敷设在室内、隧道及电缆沟内，电缆不能承受机械外力，电缆具有较强的抗电磁干扰和抗雷击性能。

For laying indoors, in tunnels and cable ditch, unable to bear external mechanical forces, has the strong property of anti electro-magnetic interference and lightning strike.

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室内、隧道、电缆沟内，或埋地敷设等，能承受一定机械外力，但不能承受大的拉力。

For laying indoors , in tunnel, cable trench, or direct in ground, able to bear external mechanicalforces, but unable to bear large pulling force .

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多根组合电缆安装敷设更完善简便，且对单根同轴电缆的机械保护更好。

The multi cables make you more easier and convenient, and well protect the single core.

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