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33
figure
4‐4‐2‐3
4.4.3 DC side wiring
Caution, risk of danger
CAUTION!
The positive and negative of the PV array shall not be connected in reverse. A multimeter shall be
used to determine the polarity first, and then connect into the corresponding input ends of the
inverter.
DC side wiring method is as follows:
Step 1:
Disconnect the higher DC side power distribution circuit breaker, the DC side wiring
uncharged.
Step 2:
Measuring the open-circuit voltage of the PV array with a multimeter to ensure within the
allowable range.
Step 3:
With a multimeter to confirm the positive and negative.
Step 4:
Stripped end of the cable insulation
Step 5:
Crimp the copper nose
1. The copper core part of the strip good pressure line into the wiring copper
nose hole
2. Terminal Crimping Machine the the wiring copper nose pressed. Crimp the