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.
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 .
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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