What is the limit for voltage variation at consumer terminals

What is the limit for voltage variation at consumer terminals:

  1. ± 1% of the declared voltage
  2. ± 3% of the declared voltage
  3. ± 6% of the declared voltage
  4. ± 10% of the declared voltage

Correct answer: 3. ±6% of the declared voltage

The limit for voltage variation at consumer terminals is ±6% of the declared voltage. This is to ensure the safe operations of equipment and connected devices.

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