Red Seal Industrial Electrician Practice Exam

What is the primary function of a distribution panel?

1. To monitor electrical usage

2. To distribute electrical power to various circuits and protect them from overload

3. To convert high voltage to low voltage

4. To house backup power systems

The correct answer is: To distribute electrical power to various circuits and protect them from overload

The primary function of a distribution panel is to distribute electrical power to various circuits and protect them from overload. It acts as the central point where electrical supply enters a building or facility and is divided into multiple circuits, allowing different areas or systems to receive the appropriate amount of power. Each circuit is protected by a circuit breaker or fuse, which helps prevent overload and potential electrical hazards, such as fires. The panel ensures that the electrical system operates safely and efficiently, as it balances the load across various circuits and prevents excessive current from damaging the wiring or connected devices. This function is crucial for maintaining the integrity of the electrical system and providing reliable power to appliances, lighting, and other electrical devices throughout the building.