Huawei LUNA2000-2.0MWH-1H0 - Page 99

Step 3 Connect the DC power cables.
NO TICE
● The screw assembly whose model is subject to the delivery should be tightened
according to the corresponding standard torque.
● Partially tighten the nuts of the DC power cables to a torque of 5 N·m when
securing the cables.
● The wiring terminal must be installed with heat-shrink tubing at the crimping
area of the cable conductor to ensure that the electrical clearance between the
conductors is greater than 20 mm.
● Lay out the DC power cables according to the design, route the cables to the
wiring positions on the corresponding switches, and label the cables.
NO TE
● Tighten the nuts using the socket wrench with an extension rod. The length of the
extension rod is greater than 30 cm. Secure the screw assembly using an adjustable
wrench.
● After connecting the DC power cables, ensure that the OT terminals are properly
attached to the copper bar and that the DC power cables point vertically downwards.
Figure 5-3 DC power cable positions at the bottom
(1) DC power cable
hole
(2) AC input power
cable or ground cable
hole
(3) Optical cable or FE
communications cable
hole
(4) UPS or RS485 cable
hole (reserved)
CA UTION
1. Pre-install nuts according to the recommended torque of 47 N·m.
2. Verify that the torque of the installed bolts is 47 N·m using a torque wrench.
3. Mark the nuts whose torque has been
veried using a marker.
NO TE
When armored cables are used, it is recommended that the armored layer be grounded at
the opposite side.
LUNA2000-2.0MWH-1H0, 2H0 Smart String ESS
User Manual 5 Installing Cables
Issue 02 (2021-11-15) Copyright © Huawei Technologies Co., Ltd. 91