Double shielding - Class B
Conventional coaxial cables (RG-6) Double shielding - Class B
Double-shielded Class B coaxial cable
They provide two shielding layers and belong in EN 50117 standard Class B, according to their structural properties:
- For 5 MHz - 30 MHz => TI < 15 mΩ/m
- For 5 MHz - 1000 MHz => SA > 75 dB
- For 1000 MHz - 2000 MHz => SA > 65 dB
- For 2000 MHz - 3000 MHz => SA > 55 dB
Where the transfer impedance (TI) defines how effective the shielding is at low frequencies, while the shielding attenuation (SA) defines it in the 30 MHz-to-3000 MHz range.
CPR Eca: Copper clad steel/aluminium
Eca Euroclass - Copper-clad steel inner conductor and aluminium outer conductor
- The copper-clad steel inner conductor has a good mechanical behaviour
- The aluminium braid has a higher electric resistance and provides flexibility, improving malleability
- Eca Euroclass