HOLT Electricians Practice Exam

According to Section 430-28(2), what is the maximum length for motor tap conductors?

1. 15 feet

2. 25 feet

3. 30 feet

4. 50 feet

The correct answer is: 25 feet

The correct answer, which indicates that the maximum length for motor tap conductors is 25 feet, is based on the guidelines provided in the National Electrical Code (NEC) Section 430-28(2). This section outlines the requirements for branch circuits supplying motors, including the specific limitations on the lengths of tap conductors. Motor tap conductors are specifically the conductors that connect the motor to the branch circuit. The limitation of 25 feet is significant for ensuring that the tap conductors can effectively handle the required current without excessive voltage drop, which could impair the operation of the motor. This maximum length is established to ensure safety and efficiency, helping to avoid overheating and potential failures that could arise from longer conductor runs. By adhering to this requirement, electricians can ensure that installations are both code-compliant and reliable, promoting optimal performance of motor systems. Understanding these regulatory limits is crucial for all electrical professionals to maintain safety standards and ensure the longevity of electrical installations.