This standard specifies the sample installation and test methods for general tests of insulators. This part is applicable to appearance and size inspection, shape and position deviation inspection, porosity test and temperature cycle test of porcelain and glass insulators (including bushings, post insulators, insulating jackets of electrical products, line insulator strings and their components).
GB/T 775.1-2006 Referenced Document
GB/T 2900.19-1994 Electrotechnical terminology.High-voltage test technique and insulation co-ordination