6 Electrical installation
Wiring to a host
EDK82ZAFIC−010 DE/EN/FR 4.054
H2 VerdrahtLeitrechner−SpezifikInterbus
Specification of the transmission cable
Specified characteristic Data
Number of conductors 3 x 2 (twisted in pairs, with common shielding)
Conductor cross−section Min. 0.2 mm
2
Specific resistance
Max. 9.6 W / 100 m
Characteristic impedance
120 W ± 20 % for f = 0.064 MHz
100 W ± 15 W for f > 1 MHz
Electric strength
l Conductor / conductor
l Conductor / shield
1000 V
eff
, 1 min
Insulation resistance (according to
electric strength test)
Min. 150 MW / km
Coupling resistance for f = 30 MHz
Max. 250 mW / m
Effective capacitance for 800 Hz Max. 60 nF / km
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