
ZTT offers a comprehensive copper leaky cable, capable of producing 1/2″, 7/8 “, 1-1/4”, 1-5/8 “. ZTT has won the single championship for leaky cable and has the first simulation tunnel testing system in China.
Construction of Cable
|
Item |
Diameter(mm) | Material |
| Inner conductor | 9.0±0.3 |
Copper tube |
|
Insulation |
/ | Foamed polyethylene |
| Outer copper conductor | 23.5±0.3 |
Overlapping corrugated copper foil |
|
Jacket |
25.8±0.4 |
PE / LSZH flame retardant polyolefin |
Mechanical Characteristics
|
Item |
Unit | Nominal value |
| Min. static bending radius | mm |
350 (Single bend) |
|
Installation temperature |
℃ | -25~+60 ℃ |
| Operation temperature | ℃ |
-40~+85 ℃ |
|
Storage temperature |
℃ |
-70~+85 ℃ |
Electrical Characteristics
|
Item |
Specification | |
| Characteristics impedance |
50±2Ω |
|
|
Velocity |
89% | |
| Min. insulation resistance |
5000 MΩ·km |
|
|
Operation frequency |
50~500MHz | |
| Stop band |
300-350 MHz |
|
|
Dielectric strength |
15000V( DC,1 min.) | |
| Jacket spark test voltage |
8000V(AC) |
|
|
VSWR |
1.30 | |
| Peak power |
91kw |
|
|
Coupling loss test direction |
≤300MHz | Orthogonal direction |
| Coupling loss test direction | ≥300MHz |
Parallel direction |
Note: The tolerance of VSWR shall be ±3%.
Attenuation
|
Frequency(MHz) |
Attenuation (±10%)(dB/100m) |
Coupling loss (50%/95%,2m)(±5dB) |
|
75 |
1.2 | 61/67 |
| 100 | 1.3 |
61/66 |
|
150 |
1.6 | 72/77 |
| 300 | 3.0 |
66/73 |
|
350 |
4.2 | 57/64 |
| 400 | 3.8 |
58/64 |
|
450 |
3.9 |
54/60 |
Note: The tolerance of Attenuation shall be ±10%, and the tolerance of Coupling loss shall be ±5dB.
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