GB/T 4074.15-1983 "Enameled wire test method, reciprocating scratch paint test" proposed by the Ministry of Machinery Industry of the People's Republic of China, is suitable for evaluating the scratch resistance of enameled flat wire or enameled round wire film. The standard is based on the reciprocating scratch test to inspect the durability of enameled wire under mechanical scratch conditions to ensure the integrity and abrasion resistance of the film.