This document specifies the lightning current and lightning overvoltage of low-voltage distribution lines and electronic systems, insulation coordination and insulation levels, insulation tests and their requirements, and the selection and application of lightning protection measures. This document applies to low-voltage distribution lines and electronic systems with AC rated voltage not greater than 1000V and DC rated voltage not greater than 1500V.
GB/T 21697-2022 Referenced Document
GB/T 16927.1-2011 High-voltage test techniques.Part 1:General definitions and test requirements
GB/T 21714.3 Protection against lightning.Part 3: Physical damage to structures and life hazard
GB/T 33588.2 Lightning protection system components (LPSC)—Part 2: Requirements for air-termination systems,down-conductors and earth electrodes
GB/T 21697-2022 history
2022GB/T 21697-2022 Insulation coordination of lightning overvoltage for low-voltage distribution wiring and electronic systems
2008GB/T 21697-2008 Insulation coordination of Low voltage power line and electronic system