All AC equipment is designed to operate at voltages within a specific range of its rated power to ensure optimal performance and safety. This range is determined to accommodate minor fluctuations in voltage that can occur during operation.
Given the multiple-choice options:
A. 10%
B. 25%
C. 20%
D. 15%
We need to identify the percentage that corresponds to the standard tolerance range for AC equipment.
The correct percentage for the voltage operating range of AC equipment is 10%. This means that AC equipment is typically designed to function correctly within a voltage range that is plus or minus 10% of its rated voltage. This allows some flexibility for voltage variations while ensuring the equipment operates safely and efficiently.
Thus, the correct answer is:
A. 10.
