CHFM Practice Exam 2025 – Complete Study Guide

Low voltage systems are characterized by operating at levels below 50 volts, which is why this option is correct. In various electrical systems, high voltage could pose safety risks, making low voltage systems a preferred choice for numerous applications where less electrical power is necessary or where safety is paramount. The range established helps mitigate risks such as electric shock and is crucial in settings like telecommunications, lighting, and signaling systems.

The option indicating power levels above 100 volts falls outside the low voltage classification, as it pertains to higher voltage systems with different safety regulations and operational standards. The choice that specifies a range of 50-100 volts also does not align with the definition of low voltage since it includes voltages that can potentially be more hazardous. Lastly, while the option stating less than 12 volts does fall within the low voltage spectrum, it is more of a subset rather than capturing the broader classification defined by anything below 50 volts. Thus, recognizing the standard threshold for low voltage systems at below 50 volts makes this the most accurate choice.