For laying indoors, in tunnel or cable trench, unable to bear external mechanical forces, Singlecore cable in magnetic duct is not permissible.

室内、隧道、电缆沟等场所，不能承受机械外力，单芯电缆不允许敷设在磁性管道中。

youdao

For laying indoors, in tunnels or cable trench, unable to bear external mechanical forces. Singlecore cable in magnetic duct is not permissible.

室内、隧道及电缆沟等场所，不能承受机械外力。单芯电缆不允许敷设在磁性管道中。

youdao

For laying indoors, in tunnels or cable trench, unable to bear external mechanical forces. Singlecore cable in magnetic duct is not permissible.

室内、隧道及电缆沟等场所，不能承受机械外力。单芯电缆不允许敷设在磁性管道中。

youdao