Alternate Power Cable Types - ABB ACS580 Series Hardware Manual

108 Guidelines for planning the electrical installation

Alternate power cable types

Cable type
Four-conductor cable in
plastic jacket (three phase
conductors and PE)
Four-conductor armored
cable (three phase conduct-
ors and PE)
Shielded (Al/Cu shield or ar-
1)
mor) four-conductor cable
(three phase conductors and
a PE)
1) Armor may act as an EMC shield, as long as it provides the same performance as a concentric EMC
shield of a shielded cable. To be effective at high frequencies, the shield conductivity must be at least
1/10 of the phase conductor conductivity. The effectiveness of the shield can be evaluated based on
the shield inductance, which must be low and only slightly dependent on frequency. The requirements
are easily met with a copper or aluminum shield/armor. The cross-section of a steel shield must be
ample and the shield helix must have a low gradient. A galvanized steel shield has a better high-frequency
conductivity than a non-galvanized steel shield.
Use as input power cabling
Yes with phase conductor
smaller than 10 mm 2 (8 AWG)
Cu.
Yes
Yes
Use as motor cabling and as
brake resistor 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
conduit is always recommen-
ded to minimize radio fre-
quency interference.
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
motor and driven equipment
is required.