RD-Y(St)Y

• Cores twisted to pairs (approx. 20 pitch/m)
• 4 pairs twisted to bunch
• Bunches twisted in concentric layers
• Electrostatic screen of plastic coated aluminium foil with tinned drain-wire 0,5 mm² (7 x 0,3 mm)
• Color grey (RAL 7032) or blue (RAL 5015)
• PVC self-extinguishing and flame resistant, according to DIN VDE 0482 part 265-2-1/EN 50265-2-1/IEC 60332-1

Technical data

• Special PVC for data cable according to DIN VDE 0815
• Conductor resistance (loop) max. 73,6 Ω/km
• Temperature range flexing from -5°C to +50°C; fixed from -30°C to +70°C
• Operating voltage (operating value) max. 600V
• Test voltage a.c. 50 Hz core/core 2000 V, core/screen 1000 V
• Insulation resistance core/core min. 100 MΩ/km, core/screen min. 100 MΩ/km
• Mutual capacitance at 800 Hz max. 100 nF/100m (this value can be exceeded by 20 % in cables up to 4 pairs)
• Impendace at 1 kHz approx. 370 Ω, at 10 kHz approx. 130 Ω
• Capacity unbalance at 800 Hz max 100 pF/100m (20% of the values, but one value up to 400 pF is allowed)
• Line attenuation at 1 kHz approx. 1,2 dB/km, at 10 kHz approx. 3,0 dB/km
• Cross-talk attenuation at 10 kHz and cable lenght of 500 m min. 60 dB
• Minimum bending radius approx. 7,5 x cable diameter

Application

Appliance and data transmission cables RD-Y(St)Y are used in measuring and control technology, for example in control centers of industrial lines and power plants. The static screen protects the transmission circuits against outer electrical intreferences. Pairs are twisted with short pitches and different lenghts that leads to good crosstalk attenuation values in a bunch. Cables are designed for for transmission of analog and digital signals up to frequencies of approx. 10 kHz. These cables offer advantages of fast and economic installation. This solderless conecting technique is based on a compression termination that uses a spring-clip for the connection of the cable to a square rigid post withot pre-stripping. For this technique it is necessary to have an exact 7-core stranded PVC conductor and a semi-rigid PVC.

Note:

• CE = the product is conformed with the EC Low-Voltage Directive 73/23/EEC.
• Halogen-free type RD-H(St)H available on request, see section.
• Conforms to RoHS.

Technical characteristics