clear distance meaning in Chinese

净距离

Keep a clear distance between underground electricity cables and other utility plant ( e . g . gas and water pipes , telecommunication cables , etc . )
地下电缆与其他公用设施(例如煤气及水管，电讯电缆等)之间需保持一定的距离。
Keep a clear distance of 1 m between the side of any distribution cable ( i . e . voltage below 66 kv ) and the bucket of a mechanical excavator , and for transmission cables ( i . e . voltage 66kv and above ) , the distance is extended to 3 m
在任何配电电缆(即电压在66千伏以下的电缆)的旁边与机械挖土机的铲斗之间保持1米的距离。如属输电电缆(即电压在66千伏或以上的电缆) ，这距离须增至3米。