Installing Dc Power Cables - Huawei SUN2000-330KTL-H1 User Manual

SUN2000-(330KTL-H1, 330KTL-H2)
User Manual
Step 5 Clear foreign matter from the maintenance compartment, close the maintenance
compartment door, and check that the cable holes at the bottom of the
maintenance compartment are sealed.
Figure 5-13 Closing a door
----End

5.5 Installing DC Power Cables

Precautions
● Before connecting DC input power cables, ensure that the DC voltage is within
● When the SUN2000 operates in grid-tied mode, do not perform maintenance
Ensure that the following conditions are met. Otherwise, the SUN2000 may be
damaged or even a fire may occur.
● The open-circuit voltage of each PV string must be lower than or equal to 1500
● The polarities of electric connections are correct on the DC input side. The
Issue Draft A
(2022-08-30)
D ANGER
the safe range (lower than 60 V DC) and that MAIN SWITCH and all DC
SWITCH of the SUN2000 are OFF. Otherwise, the high voltage may result in
electric shocks.
or operations on the DC input power cables, such as connecting or
disconnecting a PV string or a PV module in the PV string. Otherwise, electric
shocks or arcing (which may cause fire) may occur.
WARNING
V DC under any circumstances.
positive and negative terminals of a PV string connect to corresponding positive
and negative DC input terminals of the SUN2000.
Copyright © Huawei Technologies Co., Ltd.
5 Installing Cables
46