Carrier 30KAV-ZE Series - Recommended Cable Sections

5.5 - Recommended cable sections
Wire sizing is the responsibility of the installer, and depends on
the characteristics and regulations applicable to each installation
site.
The cable selections given in this document are therefore only
given as a guide, and do not in any way incur Carrier's liability.
After wire sizing has been completed, using the certified
dimensional drawing, the installer must verify the appropriate
means of connection and dene any modications necessary on
site.
The connections provided as standard for the customer-supplied
power supply cables, on the main disconnect switch, are designed
for the number and type of cross sections given in the second
column of the table below.
The calculations have been performed using the maximum
possible current on the machine (see electrical data notes table).
The calculations of favourable and unfavourable cases have been
performed using the maximum current for each unit (see electrical
data notes table). The study includes the standardised installation
cases according to IEC 60364: Cable with PVC (70°C) or XLPE
(90°C) insulation with copper core; tted in accordance with table
52c of the standard. The maximum ambient temperature taken
into consideration for this study is 46°C. The given maximum length
is calculated to limit the voltage drop to 5%.
IMPORTANT: Before connecting the main power cables
(L1-L2-L3),itisimperativetocheckthecorrectorderofthe
3phasesbeforeconnectingtothemaindisconnect/isolator
switch.
Minimum and maximum cable section selection table for connection to 30KAV-ZE / 30KAVPZE units
30KAV-ZE
0350A - 1300A
/
30KAVPZE
0350A - 800A
Max. connectable section
(1)
Calculation of favourable case:
- Suspended overhead line (standardized
routing no. 17)
- Cable insulated to 90°C
- Copper conductor (Cu)
Calculation of unfavourable case
- Conductors in ducts or multi-conductor
cables in closed conduits (standardized
routing no. 41)
- Cable insulated to 70°C when possible
- Copper conductor (Cu)
Connected
from the side
Connected
from
underneath
Section
(2)
Max length for a
voltage drop <5%
Cable
type
(3)
Section
(2)
Max length for a
voltage drop <5%
Cable
type
(3)
qty x mm²
(per phase)
qty x mm²
(per phase)
m -
qty x mm²
(per phase)
m -
Standard unit
350A 4 x 240 3 x 240 1 x 150 230 90 °C 2 x 150 420 70 °C
400A 4 x 240 3 x 240 1 x 150 210 90 °C 2 x 185 450 70 °C
450A 4 x 240 3 x 240 1 x 185 240 90 °C 2 x 185 420 70 °C
500A 4 x 240 3 x 240 1 x 240 260 90 °C 2 x 240 460 70 °C
550A 4 x 240 3 x 240 1 x 240 240 90 °C 2 x 240 430 70 °C
600A 4 x 240 3 x 240 2 x 120 230 90 °C 3 x 240 480 70 °C
650A 4 x 240 3 x 240 2 x 150 230 90 °C 3 x 240 420 70 °C
750A 4 x 240 3 x 240 2 x 185 250 90 °C 4 x 240 440 70 °C
800A 4 x 240 3 x 240 2 x 185 230 90 °C 4 x 240 410 70 °C
900A 4 x 300 3 x 240 2 x 240 270 90°C 4 x 240 400 70°C
1000A 4 x 300 3 x 240 2 x 240 240 90°C 4 x 300 400 70°C
1100A 4 x 300 3 x 240 3 x 150 220 90°C 4 x 185 300 90°C
1200A 4 x 300 3 x 240 3 x 185 230 90°C 4 x 240 310 90°C
1300A 4 x 300 3 x 240 3 x 240 240 90°C 4 x 300 310 90°C
Minimum and maximum cable section selection table for connection to 30KAVIZE units
30KAVIZE
Max. connectable section
(1)
Calculation of favourable case:
- Suspended overhead line (standardised
routing no. 17)
- Cable insulated to 90°C
- Copper conductor (Cu)
Calculation of unfavourable case
- Conductors in ducts or multi-conductor
cables in closed conduits (standardised
routing no. 41)
- Cable insulated to 70°C when possible
- Copper conductor (Cu)
Connected
from the side
Connected
from
underneath
Section
(2)
Max length for a
voltage drop <5%
Cable
type
(3)
Section
(2)
Max length for a
voltage drop <5%
Cable
type
(3)
qty x mm²
(per phase)
qty x mm²
(per phase)
m -
qty x mm²
(per phase)
m -
Standard unit
500 4 x 240 3 x 240 1x 240 240 90°C 2x 240 430 70°C
800 4 x 240 3 x 240 2x 185 230 90°C 4 x 240 410 70°C
1100 4 x 300 3 x 240 3 x 150 220 90°C 4 x 185 300 90°C
1250 4 x 300 3 x 240 3 x 240 240 90°C 4 x 300 310 90°C
(1) Connection capacities currently available for each machine. These are dened according to the connection terminal size, the electrical/control box access opening
dimensions and the available space inside the electrical/control box.
(2) Selection simulation result considering the hypotheses indicated.
(3) If the maximum calculated section is for an XLPE 90°C cable type, this means that a selection based on a PVC 70°C cable type can exceed the connection capacity
actually available. Special attention must be given to selection.
NOTE : The currents considered are given for a machine without option.
5 - ELECTRICAL CONNECTIONS
32