T/GAMDPM 008-2020 Highway ETC gantry system lightning protection technical specifications
T/GAMDPM 008-2020 Highway ETC gantry system lightning protection technical specifications
Basic Information
Scope
Scope: This document specifies the general requirements for lightning protection of ETC gantry systems on highways, protection against direct lightning strikes and lightning electromagnetic pulses, and the technical requirements for the inspection and maintenance of lightning protection devices. This document applies to the lightning protection design, construction, inspection, and maintenance of new and renovated ETC gantry systems on highways. The lightning protection design, construction, inspection, and maintenance of other mechanical and electrical systems on highways can be used as a reference. Main technical content: This standard specifies the technical requirements for lightning risk zoning in the areas where ETC gantry systems on highways are located, the division of lightning protection zones, protection against direct lightning strikes and lightning electromagnetic pulses, and the inspection and maintenance of lightning protection devices.