Voltage Drop/Rise Exceeds 1% — Check AC cabling

What does Voltage drop or rise greater than 1% mean?

The AC cabling should ensure a voltage drop or rise of less than 1% for optimal system performance. Exceeding this limit can affect inverter operation.

• AC cables are too long for the current being carried.
• AC cables are undersized.
• Incorrect cable selection for the specific circuit.

Click steps to track your progress.

1. 1

   Ensure AC cabling has a voltage drop or rise less than 1% in accordance with AS/NZS 5033.

2. 2

   Refer to tables for voltage variation of less than 1% for common PVC/PVC cable types.

3. 3

   Consult with a qualified installer to verify AC cable sizing and installation.

4. 4

   Ensure that the maximum voltage drop between the PV array and the inverter is 3% for DC cabling.