
Reference Standards GB/T 12706.1-2020 “Power Cables with Extruded Insulation and Their Accessories for Rated Voltages from 1 kV (Um=1.2 kV) to 35 kV (Um=40.5 kV) – Part 1: Cables for Rated Voltages of 1 kV (Um=1.2 kV) and 3 kV (Um=3.6 kV)”; GB/T 19666-2019 “General Rules for Flame-retardant and Fire-resistant Wires, Cables or Optical Cables”; IEC 60502-1 “Power Cables with Extruded Insulation for Rated Voltages from 1 kV (Um=1.2 kV) to 30 kV (Um=40.5 kV) – Part 1: Cables for Rated Voltages of 1 kV (Um=1.2 kV) and 3 kV (Um=3.6 kV)”;