结构内导体铜包铝Φ5.16mm绝缘发泡PEΦ20.03mm外导体焊接光滑铝管Φ21.84mm护套PE/低烟无卤Φ24.38mm自承单元可选电气和物理性能特性阻抗75&plu***n;5Ohm标称电容50pF/m传播速度88%绝缘电阻>5000Mohm.Km内导体电阻1.90Ohm/Km外导体电阻1.06Ohm/Km安装温度范围-40°C-+85°C工作温度范围-40°C-+85°C屏蔽有效性135dB电缆重量(大约)316kg/km衰减频率(MHZ)衰减(DB/100M)衰减(DB/100FT)50.300.09501.050.322502.300.703002.490.763502.720.834002.890.88)