For laying in doors, in tunnel and in cable trench, unable to bear external mechanical forcess. Single-core cable in magnetic duct is not permissible.
For laying in doors, in tunnel and in cable trench, unable to bear external mechanical forcess. Single-core cable in magnetic duct is not permissible.
室内、隧道及电缆沟等不能承受机械外力的场所。单芯电缆不允许敷设在磁性管道中。