电气外文文献及翻译---高层建筑供配电系统设计-管理系统(编辑修改稿)

电气外文文献及翻译---高层建筑供配电系统设计-管理系统(编辑修改稿)内容摘要：

y is reduced, you can use a spare plug box layer off the 3layer 1 layer capacity rationing . This level distribution in the substation, select the circuit breaker to choose the setting value when the circuit breaker to adjust to changes at the end to adjust the load setting value。 in the bus and the transformer circuit breaker according to the choice of the general framework of values to select . For example: Route certain equipment capacity 530Kv, Kx take to calculate current of 704A, select the frame circuit breaker is 1000A, tuning is 800A。 current transformer for the 1000/50。 bus carrying capacity for the 1000A, this road can meet the maximum 1000A current load requirements, even if there is adjustment, power distribution switches and circuit can not make big changes. 6 layer distribution box set According to the division of layers of fire protection district, respectively numbered as A ~ K layers within the set level shaft for the retail lighting power distribution box, with one on one power supply shops in radial power. Should be noted that the forms of the plex layers of layers of fire partition, does not correspond to the lower, making some of shaft power in charge of the fire district at the same time, also responsible for the power supply adjacent to the fire district. At design time, using the principle of proximity, while also taking into account the burden of the whole trunk load conditions, so that each shaft as far as possible a more balanced load. 7 public area distribution box set Taking into account the future needs of the business redecoration of public areas must be reserved for power. Here the design needs to consider the following points: ① question of how much reserve power, lighting and electricity, which according to GB500342020 Architectural Lighting Design Standards table of Article and , mercial building lighting power density value, highend supermarkets, business offices as 20W/m2, under the decorative lighting included 50% of the total lighting power density calculation requirements, using the reserved standard 40W/m2. ② In order to facilitate the decoration in each partition set fire lighting in public areas and emergency lighting distribution box distribution box, in order to identify the electrical power distribution decoration cutoff point. ③ the staircase, storage rooms and other parts of the decoration does not need to do, set the power distribution circuit or a separate distribution box, try not to be reserved from the public area of electricity distribution board fed hardcover out. ④ control of lighting in public areas, the majority in two ways, namely, CBUS control system or the BA system, the use of CBUS has the advantage of more flexible control, each road can be fed out of control, adjustable light control。 shortings is a higher cost. BA system control advantages of using low cost, simple control。 disadvantage is that the exchanges and contacts for the threephase, threeway control may be related both to open, or both, in the decoration of the contacts required to feed the power supply circuit diverge to avoid failure blackouts. Design of distribution box 8 In the mercial real estate design, shop design。