You can use a self-made tool to connect all PV– cables together through an adapter to
test the insulation resistance between all PV– cables of a device and the ground at a
time.
Figure 5-27 Testing the insulation resistance between all PV– cables and the
ground
Step 7 Insert the positive and negative connectors into the corresponding DC positive and
negative input terminals of the solar inverter.
Figure 5-28 Connecting DC input power cables
SUN2000-(100KTL, 110KTL, 115KTL)-M2
User Manual 5 Electrical Connections
Issue 07 (2023-04-30) Copyright © Huawei Technologies Co., Ltd. 67
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