DISTRIBUTION PANEL distribution panel (also called a distribution board, breaker panel**, or **electrical panel**) is a crucial component in an electrical system that directs and distributes electrical power from the main source to various circuits within a building or facility. It is typically located in homes, commercial buildings, or industrial environments. Here are the key features and components of a distribution panel: 1. **Main Breaker**: This is the primary switch that controls the entire electrical supply to the panel. It also acts as a safety feature by shutting off the electrical flow in the event of a fault. 2. **Circuit Breakers**: These are individual switches that control and protect electrical circuits. Each circuit is assigned a specific breaker, which disconnects the power supply if there is an overload or short circuit. 3. **Bus Bar**: This is the metal bar inside the panel that carries electricity from the incoming power supply to the circuit breakers. 4. **Neutral Bus Bar**: The neutral bus bar is where all the neutral wires from various circuits are connected. It allows the current to return to the source. 5. **Grounding Bus Bar**: This is where the ground wires are connected, ensuring safety by directing any stray electricity safely to the earth. 6. **Incoming Power Supply**: This is the electrical input from the utility company or a power generator, typically coming in as high voltage and passing through a meter before entering the distribution panel. 7. **Wiring**: The distribution panel connects to the rest of the electrical system in the building via wiring that runs to outlets, appliances, and lighting. ### Purpose of a Distribution Panel: - **Safety**: By incorporating circuit breakers, it protects the entire electrical system from overloads, short circuits, and faults. - **Control**: It allows users to turn off individual circuits when needed, such as for maintenance or troubleshooting. - **Organization**: It provides a centralized point for managing and controlling electrical circuits. A well-maintained distribution panel is essential for the safe and efficient operation of any electrical system.
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