● According to IEC 62109, to ensure the safe operation of the SUN2000 in the
case of ground cable damage or disconnection, properly connect the ground
cable of the SUN2000 and ensure that it meets at least one of the following
requirements before the grounding detection function becomes invalid:
– If the PE terminal is not connected to the AC connector, use a single-core
outdoor copper cable with a conductor cross-sectional area of at least 10
mm
2
as the PE cable on the chassis.
– Use cables with the same diameter as the AC output power cable and
ground the PE terminal on the AC connector and the ground screws on
the chassis.
● In some countries and regions, the SUN2000 must have additional ground
cables. Use cables with the same diameter as the AC output power cable and
ground the PE terminal on the AC connector and the ground screws on the
chassis.
Procedure
Step 1 Crimp an OT terminal.
● Avoid scratching the core wire when stripping a cable.
● The cavity formed after the conductor crimp strip of the OT terminal is crimped
must wrap the core wires completely. The core wires must contact the OT
terminal closely.
● Wrap the wire crimping area with heat shrink tubing or insulation tape. The
heat shrink tubing is used as an example.
● When using a heat gun, protect the equipment from being scorched.
Figure 5-2 Crimping an OT terminal
SUN2000-(2KTL-6KTL)-L1
User Manual 5 Electrical Connection
Issue 10 (2023-02-13) Copyright © Huawei Technologies Co., Ltd. 44
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