结构内导体裸铜/铜包钢(CCS)Φ1.02mm绝缘发泡PEΦ4.60mm外导体(屏蔽1)铝箔Φ4.75mm屏蔽覆盖率1100%外导体(屏蔽2)铝丝编织(类型1)64x0.12mm屏蔽覆盖率245%外导体(屏蔽2)铝丝编织(类型2)48x0.12mm屏蔽覆盖率235%护套PVC/FR-PVCΦ6.80mm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85%绝缘电阻>5000Mohm.Km内导体电阻21.4Ohm/Km外导体电阻-Ohm/Km额定温度70°C电缆重量(大约)-kg/km屏蔽有效性>70dB(5-1000MHz)衰减频率(MHZ)衰减(DB/100M)衰减(DB/100FT)504.61.401007.12.162009.02.7440013.03.9680019.05.7995020.96.37135025.57.77175029.69.02215033.410.18300040.612.38回波损耗51000MHz>22dB10002000MHz>20dB)