For laying in、in tunnels and in cable trench, unable to bear external mechanical forces. Single core cable in magnetic duct is not permissible.
For laying in、in tunnels and in cable trench, unable to bear external mechanical forces. 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。