Recreational Vehicle (RV) Technician Practice Test

What is required when splicing a 120VAC wire?

1. Use a junction box

2. Twist the wires together

3. Insulate the wire ends with tape

4. Use a wire connector only

The correct answer is: Use a junction box

When splicing a 120VAC wire, it is essential to use a junction box because this practice ensures safety and compliance with electrical codes. A junction box serves as a protective enclosure for the spliced connections, preventing accidental contact with the exposed wires, which can lead to electrical shock or shorts. Additionally, the junction box provides an organized space for the connections, allowing for easier troubleshooting and future modifications if necessary. In many areas, electrical codes require that connections be made within a junction box, which also offers physical protection from environmental factors that could potentially damage the splices. Using a junction box creates a safe and secure environment for electrical connections, ensuring they remain protected over time. This practice significantly enhances overall electrical safety in recreational vehicles and other settings.