What is an acceptable reading when conducting an AC voltage test?

An acceptable reading when conducting an AC voltage test depends on the expected voltage levels typically encountered in electrical systems. A reading of 120 VAC is standard for many residential and light commercial applications in North America. This value is commonly used for household outlets, appliances, and various electrical devices.

In contrast, while 60 VAC represents a lower voltage level that might be found in certain applications, it is generally not the norm for standard outlets. Similarly, 240 VAC is used in specific high-power devices and systems, such as dryers or HVAC systems, but may not apply to general testing scenarios. A reading of 30 VAC falls below the typical threshold encountered in most residential and commercial electrical systems, making it less likely to be considered acceptable in this context. Thus, 120 VAC is established as the correct and expected standard reading for AC voltage tests in these environments.