Alternate Power Cable Types - ABB ACQ580-07 Hardware Manual

Alternate power cable types

Cable type
PVC
Four-conductor cabling in PVC
conduit or jacket (three phase
conductors and PE)
EMT
Four-conductor cabling in met-
al conduit (three phase con-
ductors and PE), eg, EMT, or
four-conductor armored cable
Well-shielded (Al/Cu shield or
armor) four-conductor cable
(three phase conductors and
a PE)
PE
A single-core cable system:
three phase conductors and
PE conductor on cable tray
L1 L2 L3
L2 L3 L3 L1 L1 L2
Preferable cable arrangement
to avoid voltage or current un-
balance between the phases
Guidelines for planning the electrical installation 89
Use as input power cabling
Yes with phase conductor
smaller than 10 mm 2 (8 AWG)
Cu.
Yes
Yes
Yes
WARNING!
If you use unshielded
single-core cables in an
IT network, make sure
that the non-conductive
outer sheath (jacket) of
the cables have good
contact with a properly
grounded conductive sur-
face. For example, install
the cables on a properly
grounded cable tray. Oth-
erwise voltage may be-
come present on the non-
conductive outer sheath
of the cables, and there
is even a risk of an elec-
tric shock.
Use as motor cabling
Yes with phase conductor
smaller than 10 mm 2 (8 AWG)
Cu, or motors up to 30 kW
(40 hp).
Note: Shielded or armored
cable, or cabling in metal con-
duit is always recommended to
minimize radio frequency inter-
ference.
Yes with phase conductor
smaller than 10 mm 2 (8 AWG)
Cu, or motors up to 30 kW
(40 hp)
Yes with motors up to 100 kW
(135 hp). A potential equaliza-
tion between the frames of mo-
tor and driven equipment is re-
quired.
No