Electrician's Licensing Practice Exam

Which NEC Section discusses bonding jumpers?

1. Section 250-2D

2. Section 250-66

3. Section 250-122

4. Section 225.18

The correct answer is: Section 250-2D

The correct answer relates to the specific national electrical code provisions that address the requirements for bonding jumpers. The bonding jumper is used to ensure that all conductive parts are connected together to minimize the risk of electrocution and to ensure that fault currents have a reliable path back to the source for proper operation of protective relays or circuit breakers. Section 250-2D specifically discusses bonding jumpers, outlining their purpose and how they should be installed in various scenarios. This section plays a crucial role in ensuring the safety and effectiveness of grounding systems in electrical installations. Other sections, while they may touch on grounding and bonding aspects, do not specifically address bonding jumpers like this section does. This clear distinction makes Section 250-2D the correct choice, providing the necessary standards for the installation and maintenance of bonding jumpers in electrical systems.