● 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 AC input 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 AC input power cables according to the design, route the cable to
the wiring positions on the corresponding switches, and label the cables.
● After connecting the DC power cables, ensure that the OT terminals are
properly attached to and aligned with the copper bar, and that the DC power
cables point vertically downwards.
Figure 5-22 AC input 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)
1. Pre-install nuts according to the recommended torque of 27 N·m.
2. Verify that the torque of the installed bolts is 27 N·m using a torque wrench.
3. Mark the nuts whose torque has been
veried using a marker.
LUNA2000-2.0MWH Series Smart String ESS
User Manual 5 Installing Cables
Issue 08 (2022-11-15) Copyright © Huawei Technologies Co., Ltd. 127
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