Elevator Mechanic Practice Exam

What is the minimum wire size used outside of travelers?

1. #10awg

2. #12awg

3. #20awg

4. #24awg

The correct answer is: #10awg

The correct answer is #12 AWG. In general, when it comes to wiring in elevators, particularly outside of travelers, the National Electrical Code (NEC) regulations and industry standards dictate specific wire sizes based on safety and the capacity to handle the electrical load without overheating. #12 AWG wire is commonly used for circuits requiring capacities of up to 20 amps, making it appropriate for various elevator control systems and safety features. This size offers a good balance between safety, flexibility, and adequate current-carrying capacity for most elevator applications, especially outside of travelers where additional environmental factors might need consideration. While #10 AWG is larger and would carry more current, it is typically reserved for higher-capacity circuits and may not be necessary for general applications outside of travelers. The smaller wire sizes (#20 AWG and #24 AWG) would not meet the minimal requirements due to their insufficient current capacity and higher voltage drop over distance, making them unsuitable for elevator systems.