing by the center. ； More than 200 wire and cable companies have obtained export product quality licenses through the center's product inspection and joint review by the center's business authorities. ； More than 1,000 wire and cable companies have obtained industrial product production licenses through product inspection by the center and joint review by the center and business authorities. In addition, the center participates in 3C certification factory inspections and system audits for more than 1,000 companies every year. At the same time, more than 1,000 wire and cable manufacturers entrust the center to perform verification and calibration of special testing equipment for wires and cables every year. For more than 20 years, through various levels of * * Reviewed by institutions, accreditation bodies, and international peers, the center's quality management work has been continuously improved, and the quality system has been continuously improved. The center has become a laboratory with a sound quality system, complete organizational structure, strong technical force, and advanced and complete testing equipment. http://www.secri.com/

Regional quality and technical supervision bureaus generally also have appraisal qualifications. You can go to the local supervision bureau for consultation. I can’t remember how many samples cost 600 or 800. Just call 114 to check.