Itemmaterialdiameter(inch/mm) Inner conductorbare copper or cca0.108 2.74 Dietectricfoam pe0.285 7.24 First shieldbonded aluminum foil0.291 7.39 Second shieldtinned copper wire barid0.320 8.13 Jacketpvc or pe0.405 10.29 Electrical characteristics Capacitance(pf/m)78.4 Impedance(î©)50+/-3 Velocity of propagation(%)85.0 Return loss(db)0 Screening effectivense(db)90 Inner conductor dcr(î©/km)4.6 Outer shield dcr(ohm/km)5.4 Voltage withstand(volts dc)2500.0 Spark test(vrms)8000.0 Installation temp range -40 to +85 Operating temp range -40 to +85 Frequencymax attenuationmax attenuation (mhz)(db/100ft)(db/100m) 300.7 2.2 500.9 2.9 1501.5 5.0 2201.9 6.1 4502.7 8.9 9003.9 12.8 15005.1 16.8 18005.7 18.6 20006.0 19.6 25006.8 22.2 580010.8 35.5