ABB ACS880 Series, Инструкции по планированию электромонтажа

Страница: 21 / 36

￭ Power cable types
Preferred power cable types
This section presents the preferred cable types. Make sure that the selected cable type also
complies with local/state/country electrical codes.
Use as motor cabling Use as input power cabling Cable type
Yes Yes
„
„
PE
Symmetrical shielded (or armored)
cable with three phase conductors
and concentric PE conductor as
shield (or armor)
Yes Yes
„
„
PE
Symmetrical shielded (or armored)
cable with three phase conductors
and symmetrically constructed PE
conductor and a shield (or armor)
Yes Yes
„
„
PE
Symmetrical shielded (or armored)
cable with three phase conductors
and a shield (or armor), and separ-
ate PE conductor/cable
1)
1) A separate PE conductor is required if the conductivity of the shield (or armor) is not sufficient for the PE use.
Alternate power cable types
Use as motor cabling Use as input power cabling Cable type
Yes with phase conductor smaller
than 10 mm
2
(8 AWG) Cu, or motors
up to 30 kW (40 hp).
Yes with phase conductor smaller
than 10 mm
2
(8 AWG) Cu.
PVC
Note: Shielded or armored cable, or
cabling in metal conduit is always
recommended to minimize radio fre-
quency interference. Four-conductor cabling in PVC con-
duit or jacket (three phase conduct-
ors and PE)
Yes with phase conductor smaller
than 10 mm
2
(8 AWG) Cu, or motors
up to 30 kW (40 hp)
Yes
EMT
Four-conductor cabling in metal
conduit (three phase conductors and
PE), eg, EMT, or four-conductor ar-
mored cable
Electrical planning guidelines 21