Relevant technical requirements for medium-voltage B1 class flame-retardant and fire-resistant power cables with rated voltages from 6kV (Um=7.2kV) to 35kV (Um=40.5kV).
T/JXWCA 0001-2023 history
2023T/JXWCA 0001-2023 "6kV-35kV Medium Voltage Class B1 Flame Retardant Fire Resistant Power Cable"