结构内导体光滑铜管Φ9.0mm绝缘发泡PEΦ22.5mm外导体波纹铜管加槽口Φ24.9mm护套PE/低烟无卤Φ27.7mm电气和物理性能特性阻抗50&plu***n;3Ohm标称电容76pF/m传播速度88%绝缘电阻>5000Mohm.Km内导体电阻1.0Ohm/Km外导体电阻1.2Ohm/Km安装温度范围-40°C-+60°C工作温度范围-55°C-+85°C电缆重量(大约)520kg/km/570kg/km衰减频率(MHZ)衰减(DB/100M)衰减(DB/100FT)751.20.371501.70.524503.10.958004.31.319004.61.4018004.91.4922007.82.3824008.62.62)