Aluminium Cable Requirements; Connection Procedure - Sungrow SG33CX User Manual

User Manual
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5.5.3 Aluminium Cable Requirements

If an aluminium cable is selected, use a copper to aluminium adapter terminal to
avoid direct contact between the copper bar and the aluminium cable.
Fig. 5-3 Aluminium cable terminal connection sequence
Direct contact between the copper bar and the aluminium cable will cause
electrochemical corrosion and impair the reliability of electrical connection.

5.5.4 Connection Procedure

Disconnect the AC-side circuit breaker and prevent it from inadvertent
Step 1
reconnection.
Take out the AC junction box and loosen the swivel nut. Remove the
Step 2
seals and select an appropriate one according to cable outer diameter.
Lead the cable through the swivel nut, seal, and junction box
successively.
a b
c
Fig. 5-2 Dimensions of Terminal
Aluminium adapter
terminal
Flange nut
Aluminium cable
5 Electrical Connection
35