Here are some national standards related to surge protectors:
GB/T 18802.1-2011 "Low Voltage Surge Protective Devices (SPDs) Part 1: Performance Requirements and Test Methods" specifies the performance requirements, test methods, and specific usage conditions of low-voltage surge protectors, providing a standard basis for the production and selection of surge protectors.
GB/T 18802.21-2016 "Low voltage Surge Protective Devices Part 21: Performance Requirements and Test Methods for Surge Protective Devices (SPDs) in Telecommunications and Signal Networks" specifies parameter limits such as insertion loss and return loss for surge protective devices in telecommunications networks.
GB 50057-2010 "Code for Design of Lightning Protection of Buildings" provides clear reference in the design of lightning protection for buildings. It stipulates that a first level surge protector with T1 test must be installed in the main distribution cabinet of the building's electrical system. For buildings with a height exceeding 45m, a voltage equalizing ring should be installed every three floors, and the grounding resistance of SPD should be ≤ 4 Ω.
GB 50343-2012 "Technical Specification for Lightning Protection of Building Electronic Information Systems": Requirements are put forward for lightning protection of building electronic information systems. In addition to the installation requirements of surge protectors for electrical systems, it is also stipulated that signal surge protectors need to be installed, and the voltage protection level Up of signal SPDs should be lower than 80% of the equipment withstand voltage value.
DL/T 620-2021 "Design Specification for Lightning Protection of Power Systems": applicable to surge protection requirements of equipment in power systems, especially for surge protection of distribution systems in the power industry.
YD/T 1235.1-2021 "Lightning Protection and Grounding of Communication Stations": applicable to the lightning protection requirements in the communication industry, it defines surge protection measures for communication rooms, optical fibers, cable lines, etc.
GB/T 38547-2020 "DC Surge Protectors for Photovoltaic Systems": specifies the requirements for DC SPDs to operate continuously for 1000 hours at 1.25 times the nominal voltage.
GB/T 37048-2018 "Technical Specification for Lightning Protection of Highway Mechanical and Electrical Systems": specifies the requirements for the classification of thunderstorm days in the area where the highway mechanical and electrical system is located, the division of lightning protection zones, and the design and construction of direct lightning and lightning electromagnetic pulse protection.
GB/T 36963-2018 "Technical Specification for Lightning Protection of Photovoltaic Building Integrated Systems": specifies the installation requirements for surge protectors of photovoltaic building integrated systems, and is applicable to the lightning protection design and construction of new, renovated, and expanded photovoltaic building integrated systems.
TB 10180-2016 Technical Specification for Railway Lightning Protection and Grounding Engineering: Applicable to surge design of railway electrical and communication systems.
