Bus Cables

Bus Cables

Profibus L2 Direct Burial

Bus Cables

Application:

This system cable is used to interconnect L2-BUS components. This cable is an economical solution for the cell and field area. For the information exchange between different automation systems as well as for communication with the connected decentralized field units, serial field bus systems are used. The above mentioned type is suitable for underground installation and is equipped with a special PVC/PE jacket.

Construction:

Type/Area of Application Underground Laying
Cable Construction 1x2x0.64 mm
Inner Conductor Diameter 1 Copper, bare (AWG 22/1)
Conductor Insulation Foam-Skin-PE
Conductor Colors 1 Red, green
Stranding Element 2 conductors + 2 fillers stranded together
Shielding 1 Polyester foil over stranded bundle
Shielding 2 Polyester foil, aluminum lined
Total Shielding Copper braid, tinned
Inner Jacket Material PVC
Outer Jacket Material PE
Outer Diameter 10.0 mm ± 0.2 mm
Outer Jacket Color Black

Electrical Data:

Characteristic Impedance @3-20MHz 150 Ω ± 10 Ω
Conductor Resistance 57.1 Ohm/km max.
Insulation Resistance 1.00 GOhm x km min.
Mutual Capacitance @1KHz 30.0 nF/km nom.
Working Voltage  Max: 250 V
Test Voltage 1.5 kV
Attenuation 9.6 kHz 2.1dB/km
38.4 kHz 3.1dB/km
3.0 MHz 18.2dB/km
20.0 MHz 47.0dB/km

Technical Data:

Weight approximately 92.0 kg/km
Min. Bending Radius for Laying 18 x OD mm
Operating Temperature Range, min. -40 °C
Operating Temperature Range, max. +70 °C