All-Insulated Radio Frequency Cable
RK 75-4-11 OKZ, RK 75-4-15 OKZ
Application
The cables are intended for inner installation in security alarm and surveillance systems, satellite television systems, for transmitting a radio frequency signal from a receiving antenna to a television, as switching microwave devices in the frequency range from 5 to 3000 MHz.
Cable design
1. Conductor: copper 0.72 mm
2. Insulation: PE
3. Shield Material: tinned copper braid
4. Sheath: RK 75-4-11 - UV-stabilized PE; RK 75-4-15 - PVC
Installation and operation conditions
Temp Rating:
- Installation Temp Rating: -10 °C ... +60 °C;
- Operating Temp Range: -50 °C ... +60 °C.
Min Bend Radius: ≥ 10 cable diameters
Standards
Main technical and mechanical characteristics
| Electrical parameters at 20°C | Frequency, kHz | Value |
| Test voltage for 1 min, kV- between the inner and outer conductor | 0,05 | 5,0 |
| Test voltage of the beginning of internal discharges in isolation, kV | 0,05 | 2,5 |
| Electric resistance of internal conductor, Ohm / km, no more | D.C. | 45 |
| Impedance, ohm | from 5 000 to 3 000 000 | 75 ± 2,5 |
| Working capacity, pF / m | from 0,8 to 1,0 | 67,5 ± 2,5 |
| Attenuation coefficient, nom., DB / 100m | 200 000 1 000 000 |
18,0 51,5 |
Nomenclature and mass-dimensional characteristics
| Cable brand | Outside diameter, mm | Weight, kg/km |
| RK 75-4-11 OKZ | 6,8 | 49 |
| RK 75-4-15 OKZ | 6,8 | 54 |