Electrician's Licensing Practice Exam

What is the primary purpose of bonding in electrical installations?

1. To improve voltage stability

2. To ensure electrical continuity

3. To enhance power output

4. To isolate circuits from ground

The correct answer is: To ensure electrical continuity

The primary purpose of bonding in electrical installations is to ensure electrical continuity throughout the system. Bonding involves connecting various metallic parts and equipment to create a low-resistance path for electrical current. This practice helps in maintaining the same electrical potential among connected parts, which enhances safety by preventing potential differences that could lead to shock hazards or equipment damage. By ensuring that various conductive sections of an electrical system are at the same potential, bonding effectively facilitates the operation of overcurrent devices, like circuit breakers or fuses, enhancing the overall safety of the installation. This is crucial during fault conditions, as it allows the electrical faults to be cleared safely and promptly, reducing the risk of fire or injury. While concepts like voltage stability, power output, and circuit isolation are important in electrical systems, they do not represent the fundamental objective of bonding. Instead, bonding is primarily focused on safety and continuity within the electrical installation.