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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.
Supported Cable Diameter
Gland
Sealing Plug to Be Removed
(Including the Insulation
Model
Layer, Unit: mm)
Innermost layer (white)
18–24
Innermost layer (white), second-
24–30
M63
to-last layer (red)
(18–44)
Innermost layer (white), second-
to-last layer (red), and third-to-
30–37
last layer (orange)
Innermost layer (white)
16–20
Innermost layer (white), second-
20–26
M50
to-last layer (red)
(16–38)
Innermost layer (white), second-
to-last layer (red), and third-to-
26–32
last layer (orange)
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 cable cutting
Marked DT terminal
position
direction
SmartLi 3.0 Quick Guide (Short-Term Backup Power)
Installing Output Power Cables
1. Set the switch based on the actual load.
7+7, 7+0, 8+8, and 8+0 Scenarios
6+6 and 6+0 Scenarios
Mark the DT
terminal direction.
Mark the cable
cutting position.
Recommended
Cable Size
2
(Unit: mm
)
2. Install power cables.
150
UPS Without a Neutral Wire
185, 240
-
-
150
185
UPS With a
Neutral Wire
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
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
Terminal
Terminal
Spring
Spring
Nut
washer
Nut
washer
Bolt
Bolt
Flat
Flat
washer
washer
Connect cables correctly
to avoid battery short
circuits and sparks.
Terminal
Terminal
Spring
Spring
Nut
Nut
washer
washer
Bolt
Bolt
Flat
Flat washer
washer
2
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
Connecting Communications Cables
(UPS Communication Involved, Using Three Parallel Cabinets as an Example)
Master SmartLi cabinet
(with an LCD)
Connecting Communications Cables
(UPS Communication Not Involved, Using Three Parallel Cabinets as an Example)
Slave SmartLi cabinet
(without an LCD)
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