GRID-LIKE QUADRANGULAR ELECTRICAL MAIN WIRING

摘要

A grid-like quadrangular electrical main wiring comprises a quadrangular wiring basic network, any side of the quadrangular wiring basic network being a side of a new quadrangle, and is externally connected to three serially-connected breakers (1). The three serially-connected breakers (1) and any side of the quadrangular wiring basic network connected thereto, in total, four breakers (1), are connected to each other in a ring to form a new quadrangle. An electrical main wiring of a loop is led out from a connecting line between every two breakers (1) among the externally connected three breakers (1). The two sides of each breaker (1) are each provided with an isolation switch (2). The isolation switches (2) take the breaker out from the loop. Several new quadrangles connected according to the aforementioned connection formation manner can form the grid-like quadrangular electrical main wiring. The grid-like quadrangular electrical main wiring has the advantages of both the quadrangular wiring and 3/2 wiring. Compared with the 3/2 wiring manner, a part of nodes have higher reliability. With the number of independent loops being small, the ratio of the number of breakers to the number of led out wires is smaller than 1.5, thereby being more economical, saving the bus, occupying a smaller area, and making expansion convenient.