文章来源：http://www.trcables.com/ 作者：上海嗨润 发布时间：：2018-01-24 11:16 浏览次数：次
Construction
|
Inner conductor |
Anealed copper |
Φ1.02 mm |
|
Dielectric |
Foam PE |
Φ4.57 mm |
|
Outer conductor (shield 1) |
Al-PES-Al foil |
|
|
Shield coverage |
100% |
|
|
Outer conductor (shield 2) |
Tinned copper |
|
|
Shield coverage |
60% |
|
|
Sheath |
PVC |
Φ6.8 - 13.9mm |
Electrical & Mechanical Characteristics
|
Impedance |
75±5 Ohm |
|
Nominal capacitance |
57 pF/m |
|
Velocity of propagation |
78% |
|
Insulation resistance |
>5000 Mohm.Km |
|
Inner conductor resistance |
11.5 Ohm/Km |
|
Outer conductor resistance |
5.5 Ohm/Km |
|
Operating temperature range |
-40 °C - +70 °C |
|
Cable weight (approx.) |
100 Kg/Km |
Attenuation
|
Frequency(MHz) |
Attenuation (dB/100 m) |
Attenuation (dB/100 ft) |
| 200 | 9.9 | 3.02 |
|
500 |
15.2 |
4.63 |
|
860 |
20.7 |
6.31 |
|
1000 |
22.5 |
6.86 |
|
1500 |
27 |
8.23 |
|
2000 |
30.8 |
9.39 |
|
2400 |
34.1 |
10.4 |
|
3000 |
39 |
11.89 |
