Domestic Standards Comparison of Zinc-coated Steel Stranded Conductor

The mainly domestic standards of zinc-coated steel stranded conductor were compared and analyzed. The requirements of each standard, such as stranded conductor structure, direction and lay ratio of stranded conductor, stranding increment, mass per unit length of stranded conductor, direct-current resistance of stranded conductor and comprehensive tensile force of stranded conductor were compared. The results show that GB/T 1179-2017 covered the common specifications of overhead ground wire. The parameters of the stranded conductor were reasonable and accurate. The direct-current resistance parameters of the stranded conductor were added, which made it convenient for users to selected the appropriate type and specification of the stranded conductor according to different needs.