Huawei SmartLi 3.0 - Power Cables

Cable Name Description
RS485 cable or FE
cable
If an upper-layer management system needs to be
connected, prepare a shielded network cable by
yourself.
Battery module
communications
cable
Four cables are preinstalled in the SmartLi cabinet, and
the others are delivered with the cabinet.
EPO cable If an EPO button needs to be connected, prepare a 22
AWG cable by yourself.
5.2.3 Power Cables
NO TICE
● The bolt specications in the tables apply only to one end of the SmartLi cable.
For details about the bolt specications for the other end, see the
corresponding UPS manual.
● When selecting, connecting, and routing power cables, follow local safety
regulations and rules.
● When the external conditions change, for example, the cable layout or ambient
temperatures, perform verication in accordance with the IEC-60364-5-52 or
the local regulations.
● Cable type: single-core 90°C soft power cable with a copper conductor.
● It is recommended that the cables between the SmartLi and the UPS be 50 m
or shorter. In a parallel SmartLi system, the power cables for each cabinet
should have the same length and specications.
● If more than eight SmartLi cabinets are connected in parallel, a maximum of
four 15 m parallel communications cables are supported.
Table 5-2 Recommended cross-sectional areas for power cables (applicable to 7+7, 7+0, 8+8, and
8+0 scenarios)
Item
Output Power/
Cabinet ≤ 200
kW
200 kW <
Output Power/
Cabinet ≤ 250
kW
250 kW < Output
Power/Cabinet ≤ 300
kW
Battery Recommended
cross-sectional
area (mm
2
)
+ 150 185 240
N
a
150 185 240
– 150 185 240
PE 70 95 120
SmartLi 3.0
User Manual (Short-Term Backup Power) 5 Installation and Cable Connection
Issue 10 (2024-01-31) Copyright © Huawei Digital Power Technologies Co., Ltd. 60