SmartLi 3.0 Quick Guide (Short-Term Backup Power)
04
Installing Output Power Cables
Preparing Power Cables
1. Remove the cable glands and sealing plugs based on site requirements.
2. Cut cables and crimp terminals.
a. Measure the cable length and mark the position where a cable needs to be
cut and the direction of the DT terminal. (Ensure that the installation surface
of the DT terminal is parallel to the copper bar.)
b. Remove certain gland sealing plugs. Route the cable through the gland nut and
sealing plugs.
Mark the DT
terminal direction.
Mark the cable
cutting position.
Gland
Model
Sealing Plug to Be Removed
Supported Cable Diameter
(Including the Insulation
Layer, Unit: mm)
Recommended
Cable Size
(Unit: mm
2
)
M63
(18–44)
Innermost layer (white)
18–24
150
Innermost layer (white), second-
to-last layer (red)
24–30
185, 240
Innermost layer (white), second-
to-last layer (red), and third-to-
last layer (orange)
30–37
-
M50
(16–38)
Innermost layer (white)
16–20
-
Innermost layer (white), second-
to-last layer (red)
20–26
150
Innermost layer (white), second-
to-last layer (red), and third-to-
last layer (orange)
26–32
185
The single-core 90
°
C-resistant flexible copper cable is used as an example in the table to
illustrate which sealing plugs need to be removed. The sealing plugs to be removed depend
on the actual cable diameter (including the insulation layer). Remove sealing plugs only
when necessary. Otherwise, the sealing performance will be affected.
c. Strip the cable and crimp the DT terminal.
Marked DT terminal
direction
Marked cable cutting
position
1. Set the switch based on the actual load.
Installing Output Power Cables
250 kW < Load of a
single battery
cabinet ≤ 300 kW
200 kW < Load of a
single battery
cabinet ≤ 250 kW
Load of a single battery
cabinet ≤ 200 kW
2. Install power cables.
UPS Without a Neutral Wire
UPS With a
Neutral Wire
Connect cables correctly
to avoid battery short
circuits and sparks.
Nut
Terminal
Spring
washer
Bolt
Flat
washer
Nut
Terminal
Spring
washer
Bolt
Flat
washer
Nut
Terminal
Spring
washer
Bolt
Flat washer
Nut
Terminal
Spring
washer
Bolt
Flat
washer
3. Reinstall the sealing plugs. (The sealing plugs must be completely inserted into the gland
to facilitate the reinstallation of the gland nut.)
4. Reinstall the gland nut with a torque of 10 N·m (M50) or 12 N·m (M63).
Connecting Communications Cables
•
When reinstalling the communications cable box, prevent the cable box
from pressing the cables.
•
RS485 cables and FE cables must be shielded cables.
•
If more than eight SmartLi cabinets are connected in parallel, a maximum
of four 15 m parallel communications cables are supported.
Communications cable route
Master SmartLi cabinet
(with an LCD)
Slave SmartLi cabinet
(without an LCD)
Connecting Communications Cables
(UPS Communication Involved, Using Three Parallel Cabinets as an Example)
Connecting Communications Cables
(UPS Communication Not Involved, Using Three Parallel Cabinets as an Example)
2
210 kW < Load of a
single battery
cabinet ≤ 250 kW
170 kW < Load of a
single battery
cabinet ≤ 210 kW
Load of a single battery
cabinet ≤ 170 kW
7+7, 7+0, 8+8, and 8+0 Scenarios
6+6 and 6+0 Scenarios
