Application
These data cables with twisted pairs are used in particular for the interference-free transmission of data and signals over longer distances. The high transmission rate are suitable for RS 422 and RA 485 interfaces. These cables are suitable for fixed installations as well as for flexing Application, for free movement without forced motion and without tensile stress , in dry and moist environments, though not for outdoor Application (sheath colour grey). The version … Yv, colour black with reinforced outer sheath, is suitable for installation in the ground.
Specifications
Standard : Based on VDE 0812
Operating top level Voltage : Max. 250 V (not for purpose of high current and power installation)
Test Voltage : Core/core 2000 V. Core/screen 1000 V
Insulation Resistance : Min. 5000 GΩ x cm
Mutual Capacitance : Max. 60 nF/km
Characteristic Impedance : 100 Ohm ±15
Cross-talk Attenuation : Upto 1 MHz min. 50 dB. Upto 10 MHz min. 40 dB
Inductance : Approx. 0.65 mH/km
Temperature Range : Flexing -5°C to +70°C. Fixed installation -30°C to +70°C
Minimum Bending Radius : Flexing 15 x cable ø. Fixed installation 6 x cable ø
Cable Construction
Bare copper stranded wires, 7-wires
Conductor make-up for
0.22 mm² = 7 x 0.20 mm
0.34 mm² = 7 x 0.25 mm
0.5 mm² = 7 x 0.30 mm
Conductor resistance (loop) at 20°C
0.22 mm² = 186 Ω/km (max.)
0.34 mm² = 115 Ω/km (max.)
0.5 mm² = 78.5 Ω/km (max.)
Metal coated copper is also offered on request.
Core insulation of PE (Polyethyelene).
Core colours as per DIN 47100.
Cores stranded in pair with optimal lay-length.
Pair stranded in layers with optimal lay-length.
Plastic coated aluminium foil wrap.
Tinned copper braided screen, approx 85% coverage.
Special PVC outer sheath TM2, to EN 50363-4.1.
Sheath colour grey (RAL 7032).
Type …… Yv with reinforced outer sheath of PVC for underground laying.
Also available in armour on request.
Properties
Flame retardant to EN 60332-1-2.
The twisted-pair lay-up prevents electrical unbalances within the cable and this thus effectively suppresses cross-talking effects.