Electrician's Licensing Practice Exam

Which section of the NEC addresses ground terminal identification?

1. Section 250-110

2. Section 250-126

3. Section 230-38

4. Section 310-16

The correct answer is: Section 250-126

The identification and proper handling of ground terminals in electrical systems are crucial for safety and effective grounding practices. Section 250-126 of the National Electrical Code (NEC) specifically addresses the requirements for grounding and bonding terminals, stating the methods for identification of ground terminals. This section ensures that grounding connections are clearly marked and accessible, which is essential for maintenance and safety during servicing electrical systems. Ground terminals play a vital role in preventing electrical shock hazards and ensuring the effective operation of electrical equipment. Proper identification helps ensure that individuals working on or near electrical systems can easily locate grounding points, minimizing the risk of accidents. The other sections mentioned do not focus on ground terminal identification. For instance, Section 250-110 covers grounding connections at service equipment, Section 230-38 deals with service equipment grounding for overhead conductors, and Section 310-16 pertains to conductor ampacity, which relates to the safe current-carrying capacity of wires. Understanding where these sections apply will enhance your comprehension of grounding requirements and their critical importance in electrical safety practices.