
Reference Standards GB/T 12706.3-2020 “Extruded Insulation Power Cables and Accessories with Rated Voltages from 1kV (Uₘ=1.2kV) to 35kV (Uₘ=40.5kV) – Part 3: Cables with Rated Voltage 26/35kV (Uₘ=40.5kV)”; GB/T 15065-2019 “General Rules for Flame-retardant Control Cables or Cables or Optical Cables”.