 |
-5 |
-7 |
-9 |
-12 |
结
构
尺
寸 |
内导体直径(mm)
diameter of inner conductor |
1.00±0.02 |
1.66±0.02 |
2.15±0.02 |
2.77±0.02 |
绝缘外径(mm)
outside diameter of insulation |
4.80±0.20 |
7.25±0.20 |
9.00±0.20 |
11.50±0.20 |
电缆外径(mm)
cable diameter |
7.20±0.30 |
10.30±0.30 |
12.30±0.30 |
15.00±0.30 |
电
气
性
能 |
绝缘电阻（KΩ.Km)
insulation resistance |
20000 |
20000 |
20000 |
20000 |
特性阻抗(Ω)
characteristic impedance |
75±3.0 |
75±2.5 |
75±2.0 |
75±2.0 |
缆芯介电强度(KV)
dielectric intensity of insulation |
1.6 |
1.6 |
1.6 |
1.6 |
护套介电强度(KV)
dielectric intensity of protective sleeve |
3 |
4 |
6 |
8 |
回波损耗
echo loss
≥dB |
VHF |
20 |
20 |
20 |
20 |
| UHF |
18 |
18 |
18 |
18 |
