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See Chinese contents: YD/T 993-2016 YD/T 993-2016: The technical requirements and test methods of overvoltages and overcurrents resistibility for wire telecommunication terminal equipment
This standard specifies the technical requirements and test methods for lightning protection and safety protection of wired telecommunications terminal equipment. This standard applies to the protection performance inspection of wired telecommunications terminal products (including indoor and outdoor types), which are connected to communication networks and public power grids.
