Abstract
This design is mainly aimed at the sweet domain of electrical fire distribution box city hookup and secondary wiring diagram of a design, a connection through circuit breaker, contactor, relays, fuse of low-voltage performance and technical parameters of master and proper selection of wires, according to the corresponding distribution standard connected, simple operation, and has certain flexibility. The design of the secondary wiring for fire intensity of the secondary circuit design cut power requirements, the production safety, provide qualified electrical energy. By using autoCAD draw corresponding, quadratic hookup.
Through the design of city is sweet domain some high-rise building electrical fire distribution box, preliminary design of learning fire distribution box and working principle of the several low-voltage circuit, the selection standard in the box of fire strong cutting. This design is the combination of the theory and practice of power distribution system, a more profound understanding of the electrical design ability, improve.
Keywords：Circuit breaker contactor Among the relay
Short-circuit current
