What does the term "working voltage" refer to in the context of voltage detectors?

The term "working voltage" in the context of voltage detectors refers specifically to the normal operating voltage for the job. This is the voltage level that the equipment is designed to routinely operate at or is expected to encounter in typical application scenarios. Understanding the working voltage is crucial for ensuring that the voltage detector functions effectively and safely under the conditions it will face during its use.

Choosing the working voltage reflects the practical aspect of using voltage detectors in real-world situations, as it directly impacts the device's ability to perform its intended function. It emphasizes that the detector will be most effective and reliable within the range of voltages it was designed to handle under normal conditions, thus aiding in identifying energized or de-energized states accurately.