1. System installation requirements
1-16
TI 30A30A10-01EN
1.5
Cabling requirements
The following requirements must be fulfilled when laying power and signal cables (These
are shielded cables unless specified).
Any signal cable used for high-voltage, high-frequency signals (inductive load ON/ OFF)
must be separated from other signal cables.
n
Separator
Provide a separator between power and signal cables as illustrated below:
Signal
cables
Power
cables
Separator (steel plate)
Protective grounding system
(different from the system grounding for the enclosure)
F010501.ai
Figure Separator used in duct/pit
n
Distance between cables
If a separator cannot be used, keep a distance between signal cables and power cables.
The distances between cables due to operating voltages and currents are shown below.
Table Required distance between Power & Shielded signal cables
Operating voltage
Operating current
Distance
240 V AC max.
10 A max.
150 mm min.
240 V AC max.
10 A min.
600 mm min.
240 V AC min.
10 A max.
600 mm min.
240 V AC min.
10 A min.
Cannot be laid together.
Power cables
F010502.ai
150 mm
or more
Signal cables
Signal cables
Power cables
150 mm
or more
Figure Distance between cables under pit/free-access floor
Feb. 26, 2018-00
