Huawei SUN2000 Series User Manual page 50

SUN2000-(29.9KTL, 33KTL-A, 36KTL, 42KTL)
User Manual
Requirements for OT/DT terminals:
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Figure 5-6 Requirements for OT/DT terminals
Procedure
Step 1 Remove the AC terminal cover, as shown in
Issue 11 (2019-06-08)
If a copper cable is used, use a copper wiring terminal.
If a copper-clad aluminum cable is used, use a copper wiring terminal.
If an aluminum alloy cable is used, use a copper to aluminum adapter terminal or an
aluminum wiring terminal with a copper to aluminum adapter washer.
Directly connecting an aluminum wiring terminal to the AC terminal block will cause
electro-chemical corrosion and weaken the cable connection reliability.
The copper to aluminum adapter terminal or an aluminum wiring terminal with a copper to
aluminum adapter washer must comply with IEC61238-1.
Do not mix up the aluminum and copper sides of the copper to aluminum adapter washer.
Ensure that the aluminum side of the washer contacts the aluminum wiring terminal, and
the copper side contacts the AC terminal block.
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Figure 5-7.
5 Connecting Cables
43