NEC Apprentice of the Year (AOY) Practice Exam

Question: 1 / 400

What type of equipment requires a properly sized bonding jumper for safety?

Only high voltage equipment

All electrical equipment

A properly sized bonding jumper is essential for all electrical equipment to ensure safety and effectiveness in an electrical system. Bonding is the process of connecting various conductive parts to maintain the same electrical potential, which helps avoid dangerous voltage differences and mitigates possible shock hazards.

By bonding all electrical equipment, you create a safe pathway for fault currents to flow, which helps in the operation of protective devices such as circuit breakers and fuses. This is crucial for maintaining safety standards and ensuring the proper operation of the electrical system across various types of equipment, including low voltage and high voltage devices, generation equipment, and transformers.

While the other choices focus on specific categories of equipment, the necessity of bonding applies universally to all electrical systems. Proper sizing of the bonding jumper is significant; it must be adequate to handle the maximum fault current that could occur in the system. This ensures that the ground fault protection mechanism functions effectively across the board, highlighting the importance of universal application of bonding in electrical safety practices.

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Generation equipment only

Transformer equipment only

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