敷设在室内、电缆沟、管道、竖井等能承受较大机械拉力等固定场合。

For laying indoors, in trenches, in ducts and down well , able tobear heavier pulling force, andfor fixed installation.

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敷设在室内，隧道，电缆沟，管道等固定场合。

For laying indoor, in tunnels, ducts, conduit etc.

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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。

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

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